Size My Backup

Power station, generator or home battery: which one?

Most people ask "what size?" before "what type?". Answer these questions and see which type fits your situation, then size it with the matching tool. No prices, and the answer never depends on who pays us a commission.

The short version

This is a decision aid, not a design. Local codes and utility rules vary, and electrical work needs a licensed electrician and a permit where required. We have not hands-on tested any product.

Calculator · Generator size · Home battery size · 10-year cost compare · All tools