24/7 base load
Hospital ICUs, theatres, imaging suites are 24/7 — exceptionally strong PV match.
Sector: Hospitals & NHS
Solar Power Purchase Agreements for hospitals & nhs
NHS Foundation Trusts and acute hospitals are the UK's largest concentrated energy consumers — and have rapidly become the largest single PPA customer cohort in 2026. NHS Greener targets require carbon neutrality for direct emissions by 2040; PPAs are core delivery.
| 2026 typical PPA profile — hospitals & nhs | |
|---|---|
| System size | 250kWp–2MWp |
| Year-1 PPA tariff | 11–15 p/kWh |
| Demand-PV match | 24/7 base load — strong PV match |
| Annual saving range | £40k–£320k |
Five drivers of PPA economics in hospitals & nhs
NHS Greener mandate
All Trusts must produce a Green Plan; PPA delivery is audited.
PFI/PF2 estates
Many Trust buildings are PFI; PPA structures designed to overlay PFI.
Vast roof inventory
NHS estate has 6,500+ acres of roof; only ~15% currently has solar — huge runway.
Sub-verticals within hospitals & nhs
Every sub-vertical inside this sector has slightly different PPA economics — load profile, roof type, covenant strength all vary.
Acute hospitals
Largest sites (1MWp+ systems); corporate PPA structures.
Community hospitals
Mid-size (200-500kWp); standard on-site PPA.
Mental health units
Lower load; often paired with battery for resilience.
Community pharmacies (chains)
Multi-site portfolio approach.
Dental practices (groups)
Sleeved PPA for multi-site groups.
Care homes (NHS-funded)
See dedicated /sectors/care-homes/ page.
Case study
1.5MWp PPA for an NHS Foundation Trust
| System size | 1,500 kWp |
| PPA tariff | 11.0 p/kWh (year 1) |
| Contract term | 25 years |
| Year-1 saving | £195,000 |
Watch-outs specific to hospitals & nhs
- PFI overlays: PFI partner consent required for roof use; can be a 6-month negotiation.
- Backup generator coordination: solar inverter sync with diesel backup needs careful design.
- Infection control roof access: works planning must integrate with infection control on adjacent wards.
FAQs
PPA FAQs — Hospitals & NHS
What's the typical PPA tariff for hospitals & nhs in 2026?
Indicative 2026 tariffs for hospitals & nhs range 11–15 p/kWh. The lower end applies to investment-grade off-takers on 25-year contracts with strong daytime self-consumption; the upper end applies to smaller systems or shorter terms. Our PPA calculator models your specific site.
How long does the PPA setup take?
From first call to commissioning typically 6-12 months. Indicative tariff in 2-4 weeks, site survey + heads-of-terms in 4-8 weeks, full contract in 8-12 weeks, build in 6-16 weeks. Larger systems with DNO upgrades take longer.
What system size suits hospitals & nhs?
Typical 2026 systems for hospitals & nhs range 250kWp–2MWp. Smaller sites stack with battery storage; larger sites may split across rooftop + ground-mount or multi-site sleeved structures.
Are there grant alternatives that beat PPA?
For public-sector sites, PSDS often gives a lower lifetime cost — but with lengthy procurement and 100% utilisation requirements. For energy-intensive industry, IETF stacks. For most commercial buyers, PPA wins on cashflow and admin simplicity. See PPA vs grant-funded.
What's the off-taker covenant requirement?
Most providers want investment-grade or strong-unrated covenant. For weaker covenants, parent guarantees, letters of credit, or shorter contracts can bridge. See off-taker covenant deep-dive.
Get an indicative PPA tariff for your hospitals & nh site
A 60-second form gives us enough to return a vetted provider shortlist and indicative 11–15 p/kWh tariff within one working day.
Get an indicative PPA tariff
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