Grant / Funding Route
Salix PSDS funding for office solar
Public Sector Decarbonisation Scheme (Salix PSDS): Up to 100% capex grant. Eligible for central government, nhs, local authority, fe/he, schools.
At a glance
- Funding type
- Public Sector Decarbonisation Scheme (Salix PSDS)
- Value
- Up to 100% capex grant
- Eligibility
- Central government, NHS, local authority, FE/HE, schools
Salix Public Sector Decarbonisation Scheme is the largest single grant route for UK public-sector office solar in 2026. Phase 4 funding rounds open annually (typically January-March application window) with grant awards ranging from £100k to £6m+ per project.
PSDS grants typically cover up to 100% of capex costs for solar PV combined with heat decarbonisation measures (heat pumps, fabric upgrades). Standalone PV-only projects can also qualify but receive lower funding intensity. Awards are competitive and weighted toward projects delivering the highest tonnes of CO₂ saved per pound of grant funding.
Eligible bodies include:
The PSDS application process requires: a credible decarbonisation pathway document (typically Heat Decarbonisation Plan), evidence of board / committee sponsorship, a clear capital and operational cost-benefit analysis, and a delivery timeline aligning with funding window milestones.
We have delivered Salix PSDS-funded solar installations across 18 public-sector clients since 2022, including local authorities, FE colleges, and NHS trusts. We prepare the PSDS application paperwork as part of the project proposal — typically saving 60-100 hours of in-house effort and significantly improving application strength.