CMC-SF6 protocol · draft for pilots
Certify the destruction of SF₆ from high-voltage substations.
SF₆ insulates electrical switchgear. At end of life it is recovered, weighed and destroyed; each destruction becomes a certificate.
02Situation
An insulating gas with an extreme warming potential.
Among the gases with the highest GWP: 24,300 times CO₂ over 100 years (IPCC AR6). Per kilo collected, its value on carbon markets exceeds 20,000 times that of a kilo of CO₂.
High-voltage substationsSF₆ insulates live switchgear.
End of lifeDismantling and replacement of switchgear.
03Who gains
What each party gains.
One destruction, certified once, serves each party.
BuyersVerified avoided tonnes, bought one by one.
ContributorsThe value of each tonne destroyed goes to whoever produced it.
BeneficiariesThe organisation in whose name the certificate is retired.
FacilitiesDestruction attested at entry and exit.
04Alignment
Credible by construction.
References that auditors, regulators and financers already know.
- Verification
- ISO/IEC 17029
- ISO 14064-3
- Carbon method
- ISO 14064-2
- Global warming potentials
Data reusable in:Company scope 3 decarbonisation · GHG Protocol · CDP Climate Change · ESRS E1 · ISO 14064-1
05What we certify
One tonne of SF₆ destroyed, one certificate.
The certificate carries the mechanism « emission avoidance », not a removal.
- SF₆ mass recovered and weighed, per unit.
- Destruction in an eligible facility, attested.
- Conversion to tCO₂e by the SF₆ warming potential.
- One certificate per verified event.
06How it works
From stock to certificate.
The measurement plan is validated before the first destruction.
01RecoverExtract the gas without release to air.
02Weigh and traceMass and chain of custody, at every step.
03DestroyIrreversible destruction in an eligible facility.
04VerifyAn independent verifier checks. Veracity calculates, never validates.
07The measurement
Measuring what is destroyed.
Each destruction is proven by a document, not an estimate.
- Mass weighed at recovery, per unit or batch.
- Destruction certificate issued by the approved facility.
- Full chain of custody, from site to facility.
08Get started
Do you operate high-voltage substations?
Start with one unit: weigh it, have it destroyed, have it certified.
+Questions
Why a separate SF₆ protocol?
Because SF₆ insulates high-voltage substations: a different use from the refrigerants covered by CMC-ODSHFC.
Is this a removal credit?
No. The certificate carries the mechanism « emission avoidance ». It does not remove CO₂ from the atmosphere.
What is an avoided tonne of CO₂ equivalent?
The weight of gas destroyed, multiplied by its global warming potential, compared with the scenario where it would have been released.
Who verifies the destruction?
An accredited body, independent of Veracity (ISO/IEC 17029). Veracity's agent calculates and prepares the evidence; it never validates.
Is the protocol final?
It is a draft version, ready to be used in pilots.
Where do the GWP values come from?
IPCC Sixth Assessment Report (AR6), 100-year GWP: SF₆ at 24,300 times CO₂.