The Port of Oakland has approved an $8.9 million deal to purchase solar power for the next 20 years. The port said its municipal utility will resell the electricity to tenants including those at Oakland International Airport and the seaport.

Under the agreement, the port will buy approximately 11,000-megawatt hours of electricity annually from a planned expansion of a solar farm located in Lancaster, California. The port said that’s about 35 percent of the renewable energy it needs by 2030 to meet California renewable portfolio standards requirements under Senate Bill 350.

The Port of Oakland operates its own electric utility. The utility purchases electricity and resells it to airport and seaport tenants.

The port said it will pay $39 per megawatt hour for the solar-generated electricity. According to the port, the solar farm expansion should go online in December 2020.

The Port of Oakland oversees the Oakland seaport, Oakland International Airport, and 20 miles of waterfront. Together with its business partners, the port supports more than 73,000 jobs in the region and nearly 827,000 jobs across the United States.