Arbor, a carbon-negative power company, has announced an agreement with Microsoft to deliver 25,000 tons of high-quality, permanent carbon dioxide removal (CDR) starting in 2027. Under this agreement, Arbor will support Microsoft’s climate goals by providing 5,000 tons of carbon removal annually and generating 5MW of clean electricity – enough to power approximately 4,000 US homes each year. The electricity will be produced using organic waste as fuel, powering Arbor’s compact, modular system.
“This contract with Microsoft serves as a significant endorsement from one of the most influential and trusted leaders in the industry. Microsoft’s commitment to draw down their historical emissions by 2050 perfectly aligns with our mission to bring the planet back into balance with carbon-negative electricity and permanent carbon removal. This agreement underlines the promise of our technology and is another critical step in getting this project off the ground. Together, we’re not just powering the future—we are erasing the emissions of the past,” said Brad Hartwig, CEO of Arbor.
In parallel, Arbor has recently become the first company to have its carbon credits issued under a new Biogenic Carbon Capture and Sequestration (BCCS) protocol from Isometric, the most rigorous carbon removal registry. This agreement ensures that all carbon removal delivered to Microsoft will be transparently registered and verified by Isometric’s highly respected CO2 removal verification process, further validating Arbor’s technology.
Arbor’s system is built upon Bioenergy with Carbon Capture and Storage (BECCS) principles but enhanced with cutting-edge advancements in oxy-combustion and supercritical turbomachinery. These innovations allow Arbor’s system to be cheaper, faster to deploy, emissions-free, and modular—setting it apart from traditional power plants.
“The technical promise and modularity of Arbor’s system makes it a very compelling climate solution. Arbor has established a clear, actionable blueprint for simultaneously removing CO2 while producing clean electricity. We look forward to collaborating with the Arbor team on our path to carbon-negativity,” said Brian Marrs, Senior Director for Carbon Removal and Energy at Microsoft.
Arbor’s first facility, set to deliver credits to Microsoft, will sequester 75,000 tons of carbon annually, equivalent to removing 16,000 cars from the road while generating 5MW of clean electricity. By 2030, Arbor plans to scale up to produce 100MW of electricity and remove nearly two million tons of carbon per year, all while maintaining a cost below $100 per ton—a key to solving the clean energy and carbon removal challenges.
