Most PPA providers hide the maths and most installers just say "contact us". This shows both side by side for your site — upfront cost, annual saving, 25-year net benefit and who owns the asset.
Thanks — we're matching you to one MCS-certified commercial installer who can firm up these numbers for your site. Expect contact within one working day.
Estimates use 2026 UK figures (tiered £/kWp by system size, ~950 kWh/kWp/yr, sector-typical self-consumption, a PPA rate ~40% below grid, 50% first-year allowance at 25% corporation tax). Indicative only — your real figures depend on your load profile, roof and the PPA terms offered.
Best lifetime value
Buy outright
You own the system and keep 100% of the savings.
Upfront cost
—
Saving, year 1
—
Net benefit over 25 years
—
Best for cashflow
PPA (funded)
No upfront cost; you buy the solar power at a fixed discount.
Upfront cost
£0
Saving, year 1
—
Net benefit over 25 years
—
You do not own the asset (buyout may be offered).
Get these numbers firmed up for your site
We'll match you with one MCS-certified commercial installer who can survey your roof, model your half-hourly data and quote both buy and PPA options. One installer, never five.