This is one area where going green and saving money diverge. The cheapest renewable tariffs tend to cost more than the cheapest standard tariffs, so it really is a question of your personal politics. However, if you can afford to go renewable, then it's a help to the environment, and all the main comparison services allow you to compare renewable tariffs.
However, the energy storage sector will continue its strong showing from 2016, with commissioned capacity set to exceed 1GW for the first time, Liebreich and McCrone say. “We predict a doubling of new capacity from this year’s 700MW to 1.5GW, almost all of it lithium-ion batteries. We are going to see a further reduction in battery prices of at least 15% this year, after a 70% reduction in the past five years.”
Twenty-nine states have deregulated electricity, natural gas or both. That allows you to shop for the supply portion of your bill from alternative providers who may offer rates lower than the default supplier – usually a utility. Delivery services and billing will remain the responsibility of the local utility as they own the power lines and wires that keep the lights on.