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    Category: Heating and Cooling Repair

    Geothermal – SWM Will Take Over Technical Operational Management Of Geothermal Power Plant In Bruck – Renewable Energy Magazine - February 21, 2020 by admin

    Silenos Energy will turn over technical management of the plant to the Munich municipal utility.

    Stadtwerke Mnchen (SWM) is one of the largest energy and infrastructure companies in Germany as a municipal energy expert in the state capital of Munich.They provide the city with electricity, natural gas, district heating, district cooling and fresh drinking water in a safe and climate-friendly manner and they operate the 18 indoor and summer pools.

    Oliver Friedlaender, technical director of Silenos Energy, said, The decisive factor for us is SWM's many years of extensive expertise in the use of geothermal energy.The existing know-how of SWM, which guarantees safe, legally compliant operation as well as maintenance and repair, convinced usto have found a very good partner for the future. "

    Helge-Uve Braun, technical director of SWM, commented," SWM has been operating five of its own geothermal plants for more than 16 years and have already successfully taken on operational management tasks for third-party plants.We will bring our experience from construction and operation into the Bruck geothermal plant as a strong partner.We thank you for the trust that Silenos Energy has placed in us and are convinced that we can meet or even exceed the expectations placed in us.

    In Garching an der Alz, SWM will ensure the fully automated, technical operation of the geothermal plant.This includes permanent monitoring, regular system checks, the organization of maintenance work, troubleshooting and repair work.Thanks to the cooperation between Silenos Energy and Stadtwerke Mnchen, the partners not only exchange valuable experience and knowledge, but also work together for safe and reliable renewable energy supply in Garching an der Alz and in Munich.

    Silenos Energy is a joint venture between RAG Austria AG, Austria's most traditional exploration and production company, and STRABAG, the European technology company for construction services.In its core business, Silenos Energy combines the expertise of companies in power plant and plant engineering (STRABAG) and in deep drilling technology (RAG) for the development, construction and operation of geothermal plants.

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    CCAR shares threats, precautions for working on hybrid, fully-electric cars – Repairer Driven News - February 21, 2020 by admin

    A recent Coordinating Committee for Automotive Repair webinar explained both danger and precautions associated with what is likely to be an increasingly electrified fleet.

    OEMs are committing to sell more models with at least some electrification as the decade progresses. This might range from merely a hybrid powertrain like a Prius, a plug-in hybrid like a Volt, or a fully battery-electric car like a Model 3. All three categories of powertrain can pose a threat of shock or fire, according to CCAR safety content author Bob McGinn. Volvo, for example, has pledged every one of its next-gen models will be at a minimum a hybrid.

    McGinn said the Feb. 5 webinars content would pretty much apply to any electrified vehicle, be it a 20-year-old Prius to a modern Tesla. However, he said an older Prius probably used a nickel-metal hydride battery, which doesnt pose the risk of fire he described for a lithium-ion battery.

    Heres a little extra context: The current-generation Prius began with the 2016 model year and featured lithium-ion batteries in most versions, which Toyota called a change from the prior-gens Ni-MH and smaller, lighter. The OEM introduced an electric all-wheel drive model for the 2019 model year which used Ni-MH since nickel batteries are inherently resilient to extreme temperature change, Toyota wrote in 2018. All the front-wheel drive 2019 Priuses were lithium-ion, Toyota said.

    So even if youve been fixing hybrids for 20 years, dont assume theres nothing to learn about modern electrified powertrains. You might have merely gotten lucky or worked with a different battery chemistry than OEMs are using today. Which means OEM procedures and education like CCARs webinar are vital.

    A presentation slide described the webinar as related to hybrid and battery-electric vehicles that may have been compromised, not those under normal handling or diagnostics. A collision repair fell into the former category, as did students handling the vehicle, salvage yard operations and repairs to the electric drive, according to the presentation.

    Extraordinary events like a crash or penetration of the battery containment, a fire or a flood could lead to extremely dangerous events, McGinn said. He said such events could also be not necessarily collision, such as the chassis being grounded by striking a pothole or a loss of battery cooling.

    Electrified vehicles typically initiate a protection strategy automatically in a crash, but an inability to remove stored energy still creates two major hazards for first responders and auto technicians, according to McGinn.

    The first is electric shock, which can happen due to a breach of the batterys protective case, according to McGinn. He said technicians should approach a hybrid with the mindset the battery poses an imminent danger of shock. It should be presumed unstable until inspection in a detailed fashion deems otherwise.

    Both Ni-MH and lithium-batteries can produce shocks of up to 800 volts or more, McGinn said. Contact with anything protruding from the battery also has to be avoided, he said.

    Repairers can prevent being shocked by using the one-hand and live-dead-live rules mentioned above, according to McGinn.

    The one-hand rule means that the user only manipulates a high-voltage device with a single hand, McGinn explained. Only a single hand should be touching a lead, the vehicle or the ground at any time, he said. This prevents you from making a contact circuit and sending electricity through your body if isolation is lost, he said.

    The live-dead-live rule involves confirming that a hybrid or electric vehicle battery ostensibly powered down to 0 volts is truly dead. We need to know that zero actually means zero, McGinn said.

    Touch the meter leads to an alternate source like a 12-volt battery or other item with the appropriate test spec to see if the meter reads 12 volts, McGinn said. If it does, then immediately test the high-voltage power source thats supposed to be at 0 volts. If it reads 0 volts, test the 12-volt battery again to make sure the meter is still working correctly, he said.

    Meters should be tested and used in the same range for live-dead-live and system voltage absence tests, McGinn said.

    Repairers will also need personal protective equipment. This should include voltage-appropriate rubber gloves covered by a pair of approved leather gloves (which will minimize damage to the rubber ones) and boots of sufficient electrical protection, according to the presentation. A presentation slide suggested an institution might require a face shield able to provide both NFPA 70E arc Class 2 and ANSI Z87 impact protection. McGinn said work goggles alone werent sufficient.

    McGinn also suggested storing anything able to activate the vehicle (key fobs or keys, fuses, service plugs, etc.) in a box secured with two separate locks. Each lock requires a distinct key, and the two keys are held by two separate parties. (For example, a teacher and a student or an owner and technician.) The materials are only removed when everyone agrees the vehicle is ready for them.

    Lithium-ion batteries also pose a risk of fire. He said repairers should watch out for popping, hissing, leaking, dripping, smoke or sparks coming from the battery.

    They probably mean something significant, McGinn said.

    If theres damage to the battery case but no thermal event (fire) yet, a shop should still take precautions like isolating the vehicle outside, 50 feet away from flammables or combustibles, according to McGinn.

    The repairer would use a noncontact infrared or thermal imaging to determine if the battery is trending hotter or cooler, McGinn said. If its cooling or stable at ambient temperatures, than the repairer might proceed to further operations, he said. Trending or growing warmer is not a good thing, he said.

    The battery should also be monitored for changes in the thermal state during removal from the vehicle, according to McGinn. Your expectation should be that the part is poised to experience a thermal event at any time, he said. A removed battery should be stored outside with the 50-foot radius described above but also protected from the elements, according to McGinn.

    CCAR most strongly recommended auto body shops follow OEM handling and repair procedures for any compromised batteries contacting the automaker directly for help if necessary, according to McGinn.

    McGinn said you might wonder Is this guy crazy?' But the out-of-control blaze of a thermal runaway demands this level of paranoia, he said.

