Choose-electric-supplier-ma, choice — electric supply is associated with the production and purchase of the electricity we use. competitive suppliers offer consumers a variety of electric supply products that vary according to price, renewable energy, and energy technology services.. Residents and businesses in massachusetts have the power to choose their electricity provider. the state is one of a few states in the u.s. that benefit from a deregulated energy market, allowing consumers to find better electricity rates and plans., the electricity market can feel overwhelming. we can help you navigate it. here, you can learn more about the electric market, learn about and purchase a competitive supply product on energy switch ma, view basic service prices, view the municipalities that participate in municipal aggregation, and file a complaint against an electricity supplier or broker.