Solar power in Massachusetts
Solar power in Massachusetts has been increasing rapidly, due to a 30% tax grant for installations begun before December 31, 2011, and the sale of SRECs for $0.30/kWh, which allow payback for the system within 5 or 6 years, and generating an income for the rest of the life of the system. For systems installed after December 31, 2011, and before December 31, 2016, the 30% tax grant becomes a 30% tax credit. There has been an appeal to the Congress to extend the 1603 program, the grant program, for an additional year.
Net metering is available with no aggregate limit for systems less than 10 kW, or three phase connected systems less than 25 kW. Larger systems are limited to 3% of total peak load. Approximately 40 municipalities are exempt from net metering. Of these, most choose not to offer it.
New England's largest privately owned solar array is the 4.5 MW Westford Solar Park, completed in April 2012. Almost every town and city in Massachusetts has a solar installation within its boundaries. The town of Harvard, Massachusetts has the most solar installations with 75 planned, of which 21 have been installed. Holyoke is home to two arrays which total 4.5 MW which were completed on December 20, 2011. A 1.8 MW solar farm in Pittsfield was completed in 2010. A 5.75 MW solar park in Canton was completed in 2012. Two 6 MW solar parks are being built, one in Berkley, and the other in Carver. As of August 2012, a total of 129 MW has been installed in the state.
State officials had set a target of installing 250 MW of solar PV statewide by 2017 and in May 2013 upped the target to 1,600 MW by 2020 as the 250 MW goal had been met four years ahead of schedule.
Massachusetts electricity consumption in 2010 was 57,123 million kWh. The state is a net importer of electricity, having only generated 42,805 million kWh. Massachusetts has the potential for generating 799,344 million kWh/year from 184,076 MW of offshore wind farms and 82,205 million kWh from 51,568 MW of photovoltaic solar farms, and 26,000 million kWh (47% of consumption) from 22,500 MW of rooftop photovoltaics.
In 2016, the net metering limits were reached in all utility areas, causing over 240 MW in over 550 projects to be delayed. On Monday, April 11, 2016 Massachusetts governor Charlie Baker signed a bill increasing net metering cap limits by three percent and reducing the value of net metering credits paid. 
|Massachusetts Grid-Connected PV Capacity (MW)|
- Solar house
- 1603 Treasury Program
- Massachusetts Announces Change to SREC Program
- Energy Tax Breaks Proposed, Despite Waning Support for Subsidies
- Overview and Status Update of the 1603 Program
- Massachusetts Net Metering
- Solar-panel grant keeps Beverly High going green
- Harvard is Hot on Solar Panels, But Why Aren’t Other Boston Universities as Charged Up?
- Solar Energy & Weather Data
- Solar park set to warm region
- Governor Patrick Flips The Switch at Westford Solar Park
- Solararize Harvard
- Holyoke solar power project, among largest in New England, starts up
- Largest solar power plant in New England about to open
- Old Massachusetts Landfill Will be Home to New England's Largest Solar Array
- Canton dump may soon be a solar powerhouse
- Solar power soars to new heights in Berkley
- Massachusetts Clean Energy Installations
- FOX 6 Springfield (2013-05-02). "Massachusetts Sets New Goal for Solar Power". WGGB-DT2. Retrieved 2013-05-02.
- Solar Insolation Levels In North America
- Installed Solar Capacity in Massachusetts
- EIA (2012-01-30). "State Electricity Profiles". United States Department of Energy. Retrieved 2012-08-17.
- Renewable Energy Technical Potential
- Rooftop Solar Photovoltaic Technical Potential in the United States: A Detailed Assessment
- Stalled Solar Projects in Massachusetts
- Shallenberger (April 2016). "Massachusetts Gov. Baker signs bill lifting solar cap, lowering net metering rates". Utility Drive. Retrieved 2017-03-24.
- Sherwood, Larry (July 2014). "U.S. Solar Market Trends 2013" (PDF). Interstate Renewable Energy Council (IREC). Retrieved 2014-07-16.
- Sherwood, Larry (July 2013). "U.S. Solar Market Trends 2012" (PDF). Interstate Renewable Energy Council (IREC). p. 16. Retrieved 2013-10-11.
- Sherwood, Larry (June 2011). "U.S. Solar Market Trends 2010" (PDF). Interstate Renewable Energy Council (IREC). Retrieved 2011-06-29.
- Sherwood, Larry (July 2010). "U.S. Solar Market Trends 2009" (PDF). Interstate Renewable Energy Council (IREC). Retrieved 2010-07-28.
- Sherwood, Larry (July 2009). "U.S. Solar Market Trends 2008" (PDF). Interstate Renewable Energy Council (IREC). p. 16. Retrieved 2010-07-24.
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