    Thermal runaway is accelerated by increased temperatures, which release energy that in turn raises the temperature further, McGinn said. He said theres no time limit for when it could happen after the battery is compromised.

    Thermal runaway could take place weeks after a collision or extraordinary event, McGinn said. It can happen without warning and as a result of many conditions, such as physical damage including crushing, tears or punctures; water intrusion; or the ignition or reignition of the battery after a fire, according to McGinn. Hybrids can contribute to the problem by providing another fuel source, he said.

    Once runaway happens, the ability to prevent the blaze quickly is extremely difficult, McGinn said.

    Typical Class A-D fire extinguishers simply do not possess the ability of water to cool such a blaze, according to McGinn. And even then, it can take more than 2,500 gallons of water to fully cool and extinguish a runaway battery, he said. The only option is to evacuate and let firefighters handle the battery, he said.

    (Electricity and water seems like a bad combination. However a Massachusetts fire departments testing determined it was OK to fight an electric vehicle fire with water because the ground and positive are built into a single container, McGinn said. Theres no completion of the circuit, unlike a structure fire to a building with utility electricity where a path of return would exist, he said.)

    Lithium-ion batteries can reach a specific energy of 185-200 Watt-hours per kilogram in terms of how much juice they hold, McGinn explained. But depending on the type of battery and, most importantly, its state of charge, the enthalpy of combustion can reach 1,388-5,500 Watt-hours per kilogram, he said. That number refers to the batterys ability to release heat, according to McGinn who called it a big jump from the 185-200 Watt-hours of specific energy.

    If the battery is on fire, all chemistries have the ability to expel much higher heat energy than the amount of electrical energy they contain, McGinn said. Testing of one vehicle battery type found a release of 5,200-8,200 Watts of heat energy per second, he said.

    For comparison, a birthday candle burns at 60 Watts per second (and 1,600 degrees), McGinn said.

    The more juice a battery has remaining, the sooner a thermal runaway occurs, he said.

    Three types of battery failures can produce a thermal runaway, according to McGinn. Thermal instability refers to factors like a fire or elevated temperature without the ability to cool itself. Electrirical instability can involve situations involving an overcharge, reversed polarity or a short circuit. Mechanical instability considerations can include the battery being dropped, involved in a collision or immersed in water.

    The magic number for a thermal runaway appears to be 374-392 degrees Fahrenheit, McGinn also observed.

    McGinn explained that heat generation is exponential, while dissipation is merely linear. This means the battery can increase in temperature very quickly but only cool gradually, McGinn said.

    Three types of runaways can occur. The first is preferred and benign, McGinn said. The reaction begins and might get close to thermal runaway but lacks get up and go the battery sheds heat more rapidly than it gained it. The battery cools, and the incident might not even set off a warning light on the vehicle, he said.

    An acceptable outcome might see one battery cell entering runaway, venting and exploding but countered by enough heat dissipation that the adjacent cells dont reach the runaway point, according to McGinn. This would definitely set a warning light, he said.

    An unacceptable outcome could start with a battery cell heating less than a degree a minute and rising until magically, at 374 Fahrenheit, that line goes straight up. The adjacent cells hit runaway, and a cascade failure burns up the entire battery, he said.

    A submerged vehicle presents a different risk scenario, according to McGinn. The water might not deplete all of the batteys charge, and electrolysis gases can arise as the battery arcs and shorts. McGinn suggested taking steps like opening the hood, trunk and windows to ensure such gases dont accumulate. We dont want any boom in the shop, he said.

    Shock and thermal runaway also are risks with a submerged vehicle, McGinn said. Just because the waters gone doesnt mean everybodys safe, he said. Submerged vehicles at a body shop or in storage still need to receive temperature monitoring and isolation until the compromised battery is extracted, he said.

    Electric Vehicle Safety webinar 02 05 2020

    Coordinating Committee for Automotive Repair YouTube channel, Feb. 6, 2020

    NASTF OEM repair procedure portal

    Featured image: Hybrid and other electric vehicle batteries should be monitored to avoid being caught up in a thermal runaway, according to the Coordinating Committee for Automotive Repair. (sankai/iStock)

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    Crowley TX HVAC Repair and Installation Heating and Cooling Services Launched – Newswire - January 13, 2020 by admin

    Crowley, Texas, company Superior AC & Heat launched its updated range of professional HVAC repair and installation services for clients in Crowley.

    ( -- January 10, 2020) -- Crowley, TX -- Crowley, Texas, company Superior AC & Heat launched its updated range of professional HVAC repair and installation services for clients in Crowley, Arlington, Fort Worth, Burleson and surrounding areas.

    Superior AC & Heat announced the launch of an updated range of HVAC repair and installation services for residential and commercial clients in Crowley, Texas. Since 1980, the company has been proudly serving the Dallas/Fort Worth area, providing fast and affordable services.

    More information can be found at

    Air conditioning systems are essentials for keeping indoor air clean, warm during winter, cool in the summer, and maintaining proper humidity levels for optimal comfort. The newly updated repair and installation services at Superior AC & Heat ensure that Crowley residents benefit from a fast, responsive, and reliable service.

    As one of the oldest HVAC companies in Texas, Superior AC & Heat follows all safety and efficiency standards as defined by the State of Texas as well as local building codes. The company can take care of each client's residential or commercial heating and cooling needs, while guaranteeing a courteous, professional, and efficient service.

    In addition, all technicians at Superior AC & Heat have been screened and are regularly drug tested. They will always arrive in clean uniforms, driving clearly marked vehicles.

    The expert team will identify the problem and repair the issue to keep the client's system functioning the way it should. When an air conditioning or heating system is not working properly, the professional technicians are ready to assist clients with a fast, responsive, and reliable service 24/7.

    Whether clients are looking for a new, efficient HVAC system for their entire home or need help with a tricky repair, the professional team at Superior AC & Heat can help. They are dedicated to helping each and every client make the best choice and complete the job quickly to minimize any interruption at the clients home or business.

    A satisfied client said: "Great company! Their bid was lower than the other two companies I called and their service was amazing. Mike had my unit back running in less than an hour. Very professional, will definitely use them for any future needs."

    Interested parties can find more by visiting the above-mentioned website.

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    Nailing It Down: Singing the praises of ductless heat pumps – The Daily World - January 13, 2020 by admin

    Nailing It Down

    By Dave Murnen and Pat Beaty

    Is your heating system meeting your needs? Is it clean, inexpensive and effective?

    Last week we compared a variety of different heating systems and noted the pros and cons of each. Those we discussed included baseboard heaters, heat pump/air handler with ductwork, gas, pellet stove and wood stove.

    Today we are concentrating on our favorite choice: the ductless heat pump. We really cant say enough about this effective, inexpensive option to heating your home.

    Ductless heat pump program

    After you get done reading todays column, consider whether you might be interested in installing a ductless heat pump. Its a good choice for many different living situations. And it might be a terrific choice for you, especially if you happen to be eligible for a program that installs free ductless heat pumps.

    We will discuss the details of the free program in next weeks column including giving the income qualifications. For now, read up on why we especially like this form of heating and cooling your home.

    Cheap alternative for heat

    In this climate, a regular outside heat pump and inside air handler furnace with ducts is an efficient way to heat a house. The technology of any heat pump basically recovers heat from the outside air and transfers it via a closed-loop refrigerant gas to the inside air handler furnace inside your house. The air handler blows circulating air through the air handlers radiator coil that was heated by the gas and delivers warm air throughout the house in your ducts and floor vents.

