The Port of Oakland has announced that 84% of the electricity delivered in 2025 by its publicly owned utility, Port Public Power, to port tenants and facilities came from renewable and zero-carbon sources.
The Board of Commissioners approved the annual Power Source Disclosure Report and Power Content Label for submission to the California Energy Commission at its October 22 meeting.
Renewable resources made up 61% of the supply, against a 46% average for California utilities, with geothermal the largest source, followed by solar, biomass and biogas, and eligible small hydroelectric power.
A further 21% came from large hydroelectric power, and other zero-carbon market purchases brought the combined share to 84%.
The supply’s greenhouse gas intensity was 186 pounds of carbon dioxide equivalent per megawatt-hour, less than half the 384 pounds of the average California utility.
Port Public Power expects demand on its system to grow four- to five-fold over the next five years as tenants electrify their operations, potentially reaching 100 megawatts.
The port continues to modernise, expand and replace ageing electrical infrastructure to support this.
In 2025 the Board approved a 20-year Energy Storage Service Agreement with Trolley Pass Project LLC, giving the port 4 megawatts of capacity at a battery storage facility in San Bernardino County, which can help it make better use of solar power and reduce reliance on market purchases.
The port’s efforts support California’s Senate Bill 100 goal of 100 percent clean electricity by 2045, and as a member of the Northern California Power Agency it works with other public power utilities to secure reliable, affordable and sustainable supply.
Andre Basler, Director of Utilities at the Port of Oakland, said that as more of the port runs on electricity, the aim is to keep that electricity clean, reliable and affordable, so tenants electrifying their trucks and equipment move onto one of the cleanest power supplies in California, and the port intends to keep making it cleaner as demand grows.
