Purely Energy product
Green Energy & Carbon Compliance
Brokered UKA and EUA allowances for ETS-regulated emissions, plus REGO-backed electricity and GOO-backed biomethane on the same Ofgem-traceable evidence trail.
- ETS allowance execution
- UKA & EUA, broker-routed
- Electricity certification
- 100% REGO-backed
- Gas certification
- GOO-backed biomethane
- Reporting compatibility
- UK ETS, EU ETS, SECR, ESOS
One desk for the two carbon instruments most UK businesses now need: ETS allowances (UKAs and EUAs) for regulated Scope 1 emissions, and REGO/GOO certificates for matching electricity and biomethane supply.
UKAs (UK Emissions Trading Scheme allowances) and EUAs (EU ETS allowances) are the settlement instruments that ETS-regulated installations must surrender to cover their reported emissions every year. We broker both into your operator account: spot purchases against compliance deadlines, forward tranches across the curve, and calendar-driven execution where you want price certainty against a budget. UKA and EUA pricing on this page tracks the same wholesale feed as /tools/carbon/uk-ets and /tools/carbon/eu-ets, so you see the level we're trading against in real time.
A REGO is a per-MWh certificate that Ofgem issues to a UK renewable generator each time they export to the grid. The certificate is uniquely numbered, ties back to the named generation site, and is retired against your meter when matched to your consumption. Eligible sources include onshore and offshore wind, solar PV, hydro, and qualifying biomass. We can supply REGOs from a specific technology mix on request, including 100 percent wind or fully traceable single-generator supply where suppliers offer it.
A GOO is the gas equivalent. Biomethane is produced from anaerobic digestion of agricultural feedstock, food waste, landfill gas, or sewage gas, then injected into the national network. The GOO certifies that the volume of gas you consumed was matched by an equivalent volume of biomethane injected upstream. Like a REGO, each GOO is uniquely numbered and independently auditable.
Bringing allowances and certificates onto one desk keeps the audit trail clean. UKAs and EUAs cover the regulated Scope 1 emissions you cannot reduce away; REGO-backed electricity lets you report zero market-based Scope 2 under the GHG Protocol; GOO-backed biomethane closes the loop on the Scope 1 fuel emissions that ETS does not cover. SECR, ESOS Phase 4, and CDP all sit on top of the same evidence pack. Pair with Purely Insights to track tonnes of CO2e covered and avoided per site per month.
What’s included
Every feature listed ships in the standard product. Nothing here is a paid upgrade.
Allowances and certificates
- UKA execution for UK ETS-regulated installations, registry transfer handled
- EUA execution for EU ETS-regulated and CBAM-exposed installations
- Ofgem-issued REGOs for every MWh of electricity consumed
- Ofgem-issued GOOs for every MWh of biomethane gas
- Certificates and allowances uniquely numbered, fully traceable
- Independent audit trail for each retirement and allowance transfer
- Technology-specific REGOs available (100% wind, 100% solar, etc.)
- Optional single-site PPA matching for I&C portfolios
Reporting and disclosure
- UK ETS and EU ETS surrender packs ready for compliance deadlines
- GHG Protocol market-based Scope 2 reporting (zero electricity emissions)
- SECR-ready emissions data, by site and by fuel
- ESOS Phase 4 evidence pack with consumption and certificate trail
- B-Corp supply-chain documentation on request
- Carbon Disclosure Project (CDP) input data formatted to spec
- Custom investor and stakeholder reports via Insights
Allowance trading and supply pricing
- UKA and EUA pricing tracked live against the same feed as /tools/carbon/uk-ets and /tools/carbon/eu-ets
- Single-trade, tranched, or calendar-driven execution on allowances
- Available on Fixed contracts, Flex strategies, or pass-through
- Single-fuel (electricity-only) or dual-fuel (electricity + gas) supply
- REGO premium typically £1 to £4/MWh on electricity
- Biomethane GOO premium typically 2 to 6 p/kWh on gas, technology dependent
- Volume tranching on biomethane and allowances to manage premium when the curve dips
Specifications
The technical answers procurement, finance, and IT will ask for.
| Allowances brokered | UKAs (UK ETS) and EUAs (EU ETS), spot and forward |
|---|---|
| Electricity certification | REGO (Renewable Energy Guarantee of Origin), Ofgem issued |
| Gas certification | GOO (Guarantee of Origin), Ofgem issued |
| Eligible electricity sources | Onshore & offshore wind, solar PV, hydro, qualifying biomass |
| Eligible gas sources | Biomethane (anaerobic digestion, food waste, landfill, sewage) |
| Audit trail | Per-certificate / per-allowance serial, generator name or registry account, retirement record |
| Reporting standards supported | UK ETS, EU ETS, GHG Protocol Scope 2 (market-based), SECR, ESOS, CDP |
| Compatible products | Fixed contracts, Purely Flex, pass-through agreements |
| Technology-specific options | 100% wind, 100% solar, generator-specific PPA matching |
| Premium over brown supply | £1 to £4/MWh electricity, 2 to 6 p/kWh gas (typical) |
| Eligibility | Any UK business, charity, or public-sector body, with UK or EU ETS exposure where allowances are required |
Compare
Side-by-side against the realistic alternatives, no straw men.