    In the summer, it will do the reverse drying out the indoor air and pulling the heat out of the air from inside the house and blowing it off outside at the exterior heat pump. The returning air feels cool, providing you with a nice air conditioned space.

    Ductless heat pumps are just as they sound, not needing any ductwork to convey the heated or cooled air.

    Their benefits are many. Here are just a few:

    They do not pollute.

    They are relatively easy and inexpensive to install, and sometimes come with a rebate from the PUD.

    They provide filtered air better for folks with allergies and health concerns.

    They require no ductwork in or under your house, saving you money on installation.

    They are inexpensive to operate paying for themselves in just a few years and lasting 20 years.

    They are easy to maintain.

    We think the drawbacks are few, but we do need to mention them:

    The heating units are visible, so the locations of both the exterior and interior units might initially be a practical or aesthetic concern.

    If the electrical power goes out, you lose your heat unless you have a compatible generator or another backup source.

    A house thats chopped up with lots of little rooms will not benefit from this type of system as much as one with a more open concept.

    Itll heat what it can see

    To be most efficient, you will want the inside ductless heat pump unit located where it can see the most living areas possible living room, dining room and kitchen where the space is more open and where you spend most of your time.

    If it can see down a hallway, it may also heat it and the rooms connected to it when doors are left open. Still, you may want to have some kind of backup heat in those rooms.

    Figuring ways to recirculate the air back to the unit is worth it. One little trick to help heated air get to where you want it is to open a window a crack in the room, which relieves pressure and draws in heated air. Some homes benefit from multiple indoor units or more than one setup. Your contractor will know which is best for what you want to achieve.

    The ductless air heating units are about 3 feet wide and a foot tall and protrude from the wall about a foot. The air flow can be pointed just the way it is needed in your house.

    While you may not have conceived of having a nice-looking heating unit on your wall, after about a week of clean, consistent, cheap heat, you wont even notice its there.

    To maintain a ductless heat pump, you just need to open the unit and rinse the reusable filters in the sink, dry them and put them back in the unit. If treated correctly, the filters shouldnt wear out.

    Consider for the future

    Maybe your oil or gas furnace, cadet wall heaters, electric baseboard or pellet stove, or ducted heat pump is nearing retirement age. If thats the case, before you replace it with the same, try researching a ductless heat pump.

    In our experience, most homes need just one unit. The cost runs about $4,000 for a 1-ton unit installed (more for bigger units or complicated installations).

    Most heating contractors on the Harbor can install a ductless heat pump. We suggest that you get three bids before choosing which contractor to go with as you would on any major home improvement project.

    Backups suggested

    A ductless heat pump will provide most of what you need to keep your home a comfortable temperature 90% of the time.

    However, if we get a deep, long-lasting cold snap, there simply wont be enough heat in the air for it to extract, so some sort of backup heat is suggested. Keeping your old system as a backup could make up the difference for short-term needs.

    You may want to have something like a furnace-rated propane or gas fireplace or pellet stove for those very, very cold days instead. Regular fireplaces are the last resort and you should never try to heat your home with a barbecue or other non-vented appliance.

    Dave Murnen and Pat Beaty are construction specialists at NeighborWorks of Grays Harbor County, where Murnen is executive director. This is a nonprofit organization committed to creating safe and affordable housing for all residents of Grays Harbor County. For questions about home repair, renting, remodeling or buying, call 360-533-7828 or visit 710 E. Market St. in Aberdeen. Our office is fully ADA-compliant.

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    How A Climate Change Nonprofit Got Eversource Thinking About A Geothermal Future – WBUR - January 13, 2020 by admin

    Natural gas utilities in Massachusetts are facing an existential crisis: they could be out of business by mid-century. That's because the state's 2008 Global Warming Solutions Act requires emissions from burning fossil fuels like natural gas be cut by 80% economy-wide by 2050.

    But now a solution that could help save the companies and the climate is at hand. Or, more accurately, underfoot. It's geothermal energy, which takes advantage of thebiggest energy storage system on earth: the earth itself.

    Our planet absorbs the sun's solar energy and stores it underground as thermal energy that can be used to heat and cool homes and businesses.Just a few yards down, the earth's temperature is a constant 50 to 60 degrees; warmer than the air above during winter, cooler in the summer. You can take advantage of the temperature difference using what is called a geothermal or ground source heat pump: plastic pipes filled with water and antifreeze pick up the heat from the ground, and the pump circulates it through a building.

    The technology, developed in the late 1940s, does away with furnaces, air conditioners and hot water heaters, and is the most efficient way to heat and cool a building. While it's widespread in some countries, like Sweden, it's been slow to catch on here.

    "The site has to be appropriate," said architect Lisa Cunningham, who recently designeda gut renovation of a private Brookline home using geothermal energy. The best sites for geothermal systems have lots of space to install horizontal pipes in relatively shallow ground. But because the Brookline lot is so small, workers had to drill two holes 500 feet deep.

    "One thing that's so great about having a project like this right in the heart of a very dense town, we're showing people it can be very cost-effective," Cunningham said, adding that the cost for installing the system in the Brookline home "came in less than a comparable gas system."

    But that includes thousands of dollars in state rebates and federal tax incentives that are expiring. Cost is still a big hurdle, said Zeyneb Magavi, co-executive director ofHome Energy Efficiency Team (HEET), a Cambridge-based environmental nonprofit.

    "Geothermal ground source heating has been around a long time, and it has usually been installed one house by one house individually," she said. "It works. However, it is a fairly high up-front cost, and you have to have the means and motivation to be able to do it."

    Magavi, a clean energy advocate, said she asked herself: Who already digs holes and puts pipes in the ground, has big money and is motivated to find a new business model? Her answer: natural gas distribution companies.

    Magavi was familiar with the gas utilities through her work along with HEETco-executive director Audrey Schulman and the Gas Leaks Allies helpinggas companies identify leaky pipes most in need of repair.

    Together, they found it would cost $9 billion over 20 years to fix the aging infrastructure. Magavi suggested they use for money to transform the industry instead.

    "The idea is that a gas utility takes out its leaky gas pipe and, instead of putting in new gas pipe, we put in a hot water loop," Magavi said. "If we're going to invest in infrastructure, let's invest in infrastructure for the next century. Let's not invest in infrastructure that was hot in 1850."

    HEET commissioned a study to investigate if there were a way to make geothermal energy appealing to both utilities and environmentalists.

    "We wanted something that was renewable, resilient, reliable, kept gas workers in jobs, [was] equal or lower cost than gas, and safe and doable," Magavi said. She found that "networking" connecting geothermal systems to many homes and businesses ticked all of the boxes.

    "The beautiful thing is that when you interconnect them, the more customers you put on the system, the more efficient it gets," Magavi said.

    Magavi showed the results to senior officials with Eversource, the largest energy delivery company in New England.

    It was an unusual pitch, but she felt that "they also understood that we were approaching this always from a data- and fact-based conversation, and they took us very seriously," Magavi said.

    Eversource Senior Vice President and Chief Customer Officer Penni Conner said the company likes the idea.

    "This looks a lot like the gas business that we're in except it's totally clean," Conner said. "Eversource can bring the capital and the expertise to this. We know how to build infrastructure."

