The forecast is free. Pay once to go deep.
The free forecast is the same engine that powers everything paid — paid adds depth, not accuracy. One credit pack unlocks the financing workshop and deposits proposal-audit credits. No subscription, no lead-gen, no installer commissions.
Forecast
freeShould I go solar?
- The full forecast wizard — address + a utility bill, no account
- The same 8,760-hours-a-year engine that powers everything paid
- Pessimistic-to-optimistic bands (P10 / P50 / P90), 25-year value and return (NPV / IRR), a single PV array
Credit pack
one-timeA purchase does two things: it permanently unlocks the full forecast depth, account-wide, and deposits audit credits — one per proposal.
- Financing in depth — loan, lease, and power-purchase agreement compared, a price-per-watt slider, and every assumption ranked by impact
- Battery charging planned hour by hour, and every roof face modeled on its own
- Proposal audits — one credit per installer PDF you run
Unlock the workshop + one audit.
$19, one-time, against a $30,000 decision. Permanently unlocks the full forecast depth and deposits one proposal-audit credit.
Unlock — 1 creditAudit every competing quote.
Most homeowners collect 2–3 bids. The 3-pack runs each installer proposal through the same model and shows which bid wins on 25-year NPV.
Get the 3-packTrack
coming soonDid it actually work?
Each month, what you were promised vs. what showed up — bills via Green Button, production via Enphase / SolarEdge / Tesla.
Notify meThe same engine. Two depths.
Free runs the full physics and returns a real verdict. A one-time credit pack unlocks everything below and deposits audit credits you spend per proposal.
A packs cell means the feature ships with a credit pack above — no separate tier, no subscription.
A range of likely outcomes, not investment advice. We take no installer money in any form. Every figure is grounded in public data: 1.5M real installs tracked by Lawrence Berkeley National Lab, the national utility-tariff database (URDB), satellite sunlight records (NSRDB), open-source physics (pvlib). Read the full methodology before committing.