Boston doesn’t have a huge amount of renewable energy in our mix, sadly. Most of New England is fossil fuels. More renewables would make it easier to keep prices low.
But how does the narrative of “this is so impossibly cheaper and better” square with “we can’t build enough here so it’s 30% more expensive”. Either the region simply isn’t cost effective for solar / wind in which case we need nuclear to have any hope of clean energy, or renewables aren’t actually cheaper. If it was actually cheaper then it would just happen automatically.