The residential solar market has heated up in the United States during the past few years. Although its fortunes have fluctuated, it has seen dramatic improvements. The same cannot be said for the low-income solar market, which is just beginning to thaw. According to the Low-Income Solar Policy Guide developed by the nonprofits Grid Alternatives, Center for Social Inclusion, and Vote Solar, there is a key set of structures that needs to be put in place at the government level to set the ground rules for a profitable market. The frameworks depend on the state policy environment.