Public Sector Decarbonisation Scheme Wave 5 Playbook
DESNZ confirmed £1.425 billion for PSDS through 2025/26 (run by Salix). Wave 5 focuses on heat decarbonisation and energy efficiency with 12-month delivery caps. This guide shows contractors how to structure bids, manage phasing, and keep evidence bulletproof inside Toolfy.
£1.425bn
PSDS funding (2025/26)
DESNZ / Salix
Dec 2024
Wave 5 bid window
Salix schedule
12-month cap
Delivery timeline
Grant terms
⚠️ Important Disclaimer
This guide is for general informational and educational purposes only. It does not constitute professional advice of any kind (legal, financial, tax, insurance, or otherwise).
Before making business decisions: Consult with qualified professionals (solicitors, accountants, insurance brokers, etc.) who can assess your specific circumstances. Laws, regulations, and industry standards change frequently and vary by location and situation.
Toolfy and the article authors accept no liability for decisions made or actions taken based on information provided in this guide. You are solely responsible for ensuring compliance with all applicable laws and regulations.
Grant milestones + evidence
| Stage | Key requirements |
|---|---|
| Expression of Interest |
|
| Full application |
|
| Pre-contract |
|
| Delivery + monitoring |
|
Toolfy workflow for PSDS
Bid build
- Store audits, cost plans, and authorisation letters in one folder.
- Use tasks to chase estates teams for data (DECs, CRC, metering).
- Generate board-ready summary packs with one click.
Delivery control
- Break projects into packages (fabric, HVAC, controls) with budgets + owners.
- Capture commissioning evidence + invoices tied to each package.
- Tag each spend item with funding source (Salix, match) for claim forms.
Savings verification
- Schedule M&V tasks and ingest BMS data or manual readings.
- Compare actual savings vs model and flag variances.
- Export annual reports for Salix and internal carbon dashboards.
Financing + procurement tips
- Align Salix drawdowns with contractor payment schedules to avoid front-loading costs.
- Use existing frameworks (e.g., CCS, Pagabo) to speed procurement while staying compliant.
- Track risk registers and mitigation actions centrally to keep funders updated.
Interactive PSDS checklist
Deliver grant-backed retrofits with zero inbox chaos
Toolfy unites bid packs, delivery schedules, and evidence so Salix claims go out on time and cash keeps flowing.
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