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PPA size: 10MWp+ PPA (utility-scale)
10MWp+ PPA (utility-scale) — UK 2026 indicative cost & PPA tariff
For a 10MWp+ PPA (utility-scale) on-site solar system the UK 2026 indicative capex is £6.5m+; under a PPA the year-1 tariff sits at £42–£55/MWh fixed (4.2–5.5 p/kWh). Investment-grade corporates, retailers, banks, tech operators with TCFD commitments — typically corporate or virtual PPA structures.
2026 indicative numbers
| System size | 10MWp+ PPA (utility-scale) |
| Indicative capex (cash) | £6.5m+ |
| PPA tariff (year 1) | £42–£55/MWh fixed (4.2–5.5 p/kWh) |
| Annual generation | 9,500,000 kWh |
| Indicative annual saving | £1,615,000+ (vs 30 p/kWh grid) |
| Typical audience | Investment-grade corporates, retailers, banks, tech operators with TCFD commitments — typically corporate or virtual PPA structures. |
| Off-taker requirement | Investment-grade rated; 10-15 year contract |
PPA vs cash purchase at this size
A 10MWp+ PPA (utility-scale) system costs £6.5m+ to buy outright. Under PPA you pay £0 upfront and get the same kWh for £42–£55/MWh fixed (4.2–5.5 p/kWh). Over 25 years a cash purchase typically costs less in total — but ties up capital and puts performance risk on you. See our PPA vs cash comparison.
What drives the tariff at this size
- System size — bigger systems = lower £/Wp = lower p/kWh
- Roof condition and complexity (penetrations, shading, age)
- DNO connection availability — G99 capacity drives build cost
- Off-taker covenant rating
- Contract term (15 vs 20 vs 25 years)
- Escalator structure (fixed vs RPI-linked)
Get a 10MWp+ PPA (utility-scale) PPA tariff
60-second form. We'll match your site to providers comfortable at the 10MWp+ PPA (utility-scale) band and return an indicative tariff within one working day.
FAQs
Size-specific FAQs
What is the typical capex for a 10MWp+ PPA (utility-scale) system in 2026?
For a 10MWp+ PPA (utility-scale) system in 2026, indicative capex is £6.5m+. Under a PPA you don't pay this directly — the provider funds the system and you pay a per-kWh tariff.
What annual generation should I expect from a 10MWp+ PPA (utility-scale)?
In the UK Midlands a 10MWp+ PPA (utility-scale) system typically generates around 9,500,000 kWh/year — about 950 kWh/kWp. Southern UK gets 1,050; Scotland 850. We model your specific postcode in the calculator.
Who is a 10MWp+ PPA (utility-scale) PPA suited to?
Investment-grade corporates, retailers, banks, tech operators with TCFD commitments — typically corporate or virtual PPA structures.
What's the off-taker requirement for a 10MWp+ PPA (utility-scale) PPA?
Investment-grade rated; 10-15 year contract
Get a 10MWp+ PPA (utility-scale) indicative tariff in 24 hours
A 60-second form. We'll match you to PPA providers comfortable at the 10MWp+ PPA (utility-scale) band and return a £42–£55/MWh fixed (4.2–5.5 p/kWh) indicative tariff.
Get an indicative PPA tariff
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