A Clean Energy Fair in Waimanalo offers a chance to learn more about alternative energy solutions.

The public event will feature presentations on sea water air conditioning, as well as solar, water, wave and wind energy.

Experts on clean energy will be on-hand to answer questions after the presentations and at their informational booths.

The state Department of Business, Economic Development and Tourism will also give a talk.

The free fair will be held 8:30 a.m. to noon on March 31 at the Hawaii National Guard Training Center at Bellows Air Force Station.