Free roof-suitability & savings estimate- written numbers in 24 hours, no door-knockers, no obligation · Get my estimate →

12.0 kW + Powerwall 3 - Catalina Foothills

Case study · TEP · 2025-04

12.0 kW + Powerwall 3 - Catalina Foothills

Tucson, AZ 85718 · 28× SunPower Maxeon 6 AC, 430W · Integrated Maxeon AC microinverters · 1× Tesla Powerwall 3 (13.5 kWh).

System spec sheet

Every component on the truck.

No mystery parts, no rebranded modules - Tier-1 components in every install, listed by name and model.

Monthly bill

Before solar vs. after

Before

$348 avg

After

$45 avg

Federal credit claimed: $13,440 (30% of $44,800 installed)

Production · year one

Model vs. actual

SunSight model

20,400 kWh

Actual year one

20,150 kWh

99% of modelof model - within engineering tolerance.

Installer notes

The thinking behind this design.

Mixed-roof Foothills custom (foam over the family room, tile over the bedroom wing) - we used different mounting hardware on the two planes and weatherproofed the foam-roof penetrations with EPDM + 3-course flashing. TEP's avoided-cost export rate runs roughly 50% of retail, so we engineered for high self-consumption: Powerwall covers the 5–9pm AC load and the array sized to overproduce 8am–3pm so the battery is full by mid-afternoon every day.

From the neighborhood

Real customers. Real receipts.

5-star average across 480+ Google reviews. We’re happy to share full monthly-production data on any nearby install - or just drive you past the rooftop with our yard sign on it.

★★★★★
Three solar companies pitched us. SunWright was the only one who showed us PPA, loan, AND cash numbers side by side. Eight months in, our APS bill is $14 and we run AC at 74° all summer.
$211/moactual savings
★★★★★
Crew was on time, panels were on the roof in one day, and the city inspector signed off in five days flat. They did the SRP rebate paperwork for us. Best contractor experience we’ve had in this house.
$232/moyear-one bill drop
★★★★★
We went PPA because we’re moving in five years. SunWright still treated it like our forever house - engineered for the pool load, walked us through the transfer clause, no pressure to upsell to a loan.
$148/mooff APS bill

Free quote in 2 minutes

Want a project like this one?

A NABCEP designer can model your roof against the same 12.0 kW DC-class playbook used on this Tucson install. Drop the form below for a free written quote inside 24 hours.

Mon–Sat, 7am–7pm

(602) 555-0177

Get my free savings quote

All projects