Home Battery Cost Calculator
Estimate what a home battery backup costs to install — from usable capacity and the installed price per kWh, plus the gateway, electrical, and permit work. See the cost per kWh, how many Powerwall-class units it works out to, and the price net of any rebate you qualify for.
Battery spec in Ah? Convert to kWh
A typical home battery (Powerwall-class) is about 13.5 kWh and runs roughly $1,000–$1,400 per kWh installed. The cost per kWh and install adder are editable — match a real quote. Enter the rebate you actually qualify for; incentives change.
Installed cost
$18,700
≈ $1,385/kWh · 1 unit of 13.5 kWh
- Battery equipment
- $16,200
- Install, electrical, permit
- $2,500
A planning estimate, not a quote. Real pricing depends on the battery brand, whether you need a backup gateway or panel work, and your installer. Pairing a battery with solar can change which incentives apply — get itemized quotes.
Frequently asked questions
Ask AI about this
Open an AI assistant with a question grounded in this page.
Related guides
Related calculators
Solar Loan Calculator
Estimate solar loan payments and the true cost of financing — including the dealer fee low-APR loans add — and check if the payment beats the electric bill it offsets.
Open calculatorSolar Panel Payback Calculator
Estimate how many years a solar system takes to pay for itself from the electricity it offsets — and its lifetime savings.
Open calculatorHow Many Solar Panels Do I Need? Calculator
Find how many solar panels and what system size you need to cover your electricity use — from your annual kWh or your monthly bill.
Open calculatorSolar Panel Output Calculator
Estimate how much electricity a solar system produces per day, month, and year — with seasonal range and lifetime output after degradation.
Open calculatorSources & standards
This tool's methodology and data follow US standards and authoritative public datasets: