Commercial solar installation

Your project is our passion.

About Altenergy, Inc.

Altenergy is a national-reach solar contractor with branches in Virginia, Maryland, Washington DC and Idaho. We design and build commercial-scale solar energy systems by providing our customers with a professional process to find the most cost-effective solution for each circumstance. Our team of electrical and structural engineers, building energy management professionals, energy auditors and other disciplines, provides our customers with quality systems that deliver energy efficiently and reliably. 

With thorough planning, cost analysis and design experience, we will make the process understandable and effective. We understand tax credits, incentives, and renewable energy credits, and will explain them and assist you in utilizing them. Our customers include business owners, architects, general contractors, city and county municipal governments, academic institutions and developers. We have an extensive roster of clients who have discovered our dedication to building quality systems that perform.

We have certified design and install services, and extensive relationships with the largest equipment wholesalers in the country. We are the price and engineering leaders on the East Coast, in system sizes from 2 to 500 kilowatts. We have active partnerships to build even larger commercial systems.

Our Core Values

Team Members

Brendan Welsh

BRENDAN WELSH - NABCEP Certified
Maryland/DC Branch Manager

Brendan graduated from Appalachian State University in 2014 with a degree in Technology and Environmental Design.

Henry Risberg

HENRY RISBERG - NABCEP Certified
Kansas City Branch Manager
Henry has worked for Altenergy in various capacities since 2008, and has been a full time employee since 2014. When Altenergy decided to open a branch in the Washington D.C.
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