    Eversource conducted its own study of networked geothermal heat pump systems, leading it to propose three different pilot projects to Massachusetts regulators in order to prove that the networked systems are feasible.

    Under a networked system, homes and businesses would own the geothermal heat pumps, while Eversource would own and manage the system of pipes, sensors and pressure regulators, Conner said. That would convert the gas utility into a networked, thermal management company.

    "Maybe I have a laundromat that has a lot of heat load, maybe it's working a lot in the evening," Conner said. "So they are leveraging putting heat back into the system potentially in the evening when others need it for cooling. So you get that benefit."

    State regulators are now reviewing Eversources's proposals for networked pilot projects, and could give the go-ahead within a year.

    "I think we can move fast," Magavi said. "My vision of the future is that we have wires delivering us renewable energy competing with pipes delivering us renewable energy. So thermal power and electric power grids, and the two benefit each other."

    Geothermal energy heating our homes, with pumps powered by solar- and wind-generated electricity. If this unusual collaboration between a natural gas utility and an environmental organization pays off, a clean energy future could be right under our feet.

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    Winsupply Acquires Rosen Supply, Plumbing and Heating Distributor – ACHR NEWS - January 13, 2020 by admin

    Winsupply Acquires Rosen Supply, Plumbing and Heating Distributor | 2020-01-10 | ACHR News This website requires certain cookies to work and uses other cookies to help you have the best experience. By visiting this website, certain cookies have already been set, which you may delete and block. By closing this message or continuing to use our site, you agree to the use of cookies. Visit our updated privacy and cookie policy to learn more. This Website Uses CookiesBy closing this message or continuing to use our site, you agree to our cookie policy. Learn MoreThis website requires certain cookies to work and uses other cookies to help you have the best experience. By visiting this website, certain cookies have already been set, which you may delete and block. By closing this message or continuing to use our site, you agree to the use of cookies. Visit our updated privacy and cookie policy to learn more.

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    Gaining Maximum Return on HVDC Systems with Targeted Refurbishments – Transmission & Distribution World - January 13, 2020 by admin

    Originally constructed in 1978, Great River Energys high-voltage direct-current system is one of a few of its kind in the world and one of the electric generation and transmission cooperatives most valuable assets. The co-ops high-voltage direct-current (HVDC) system consists of a 436-mile (702-km) HVDC transmission line and two converter stations, one at each end of the line, that convert electricity from alternating-current (AC) power to direct-current (DC) power and vice versa. Nearly all the power is delivered from Coal Creek Station the co-ops largest power plant in Underwood, North Dakota, U.S., to Minnesota, where the utilitys 28 member co-ops are located.

    After eight years of planning and preparation, Great River Energy recently upgraded the unique HVDC system, successfully completing one of the most significant transmission projects in its history. The utility and ABB the manufacturer of its HVDC system completed the upgrade from March 7, 2019, to May 17, 2019, during a power plant outage that was planned for regular maintenance. As part of the upgrade, all the equipment in the converter stations was replaced with todays technology. This included replacing the conversion equipment (valves), controls, cooling towers and smoothing reactors as well as updating the DC yards. All the work either took place inside or directly supporting the converter stations, not on the transmission line itself.

    Although ABB has completed other similar HVDC system upgrades, this project was unique because the work had to be done in an extremely tight construction window. With only a 74-day power plant outage in which to work, Great River Energy carefully planned for years to ensure the work could be completed on time, on budget and safely.

    Working Ahead

    Great River Energy, ABB and its contractors developed a detailed schedule in Primavera, a project management software tool. The schedule captured every task that had to be completed during the outage, how long each task should take and the date by which each task should be completed. About 1350 tasks were identified for each of the two converter stations. The design of the schedule helped to make the critical-path elements clear to the contractors. Everyone knew what the priorities were to ensure resources were available and tasks completed safely and on time. This schedule had to be followed to the letter to ensure the outage went smoothly.

    Knowing the construction window was tight and nonnegotiable, Great River Energy took every opportunity to ask what could be done ahead of the March 7 outage start date to eliminate tasks and ensure success. As a result, five major items were completed ahead of time.

    First, a plan was put in place to ensure all major equipment was delivered and ready on-site prior to the start of the outage. To facilitate this, Great River Energy constructed a 35,000-sq ft (3251-sq m) permanent facility at the Coal Creek Station site in North Dakota and ABB constructed a temporary 20,000-sq ft (1858-sq m) facility at the Dickinson converter station in Minnesota. This enabled ABB to deliver all major equipment to the sites well before the start of the outage and preconstruct sections of the new valves in the winter of 2018.

    Second, Great River Energy proactively worked with the Midwest Reliability Organization, the regional organization for the North American Electric Reliability Corporation (NERC), to discuss the co-ops plan for ensuring compliance. Great River Energy was one of the first utilities to complete a project of this nature since versions 5 and 6 of the Critical Infrastructure Protection (CIP) standards became mandatory. Great River Energy had to manage the compliance of both the old control systems and the new control systems while they were being installed and uninstalled before, during and after the outage. This included tracking more than 2000 cyber assets subject to NERC CIP requirements.

    To help test compliance and the plan overall, in early 2019, the co-op and ABB replaced the controls on six AC filter banks. This also reduced the amount of equipment that would have to be commissioned during the 74-day outage.

    Third, the floors of the converter station buildings were prepared to ensure they could withstand the weight of the cranes coming in and out of the buildings to demolish the old valve stacks. The floors of the old buildings were not designed for the weight of the cranes. If the floors collapsed during demolition, the impact would have been catastrophic.

    To reinforce the converter station floors, ABB installed about an additional 60 braces and posts. The floors were covered with 1/2-inch to 3/4-inch (12.7-mm to 19-mm) thick steel plates. Weighing between 800 lb and 1000 lb (363 kg to 454 kg) each, the plates were hauled in by a forklift and put in place with magnets.

    Fourth, in the spring of 2018, during a regularly planned maintenance outage, crews staged equipment, cut holes in the basement walls of the converter stations, and poured concrete for foundation piers, cooling towers and cable trench.

    Fifth, to eliminate airborne particulates, Great River Energy hired contractors to prepare pipes that were coated in lead-based paint and had to be cut during demolition.

    Demolition and Construction

    The first day of the outage, March 7, was dedicated exclusively to environmental preparations Great River Energy staff had to make to ensure the work site was safe for contractors. Because the converter stations were built more than 40 years ago, a significant amount of hazardous material had to be addressed.

    During the first 24 hours of the outage, Great River Energy contractors removed and disposed of 12,000 gal. (45,425 L) of glycol from the old air-cooled valves and 8600 gal. (32,555 L) of mineral oil used in the smoothing reactor. Certified contractors also removed non-friable asbestos from the heating ventilation and air conditioning ducts.

    Great River Energys HVDC system is made up of two poles, which the co-op refers to as pole 1 and pole 2. The 74-day outage plan was designed for a 42-day outage of pole 1, a 35-day outage of pole 2 and an overlap of three days where both poles would not be operating.

    On the second day of the outage, after a safety meeting, ABB immediately began demolition of pole 1 equipment, specifically on the fan room and valve hall. The task was much like gutting an old car; everything had to come out. In this case, it was like working simultaneously on two similar carsthat were 436 miles apart.

