MassCEC – Commonwealth Solar II Rebates

MassCEC – Commonwealth Solar II Rebates;
State: Massachusetts

  • Incentive Type: State Rebate Program
  • Eligible Renewable/Other Technologies: Photovoltaics
  • Applicable Sectors:Commercial, Industrial, Residential, Nonprofit, Schools, Local Government, State Government, Fed. Government, Multi-Family Residential, Low-Income Residential, Agricultural, Institutional
  • Amount: $1.00 -2.10/W DC (varies by rebate “adders”)
  • Maximum Incenative:Residential: $10500; Commercial: $5.500(per host customer), up to $250,000 per parent company)
  • Eligible System Size: 1 KW(minimum) up to 10 KW(DC)
  • Equipment Requirements: All equipment must be new, UL-listed and compliant with IEEE standards. Modules must be certified to UL 1703 standards. Inverters must be certified to IEEE 929 and UL 1741 standards. All modules, inverters, and production meters must be on the California Energy Commission’s list of eligible equipment. Automated reporting encouraged for systems over 10 kW. Minimum manufacturer warranties required: 5 years product and 20 years performance for modules; 10 years for inverters; 2 years for revenue grade production meters; and 5 years for mounting equipment.
  • Installation Requirements: Projects must be installed in compliance with all local, state, and/or federal building and electrical laws, codes and practices. Electrical work must be performed by a Massachusetts licensed electrician. NABCEP certification recommended. Projects must have a minimum 5-year warranty provided by the installer against defective workmanship, project or component breakdown, or degradation in electrical output of more than 15% from original rated electrical output during the warranty period. Projects must be grid-tied and “behind the meter.”*
  • Ownership of Renewable Energy Credits: Remains with project owner
  • Funding Source: Massuchusetts Renewable Energy Trust
  • Program Budget: $4 million/year ($1 million/quarter)
  • Program Expiration Date: 12/31/2010
  • Web Site: *According to the program manual, stationary off-grid PV systems that are permanently located on the same contiguous property of an eligible non-residential grid-connected applicant and facility may be eligible for a rebate of up to 5 kW (DC) per project


Commonwealth Solar II
Massachusetts Clean Energy Center
55 Summer Street, 9th Floor
Boston, MA 02110
Web Site: