Isometric to verify carbon removal for Arbor and Microsoft

On September 18th, ‍Arbor Energy, the first supplier signed on to have credits issued against Isometric’s Biogenic Carbon Capture and Storage (Bio-CCS) protocol, announced a multi-year agreement to deliver 25,000 tonnes of carbon dioxide removal (CDR) to Microsoft. 

All CDR delivered to Microsoft under this agreement, and the corresponding credits, will be verified and issued by Isometric. Deliveries will start in 2028 with 5,000 tonnes to be delivered per year.

In Bio-CCS, sustainably sourced biomass—such as waste from agriculture or forest management—powers an industrial process that generates carbon dioxide. This carbon dioxide is separated from other components of biomass, captured and durably stored deep underground. Isometric’s Bio-CCS Protocol provides detailed, robust requirements for how suppliers should sustainably source biomass.

Arbor uses technology that produces low cost and scalable bioenergy that also captures and locks away carbon dioxide for thousands of years. By Arbor’s estimation, the CDR delivered under this agreement will also generate over 5 megawatts of clean baseload electricity through their modular power system.