Tesla · Updated August 2026
Powerwall 3: price, specs & release date
Powerwall 3, released 2023. Every price and spec below is linked to its source and dated — no guesses.
Source: thegreenwatt.com verified ✓ corroborated verify in ledger
The Powerwall 3 is listed at $9200 on thegreenwatt.com as of 2026-08-01, the cheapest home battery backup (median $13298.45); other retailers may be lower. It earns a Platinum Deskmark — 79/100 pay-blind standing, #1 of 12 in class.
Verified Aug 1, 2026 · figures linked to their source in the table below
Is the Powerwall 3 a good buy?
At $9200, the Powerwall 3 is the cheapest of the 3 home battery backup we track, where the median is $13298.45. On the spec sheet, its round trip efficiency of 97.5 is the highest of the 10, its warranty years of 10 is the lowest of the 12, and its usable capacity kwh of 13.5 is above the median of the 13.
Specifications
| Price (US) | $9200 Tesla sells Powerwall only through a quote/app-based ordering flow and does not publish a price list on tesla.com (its official datasheet PDF also returns HTTP 403 to automated fetch). $9,200 is the hardware-only base price consistently and independently cited across multiple solar-industry reviewers (EnergySage, SmartEnergyUSA, TeslaRefer) for a single unit. Fully installed cost typically runs $11,500-$16,600 depending on region/installer per the same sources. No 30% federal ITC is available for systems installed in 2026 (it expired December 31, 2025). |
|---|---|
| Brand | Tesla |
| Released | 2023 |
| Usable capacity kwh | 13.5 |
| Continuous power (kW) | 11.5 |
| Peak power (kW) | 22 |
| Battery chemistry | NMC |
| Round trip efficiency | 97.5 |
| Scalable stackable | Yes |
| Warranty years | 10 |
| Backup transfer time ms | — |
| Weight (lb) | 287 |
Source: thegreenwatt.com (verified 2026-08-01) · corroborated by energysage.com. Tesla's official Powerwall-3-Datasheet.pdf (energylibrary.tesla.com) blocks automated fetch (403), so specs were taken from a secondary source that reproduces the datasheet's figures in full: 13.5 kWh usable, 11.5 kW continuous / 22 kW peak (10s) off-grid, 97.5% round-trip efficiency, NMC chemistry, 287 lb (130 kg), 10-year warranty (70% capacity retention, unlimited cycles), stackable up to 4 units (54 kWh). EnergySage's independent review corroborates the 13.5 kWh / 11.5 kW figures and gives installed-cost data ($998/kWh average, $13,473 typical installed). No confirmed backup-transfer-time figure in milliseconds was found from a citable source, so it is left null rather than repeating Tesla's unquantified 'seamless' marketing claim. Image: Wikimedia Commons CC0 photo explicitly captioned as two Powerwall 3 units installed indoors with a disconnect box, verified by direct inspection.
Is the Powerwall 3 worth it vs cheaper home battery backup?
Powerwall 3 against its closest cheaper and pricier home battery backup on the specs that matter — every value sourced. See all 3 ranked
| Product | Price | Usable capacity kwh | Continuous power (kW) | Peak power (kW) | Battery chemistry | Round trip efficiency |
|---|---|---|---|---|---|---|
| Powerwall 3 this | $9200 | 13.5 | 11.5 | 22 | NMC | 97.5 |
| sonnenCore+ 10 | $13298.45 | 10 | 4.8 | 8.64 | LFP | 85 |
Frequently asked questions
How much does the Powerwall 3 cost?
The Powerwall 3 has a US price of $9200 (Tesla sells Powerwall only through a quote/app-based ordering flow and does not publish a price list on tesla.com (its official datasheet PDF also returns HTTP 403 to automated fetch). $9,200 is the hardware-only base price consistently and independently cited across multiple solar-industry reviewers (EnergySage, SmartEnergyUSA, TeslaRefer) for a single unit. Fully installed cost typically runs $11,500-$16,600 depending on region/installer per the same sources. No 30% federal ITC is available for systems installed in 2026 (it expired December 31, 2025).), as of 2026-08-01.
How does the Powerwall 3 compare on price?
At $9200, the Powerwall 3 is the cheapest of the 3 home battery backup we track, where the median is $13298.45.
When was the Powerwall 3 released?
The Powerwall 3 was released 2023.
What are the Powerwall 3's key specs?
Powerwall 3 (Tesla): usable capacity kwh 13.5, continuous power kw 11.5, peak power kw 22, battery chemistry NMC, round trip efficiency 97.5. Full sourced spec sheet verified 2026-08-01.
Price of record: $9200 at thegreenwatt.com, 2026-08-01. Other retailers may be lower — check the current price:
See Powerwall 3 on Amazon As an Amazon Associate we earn from qualifying purchases.All home battery backup ranked · Open data & methodology · Queryable via MCP
Compare with
Head-to-head
Step up
- sonnenCore+ 10 $13298.45
- Power Storage 20 $19500