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Commercial Solar Finance UK · Independent
Grants by Vertical · NHS

Solar grants and funding for nhs trusts

NHS Trusts have access to substantial capital-grant routes through PSDS Phase 4, the wider Net Zero NHS programme, and Salix loan facilities. NHS estate operates 24/7 demand profiles that make solar economics exceptionally strong, and the cost-per-tonne metric works in NHS favour because hospital electricity demand is heavily concentrated in 24/7 plant load. Trust-level portfolio applications across acute, community, mental health, and ambulance estate consistently outperform single-site applications.

PSDS NHS coverage

75–100% on bundles

Funding routes for nhs trusts

G01

PSDS Phase 4

Primary route. NHS Trusts eligible directly. Bundled applications (solar + heat pumps + LED + BMS) score better than solar-only. Typical award 75–100% of qualifying capex on competitive applications. Multi-site portfolio applications across the Trust's estate (acute hospital + community hospitals + ambulance HQ + corporate offices) routinely outperform single-site bids.

G02

Net Zero NHS programme

Cross-cutting NHS England decarbonisation framework — every Trust has Board-level commitments under the framework. PSDS applications align with Net Zero NHS targets and benefit from the strategic alignment in scoring.

G03

Salix decarbonisation loans

Zero-interest loan facility complementing PSDS. Funds the non-grant portion of bundled projects, repaid through demonstrated energy savings. NHS Trust borrowing capacity governed by Trust development authority limits.

G04

NHS Property Services capital programmes

For Trusts using NHSPS-managed estate, NHSPS operates dedicated decarbonisation capital programmes including solar deployment on the wider primary care and community estate.

G05

Innovate UK NHS-specific competitions

Periodic Innovate UK calls for healthcare-specific energy innovation (e.g. resilient critical-load + battery storage at acute sites). 50–70% grant intensity on qualifying R&D components.

Worked example: 2.4 MWp across 8 sites (East Midlands Trust)

  • Total capex: £1.92m across acute hospital + 3 community hospitals + 2 ambulance stations + corporate HQ + ops centre
  • Bundled application: solar PV + air-source heat pumps on 3 community hospitals + LED relighting + BMS upgrades
  • PSDS Phase 3 award: 75% (£1.44m) of qualifying capex
  • Salix loan: 25% (£480k) at zero interest, 10-year term, repaid through demonstrated energy savings
  • Year-one combined electricity saving: £478,000 across 8 sites
  • Heat pump operations: additional ~£62,000/year fossil-fuel cost displacement
  • Carbon savings: 1,180 tonnes CO₂ year one; 25,500 tonnes 25-year cumulative
  • CO₂ cost-per-tonne: £294 — well below Phase 4 soft cap

Best application strategy

Strongest NHS Trust strategy is multi-site portfolio bundled applications: combine acute, community, ambulance, and corporate sites in a single PSDS bid. Pair solar with heat pump installations on sites where gas-fired heat dominates current emissions — this drives the cost-per-tonne metric well below the Phase 4 soft cap and routinely secures 75–100% grant cover. Include detailed half-hourly demand modelling per site to evidence self-consumption assumptions to assessors.

NHS Trusts grants FAQs

How much PSDS funding can an NHS Trust expect?
Phase 4 awards typically cover 75–100% of qualifying capex on competitive bundled applications. Trusts that score best combine solar with heat pump installations and fabric efficiency — the cost-per-tonne metric drives award level, and bundles consistently score below the Phase 4 soft cap (currently around £350/tonne). Solar-only NHS applications rarely score competitively.
Can NHS Trusts use Capital Allowances on solar?
NHS Trusts are exempt from corporation tax, so AIA and FYA — both deductions against taxable profits — have no value to the Trust entity itself. NHS solar funding comes through capital grants (PSDS), Salix loans, and capital reserves. Charitable arms or trading subsidiaries operating from NHS estate can sometimes structure to capture allowances, but practical only on commercially-active functions like hospital catering or pharmacy.
Are NHS Trusts eligible for Salix loans?
Yes. Salix's public-sector loan facility is open to NHS Trusts directly. Loans typically zero-interest, repaid through demonstrated energy savings over 8–10 years. Most Trusts combine PSDS grant + Salix loan to fund the full project: PSDS covers 75% as grant, Salix loan covers the remaining 25% at zero cost.
How do PPA arrangements work for NHS sites?
PPAs work for NHS sites where PSDS application is unsuccessful or where capital constraints make grant timing impractical. PPA developers serving NHS sites typically require Trust-level offtake commitment, often with NHS England support letter for credit substitution. Lifetime saving lower than capital grant route, but practical alternative where grants don't come through.
What about the Net Zero NHS framework — is solar required?
Net Zero NHS doesn't require solar specifically — it requires Trust-level decarbonisation pathways covering operational and supply-chain emissions. Solar PV is one of the most direct interventions for Scope 2 emissions reduction, and most Trusts include substantial solar deployment in their net-zero plans. The framework provides strategic alignment that supports PSDS application scoring.

Mapping your eligibility for nhs trusts grants

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