| Feature | Green (REGO/GOO backed) | Standard brown supply | Brown supply + carbon offset |
|---|---|---|---|
| Renewable evidence | Per-MWh Ofgem certificate | None | Voluntary offset registry |
| GHG Scope 2 (market-based) | Zero emissions reportable | Grid average | Cannot net to zero |
| SECR / ESOS evidence | Audit-ready | Not evidenced | Treated as Scope 2 + offset |
| Independence of audit | Ofgem | n/a | Varies by registry |
| Typical premium | £1 to £4/MWh elec | Baseline | Offset price + admin |
| Stakeholder credibility | High | Low | Mixed, depends on registry |
Real-world use cases
Scenarios from the Purely Energy book of business.
| Customer profile | Scenario | Outcome with Green Energy & Carbon Compliance |
|---|---|---|
| Tech SaaS firm, single HQ + 2 satellite offices | B-Corp recertification required evidenced renewable electricity across all UK operations. | 100% REGO-backed wind electricity on a 24-month fixed, certificates archived in the B-Corp documentation pack. |
| Manufacturing group, 8 sites, 22 GWh gas | ESG strategy commits to biomethane substitution by FY 27, board needs evidence. | Phased GOO-backed biomethane: 30 percent year 1, 60 percent year 2, 100 percent year 3, with quarterly emissions reporting via Insights. |
| Retail chain, 41 stores, £950k spend | CDP scoring weighted heavily toward Scope 2 disclosures and renewable percentage. | REGO-backed electricity across the entire estate, dashboard exports tCO2e avoided per store per month for the CDP submission. |
Frequently asked questions
Is REGO-backed electricity actually renewable?
It is supply matched by certificate. The electrons in your wires are the same grid mix as everyone else's, but for every MWh you consume there is a REGO retired that proves an equivalent MWh was generated from a UK renewable source and exported to the grid. Under the GHG Protocol market-based method, that allows you to report zero Scope 2 emissions on the matched volume.
Why not just buy carbon offsets instead?
Offsets are a different instrument and they sit higher in the avoidance hierarchy: avoid first, reduce next, substitute renewable supply where possible, then offset what is left. REGO-backed supply is a substitution, not an offset. It also tends to score better with stakeholders, lenders, and rating agencies because it is independently audited by Ofgem.
Can I pick the technology mix?
Yes, where suppliers can source it. Common requests are 100 percent wind, 100 percent solar, or hydro-only. Some I&C portfolios also negotiate single-generator matching via a PPA-style arrangement. Single-technology premiums vary so we model it before you commit.
What about REGOs sourced from the EU?
We arrange Ofgem-issued UK REGOs only. EU GoOs (Guarantees of Origin) are sometimes used in the UK market but they are weaker evidence and increasingly rejected by sustainability standards. If you want UK provenance, we have it.
Is biomethane the same as natural gas?
Chemically it is identical, methane is methane. The difference is the source. Biomethane comes from anaerobic digestion of organic matter, captured and upgraded to grid-injection quality. The carbon released when you burn it is biogenic, not fossil, so it is treated as net-zero under most accounting standards.
How is the price quoted?
Every Purely Energy quote breaks the unit price into its four components: wholesale energy, non-commodity costs, the supplier margin, and the Purely margin. You see all four before you sign. There is no all-in price hiding a broker uplift, and no commission paid by the supplier you do not know about.
Can I get green supply on a Flex contract?
Yes. REGO-backing layers cleanly onto Fixed, Flex, and pass-through contracts. The certificate retirement happens at consumption time so it does not change the trading mechanics of Flex.
Do you stay involved after the contract is signed?
Yes. Full contract support is included for every customer for the life of the agreement. That covers bill validation, query handling, supplier escalations, change-of-tenancy events, and renewal-timing recommendations. We are not a one-and-done broker.
Question not covered? Call us on 0161 521 3400 or request a quote and we will answer it during the discovery call.
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Fixed Energy Contracts
Layer REGO and GOO onto any 1 to 5 year fixed term.
Get a green quote
Tell us your MPAN/MPRN and the technology mix you want.
Businesses already using this approach
Real Purely Energy clients, real numbers. Each case study shows what the business was facing, what we did, and the measured result.
Good Taste Bakery Case Study
Good Taste Bakery saves £67,625 on energy bills with Purely Energy
Read case studyAllure Aesthetics saves £1,708 annually despite rising energy prices and inflation
Rosin was caught out by the energy crisis and was stuck with extremely expensive energy prices. As a busy salon owner, Rosin was struggling to find the time to speak to different suppliers and navigate the energy market in her own time.
Read case studyReady to discuss Green Energy & Carbon Compliance?
Same-day quote for SME, 48-hour turnaround for mid-market and I&C portfolios. Every quote shows wholesale, non-commodity, supplier margin, and Purely margin separately.
Supporting services
Other services we offer
Sit alongside any product. Layer these in when the underlying contract isn't enough on its own.

Service
Metering & Data
Half-hourly monitoring, MOP/MAM/DC services, smart meter rollout, and anomaly detection. See exactly where your energy goes.
Read about Metering & Data
Service
Flexibility & Trading
Tranche-based wholesale purchasing, risk management, and market intelligence. Dedicated trading desk for UK businesses spending £500k+ on energy.
Read about Trading
Service
Carbon Compliance
SECR, ESOS Phase 4, EU ETS / UK ETS reporting, and B-Corp evidence packs. Turn your consumption data into audited compliance disclosures.
Read about Carbon Compliance