    Coordination was a daily task for Great River Energy and ABB as work schedules continually were revised and communicated to ensure the more than 150 contractors knew what to do next at each site. The time devoted to developing the meticulous schedule paid off. The work closely followed the original plan, except for a few minor issues and some unwelcome weather. Crews in North Dakota worked in high winds and significantly below-average temperatures, and Minnesota got piles of snow. More than 100,000 cu yards (76,456 cu m) of snow had to be removed from the Dickinson station parking lots and the DC yard so that project work could continue.

    Safety also was a key focus. Before each shift began, a safety meeting was held with all contractors to talk about what work had to be accomplished. Each contractor then had a tailgate meeting to discuss the specifics of the tasks.

    Despite the challenges, by the end of the day March 12, the pole 1 valve halls at both the Dickinson and Coal Creek Station converter stations were empty, ahead of schedule. Crews transitioned from demolition to installation, with April 8 in mind. That was the day pole 1 had to be installed entirely, so commissioning could begin. To move to the next stage of the project, ABB had to demonstrate the pole 1 system was ready for operation.

    Bi-Pole Outage

    April 15 to April 17 were some of the most critical days of the outage because some of the work could only be completed with the system entirely out of service, and, during that time, Great River Energy would not be selling any power from Coal Creek Station into the market. In addition, this outage required coordination not only with the plant but also the regional transmission organization, the Mid-Continent Independent System Operator (MISO), and Blue Flint Ethanol, which relies on Coal Creek Station for steam.

    During the bi-pole outage, the control systems that make the two poles work together had to be replaced and fully commissioned a large task to accomplish in just three days. The replacement was completed on schedule, but commissioning was delayed for one day because Great River Energy and ABB felt crews needed rest to ensure they could work safely.

    After the bi-pole outage, on April 18, pole 1 was energized and the pole 2 outage continued. Crews repeated the same process for pole 2 they had followed for pole 1. On the first day, Great River Energy and its contractors removed hazardous waste. Next, they demolished the old valves and installed the new technology.

    As expected, the process for demolishing and installing the equipment for pole 2 was more efficient because lessons had been learned from doing the work on pole 1. The outage time specified in the contract was reduced by seven days and ABB was able to cut the night shift one and a half weeks into the pole 2 outage. Ultimately, ABB completed the work and was ready for commissioning by May 13.

    Fault Testing By Drones

    Before the system could be placed in service, the protection system had to be tested as well as the line fault locator, to ensure it would locate the position of the fault correctly along the line. Great River Energy had researched various methods for staging faults to do the testing. Ultimately, the co-op chose to use an unmanned aircraft system (UAS) to carry a copper wire into the line, which caused the fault. Of the options available, using a UAS clearly proved to be the safest and most efficient.

    Staged faults were performed on both poles, some near the Coal Creek Station converter station, some at the midpoint of the HVDC line and some close to the Dickinson converter station. A significant amount of preparation had to be done to ensure the fault testing process would follow Great River Energys technology use policy and comply with all U.S. Federal Aviation Administration rules and regulations. The co-ops line technicians were on-site with the fault testing team in case something unexpected happened and a repair was needed.

    However, the most challenging part of the process was scheduling a fault because this required coordination with Coal Creek Station, both converter stations, MISO and the weather. The testing could not take place if winds were above 22 mph (35 kmph) or there was any precipitation. Ultimately, the schedule came together. Testing was performed over three days, May 15 to May 17, and generally went as expected.

    Later in the afternoon on May 17, two days ahead of schedule, ABB cleared Great River Energy to proceed to commercial operation. Construction and testing were complete. The upgrade was finished.

    The Results

    Great River Energy successfully completed a major upgrade to its HVDC system on time and under budget, safely replacing all the equipment in two 40-year-old converter stations with todays advanced technology in a total of 72 days. Although many people contributed to the project, a core group of employees and partners including ABB, Teshmont Consultants LP and Michels Corp. ultimately overcame complex and unique challenges to make it happen.

    There were unique safety and environmental considerations throughout the project, and communications was an ongoing challenge. People and equipment were located around the world in nine countries, bringing different cultural norms and time zones into play. Great River Energy employees spent a total of more than 900 days away from home, 350 of those overseas. At the peak of construction, approximately 150 contractors were working at each converter station site 24 hours a day, six days a week. In normal working conditions, only three employees would be at each site.

    Great River Energys HVDC system already is delivering significant benefits. The amount of energy needed to operate the converter stations has been reduced dramatically. Additionally, while the old water-cooled valves used approximately 4 million gal. (15.1 million L) of water each month, the new air-cooled valves do not use any water.

    In the end, the key success measure is continued world-class reliability. Great River Energys HVDC system has been one of the most reliable in the world over the last 40 years. Now, with todays advanced HVDC technology in place, the expectation is the co-op and its member-owners can look forward to another 40 years.

    For more information:

    ABB |

    Blue Flint Ethanol |

    Michels Corp. |

    Midwest Reliability Organization |

    Mid-Continent Independent System Operator |

    Teshmont Consultants |

    Gaining Maximum Return on HVDC Systems with Targeted Refurbishments - Transmission & Distribution World

    Midland business celebrates 40 years – Midland Daily News - December 5, 2019 by admin

    All Seasons Heating, Cooling and Insulation has been a local staple since 1979

    By Ashley Schafer,

    A thank you note hangs on a corkboard inside All Seasons Heating, Cooling and Insulation Tuesday, Nov. 26 at 1819 E. Airport Road in Midland. (Katy Kildee/

    A thank you note hangs on a corkboard inside All Seasons Heating, Cooling and Insulation Tuesday, Nov. 26 at 1819 E. Airport Road in Midland. (Katy Kildee/

    A thank you note hangs on a corkboard inside All Seasons Heating, Cooling and Insulation Tuesday, Nov. 26 at 1819 E. Airport Road in Midland. (Katy Kildee/

    A thank you note hangs on a corkboard inside All Seasons Heating, Cooling and Insulation Tuesday, Nov. 26 at 1819 E. Airport Road in Midland. (Katy Kildee/

    Midland business celebrates 40 years

    When a homeowner wakes up to an uncomfortable atmosphere too hot or too cold they might find themselves calling in outside help to fix their furnace or repair their A/C unit.

    Already in a sour mood, the homeowner is put at ease after a call to All Seasons Heating, Cooling and Insulation, where the dispatcher assures them someone will be on their way soon.

    Upon arrival, the technician makes sure to update the homeowner throughout the process in clear, understandable terms, alleviating any concerns they might have.

    Once the technician finishes his or her work and has left, the homeowner thinks of several more questions, but is easily able to call the dispatcher and have them answered, or have any other follow-up problems fixed right away.

    Even then, they are reassured by a 100% satisfaction guarantee.

    According to All Seasons co-owners Paul and Mark Kohtz, this is the routine they strive for within their HVAC services business, which is celebrating 40 years.

    Founded by their father, Jeff Kohtz, All Seasons has been a staple in Midland since 1979. Jeff started the business out of his home, where he and his wife ran the operation, eventually adding a couple employees.

    When we were still at home, after about the second year in business, (my wife) went down to the tax guy to have help setting up the books the guy says it really dont matter; youre not going to make it here anyway. Most businesses fail within the first five years. That was real encouraging for us, Jeff said jokingly, and noted they switched accountants after that.

    However, the Kohtz's operated All Seasons with a certain philosophy, which has proved to keep the business going.

