Generator vs battery

Generators have historically been the go-to option for home backup, but batteries are a popular alternative – especially if you’re also considering a solar panel system.

Generator / battery comparison

Generator or battery – which is right for you?

Common questions

Which is more expensive – a generator or a battery?

Battery backups typically have higher upfront costs; most people pay between $10,000 to $20,000 for a home battery system, while generators typically cost between $3,000 to $5,000. That said, fuel and maintenance costs for generators can add up over time, making batteries a cost competitive option (especially if you charge your battery with a home solar panel system).

Which has a longer run time – batteries or generators?

Generators. If you just want to keep the lights on in a power outage, most batteries will do the job. Many homeowners who choose batteries for backup power are comfortable knowing that “critical loads” like power outlets, lights, and small appliances will be powered in the event of a power outage.

That said, if you install a conventional generator, you won’t have to worry about running out of backup power, so long as you have adequate fuel onsite.

Can I get both technologies?

Yes! Generac–one of the biggest names in home backup solutions–recently released a generator that’s designed specifically for recharging home batteries.