Four public high schools will receive rooftop solar panels in the first awarding of a state Power Purchase Agreement contract.

The state Department of Education said today that Hawaii Pacific Solar will install photovoltaic systems at Kaimuki High, Aiea High, Waianae High and Kahuku High and Intermediate. Construction is expected to be completed by December.

Hawaii Pacific Solar will install the systems at no cost to the DOE. Once the systems are operational, the DOE will buy power from Hawaii Pacific Solar.

The DOE says it will save at least $1 million in energy costs over the course of the 20-year contract.

The DOE said the schools were chosen through various criteria, including substantial electrical use, outstanding roof repairs and maximum sunshine.

The project starts a two-year DOE plan to bring solar power to public schools throughout the state under Power Purchase Agreement contracts.

The next phase is planned for Kauai later this year, followed by the Big Island, Maui and the remainder of schools on Oahu.