The only financial modeling platform built specifically for Prepaid PPAs, Hybrid structures, and Notice 2025-08 Safe Harbor compliance. Stop fighting with spreadsheets and start closing.
No credit card required · Free for your first 3 projects
SolarProforma.ai is the purpose-built financial engine for the deals Excel can't model — Prepaid PPAs, Hybrid structures, Section 7701(e) waterfalls, Notice 2025-08 Safe Harbor.
Not for residential leases or single-home solar — those don't need a tax waterfall engine.
Drag the sliders. Every number recalculates against the same engine that produces the lender PDF.
Drag to model your project. Engine recomputes the full waterfall on every change.
Year-by-year, 25 years. Years 1–6 carry MACRS + ITC.
Import your HelioScope or PVsyst production data in one click, and let SolarProforma.ai handle the complex finance.
One-click import · No file format wrangling · Production data flows straight into the 30-year cash flow engine
Section 7701(e) compliance doesn't have to be a nightmare. We automatically calculate Year 1 reductions, MACRS depreciation, and the 40% ITC shield.
Don't overspend on American parts. Dynamically blend US-cell and imported modules to hit the 40% threshold at the lowest possible cost — and keep the 10% ITC adder.
CFOs need options. Compare Cash, Loan, Standard PPA, and Prepaid PPA side-by-side on a single screen — see the value of tax monetization at a glance.
Below — see the engine that powers all three.
Yes. The model automatically adjusts the MACRS schedule based on the year of commercial operation date — including the TCJA bonus depreciation phase-out (40% in 2026, 20% in 2027, 0% from 2028 unless extended). Override the bonus % per project if your tax counsel reads the law differently.
We actively monitor IRS guidance — including Notice 2025-08 Safe Harbor point values for Domestic Content. When the IRS publishes a revision, the point table ships in the next release with full changelog notes so your prior analyses stay reproducible. Your domestic-content modeling is always audit-ready.
Yes. Every project exports as a fully unprotected, formula-driven .xlsx file — your tax-equity partner can trace every cell back to its assumption, edit the discount rate, swap the loan terms, whatever they need to do during diligence. No black box, no gated logic, no JSON-of-numbers dump.
Every release is regression-tested against an industry benchmark to four decimal places — if the IRR moves by even 0.01%, the deploy fails. We use Newton-Raphson with a bisection fallback so the solver converges even on cash flows with multiple sign changes (which closed-form solvers silently mishandle).
On the Enterprise tier. SAML SSO (Okta, Azure AD, Google Workspace), tenant-scoped audit log with Stripe-grade event detail, and a REST API for embedding the engine in your existing deal-desk tooling. Talk to sales and we'll scope it to your stack.