Carbon credit purchasing consortium Frontier, which counts Google and Meta as founding members, has signed a deal with German biogas carbon capture firm Reverion to remove 96,000 tons of CO2 between 2027 and 2030.

As part of the deal, Frontier buyers will pay Reverion $41 million.

Reverion’s carbon removal process uses solid oxide fuel cells (SOFCs) to convert the methane generated during biogas production into electricity, with CO2 in the form of steam as the only byproduct. Following this, the CO2 stream is then liquefied and transported for permanent storage in geological formations.

“Reverion’s approach is a smart upgrade to a well-known industrial process—turning biogas waste into clean power while capturing all the carbon, not just part of it. With more than 120,000 biogas sites worldwide, this approach could unlock hundreds of millions of tons of carbon removal while also improving farmer operations,” said Hannah Bebbington Valori, head of Deployment, Frontier.

According to Reverion, its process can capture all the carbon in biogas, not just the CO2, effectively doubling its removal potential. In addition, it is able to deliver a 74 percent fuel-to-electricity conversion efficiency.

The system can switch modes to produce hydrogen when electricity prices are low, enabling farmers to generate revenue from hydrogen production during times of peak solar and wind power.

“This offtake with Frontier buyers allows us to demonstrate that our approach to carbon removal can be economically viable on top of driving climate impact,” said Stephan Herrmann, co-founder and CEO, Reverion.

“Our technology converts biogas to electricity at 74 percent efficiency while capturing carbon for permanent storage. We’re focused on scaling this solution globally.”

Reverion claims its technology is poised for rapid expansion amid surging market demand, with an orderbook of 60 signed pre-orders and 120 letters of intent.

Frontier has signed several deals over the past year.

In July, the consortium inked a deal with bioenergy with carbon capture and storage (BECCS) firm Arbor for 116,000 tons of carbon removal credits.

As part of the deal, Frontier will pay Arbor $41m, with the credits set to be delivered between 2028 and 2030.

Before this, in March, the consortium signed a $33m deal with enhanced rock weathering firm Eion for the removal of 78,707 tons of CO2 between 2027 and 2030.