What emissions compliance consultants do
Emissions compliance consultants measure an organisation’s greenhouse-gas emissions and present them in the formats that UK regulation requires.
The core output is a Scope 1, 2 and 3 inventory built on the GHG Protocol Corporate Standard1 using the UK Government’s DESNZ conversion factors2, which are published annually.
That single data set then feeds SECR, UK SRS S2 and the energy figures behind ESOS.
Scope 1, 2 and 3
The GHG Protocol divides emissions into three scopes.
Scope 3, covering fifteen value-chain categories, is usually the largest and hardest to measure1.
| Scope | What it covers | Typical examples |
|---|---|---|
| Scope 1 | Direct emissions from owned or controlled sources | Gas combustion, company fleet |
| Scope 2 | Indirect emissions from purchased energy | Electricity, heat, steam |
| Scope 3 | All other value-chain emissions (15 categories) | Purchased goods, business travel, use of sold products |
We apply current DESNZ factors to activity data so each figure is traceable from source to disclosure2.
Feeding SECR, UK SRS and ESOS
One inventory serves several regimes.
The Scope 1 and 2 figures and associated energy use populate the SECR disclosure in the Directors’ Report4.
The same metrics, plus Scope 3, feed the climate disclosures of UK SRS S23, while ESOS audits the underlying energy consumption.
Building the data once, to a consistent methodology, avoids the common problem of several regimes reporting subtly different numbers from the same business.
Data quality
Credible emissions reporting depends on data quality, not just calculation.
We document the methodology, trace activity data to source, state the emission factors used, and record where estimates or proxies are applied — in line with the completeness and accuracy principles of the GHG Protocol1.
Assurance readiness
Emissions data is increasingly subject to external assurance, so we build it to be verifiable from the outset.
The FRC’s sustainability assurance standard, ISSA (UK) 5000, was published on 12 November 2025 and is effective from 15 December 20265.
An assurance-ready inventory has a documented methodology, a traceable data trail and a defensible treatment of estimates — the same qualities that make a footprint useful for SECR and UK SRS S2 in the first place.
Frequently asked questions
What do emissions compliance consultants do?
Emissions compliance consultants measure a company’s greenhouse-gas emissions across Scope 1, 2 and 3 using the GHG Protocol Corporate Standard and current DESNZ conversion factors, then present the resulting inventory in the formats required by SECR, UK SRS S2 and the data behind ESOS. The output is an auditable footprint that can support regulatory disclosure and assurance.
What are Scope 1, 2 and 3 emissions?
Scope 1 is direct emissions from owned or controlled sources, such as fuel combustion and company vehicles. Scope 2 is indirect emissions from purchased electricity, heat or steam. Scope 3 covers all other value-chain emissions across fifteen categories defined by the GHG Protocol — typically the largest and hardest part of a footprint to measure.
How does emissions data feed SECR, UK SRS and ESOS?
A single GHG Protocol inventory underpins several regimes: Scope 1 and 2 figures and the associated energy use populate the SECR disclosure in the Directors’ Report; the same metrics, plus Scope 3, feed UK SRS S2 climate disclosures; and ESOS audits the energy consumption that sits behind those numbers. One robust data set therefore satisfies multiple obligations.
What does assurance readiness mean for emissions data?
Assurance readiness means the emissions inventory has a documented methodology, traceable activity data, clearly stated emission factors and a defensible treatment of estimates, so an external assurance provider can verify it. This matters because ISSA (UK) 5000, the FRC’s sustainability assurance standard, was published on 12 November 2025 and is effective from 15 December 2026.