    We always wanted to take care of the customer. You know, when a customer lets you in their house theyre really trusting you to be in their home so theyve got to trust you, what youre going to do to their home, how youre going to treat it, he said. So, obviously, being in business, if youre going to keep growing, youve got to treat the people right. If you havent, youre going to lose that customer and theyre going to tell their friends.

    Then, in the late 90s, All Seasons moved outside of the Kohtzs home to 1819 Airport Road, where it is still located today. In 2011, Jeffs sons, Mark and Paul, took over, making it a generational, family business.

    We did not necessarily plan to take over I went to school in business and ventured out into the world a little bit and a few years later, I came back to rejoin up with the family and the business, Paul said. Mark had some other plans when he was younger as well, but we both found our way back here. We both just really enjoyed the atmosphere of a family business.

    Since taking over, Paul and Mark have focused on becoming an expert in servicing homeowners in their residences. They said theyve dabbled in construction work, but have since strayed away from doing anything other than home visits.

    We havent really expanded our territory at all, were just real focused on doing real good at what we do here locally in Midland, Paul said. Our focus is just always keep our employees busy so we dont have to dabble into things that were not experts on.

    In addition, Paul said they treat all of their customers like family giving every person the same recommendations they would give their own grandmother.

    The family-like treatment doesnt end with the customers, however. Paul and Mark said they strive to make All Seasons a desirable place to work for all their employees, which has grown to 17 people since they took over.

    Each of our customers we have is very important and every person that works with us is very important too because theyve got families and dreams and aspirations, and we just want to be able to help them grow too, Mark said. So, thats part of us growing, is them growing with us.

    Looking to the future of All Seasons Heating, Cooling and Insulation, the Kohtzs said they want to continue growing the business but want to keep their services local. They will also continue to give back to the community, which they do by donating to Toys for Tots, American Legion and the Reese Endeavor of Midland.

    Its nice to give back to the community thats been good to you too, Jeff said.

    To learn more about All Seasons, visit

    Originally posted here:
    Midland business celebrates 40 years - Midland Daily News

    Waste heat reuse and CO2-neutral energy supply concept among winners of German energy efficiency awards – Envirotec - December 5, 2019 by admin

    Investments in climate protection and energy efficiency are worthwhile, even from an economic point of view a verdict that appears amply demonstrated by the winners of the four categories of this years Energy Efficiency Award, an annual prize presented by the German Energy Agency (Deutsche Energie-Agentur, or dena) to companies that pursue innovative and highly successful ways of reducing energy consumption and harmful emissions. The award endows a total of EUR 30,000 in prizes.

    The following have been recognised for their achievements:

    Energy efficiency and climate protection do not come for free. But those who invest intelligently create advantages for their company and their environment, said Andreas Kuhlmann, Chief Executive of dena, at the award ceremony during the dena Energy Efficiency Congress in Berlin. Climate-friendly business models work and also contribute to an integrated energy transition, added Andreas Kuhlmann.

    The successful projects that received the Energy Efficiency Award show that companies are taking responsibility for a carbon-neutral future. Climate protection and economic activity are not mutually exclusive, said Andreas Feicht, State Secretary at the Federal Ministry for Economic Affairs and Energy, at the award ceremony.

    In all, 142 projects were entered for the Energy Efficiency Award this year: 108 entries came from Germany and a further 34 from European or international regions. The award is funded by the Federal Ministry for Economic Affairs and Energy (BMWi) and supported by premium partners, Danfoss and KfW.

    Complete information on the competition can be found at Further information about the dena Energy Efficiency Congress is available at

    Further details about the winners in specific categories are included below:

    Competition category: Energy Transition 2.0

    Adolf Gottfried Tonwerke GmbH and Orcan Energy AGThe family firm, Adolf Gottfried Tonwerke GmbH, extracts and refines clay and other raw materials for the ceramic and clay processing industry in Groheirath (Bavaria). After successfully implementing its initial energy efficiency measures, the company then pursued the objective of extending the waste heat usage already achieved, but limited to production, to its firing processes. It focused on two rotary kilns used for firing clay. The aim was to harness waste heat from the resulting high exhaust temperatures, with as few changes as possible to the existing process.

    Its collaboration with Orcan Energy AG provided a suitable solution. This company, specialising in ORC (Organic Rankine Cycle) equipment, planned and implemented the ORC module. Due to its flexible behaviour, the module can react to fluctuating amounts of heat within seconds and is also highly efficient when converting heat into electricity at part load. The ORC module also features a second high temperature circuit, thereby enabling it to generate higher temperatures in the waste heat flow.

    Integrating the ORC equipment into the existing rotary kiln system posed a technical challenge for the project. As a result, an additional exhaust gas heat exchanger (EGHE) had to be used for the exhaust gas flow from kilns 1 and 2. High dust content in the exhaust gas exacerbated the situation. The final solution involved an exhaust gas heat exchanger specially designed for this application. Its operation facilitated the ORC solution and reduced the utilisation factor of the suction fan, saving a further 15 kW of energy. The savings achieved are verified by an integrated control unit that continuously measures the generated electrical output.

    Energy efficiency measures

    ORC (Organic Rankine Cycle) equipment to convert waste heat into electricity.Installation of a special heat exchanger for exhaust gas with high dust contentDust/ash separation and pipeline construction

    Successful savings:

    Reduction in electricity consumption: 304,000 kWh/yearReduction in CO2: 181 t/year

    Energy efficiency competition category: from clever to digital

    Ostsee-Zeitung GmbH & Co. KG and Energieberatung MV / consultant engineers for physical process engineering

    Ostsee-Zeitung GmbH & Co. KG is part of the Madsack Media Group and publishes its eponymous regional daily paper in Mecklenburg-Vorpommern. In early 2017, the printing plant experienced technical problems with the cold water circuit for its printing press, prompting it to take a detailed look at the entire cooling process. Ostsee-Zeitung relied on external support from Energieberatung MV. The consultant engineers who specialise in physical process engineering, had already successfully implemented systematic optimisation and heat transfer measures for the publishing house in the past.

    An analysis of the thermal and electrical load measurements concluded that the cooling process was clearly over-dimensioned, so that the equipment could not be meaningfully operated, either in terms of demand or energy efficiency. It became clear that the existing supply pressure and water volume flow were not actually needed. The necessary cold water parameters, relatively high at around 22 C, also revealed considerable potential for using free cooling. The cooling process for the printing press was subsequently redesigned and optimised, to allow free cooling to be retrofitted. For this purpose, a new, external dry cooler and water-glycol circuit were connected to the water circuit of the existing process cooling via a plate heat exchanger.

    The new cooling circuit, consisting of free and mechanical cooling, is integrated and regulated in such a way that the printer is cooled using minimal electric power for fans and pumps whilst simultaneously improving the process reliability. By adjusting the working temperature of the cooling water to around 23 C, free cooling can perform the entire cooling process up to an outside temperature of around 19 C. Free cooling is used for around 7,500 operating hours per year. If the outside temperature exceeds a specified value (cooling limit), free cooling is disabled. Cooling then takes place as a combination of free cooling and a mechanical cooling unit. The success of this measure has been verified via the building management system. Ostsee-Zeitung therefore saves 105,000 kWh of electricity and 59 tonnes of CO2 per year.

