Battery storage

Energy independence, day and night.

A home battery stores the surplus electricity your solar panels generate so you can use it when the sun isn't shining — or when the grid goes down.

Use cases

Why homeowners add battery storage

Backup power

Keep your lights, refrigerator, and essential circuits running during grid outages — automatically.

Time-of-use optimization

Store cheap solar during the day, discharge when utility rates are highest. Cuts time-of-use bills significantly.

Self-consumption

In states with reduced net metering, a battery lets you use more of your own solar instead of selling it cheap.

Energy independence

Reduce reliance on utility grid entirely. Some homeowners with battery + solar approach near-zero grid consumption.

What to expect

Do you need a battery?

Most homeowners don't need a battery to benefit from solar. If your utility offers full retail net metering, your grid connection works like a free, unlimited battery — you export surplus during the day and draw it back at night at the same rate.

Batteries make the most sense when: your utility offers below-retail export rates, you experience frequent outages, or you're on a time-of-use tariff with large peak/off-peak rate spreads.

Ask your matched installer about battery options

Home battery specs

Typical capacity10–20 kWh

Usable capacity80–90% of rated

Backup circuitsWhole home or critical loads

Warranty10 years (most manufacturers)

Expected lifespan15–20 years

Federal tax creditVaries — ask installer