About SunFusion Energy Systems

Best Energy Storage System in the US

SunFusion Energy Systems has all of our competitors beat! Just one of SunFusion Energy Systems cabinets can hold 24kW of continuous power and peak at 40kW, ensuring you are able to keep your entire home powered through blackouts or planned outages from ...

Our Services

SunFusion Energy Systems Inc. is a manufacturer and integrator of the most flexible energy storage system on the market. We believe that renewable energy shouldn't have to rely on utility companies. That’s why we developed our Uninterrupted Energy Supply ...


Free consultation
Built in San Diego, CA.
NO Magnesium or Cobalt
Ultra-Safe Cell Technology
25-Year Cell Warranty
8 week build time to ship on custom systems
Parking available