What is the Public Sector Decarbonisation Scheme?

PSDS is a UK government grant scheme administered by Salix that funds capital decarbonisation works in public sector buildings — heat decarbonisation, energy efficiency and on-site renewables. Successive funding phases have supported schools, hospitals, councils and central government estates. A credible technical report with quantified carbon savings and costings is a core requirement of any application.

Do you work with local authorities and NHS trusts?

Yes. We work with local authorities, NHS trusts, housing associations, universities, further education colleges and central government bodies. Our reports are written to the technical evidence standards required by Salix and other public sector funders, and follow HMT Green Book financial methodology.

Can you support a PSDS application from start to submission?

Yes. We can lead the technical evidence base (baseline, measures, costings, carbon savings, payback) and provide the narrative and supporting calculations formatted for the application portal. We typically work alongside an in-house project sponsor or appointed bid writer who manages the commercial and procurement sections of the application.

How long does a decarbonisation report take to produce?

A single-building report typically takes four to six weeks from data receipt. An estate-wide report depends on the number of buildings, data quality and whether site surveys are needed — most multi-building programmes complete within eight to twelve weeks. We can run an accelerated programme where a funding deadline requires it.

Public Sector

Decarbonisation Reports

Estate-wide decarbonisation reports for public sector bodies — supporting PSDS funding bids, capital planning, and mandatory carbon reduction commitments.

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What it is

Decarbonisation reports set out the carbon reduction potential of a building or estate, the interventions required to achieve it, and the capital investment needed. For public sector organisations, these reports support Public Sector Decarbonisation Scheme (PSDS) funding bids and provide the evidence base for estate capital planning.

We produce reports that cover the full decarbonisation pathway for a building or portfolio — from current energy performance through to net zero alignment — with costed recommendations, carbon savings, and supporting technical calculations.

When you need it

You are a public sector body, local authority, housing association or NHS trust preparing a PSDS or similar funding bid and need a credible technical report.
You have a statutory or voluntary carbon reduction target and need an evidence-based plan for your estate.
You need to prioritise capital expenditure across a portfolio of buildings and want an independent assessment of where investment will deliver most carbon impact.
Your board or leadership team needs a clear, credible picture of the decarbonisation options and costs for your estate.
You have existing EPCs, energy data or audit reports that need to be consolidated into a coherent decarbonisation strategy.

Our approach

1
Estate baseline
We review existing energy data, EPCs and audit reports to establish a current-state baseline for the estate: energy consumption, carbon emissions and current EPC ratings.
2
CRREM pathway assessment
For applicable building types we run CRREM V2 pathway analysis to identify misalignment years and the carbon reduction required by decade.
3
Measure identification
We identify the decarbonisation interventions applicable to each building type — insulation, heat pump conversion, solar PV, LED, controls and BMS upgrades — with reference to current best practice and PSDS eligible works.
4
Costed options appraisal
We cost each measure package using current market rates, apply HMT energy price escalation and calculate simple payback, 15-year NPV and annual carbon saving.
5
Prioritised report
We produce a building-by-building or estate-level report with a prioritised measure schedule, capital programme, and carbon reduction trajectory.
6
Funding bid support
Where required, we provide technical narrative and supporting calculations formatted for PSDS or other public sector funding applications.

What you receive