Massachusetts home-electrification pilot could offer a national model

A first-of-its-kind pilot to electrify homes on Cape Cod and Martha’s Vineyard is set to finish construction in the coming weeks — and it could offer a blueprint for decarbonizing low- and moderate-income households in Massachusetts and beyond.

The Cape and Vineyard Electrification Offering is designed to be a turnkey program that makes it financially feasible and logistically approachable for households of all income levels to adopt solar panels, heat pumps, and batteries, and to realize the amplified benefits of using the resources together. These technologies slash emissions, reduce utility bills, and increase a home’s resilience during power outages, but are often only adopted by wealthier households due to their upfront cost.

“We are going to be advancing this as a model that should be emulated by other states across the country that are trying to achieve decarbonization goals,” said Todd Olinsky-Paul, senior project director for the Clean Energy Group, a nonprofit that produced a new report about the program.

In total, the program is providing free or heavily subsidized solar panels and heat pumps to 55 participating households, 12 of which also received batteries at no cost. Work should be completed on the final participating home this month.

“This is the first and only instance where solar and battery storage are being presented in combination with electrification and traditional efficiency,” Olinsky-Paul said. ​“Instead of having several siloed programs, it’s all being presented to the customer in a package, which makes everything work together better.”

It’s a strategy that program planners hope can help address the disproportionate energy burden felt by lower-income residents of the region, where households making less than one-third of the area median income spent an average of 27% of their income on energy as of 2023, according to data from the U.S. Department of Energy. (The updated figure is unavailable because the federal tool that provided this data is no longer live.)

The initiative is a project of the Cape Light Compact, a unique regional organization that negotiates electric supply prices and administers energy-efficiency programming for the 21 towns on Cape Cod and Martha’s Vineyard. The compact first proposed the pilot in 2018, but regulators rejected the idea. The organization submitted a revised version in 2020 and 2021, but it wasn’t until 2023 that the state finally gave the program the green light.

An energy-efficiency contractor partners with each program participant to assess their home, then coordinates the necessary work, including any preparations that need to be completed before solar panels, heat pumps, or batteries can be put in. The batteries installed through the program are enrolled in ConnectedSolutions, a state program that pays battery owners who send power to the grid when needed. Because the pilot footed the bill for the batteries, these payments will go to the Cape Light Compact, rather than residents, to help defray the cost of the program.