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Corporate Gas Decarbonization: Registry-Grade Scope 1 and Scope 3 Attestations
Mandatory disclosure has arrived for the corporate balance sheet.
Corporate gas decarbonization is no longer a voluntary motion at the Fortune 500 / FTSE scale. The convergence is now operational:
- California SB 253 and SB 261,
- CSRD ESRS E1,
- IFRS S2 / ISSB-aligned disclosure,
- the SBTi Corporate Net-Zero Standard,
- and SEC climate-rule expectations.
Different frameworks. Same underlying requirement.
The inputs feeding Scope 1, Scope 2, and Scope 3 lines have to survive third-party assurance.
That is the operational reality this page addresses — for corporate sustainability buyers, supply-chain decarbonization leads, and ESG procurement teams responsible for the integrity of those inputs.
Corporate gas decarbonization, in one paragraph. Greentruth's Quantified Emissions Tokens (QETs) are fuel- or electricity-attribute certificates — not carbon credits, not offsets — verified to ISO 14064-3 reasonable assurance and retired on the EarnDLT registry to anchor a specific claim. They substantiate Scope 1 (combusted natural gas), Scope 2 (electricity), Scope 3 Category 3 (upstream fuel and energy-related activities), and residual neutralization (durable CDR) under the GHG Protocol Corporate Standard and the SBTi Corporate Net-Zero Standard. They do not transfer Scope 1 emissions between parties.
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Book a Call With the Corporate-Buyer Team
Request a demo and we'll walk a sample corporate decarbonization stack across Scope 1, Scope 2, Scope 3 Category 3, and residual neutralization — and the framework-aligned exports your reporting team will file.
What Corporate Gas Decarbonization Actually Needs From a Registry
Corporate gas decarbonization at scale demands more than annual carbon accounting. It requires registry-grade attestation that holds up under reasonable assurance — across procurement, retirement, and indefinite audit. The benchmark is portability: one verified record substantiating Scope 1, Scope 2, and Scope 3 disclosures across SBTi, GHG Protocol, SB 253, CSRD, and IFRS S2 without parallel reporting infrastructure.
The question is no longer whether to pursue corporate gas decarbonization.
The active questions are operational:
- Are the inputs feeding our disclosure defensible under reasonable assurance?
- Can the same data substantiate SBTi, GHG Protocol, CSRD ESRS E1, IFRS S2, SB 253, and TCR — without parallel reporting infrastructure?
- Does our procurement integrity story hold up to investor and customer scrutiny, indefinitely?
- Can we operate at the scale we actually procure without rebuilding the data pipeline every cycle?
A registry-grade attestation answers all four.
A self-attested spreadsheet does not. A single-pollutant certificate without provenance does not. A generic offset does not.
Where QETs Fit in a Corporate Gas Decarbonization Stack
QETs feed two distinct layers of a credible corporate gas decarbonization stack: abatement (covering Scope 1, Scope 2, and Scope 3) and neutralization at residuals (for emissions that cannot be abated through value-chain reductions). Three instruments substantiate abatement-side claims — QET-NG, QET-RNG, QET-ELEC — plus GasTrace for Scope 3 Category 3. One instrument, QET-CCS, sits in the residuals layer.
The architecture is deliberate: abatement first, neutralization at residuals only for the small share that cannot be abated.
The QET Family Mapped to Scopes 1 / 2 / 3 / Residuals
| Layer | Scope coverage | Instrument | What it substantiates |
|---|---|---|---|
| Abatement | Scope 1 (direct combustion) | QET-NG | Verified producer- and pathway-specific multi-pollutant CI for combusted natural gas |
| Abatement | Scope 1 (fuel substitution) and Scope 3 Cat 3 | QET-RNG | Verified renewable natural gas with biogenic carve-out |
| Abatement | Scope 2 (market-based) | QET-ELEC | Hourly-granular electricity attribute |
| Abatement | Scope 3 Category 3 (EAC product) | GasTrace | Verified Scope 3 Category 3 EACs at the GREET default tier (free) |
| Neutralization at residuals | Long-term net-zero residuals | QET-CCS | Verified CCS attributes for the residual share that cannot be abated |
QET-NG · QET-RNG · QET-ELEC · GasTrace · QET-CCS
Scope 1 emissions reduction comes first. Scope 2 alongside it. Scope 3 next. Residual neutralization last — and only for what cannot be abated.
Each layer connects to specific lines on the corporate disclosure.
Scope 1 Emissions Reduction: QET-NG and QET-RNG
Scope 1 emissions reduction at large-corporate scale is primarily a natural gas problem, not an offset problem. QET-NG substantiates one MMBtu of combusted natural gas with a verified, multi-pollutant carbon intensity tied to a specific producer and pathway. QET-RNG extends the same architecture to renewable natural gas with the biogenic carve-out required under GHG Protocol guidance.
