Massachusetts Clean Energy Center - Boston, Massachusetts

Solar Design Associates - Harvard, Massachusetts

Concord Municipal Light Plant - Concord, Massachusetts

Hudson Light & Power Department - Hudson, Massachusetts

Sistine Solar - Wakefield, Massachusetts

Essex Power Services Inc - Boston, Massachusetts

MacFarlane Energy - Dedham, Massachusetts

The Ryan Company, Inc. - Norton, Massachusetts

Modern Energy - Worcester, Massachusetts

HAREI - Mont Vernon, New Hampshire