Hawai'i Volcanoes National Park is receiving a nearly $1 million grant to test the use of hydrogen-powered hybrid buses for shuttle service.

Interior Secretary Ken Salazar yesterday said the project will reduce carbon emissions and fuel costs. He said it will also protect the park's fragile resources.

The test program will run for two years.

In total, the National Park Service and its partners will contribute $2.4 million to the project.

The state of Hawai'i, the Hawai'i Natural Energy Institute and Hawaiian Electric Co. are among the project's partners.