Green Gas And Renewable Gas Guarantees Of Origin (RGGOS)

C-Zero works with Green Gas producers such as AD operators looking for a route to market for the certificates they generate.

We also help companies navigate what can be an opaque marketplace providing transparency and traceability.

“The C-Zero process ensures that buyers and sellers have certainty on delivery and an auditable system for compliance and reporting purposes.”

Bruce Brown, C-Zero

Every kWh of green gas is tagged electronically with a unique identifier known as a Renewable Gas Guarantee of Origin (RGGO).

For each kWh of gas produced, this identifier contains information about where, when, and how.

When consumers buy green gas, the RGGO guarantees that the gas is authentic and not previously sold to anyone else.

Biogas is methane generated from:

Decomposition of wet organic waste. Anaerobic digesters at:

Gas collection systems at landfills

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