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Public sector
Multi-site PPA Portfolio for a London Borough
A 2,100 kWp solar PPA at 11.5 p/kWh over 25 years delivers a year-1 saving of £270,000 for this public sector client.
Anonymisation note
This is an anonymised composite based on three or more comparable UK PPA deals signed 2024-2026. Numbers are accurate to ±10% of real deals; site location and operator details are fictionalised.
| Deal summary | |
|---|---|
| Sector | Public sector |
| System size | 2,100 kWp |
| PPA tariff (year 1) | 11.5 p/kWh |
| Contract term | 25 years |
| Year-1 saving | £270,000 |
The site
London Borough portfolio: 4 leisure centres, 2 town halls, 8 schools, 3 depots — total 14 sites.
The challenge
Net-zero 2030 corporate target; Salix Recycling Fund finance exhausted; political capital constraint on new borrowing.
The PPA solution
2.1 MWp multi-site PPA over 25 years; aggregated bidding via OJEU-style procurement; 11.5 p/kWh tariff with PCR 2015 / PA 2023-compliant tender.
Outcome
Year-1 saving £270,000; net-zero milestone met; sustainability portfolio reference for other boroughs.
Watch-outs we learned
Procurement process took 14 months. Two leisure-centre sites dropped due to structural roof issues. Member committee approval required for above-£500k contracts — added 12 weeks.
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