NorCal Carbon Sequestration

The Montezuma NorCal Carbon Sequestration Hub, developed by Montezuma Carbon LLC, is a CO₂ storage project located near Collinsville, Solano County, California, on the 3,200-acre Montezuma Wetlands property. The project is designed to collect and sequester about 1 million metric tons of CO₂ per year initially, with potential to expand to 3–8 million tons annually. Captured CO₂ from nearby emitters such as PG&E’s Gateway Station and Calpine’s Delta Energy and Los Medanos power plants will be transported via pipeline and/or barge to Montezuma’s Sacramento River dock and then to the injection site. Injection will occur in the Anderson Sandstone at depths of 11,300–12,600 feet, sealed by the Meganos/Upper Martinez Shale above and the Lower Martinez Shale below. The site has an estimated total storage capacity of 80–250 million metric tons of CO₂, depending on injection rates and reservoir properties. Plans call for three or more injection wells, with potential additional use of the Domengine, Hamilton, and Martinez formations.