    Energy efficiency measures

    Optimisation of cooling during the printing processRetrofitting free cooling in addition to the existing cooling unit

    Successful savings:

    Reduction in electricity consumption: 105,000 kWh/yearReduction in CO2: 59 t/year

    Competition category: energy services and energy management

    EnergieDienstleistungsGesellschaft Rheinhessen-Nahe GmbH

    In 2018, EnergieDienstleistungsGesellschaft Rheinhessen-Nahe mbH (EDG) took over an outdated, over-sized heating plant at Hahn Airport, which also supplied the Rhineland-Palatinate Police Academy and other buildings. The dilapidated infrastructure required extensive refurbishment, which is why EDG planned and independently implemented comprehensive modernisation measures. The heating plant responsible for energy production, with its outdated, oversized equipment, was refurbished while reducing heat generation performance by 60%. The associated, equally oversized and dilapidated district heating network was also completely renewed, taking account of energy efficiency aspects with regard to network parameters (reducing system temperatures, halving the volume flow in favour of lower return flow temperatures, optimising the differential pressure). Waste heat from a neighbouring biogas plant was integrated into the new local heating network via a CHP station.

    All the heat generation and distribution equipment was remotely interlinked via an energy management system and can now be continually monitored and controlled via EDGs central remote monitoring. All the consumption and efficiency-relevant data is digitally measured, recorded as 1/4-hourly values and graphically displayed, thereby enabling constantly optimised plant operation in line with efficiency and commercial criteria.

    The owners of all the buildings connected to the local heating network were also involved. Efficiency measures were therefore discussed and implemented, thereby facilitating an energy efficiency network. These include the conversion of injection-type ventilation systems to mixing-type systems, installation of appropriate thermostats, optimised, energy-efficient hot water supply using intelligent control technology, taking account of hygienic aspects, and the hydraulic balancing of heat consumers. This local heating network is a practical, transferable example of the optimisation of district heating networks in combination with the optimisation of consumers heating needs. As well as the traditional modernisation of heating networks, it also focuses on optimising consumers heating needs, in particular.

    Energy efficiency measures

    Modernisation and energy-efficient optimisation of the local heating networkFeed-in of renewable heat from a biogas plant with CHPReturn flow temperature-limiting measures at consumers properties to reduce the network temperatureCentral remote monitoring

    Successful savings:

    Reduction in heat consumption: 3,000 MWh/yearReduction in CO2: 2,440 t/year

    Audience Award concepts for improving energy efficiency

    GETEC heat & power GmbH and Clariant AG

    The Swiss chemical group, Clariant, is currently building a bioethanol plant at its Romanian factory in Podari. In future, bioethanol will be produced here from residual agricultural materials such as wheat straw, for example.

    The energy service provider, GETEC, developed a CO2-neutral energy supply concept for the factory. This uses lignin, the residual material arising from the bioethanol production process, as an energy source. This lignin is combusted in a fluidised bed boiler, turning it into an energy source. The use of a back-pressure steam turbine (8.5 MWel) provides the plant with a CO2-neutral supply of steam and electricity.

    GETEC is therefore providing all the services, from concept development, through planning, funding and construction, to operation, maintenance and repair. According to the latest plans, the project will be fully implemented by the end of 2021.

    Continue reading here:
    Waste heat reuse and CO2-neutral energy supply concept among winners of German energy efficiency awards - Envirotec

    Heating and Air Conditioning Repair – Service Champions - May 29, 2019 by admin

    A past due heating and air conditioning repair can get expensive. Thats why homeowners should get ac repairs done as soon as possible.

    If you procrastinate on heating and air conditioning repairs, you can expect:

    Avoid central air problems from costing too much. Get those heating and air conditioning repairs done now. To start, here are two heating and air conditioning repairs to schedule.

    Blower motors help move air in and out of the house and furnace. Without them, air stands still, inside the home and inside the air ducts. Either way, without functioning blower motors, homeowners never feel the temperature of their air change even if the rest of the furnace system works just fine.

    There are several reasons why blower motors become dysfunctional.

    Blower motors are a simple but necessary heating and air conditioning repair.

    Since the rest of the central air system is fine, the thermostat continues to prompt heating and air conditioning. However, because air cannot move without the blower motor, the system fires up for nothing.

    This causes problems like:

    Schedule your heating and air conditioning repair for the blower motor to get your home back to normal.

    Heating and air conditioning repairs for the condenser unit are essential. Fortunately, homeowners can tell right away if a repair is needed.

    You might hear funny noises coming from the condenser unit. Or, you might see your air conditioning performance take a dip. Because the condenser unit is crucial to the air conditioning process, anything wrong with air conditioning itself usually points back here.

    Depending on the specific issue, you have heating and air conditioning repairs for:

    To remedy this and to avoid heating and air conditioning repairs, homeowners are encouraged to clean the condenser unit from time to time. Especially in the wintertime when air conditioning is idle, plenty of debris and other issues accumulate.

    Problematic evaporator coils lead to so many time-consuming issues. Why do evaporator coils need heating and air conditioning repair?

    When airflow passes over the evaporator coils, tiny particles like dust and bacteria stick onto the coils. Over time, thousands of particles collect and coat the evaporator coils. As air continues to flow over them with each cycle, particles add on and break off, entering into the home air supply. This results in very low indoor air quality filled with pathogens, particles and other microorganisms.

    In addition, frozen evaporator coils result in mediocre air conditioning. So while the thermostat might read 77 degrees, home air gets nowhere close.

    Frozen evaporator coils require heating and air conditioning repair by a professional technician. He or she has the tools necessary to carefully and properly remove buildup and growth without damaging the coils.

    What is the easiest way to save the cost of heating and air conditioning repairs? Regular HVAC maintenance.

    With regular HVAC maintenance, homeowners have:

    Just needed twice a year, homeowners can avoid 90 percent of heating and air conditioning repairs with HVAC maintenance.

    Whether new or old, there are some facts homeowners should all know about their heating and air conditioning.

    Unfortunately, most homeowners do not know much. In fact, the majority does not even know the benefits of heating maintenance or air conditioning maintenance. They put off repairs and work the system until it is beyond repair, even if it young.

    Knowing just a few things about the heating and air conditioning system helps. It helps the system last longer, and work better and smarter for your home.

    Energy loss becomes a serious issue for homeowners. Typically, this has more to do with the home than the heating and air conditioning itself. Yet, there are still some places and reasons why energy loss would happen within the heating and air conditioning system.

    It may be that:

    If heating and air conditioning doesnt feel as warm or cool as youd like, it could be related to more than just heat loss. There may be issues with the refrigerant or the compressor. However, heat loss generally links backs to the home rather than the heating and air conditioning system.

    When the home is poorly insulated, heat escapes with every opportunity. This includes windows, doors, floors, walls and the roof. Proper insulation is vital to reducing heat loss. Homeowners unwilling to insulate their homes can use other tricks to help, but nothing will replace actual insulation.

    If you experienced significant heat loss or energy loss, consult your preferred HVAC contractor. He or she will evaluate your home as well as the heating and air conditioning system to locate the issue.

    With heating and air conditioning comes condensation. To keep water from pooling, the condensate line and drain pan are in place to safely remove excess water away from the system. However, there are many places where water can stick. Most commonly, this is the box of evaporator coils.

    The evaporator coils are essential to the cooling process. Warm indoor air directly flows over these cool coils. As a heat transfer takes place, water results. In addition, with the air supply comes particles that stick to the wet coils. Over time, this buildup develops into microbiological growth.

