Integrated Solar Applications
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Integrated Solar Applications
ISA was founded in 1975 as Solar Applications Company by Alain Ratheau, an electrical and mechanical engineer, originally from Paris. Alain designed and installed solar thermal and photovoltaic systems. Alain continues to work with ISA as a lead engineer and system designer. Andy received a BS in Mechanical Engineering from Worcester Polytechnic Institute with Distinction and an MBA from the University of North Carolina.

Andy worked for IBM Corporation as a manufacturing engineer, Related Companies as a mortgage broker and real estate development project manager, and BankNorth as a real estate workout specialist. He owned a real estate development company specializing in energy efficient housing.
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Solar photovoltaic (PV) technology converts the sun's energy into electricity. Solar modules or "panels" can be mounted on a roof, the side of a building, or on a ground rack. Geothermal systems can provide heating in the winter and cooling in the summer simply by turning a reversing valve. Heat Pump Technology is the same as your refrigerator but in reverse.
Life on earth has arrived at a critical point where the quality of life for humans will decline unless there is prompt and significant intervention. Corporations shoulder much of the blame for this environmental collapse given their constant pursuit of growth in the interest of short term profits. Continued constant rates of growth are now unsustainable and have devastating consequences for our children, grandchildren and all future generations.
Cathy was a stay at home mom for 20 years raising her family, after her youngest son was diagnosed with autism she got an interest in Nutrition and Healing the body naturally and it landed her a job in a health food store where she worked In Tennessee for 3 1/2 years learning, and helping people. Helping people heal and feel better was her favorite.
A team of conscientious stewards of the earth that are passionate about renewable energy. ISA works hard to maintain a healthy community-minded business with ethical and charitable social principles. We care about people and the environment and strive to reflect that in every aspect of the way we do business.
Solar photovoltaic (PV) technology converts the sun's energy into electricity. Solar modules or "panels" can be mounted on a roof, the side of a building, or on a ground rack. The most popular systems connect to your electric meter through what is known as "net metering." Net metering negates the need for battery storage and uses the utility grid to sell power back to your electric company.
Reviews (3)
Ian Diamondstone
Ian Diamondstone
Nov 13, 2021
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Wow! After they installed my mini split, the owner came back to do a inspection and decided they were off by 2 inches and they spent an entire extra day reinstalling and making 100% repairs. It’s the sort of integrity that I appreciate. I was skeptical but I am heating and cooling a very large space without any issues and not burning a bit of fossil fuel. Can’t beat it!
Ed C.
Ed C.
Sep 05, 2021
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Integrated Solar did a great job with our mini-split heat pump design and installation. The crew was respectful and listened to our questions and concerns. I feel like we received a good value for our money with a well designed and installed heating/cooling system which will meet our needs for many years. I recommend ISA for your heat pump system!
Steve Crofter
Steve Crofter
Aug 08, 2020
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As a couple doing a gut rehab of an old house, we felt competent to be our own contractor for much of the demolition and renovation work, but when it came to designing and installing an energy efficient heating system, we needed professional help. Integrated Solar Applications provided an exceptional level of knowledge, service, and support throughout the process.
We especially appreciated that they listened to what we wanted, answered all our questions and educated us to the extent we wanted, and did a quality job of installing a great heat pump system. The entire Integrated Solar Applications