What is ESOS?
UK energy audits • savings pipeline
ESOS (Energy Savings Opportunity Scheme) is the UK programme requiring eligible organisations to conduct energy assessments/audits and identify practicable opportunities to improve energy efficiency and reduce costs.
What a strong ESOS programme produces
Energy baseline
Mapped energy use across sites, processes, transport (as applicable), with clear boundaries.
Opportunity register
A practical list of measures, costs, savings, paybacks and implementation owners.
Governance & follow-through
A way to turn audit findings into capital plans, operating improvements, and SECR narratives.
ESOS checklist (implementation-ready)
- Confirm eligibility and reporting boundary (sites, transport, significant energy uses).
- Compile activity data and meter evidence; fix gaps early.
- Run assessments and quantify opportunities with practical assumptions.
- Prioritise measures (cost, payback, operational feasibility, risk).
- Build an action plan so ESOS becomes a savings pipeline—not a one-off exercise.
RSustain UK provides advisory & implementation support; no verification/assurance services.
Turn compliance into savings
We help you structure an ESOS programme that produces an actionable opportunity register and a credible follow-through plan.
Discuss ESOS support