The capacity of Heirloom’s limestone-based technology to capture CO2 from the air has gone from 1 kilogram of CO2 to up to one million, or 1000 metric tons, in just over two years. We owe it to every climate vulnerable citizen to continue to deploy our technology at the urgent pace required to reach billion-ton scale and beyond in time to stop the worst of climate change.
Fully powered by renewable energy – supplied locally by Ava Community Energy – and constructed with union labor, our Tracy facility has been operational for nearly 1,000 hours and is actively capturing atmospheric CO2, which will be permanently sequestered in concrete through a partnership with CarbonCure Technologies. The facility has a capture capacity of up to 1,000 tons of CO2 per year and will deliver net removals to early, catalytic buyers of Heirloom’s CO2 removal credits, including Microsoft, Stripe, Shopify, and Klarna.
By using easy-to-source materials like limestone, harnessing the power of algorithms to increase the capture capacity of that material, and scaling with modularity, Heirloom’s technology represents one of the lowest cost pathways to permanent CO2 removal. The company’s goal is to remove 1 billion tons of CO2 from the atmosphere by 2035 – a figure which represents 20% of today’s annual U.S. emissions and 10% of global carbon removal needed annually by 2050.