VoltRebates For installers

How much does a home battery cost in Washington after rebates?

The most common job, a tesla Powerwall 3 (13.5 kWh), installed, costs $14,500 before rebates. Most jobs cost between $11,500 and $18,500. With the biggest open rebate ($3,000), you could pay about $11,500.

How much does a home battery cost?

ProjectLowTypicalHigh
Tesla Powerwall 3 (13.5 kWh), installed$11,500$14,500$18,500
Enphase IQ Battery 10C (10 kWh), installed$10,500$13,000$16,000
Home battery, generic installed cost per kWh$900$1,100$1,600

What the typical price covers: one Powerwall 3 (13.5 kWh, integrated hybrid inverter), Backup Gateway/backup switch, wiring, mounting, permit, interconnection paperwork, commissioning. Expansion units extra (~$6,000 each). Excludes main-panel or service upgrade (+$3,000-$5,000 where needed) and solar.

These ranges come from Northeast and national installer data. Prices in Washington can be lower or higher, so get two or three quotes.

Is there a rebate for a home battery in Washington?

Yes. We track 3 home battery programs taking applications in Washington. The largest is $3,000 from Pacific Power (PacifiCorp).

Which utilities pay home battery rebates?

Most rebates depend on who supplies your power or gas.

UtilityProgramsLargest rebate
Puget Sound Energy (electric)2$10,000
Pacific Power (PacifiCorp)1$3,000

How much will I pay after rebates?

Start with the typical price, $14,500. Take off the largest rebate you qualify for. With $3,000 from Pacific Power (PacifiCorp), that is about $11,500.

Rebates have rules: approved equipment, an approved contractor, and sometimes income limits. Some can be combined, some can't. Check each program before you sign a contract.

Use the rebate calculator to see what applies at your zip code.

Is there a federal tax credit?

No. The federal credits for heat pumps and batteries (25C and 25D) ended for installs after December 31, 2025.

How do I find a licensed installer in Washington?

We list 5,518 Washington contractors whose state license covers home battery work. Each one shows its license, and many show a phone number or website.

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