    It is also possible for the evaporator coils to freeze. This happens when there is not enough air inside the heating and air conditioning system for a leveled heat transfer. To repair frozen coils, the heating and air conditioning must be turned off. As the ice melts off the evaporator coils, your preferred HVAC technician cleans the coil box.

    To minimize chances for freezing and microbiological growth, homeowners should replace the air filter regularly. This prevents limited airflow into the heating and air conditioning system. It also helps clean the air of bacteria and particles, keeping the system clean.

    While the heating and air conditioning may require care, there is so much it can do to elevate the home. With HVAC technology what it is today, homeowners can rely on their central air system for more than just heating and air conditioning.

    Depending on your lifestyle goals and preferences, HVAC contractors outfit your heating and air conditioning system to serve you better.

    Problem Solution

    Just ask what your HVAC contractor can do to make your home better. He or she has creative solutions that will deliver.

    The thermostat plays a key role in heating and air conditioning. It is the only connection homeowners have with their heating and air conditioning systems.

    With proper and full thermostat use, homeowners:

    In addition, homeowners avoid issues like:

    Essentially, the thermostat is the remote that controls heating and air conditioning system. Depending on the thermostat in use, homeowners have the ability to do different things with the air and home.

    There are many different types of thermostats available.

    Programmable thermostats allow homeowners to customize temperature control, timers and schedules. They allow homeowners easy access to different settings and air preferences at the touch of a button.

    Smart thermostats often connect to mobile devices and offer additional metrics to measure home temperature, outdoor temperature, weather forecast, energy spending and more. Typically, smart thermostats are completely digital and feature touchscreens.

    In the HVAC industry, there are so many new devices designed to simplify and maximize heating and air conditioning. Smart learning thermostats are among them. Most notably, Nest Protect is a smart home device that works as a heating and air conditioning thermostat, nightlight and smoke detector.

    The most attractive feature of smart learning thermostats like the Nest Protect is that it programs for you. Learning thermostats record and learn your preferences with heating and air conditioning. With enough data, these thermostats then automate preferences into patterns so you never think twice about it.

    The thermostat is also a thermometer. If properly installed in the home, it accurately reads the temperature in the home. This information is vital. Depending on the change in temperature, the thermostat signals for more heating and air conditioning and frequency of cycles.

    To ensure that your thermostat can properly read the temperature in the home:

    Many homeowners do not realize just how useful the thermostat is at saving money used for heating and air conditioning. Programmable and smart thermostat offers ultra-customization and control over heat cycles, timing, temperature and more.

    By utilizing these features, homeowners reduce their energy bills while enjoying personalized heating and air conditioning.

    Some easy tips to use the thermostat:

    Homeowners who care for their thermostats see a definite difference in their heating and air conditioning. With accurate readings and proper communication channels available, heating and air conditioning is consistent, reliable and accurate.

    What should homeowners do to care for their thermostats from home?

    Maintenance is the simplest and most holistic approach to caring for and preserving heating and air conditioning. In addition, your technician helps you use the thermostat in the most efficient manner for your changing home and furnace.

    Most homeowners forget about their heating and air conditioning until the minute they need it. Typically, in between major seasons, there is little that we do for heating and air conditioning systems.

    As a result, we turn on the air conditioning and heating to find:

    What is it that causes these issues? What common mistakes do homeowners make that jeopardize their heating and air conditioning systems?

    The air filter is used for both heating and air conditioning processes. The primary responsibility of the air filter is to remove particles and germs from indoor air. This keeps home air clean, but it also protects the heating and air conditioning system from harmful buildup.

    All the air in the home must pass through the air filter before moving on to heating and air conditioning. Every time the heating and air conditioning runs a cycle, home air moves through the air filter, which catches particles like:

    When the air filter grows full, less air makes it through the heating and air conditioning system.

    This causes:

    A dirty air filter also means that the internal parts of the heating and air conditioning system are left vulnerable to harmful buildup.

    Buildup may not sound like much trouble, but it is the cause of expensive repairs and permanent damages if left untreated.

    Just how bad can buildup get?

    Any or all of these issues can cause all heating and air conditioning to stop working altogether.

    How can homeowners keep buildup from damaging heating and air conditioning? Choose heating and air conditioning maintenance.

    Heating and air conditioning maintenance saves homeowners thousands of dollars in potential repairs. In fact, heating and air conditioning maintenance prevents 90 percent of all expensive repairs and permanent damages.

    Heating and air conditioning maintenance is encouraged every six months, or twice a year. This gives your HVAC contractors the chance to thoroughly evaluate and care for your heating and air conditioning systems.

    With heating and air conditioning maintenance, homeowners:

    When homeowners skip out on necessary heating and air conditioning repairs, they take huge risks. They risk their time, money and home comfort. In most cases, heating and air conditioning repairs would have been quick and painless. Instead, as problems fester, the damages spread leading to what homeowners wanted to avoid in the first place.

    Homeowners then deal with expensive and time-consuming heating and air conditioning repairs.

    If you suspect a heating and air conditioning repair, call your contractors as soon as you can. Immediate attention will always save time and money. It restores your heating and air conditioning for optimal home comfort.

    What are the heating and air conditioning repairs you absolutely should not ignore?

    If you experience any discomfort with your heating and air conditioning, contact your HVAC contractor for help.

    A healthy heating & air conditioning system hits the all the marks. HVAC technicians can tell with a quick examination if the central air has been cared for or not. To see if your heating & air conditioning needs maintenance service, answer these quick questions.

    The air filter to the heating & air conditioning is absolutely essential. Unfortunately, homeowners are too surprised to learn that it does more than just keep home air clean.

    An air filter is responsible for:

    Healthy heating & air conditioning systems have the air filter changed at least twice a year.

    When the air filter is full and old, it creates many issues. Homeowners have dirty air, higher energy spending and parts of the heating & air conditioning start to fall apart.

    Funny noises from the heating & air conditioning system can signal underlying issues. Screws, nuts and bolts may have detached. Parts may have unraveled or come undone. There are many possibilities, but they all point toward much needed maintenance.

    A healthy heating & air conditioning system runs smoothly without any loud or unusual noises. This is because parts are secured and primed for reliable operation.

    If your heating & air conditioning system produces abnormal noises, consult your technician about making repairs. Ignoring these signs can lead to more serious problems and expensive service costs.

    Take strange noises as a reminder to care of the heating & air conditioning system. Make healthy habits regular habits and enjoy superior heating & air conditioning at home.

    Unusual odors are a strong indication that the heating & air conditioning needs maintenance.

    Odors result from several causes:

    Heating & air conditioning systems working with any of these conditions fight an uphill battle. It is likely that they lack energy efficiency, reliability and even safety. To restore the health of your heating & air conditioning system, rely on the help of your HVAC technicians.

    Service Champions Heating & Air Conditioning is the only Diamond Certified HVAC provider for Orange and Los Angeles Counties. Homeowners trust us for healthy central air systems.

    Service Champions experts are wholly equipped for any heating & air conditioning system. We lead in heating & air conditioning maintenance, repairs and installations.

    Get your heating & air conditioning healthy and have a better home. Select Service Champions for heating & air conditioning maintenance. Complete the form below or speak to our call center representatives to meet your specialist.

    Read the rest here:
    Heating and Air Conditioning Repair - Service Champions

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