From CleanEnergyAuthority.com, our italics:
As early as next week, Massachusetts residents will have another reason to think about installing a solar hot water heater on their home—more incentives. The Massachusetts Clean Energy Center (MassCEC) will launch the rebate program next week, which along with other incentives can halve the cost of installing a solar hot water system.
The rebate program is only open to residents whose electric suppliers participate in MassCEC's Renewable Energy Trust Fund, said MassCEC spokesperson Kate Plourd.
Visit the Commonwealth Solar Hot Water program at MassCEC.com