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Location Segment Size Installed Installer / developer Northampton, MA Residential 5 kW Aug 18, 2017 Heliovaasthird-party owned View → Hampden, MA Residential 574.9 kW Mar 30, 2017 Heliovaasthird-party owned View →
Compiled from LBNL Tracking the Sun, state incentive programs and permit data. Coverage varies by jurisdiction — see each state page for completeness notes.
© 2026 Hyder Media · PanelCensus — The public census of America's solar installations & installers. Built from public records: LBNL Tracking the Sun, city permits, state programs and USGS/EIA utility-scale data. Methodology & data · Data coverage by state