How much does a home battery cost?

One of the most popular home battery options is the Tesla Powerwall, a sleek lithium-ion battery that holds 13.5 kilowatt-hours (kWh) of energy. The Tesla Powerwall 3 costs about $15,400 before incentives and taxes are considered. At $1,140 per kWh of storage, the Powerwall is one of the most affordable home battery solutions available.

What are the best battery storage options for your home?

Battery storage is becoming more popular as homeowners look for ways to keep their lights on during power outages and reduce reliance on their utility company. One of the most popular home battery options is the Tesla Powerwall, a sleek lithium-ion battery that holds 13.5 kilowatt-hours (kWh) of energy.

How long can a solar battery power a house?

A 13 kWh solar battery can power a house for 4 to 12 hours, depending on the number of lights and appliances running. An average family of four will require a minimum of 25 kWh to power LED lights, major appliances, and air conditioning or a heat pump for one day.

Should you install a home battery system?

One of the biggest benefits of installing a home battery system is its ability to keep your home running during a power outage, something solar panels can’t offer on their own. In fact, backup power is the primary reason homeowners choose to install batteries, according to our 2025 Solar Industry Survey.

How much does a solar roof cost?

A solar roof costs $29,400 to $56,000 installed after the tax credit. Most solar roof installations include one battery. A Tesla solar roof costs $42,000 to $105,000 installed after the tax credit and includes one or more Tesla Powerwalls, depending on the system size.