The Massachusetts Department of Energy Utilities has approved 800 MW of offshore wind contracts for Vineyard Wind , which average $ 0.089 / kWh . The company will also pay $ 250 million towards the development of battery storage for low - income customers as part of the US state ’s target to have 800 MWh of energy storage by 2020 . A second request for proposals for 800 MW of wind power has already been launched by National Grid , Eversource and Unitil . Those proposals may also have to include an energy storage element .
The Massachusetts Department of Public Utilities has approved 800 MW of offshore wind contracts for Vineyard Wind, which average $0.089/kWh. The company will also pay $15m towards the integration of battery storage for low-income customers as part of the US state’s target to have 200 MWh of energy storage by 2020. A second request for proposals for 800 MW of wind power has already been launched by National Grid, Eversource and Unitil. Those developments may also have to include an energy storage element.