Oakland Port Power Hits 84% Clean Supply
Tenants at the Seaport and Oakland airport receive electricity from a utility now reporting a cleaner mix than the California average.
Updated on Nov. 3, 2026 in Utilities
The Port of Oakland reported that 84% of the electricity it received in 2025 came from renewable and zero-carbon sources, according to its utility, Port Public Power. The Board of Commissioners also approved the Power Source Disclosure Report and Power Content Label for submission to the California Energy Commission.
Why it matters
For operators leasing space at the Seaport or Oakland San Francisco Bay Airport, the cleaner supply signals how a public utility's power mix may evolve as tenant electrification grows. Port Public Power expects demand to rise four- to five-fold over five years, making its supply strategy relevant to businesses planning equipment or fleet changes.
The Port's 2025 supply reached 84% renewable and zero-carbon electricity, with renewables at 61% against a 46% average for California utilities. Its greenhouse gas intensity was 186 pounds of CO2 equivalent per megawatt-hour, roughly half the 384-pound average for California utilities, though future supply mix beyond 2025 remains unspecified.
The players
Port of Oakland
A public port authority operating the Seaport and Oakland San Francisco Bay Airport, overseeing tenant utilities and infrastructure across the city.
Port Public Power
A publicly owned utility serving Port tenants and facilities and a member of the Northern California Power Agency.
California Energy Commission
The state agency that receives utility power source disclosures and regulates energy reporting for California electricity providers.
Trolley Pass Project LLC
A developer and counterparty to the Port's 20-year battery energy storage service agreement at a San Bernardino County facility.
The details
Port Public Power, a publicly owned utility and member of the Northern California Power Agency, supplies electricity to Port tenants and facilities. Its 2025 supply was built from geothermal energy, the largest renewable source, along with 21% from large hydroelectric power and other zero-carbon market purchases. In 2025 the Board also approved a 20-year Energy Storage Service Agreement with Trolley Pass Project LLC for 4 megawatts of capacity at a battery facility in San Bernardino County.
Timeline
2025: Port delivered 84% renewable and zero-carbon electricity to tenants and facilities.
2025: Board approved the 20-year battery energy storage agreement with Trolley Pass Project LLC.
October 22: Board approved the Power Source Disclosure Report and Power Content Label.
Over the next five years: Port Public Power expects electricity demand to grow four- to five-fold.
Market Landscape
The Port's 61% renewable share and 186-pound emissions intensity sit well above the 46% renewable average and 384-pound intensity reported for California utilities under the state's Power Source Disclosure Program. The disclosure filing ties the Port's supply to a state reporting regime rather than a voluntary commitment.
Businesses leasing space at Port facilities should factor in that the utility supplying their power is reporting a cleaner mix, which may matter for sustainability reporting. Operators planning electrification or fleet changes should track Port Public Power's growing demand, which the utility expects to rise four- to five-fold over five years.
The takeaway
Operators with Port tenancy should watch whether Port Public Power's supply mix keeps improving as demand climbs toward 100 megawatts. Reviewing future Power Content Label filings with the California Energy Commission will show whether the cleaner profile holds.
Further reading
For related context on how public utilities are shifting their power mix, see Utilities coverage in Oakland.
Source note: This article includes information reported by American Journal of Transportation | AJOT | 1-800-599-6358.
