THE Kuda Laut passenger ship passing Mentawai Strait was hit by huge waves. The vessel was rocking, causing panic among passengers. For Zamrisyaf, one of those on board the Padang-bound ship, the event just triggered a brilliant idea. He thought, could the massive waves produce electrical energy?

He held onto the idea for quite a while. One day, the planning employee of the State Electricity Company (PLN) of West Sumatra was assigned to Jakarta