Comparison

PPA vs Operating Lease

Solar PPA vs operating lease — accounting treatment under IFRS 16, monthly cost, exit flexibility. Which suits your business?

Last reviewed 13 May 2026 6 min read By Compare

Side-by-side comparison

Solar PPAOperating lease
Payment structurePer-kWh generatedFixed monthly amount
Performance riskProviderYou (lease pays whether system works or not)
IFRS 16 treatmentTypically off-balance-sheet (service contract)On-balance-sheet right-of-use asset
Term15-25 years5-15 years typical
ExitBuy-out at FMVReturn to financier or buy at residual
TaxOperating expense; deductibleLease accounting
Tariff (per-kWh equivalent)11-16 p/kWh13-20 p/kWh

Our verdict

PPA shifts performance risk to the provider; operating lease keeps you in control of the asset but exposes you to under-performance.

When Solar PPA wins

Solar PPA typically wins when (a) you need zero upfront capital, (b) you want operations and performance risk transferred, (c) your business horizon doesn't extend to a 25-year capital commitment, or (d) you want speed to deploy.

When Operating lease wins

Operating lease typically wins when (a) you have capital and want the lowest 25-year cost, (b) you want to retain ownership of the asset and its long-term value, (c) you can manage operations in-house, or (d) you're constrained by structural reasons (e.g., procurement rules for public bodies).

Donovan Fawcett · Director, SEO Dons Ltd Twelve years in UK commercial solar SEO and PPA advisory. Editorial policy & independence.
FAQs

Comparison FAQs

Which option should I pick?

PPA shifts performance risk to the provider; operating lease keeps you in control of the asset but exposes you to under-performance. Run your specific numbers in our PPA calculator before deciding.

Can the two be combined?

Sometimes. SEG income always layers on top of either route. AIA / Full Expensing combine only with cash or self-finance. PPA + grant rarely stack — most grants exclude PPA structures.

Where can I read more about the underlying mechanics?

Our mechanics hub covers 10 deep-dives on PPA structure, pricing, escalators, term, end-of-contract, off-taker covenant, EPC, O&M and M&V.

Want to model your specific site?

Our calculator runs both scenarios with your actual kWh, tariff and site assumptions.

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Finance routes

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