For most large corporates with material operations, Scope 1 is dominated by combusted natural gas:
- boilers,
- process heat,
- cogeneration,
- and on-site generation.
Two instruments touch the Scope 1 line.
QET-NG represents one MMBtu of natural gas with:
- a verified multi-pollutant carbon intensity (CH₄, CO₂, N₂O converted via IPCC AR5 GWP100: CH₄ = 28, N₂O = 265),
- tied to a specific producer-and-pathway combination,
- replacing national or basin-average emission factors with verified primary data,
- site-specific where available,
- with the data hierarchy tier recorded as a token attribute.
QET-RNG represents one MMBtu of RNG thermal energy with:
- a verified CI in kgCO₂e/MMBtu (well-to-pipeline-injection scope),
- biogenic CO₂ preserved as a separate carve-out per GHG Protocol biogenic guidance,
- CH₄ and N₂O retained in the main inventory.
The crucial distinction for corporate buyers:
A QET retirement does not transfer Scope 1 emissions.
The producer's Scope 1 inventory stays the producer's.
The buyer's retirement of the token sharpens the inputs to its own Scope 1 number — which is the input the disclosure consumes and the verifier audits. That is the framework distinction auditors and investor-relations teams will test.
Scope 2 Market-Based Accounting: QET-ELEC
Scope 2 emissions reporting at credible scale runs on the GHG Protocol Scope 2 Guidance contractual-instrument quality criteria, which is where market-based accounting lives. QET-ELEC is the electricity-attribute certificate Greentruth issues for that method — with hourly granularity, geography, methodology version, and verifier of record on each token, retired irrevocably on-chain. It is the instrument 24/7 carbon-free electricity strategies and post-annual-REC-matching programs require.
Each electricity attribute record carries:
- hourly generation attributes,
- grid region,
- methodology lineage,
- verifier of record,
- and irrevocable retirement history.
For corporate buyers running ambitious electricity strategies — 24/7 carbon-free electricity (CFE), hourly matching, or any program past annual REC matching — QET-ELEC carries the per-hour, per-grid attribute structure those strategies require.
Location-based Scope 2 reporting continues in parallel.
QET-ELEC sharpens the market-based number.
Scope 3 Category 3 Reporting: GasTrace
For most in-scope SB 253 reporters and CSRD-bound corporates, Scope 3 Category 3 (Fuel- and Energy-Related Activities) is where the natural-gas footprint lives — and where the largest defensibility gap sits. GasTrace closes that gap with location-specific pathway resolution, stage-decomposed emissions, and machine-readable Scope 3 Category 3 EACs for any U.S. delivery location. At the GREET default tier, the workflow is free.
Without per-location, per-pathway data, the Cat 3 number defaults to a national or basin-average emission factor.
That default thins out fast under reasonable assurance.
GasTrace replaces it with:
- Free at the GREET default tier for every U.S. delivery location.
- Decomposed by emission stage — Production, Gathering & Boosting, Processing, Transmission, Storage, Distribution.
- Validated pipeline pathway across EarnDLT's 32,000-segment Lower-48 network model.
- Path status flags surfaced before purchase — ISO 14064-3 Validated, Exceeds Limit, Error Corrected, Path Not Found.
- Producer-specific upgrades available via QET-NG and QET-RNG where the buyer wants to sharpen specific stages.
EU coverage launches in H2 2026 with an analogous EU pipeline network model and CSRD ESRS E1 reporting templates.
The Residuals Layer: QET-CCS
Under credible long-term net-zero frameworks — the SBTi Corporate Net-Zero Standard most prominently — the residual share of emissions that cannot be abated through value-chain reductions is neutralized with durable carbon dioxide removal. Under SBTi CNZS V1.3, that residual share is capped at ≤10% of base-year emissions. QET-CCS is the registry-grade instrument for that layer, carrying project provenance, storage permanence, ISO 14064-3 verification, and irrevocable on-chain retirement.
QET-CCS specifically carries:
- Project provenance — the specific CCS project, operator, and geological storage formation.
- Storage permanence attribute — durability classification under the underlying standard, with monitoring obligations and any reversal-risk treatments recorded.
- Verifier of record — ISO 14064-3 reasonable-assurance verification by an accredited third party.
- Retirement record — a single, irrevocable, on-chain retirement that anchors the neutralization claim to a specific reporting period.
The architecture is deliberate.
Corporate gas decarbonization runs abatement-first. QET-CCS is for what's left after the abatement work is done.
It does not substitute for the deep value-chain reductions or the Scope 1 emissions reduction the framework requires.
How QETs Feed the Disclosure Frameworks Corporate Teams File
A single QET feeds multiple framework-aligned exports from the same underlying record, which is the operational basis for claims integrity at scale. The same token can substantiate SBTi reporting, GHG Protocol Corporate Standard disclosures, California SB 253 mandatory filings, CSRD ESRS E1 obligations, and IFRS S2 international reporting — without parallel infrastructure. That portability is the reason corporate ESG procurement teams adopt registry-grade attestation rather than maintaining one-off certificates per framework.
