Solar required on new commercial buildings in Massachusetts town

Watertown, Massachusetts now requires solar power with all new commercial construction and retrofits of structures greater than 10,000 sq feet – as well all structures that include ten or more residential units. Solar power as a required part of new construction is starting to catch hold. Last year, we saw South Miami mandate 2.75 kW of solar for every 1000 square feet on new homes. Prior to that, it’d been a few cities within California requiring solar with new construction. Now, of course, we live in a time where the whole of the State of California has set a requirement for all new low-rise residential construction to have solar in 2020, and there is much speculation on what that might do to lower installation costs.