SECR reporting: the annual disclosure that compounds
Streamlined Energy and Carbon Reporting requires large UK companies and LLPs to publish energy use, emissions and efficiency action in the directors' report — every financial year, with comparatives. Unlike ESOS, there is no four-year breathing space: SECR compounds annually, and so do weak numbers.
Who is caught
Three groups: all quoted companies; unquoted companies meeting two of the three "large" tests (250+ employees, £36m+ turnover, £18m+ balance sheet); and LLPs meeting the same tests. The thresholds are assessed per financial year, so growth pulls companies into scope without ceremony. Organisations using under 40 MWh in the year can claim the low-energy exemption — but must say so in the report, which itself is a disclosure.
Note the threshold asymmetry with ESOS: SECR's financial tests (£36m/£18m) sit below ESOS's (£44m/£38m), and SECR needs only two of three tests rather than ESOS's specific combinations. Plenty of companies are inside SECR but outside ESOS. If you have just crossed into SECR, checking your ESOS Phase 4 position at the 31 December 2026 qualification date is the obvious follow-up.
The required content, without the padding
- UK energy use — electricity, gas and transport at minimum, in kWh.
- Scope 1 and 2 emissions — calculated with published conversion factors, stated in tonnes CO₂e.
- An intensity ratio — emissions normalised to a business metric: per £m revenue, per unit produced, per m² of floor space. Choose one you can keep using; switching metrics mid-series invites questions.
- Methodology statement — most companies follow the GHG Protocol with government conversion factors.
- Efficiency narrative — what you actually did this year to reduce consumption. This is where hollow reports get exposed.
- Comparatives — prior-year figures from year two onward, which is why the first year's data quality decisions matter disproportionately.
Where companies go wrong
Three failure patterns recur. First, estimated data hardening into precedent — a first-year shortcut on landlord-supplied electricity or grey-fleet mileage becomes the method auditors expect justified forever after. Second, the orphaned intensity metric — chosen badly in year one, then either misleading or discontinuously restated. Third, the empty narrative: "the company continues to monitor its energy use" satisfies nobody, least of all the lenders and tender assessors who increasingly score these disclosures.
The fix for all three is the same: real measurement infrastructure. An audit-grade data exercise establishes meter-level baselines, documents the methodology once, and generates the efficiency actions that make the narrative true. Where the actions include on-site generation, the audit-to-solar pathway shows the knock-on effect: every kWh of self-generated solar reduces reported Scope 2 emissions directly.
SECR as an asset rather than a chore
The disclosures are public and machine-readable, and they are being read: by banks pricing sustainability-linked facilities, by large customers cascading their own Scope 3 obligations down the supply chain, and by acquirers running ESG due diligence. A clean three-year SECR series with falling intensity is becoming a mild commercial advantage; a ragged one is a diligence flag. The marginal cost of doing it well, given the data has to be assembled anyway, is small — that is the honest case for treating SECR seriously.