The same QET feeds:
- GHG Protocol Corporate Standard — the universal Scope 1 / 2 / 3 accounting backbone.
- GHG Protocol Scope 2 Guidance — market-based method for QET-ELEC retirements.
- GHG Protocol Scope 3 Standard — especially Category 3 for QET-NG, QET-RNG, and GasTrace.
- SBTi Corporate Net-Zero Standard — abatement and neutralization layers under CNZS V1.3 (V2.0 in consultation through Nov 2025).
- California SB 253 — mandatory Scope 1, Scope 2, and (later) Scope 3 disclosure.
- California SB 261 — Climate-Related Financial Risk disclosure at a lower revenue threshold.
- CSRD ESRS E1 — EU mandatory disclosure for in-scope entities.
- IFRS S2 — ISSB-aligned international reporting.
- The Climate Registry General Reporting Protocol — voluntary US sub-national reporting (most developed alignment on QET-RNG: GRP §D-7, §D-15, §B-7).
One record. Multiple frameworks. No parallel infrastructure.
Integrating QETs Into Your Existing ESG Software Stack
QETs are designed to flow into existing ESG accounting platforms — Watershed, Persefoni, Sweep, Workiva, and equivalent disclosure infrastructure — rather than replace them. The Machine-Ready API exposes REST endpoints, webhook events, and a schema-first attribute model so the platform consuming QET lifecycle data knows exactly what attributes to expect. QET adoption is additive to the existing ESG software stack, not disruptive.
The integration surface specifically:
- REST endpoints for mint, transfer, acquire, and retire operations across the QET family.
- Schema-first attribute model so the platform consuming QET data knows exactly what attributes to expect.
- Hedera Hashgraph anchoring via the EarnDLT registry — the integration writes audit-trail records the customer's platform doesn't have to construct itself.
- Webhook events on QET lifecycle so the customer's platform stays current without polling.
The reporting workflow stays intact. The underlying evidence becomes stronger. The audit trail gets longer.
What QETs Do NOT Do for Corporate Buyers
A QET is not a carbon credit, not an offset, and does not transfer Scope 1 emissions between parties. It is a fuel- or electricity-attribute certificate (or, for QET-CCS, a CCS attribute certificate). It substantiates a specific verified physical unit of fuel, electricity, or stored CO₂ — and the buyer's retirement anchors a specific claim against the buyer's own inventory. A corporate buyer that retires QETs sharpens the inputs to its Scope 1, Scope 2, and Scope 3 numbers without netting those numbers against an unrelated tonne of CO₂e by some other route.
Three corollaries sustainability and procurement teams most often need to internalize:
- A QET is not a substitute for abatement. It feeds the abatement layer of the stack (and, for QET-CCS, the neutralization layer); it does not replace the operational Scope 1 emissions reduction and value-chain decarbonization work the framework requires.
- A QET retirement is not a target. The target is the SBTi-validated trajectory the company is on; QETs are inputs that substantiate progress on the corporate gas decarbonization journey.
- Voluntary carbon market integrity initiatives that govern credits and offsets do not govern QETs. The integrity frame is the framework-specific anchor — GHG Protocol Scope 2 Quality Criteria, CNZS criteria, GRP sections, ISO 14064-3 reasonable assurance.
That distinction is the difference between a substantiation that holds up and one that does not.
The Shift Happening Beneath the Market
Corporate disclosure is moving from annual artifacts produced after the fact to machine-readable operational infrastructure produced at the point of procurement. Three forces are driving the shift: assurance escalation from limited to reasonable across SB 253, CSRD, and IFRS S2; investor and customer scrutiny of claims integrity that no longer accepts averaged inputs; and framework convergence on per-unit attribute substantiation as the credible accounting standard. The corporates that build on the new architecture early avoid the rebuilding cost when reasonable assurance becomes universal.
Greentruth is built for that environment.
Walk Through a Corporate Decarbonization Stack
Frequently Asked Questions
Corporate gas decarbonization at credible disclosure scale needs abatement-side instruments, not offsets. QETs are fuel- or electricity-attribute certificates that sharpen the inputs to the buyer's own Scope 1, Scope 2, and Scope 3 numbers — they are not offsets. Under credible disclosure frameworks (GHG Protocol, SBTi, SB 253, CSRD), abatement instruments and offsets are treated differently. QETs sit on the abatement side of that line — except QET-CCS, which sits in the neutralization-at-residuals layer.
Request a Demo
Book a Call With the Corporate-Buyer Team
Request a demo and we will walk a sample stack end-to-end — Scope 1 via QET-NG and QET-RNG, Scope 2 via QET-ELEC, Scope 3 Category 3 via GasTrace, residuals via QET-CCS, and framework-aligned exports — all from the same QET records.