Nearly 67% of the Port of Oakland Utility’s power comes from carbon-free energy sources, the Northern California seaport announced Jan. 12. The Port Utility supplied nearly half of its power from renewable resources, higher than California’s average of 33.6%, according to the 2021 Port Utility Green Power Portfolio, which is annually submitted to the California Energy Commission. Of that 49.9%, 21.9% came from solar energy, 18.4% from wind power and 9.4% from biomass and biowaste (9.4%). Large hydroelectric sources also accounted for an additional 8.7% of energy and solar added 8.3%, for a total of 66.9% in green power, the…