Home Battery Backup

A home battery works without solar. Whether it is worth it depends on three value streams, and this guide runs the real numbers.

The best whole-house battery systems compared: Tesla, Enphase, Franklin and more, with honest sizing advice for real homes.

Installed prices, the 30 percent federal tax credit, incentives and a 10-year cost comparison against a standby generator.

Five home batteries that compete with the Powerwall 3 on capacity, expandability and price, and an honest look at when Tesla is still the right pick.

Virtual power plant programs pay home battery owners hundreds of dollars a year. How they work, real earnings, and how to check eligibility.