Because the old electricity grid is getting older and more people are using electric cars and heat pumps, it's putting a lot of pressure on the system. This makes the cost of using fossil fuels, like coal and gas, go up. That's where programs like Mass Save and MA Smart come in. To foster the development of renewable energy and make the transition for homeowners easy! By sticking to traditional power you are agreeing to pay high and unpredictable rate increases.