Business solar finance: worked examples
How the numbers come together when you finance a business solar system, across different sectors and funding routes. They are illustrative scenarios with modelled 2026 figures: no real business, project or client is described.
Illustrative examples, not real businesses. Every business, location and figure is modelled from standard 2026 assumptions to explain the method. Your real numbers depend on your site, consumption and the actual finance terms offered.
Worked example: a hotel funds 60 kWp on asset finance
Illustrative scenario · assumed location: Taunton, Somerset
60 kWp Asset finance, hire-purchase structure £13,200 /yr, modelled ~3yr payback after AIA
Read the worked example → Worked example: a mixed farm buys 80 kWp outright with AIA relief
Illustrative scenario · assumed location: Boston, Lincolnshire
80 kWp Capital purchase plus Annual Investment Allowance £17,300 /yr, modelled ~3yr payback after AIA
Read the worked example → Worked example: an office buys 30 kWp outright with year-one AIA relief
Illustrative scenario · assumed location: Reading, Berkshire
30 kWp Capital purchase plus Annual Investment Allowance £6,600 /yr, modelled ~3yr payback after AIA
Read the worked example → Worked example: 48 kWp on a green business loan for an engineering firm
Illustrative scenario · assumed location: Coventry, West Midlands
48 kWp Green business loan, 100% financed £10,200 /yr, modelled ~3yr payback after AIA
Read the worked example → Worked example: a warehouse funds 150 kWp on six-year hire purchase
Illustrative scenario · assumed location: Wakefield, West Yorkshire
150 kWp Hire purchase, six-year term £31,400 /yr, modelled ~3yr payback after AIA
Read the worked example → Worked example: a cold store takes 250 kWp on a zero-upfront PPA
Illustrative scenario · assumed location: Peterborough, Cambridgeshire
250 kWp Power Purchase Agreement, zero upfront £15,200 /yr, modelled
Read the worked example →