Massachusetts-based EnergySage announced the soft launch of its community solar marketplace earlier this month.
The initiative is among the most aggressive of existing or proposed strategies to reduce energy consumption in buildings, which are responsible for 70% of the city’s carbon output.
As the program ends, private solar lending will continue but low-income homeowners may be left behind.
Utilities could prove useful partners in the projects, which involve drilling, trenching and laying pipe to bring underground heat into buildings.
The Building Energy Retrofit Resource Hub is a partnership with utility Eversource designed to help further reduce the city’s carbon emissions from buildings.