Public Sector
DECs, decarbonisation plans, and portfolio energy strategy for public estates.

The commercial reality
Public authorities face annual DEC obligations, net-zero commitments, and the challenge of decarbonising ageing operational estates within constrained budgets. We provide the technical and reporting layer that sits underneath capital programmes.
Key compliance issues
- [01]Annual DEC production for occupied public buildings
- [02]Public Sector Decarbonisation Scheme (PSDS) applications
- [03]Net-zero pathways for operational estates
- [04]Aligning compliance with capital programme sequencing
How we help
Public sector fluency
Familiar with PSDS bid workflows, framework procurement, and public reporting cycles.
Portfolio DECs at scale
Rolling DEC programmes coordinated across estates.
Net-zero pathways
Costed decarbonisation plans that survive the business case.
Questions this sector asks most
[01]What is a Display Energy Certificate (DEC)?+
A Display Energy Certificate shows the actual measured energy use of a public building over the previous 12 months, rated A to G, and must be displayed where visitors can see it. Unlike an EPC, which rates the building's design, a DEC rates how the building is really being operated.
[02]Which buildings need a Display Energy Certificate?+
Public authority buildings frequently visited by the public and over 250m² of useful floor area require a DEC. Buildings over 1,000m² need a DEC renewed annually with a 7-year advisory report, while those between 250m² and 1,000m² need a DEC every 10 years.