Hawaiian Electric Co. said a 27.6-megawatt solar project in Waianae will be in operation Dec. 15.

HECO said the completion of the facility would make the Waianae solar project the state’s largest solar energy facility — tripling the amount of utility scale solar connected to Oahu’s grid.

Eurus Energy America is developing the facility on approximately 200 acres of land in West Oahu. When the project is in operation, Eurus will own and manage the project and will sell energy to HECO at a rate of about 14.5 cents per kilowatt-hour.

The state Public Utilities Commission approved the contract between Eurus and HECO last year. The project broke ground in March.