Is your Powerwall quote fair?
Use the installed cost per kWh to judge a home battery quote. That number lets you compare a Powerwall with other brands.
How to check your quote
- Divide the total price by usable kWh. Our math: a $15,647 quote ÷ 13.5 kWh ≈ $1,159/kWh, at the top of EnergySage's range.
- Ask whether a panel upgrade, gateway, or trenching is included or extra.
- Ask whether it backs up the whole home or only essential loads.
- Don't count the 30% federal credit. The IRS says installs completed after 12/31/2025 don't qualify. Details →
Check for state or utility programs: rebates by state →
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FAQ
How much does a Powerwall cost installed?
EnergySage reports a typical installed cost of about $15,647 for a battery of about 13.5 kWh, or $1,130–$1,159 per kWh (checked 2026-10-25). Your price depends on your home and installer.
Can I still get the 30% tax credit on a Powerwall?
No. The IRS says the Section 25D credit does not apply to installations completed after 12/31/2025.
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