Sunrun Solar is the largest residential solar, storage and energy services company in the U.S. With Sunrun's home solar and Brightbox battery service in Springfield, MA you have the freedom to choose affordable, reliable, and clean power when you need it. As a leading solar company in Springfield, we make the process stress-free by providing the support and resources you need, each step of the way. With all of our plans, you'll get a unique and customized solar energy system and a team of solar experts to walk you through the process. The only difference is how you decide to go solar. Take control over rising energy costs.