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About Us

Altenergy Incorporated
1132 E. Market Street Bay 5
Charlottesville, VA 22903
Phone: 434-293-3763


Altenergy Incorporated is located in Charlottesville, Virginia and has become the predominant resource for solar and other efficient energy systems design and installation. We are five employees strong and growing, and have earned the reputation as a company that is dedicated to building quality systems that perform. Mathew Dunay, Project Manager, and his crew have installed over twenty five systems in and around Charlottesville, working with General Contractors Abrahamse and Company, Hazard and Associates, Artisan Construction, Hale and White, Architects Hays and Ewing, Nelson Byrd Associates, Wolf Ackerman Design, UVA School of Architecture, MEP experts Jeff Saul and Frank Carrucio, as well as individual businesses and many homeowners. The people we work for demand quality, and so do we.

Solar Space Heating Diagram

We invite you to call and find out if a solar hot water system can make sense for you and your family. We use the phrase, "makes sense" often, because we want to make sure that your investments give you the return you deserve and expect. In Virginia, we find that almost anyone with consistent hot water use has an outstanding opportunity to reduce the traditional energy (gas or electricity) they use with solar energy, saving money each month as well as reducing carbon dioxide and other pollutants and emissions. We also build comprehensive systems that can be used for space heat, electricity generation, and are involved in further development of providing air conditioning options for solar thermal (hot water) systems. We often use evacuated tube technology from Apricus. We have a wide variety of equipment options, designing systems that will work, and look, best for you. We often have good opportunities to replace inefficient or worn out hot water plants during our installations, further reducing energy demand while insuring that you always have hot water available. We are insured, and we work closely with inspectors to verify code compliance.

The future of energy supply in our country will include many different sources, with solar, wind and hydro as critical pieces of the puzzle. We are always looking for ways to show students of all ages opportunities to learn about alternative energy and efficiency. At Altenergy Incorporated, we believe that imported energy sources strain our ability to retain our economic, environmental and political independence. Solar and wind energy improve our existing energy infrastructures, and most importantly, provide good economic returns. Paul Risberg, CEO, has a vision for Altenergy that taps into the rapid evolution of renewable energy resources, but that always puts reliability at the top of the list. We focus on economic return, and on finding opportunities to show you how to put the best energy saving technologies to work for you, today!

A typical solar hot water system that uses your existing hot water heater as backup costs between 6 and 8 thousand dollars, and has an 8-10 year payback period for a family of four. Federal Tax credits can lower that cost by up to $2000 for individual homeowners, and by up to 30% of total costs for businesses. We expect the systems to last at least 20 years, so the return on investment is very good, especially considering the potential for rate increases for traditional energy in the future. Modern, robust systems often increase the value of the real estate they reside on by the cost of the system itself, providing excellent return on investment. By integrating systems into new construction, even better return numbers can be generated, especially when included in mortgage costs.

We want to be a part of your next project, so call us to find out if you can harvest some solar energy. It's yours for the taking!

Paul Risberg
President, Altenergy Incorporated
Charlottesville, Virginia



1132 East Market St. Bay 5 | Charlottesville, Virginia | 434.293.3763