Independent · unbiased · data-backed

Know what your roof will really make.

Independent, verified estimates of your real year-round output — right-sized systems, optimal panel alignment, and a second opinion on any installer's quote. For homes and small businesses.

No panels to sell. Just the numbers, simulated from your address.

3D aerial simulation of a building's rooftop and ground solar panels with a yearly yield chart
SIMULATED YIELD 209,420 kWh / yr
The problem

The quote always sounds great on paper.

Installers and solar salespeople earn more when they sell you more — so their estimate is a sales tool, not a neutral forecast. And it's the number you're about to sign for. Watt If runs the math independently, with nothing to sell, so you find out what your roof will actually do before you commit.

How it works

Three steps to a straight answer.

STEP 01

Share the details

Send your address and any quote or proposed system you've been handed. Five minutes, one form.

STEP 02

We simulate the year

We model your building's real month-by-month output from local weather, roof geometry, and shading.

STEP 03

Get your report

A clear, independent report: true yearly output, the right system size, and optimal panel alignment.

What you get

A report built on physics, not sales targets.

  • 01

    Your real year-round output

    Month-by-month production simulated for your exact location, not a national average.

  • 02

    The right system size

    Matched to your roof and your actual energy use — no oversizing to pad the invoice.

  • 03

    Optimal panel alignment

    The tilt and orientation that squeeze the most kilowatt-hours out of your space.

  • 04

    A second opinion on your quote

    We check the numbers you've been given and tell you where they hold up — or don't.

Chart of monthly energy in kilowatt-hours showing heating, cooling, solar production and net
Monthly energy balance — production vs. heating & cooling
3D model of a building with an optimized ground-mounted solar array layout
System layout & alignment optimization
Who it's for

Two roofs. Same question.

Homeowners

A five-figure decision

Going solar is one of the biggest purchases you'll make for your home. Know exactly what you'll get back — and whether the quote on your kitchen table is honest — before you sign.

Small business

Bigger roof, bigger stakes

More panels means more room for an expensive mistake. We size the system to your real load and operating hours, so the investment pays back on schedule.

Pricing

Two ways to get the truth.

Flat fees. No commission, no upsell — that's the whole point.

Verify
$50

An independent simulation of your current or proposed system — your real month-by-month output, so you can see what it will actually produce and check any quote you've been given.

  • Year-round output simulation
  • Quote sanity-check
  • Clear PDF report
Choose Verify
Recommended
Optimize
$80

Everything in Verify, plus our recommendations to get more from your roof — the right system size and the optimal panel alignment for your location.

  • Everything in Verify
  • Right-size recommendation
  • Tilt & alignment optimization
  • Clear PDF report
Choose Optimize

A payment link for your tier is emailed to you after you submit the form.

Get started

Request your estimate.

Tell us about your property. We'll email a payment link for your tier, then get to work on your report.

The more information you can share — quotes, bills, roof photos — the more accurate your simulation will be.
You'll receive a payment link by email.

Request received.

Check your email for a payment link for your tier. Once that's paid, we start simulating your roof.