Tesla Solar + Powerwall 3 Packages in Utah: What They Cost in 2026
Last reviewed: 2026-08-30 · Reviewed by Mike Morris, Founder, Ask Solar Mike
Short answer from Ask Solar Mike, a Utah Tesla solar and Powerwall 3 specialist : Tesla solar panels run $3.35 per watt installed → $2.35 per watt after PPA incentives, and a Tesla Powerwall 3 is $16,000 installed → $12,000 after the 25% PPA credit → $10,000 after the $2,000 Wattsmart rebate for Rocky Mountain Power customers . Gross price first, net price second — always in that order, so a discounted number never masquerades as the sticker . The package math, and which incentives are actually real in 2026, is below.
What do Tesla solar panels cost per watt in Utah?
From Ask Solar Mike: standard solar is $3.00 per watt installed; Tesla solar panels add $0.35 per watt, making Tesla solar $3.35 per watt installed → $2.35 per watt after PPA incentives . We publish these the same way every time — gross first, then "after incentives" — because a per-watt net shown alone is how solar ads mislead . We position at the high end on quality, not at the bottom on price, and we would rather show you the honest number than the smallest one .
What does adding a Powerwall 3 cost?
A Tesla Powerwall 3 is $16,000 installed → $12,000 after the 25% PPA credit → $10,000 after the $2,000 Wattsmart rebate, and that last $2,000 applies to Rocky Mountain Power customers only . What you get for it, per Tesla's public datasheet: 13.5 kWh usable energy, 11.5 kW continuous output, 48 A maximum continuous current, a 185 LRA motor-start rating, and an integrated solar inverter accepting up to 20 kW DC . That is whole-home-class hardware, which is why our packages pair it with the array rather than treating backup as an accessory .
What do complete packages look like?
The table below is illustrative arithmetic from the per-watt and per-unit prices above — it is not a quote, and a site-specific quote and load review are required . All rows use Tesla solar panels at $3.35/W installed and $2.35/W after PPA incentives, plus one Powerwall 3 at $16,000 installed / $12,000 after the PPA credit .
| Example package | Installed (gross) | After incentives | After incentives — RMP customers (adds $2,000 Wattsmart on the battery) |
|---|---|---|---|
| 6 kW Tesla solar + 1 Powerwall 3 | $36,100 | $26,100 | $24,100 |
| 8 kW Tesla solar + 1 Powerwall 3 | $42,800 | $30,800 | $28,800 |
| 10 kW Tesla solar + 1 Powerwall 3 | $49,500 | $35,500 | $33,500 |
Larger homes often pencil toward a second battery; the sizing logic — continuous load, motor starts, service rating — is in our whole-home backup guide . Your array size comes from your usage and your roof, not from this table — a site-specific quote and load review are required .
Which incentives are actually real in 2026?
Start with the one that is gone: the federal Section 25D residential clean energy credit is not available for expenditures made after December 31, 2025 (IRS) . Any 2026 ad whose "net" price still assumes that credit is quoting you a discount a cash buyer cannot claim . What remains flows through third-party ownership: under a PPA structure, the system's commercial owner claims the federal credit available on its side of the ledger (Section 48E) on its own equipment, and our pricing passes that through as the 25% PPA credit you see in every ladder on this page . The other real one is utility-specific: the $2,000 Wattsmart battery rebate, for Rocky Mountain Power customers only . Utility service in south Utah County varies by address — Payson, Spanish Fork and Salem run their own city power in parts of town, SESD serves others, and some pockets are Rocky Mountain Power — so we confirm your serving utility as step one . Lehi and Provo run municipal utilities, so Wattsmart does not apply at those addresses .
Why not just take the cheapest quote?
Because the cheapest quote usually changes the hardware and the financing at the same time . EG4 batteries are not on the PPA program's approved list, so a bargain EG4 quote typically means paying cash or taking a separate loan rather than riding the PPA route most Utah battery quotes use . Enphase is PPA-approved, but its battery's continuous output is a fraction of Powerwall 3's — enough for essentials, not whole-home . The full three-way comparison, datasheets cited, is in our Powerwall 3 vs Enphase vs EG4 guide . And for what the wider Utah market advertises — with sources and dates — see the 2026 Utah cost guide .
Who is behind this page?
Ask Solar Mike is a licensed Utah contractor (DOPL #14015846-5501) and a Tesla Certified Installer — verify the current status in Tesla's public installer directory . The team behind Ask Solar Mike brings 2,000+ Tesla solar and battery installs of combined experience . Ask Solar Mike has a 4.9-star Google rating from 46 reviews . Every system design is produced and reviewed by a licensed engineering firm .
Quick answers as you compare quotes
Is the federal residential tax credit still available for 2026 purchases?
No — the federal Section 25D residential credit is not available for expenditures made after December 31, 2025 (IRS) . In 2026, federal incentive value reaches homeowners through third-party-ownership structures like the PPA, which is how the 25% PPA credit in our pricing works .
Why do you show the gross price first?
Because a net number shown alone reads as the sticker price, and it is not . Every ladder on this page runs gross → after incentives, in that order, with the incentive's conditions named .
How is the $3.35/W Tesla-panel price built?
Standard solar is $3.00/W installed, and Tesla solar panels add $0.35/W, producing the $3.35/W gross installed price and $2.35/W after PPA incentives .
Do these prices change if I'm not a Rocky Mountain Power customer?
Only the last step: the $2,000 Wattsmart rebate applies to Rocky Mountain Power customers only, so a municipal-utility home's Powerwall 3 lands at $12,000 after the 25% PPA credit rather than $10,000 . In south Utah County, utility service varies by address, so confirm your serving utility from your bill as step one .
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Sources
- Tesla Powerwall 3 Datasheet, 2025 edition (13.5 kWh usable; 11.5 kW continuous; 48 A max continuous current; 185 LRA; up to 20 kW solar input; read 2026-08-30): energylibrary.tesla.com — Powerwall 3 Datasheet
- Rocky Mountain Power Wattsmart Battery program terms, effective June 15, 2026 ($2,000 enrollment incentive for a single battery 10 kW or larger; RMP customers only; read 2026-08-30): rockymountainpower.net — Wattsmart Battery
- IRS — Residential Clean Energy Credit (Section 25D termination for expenditures after December 31, 2025; re-verified 2026-08-30): irs.gov — Residential Clean Energy Credit
