Is hydrogen as an alternative energy feasible (in Singapore preferrably, but in general will do)? It’s part of my school work, and MY STAND IS, IT IS FEASIBLE. Can someone give me some pointers? What should I state?

(may be broke/outdated!)
Is hydrogen as an alternative energy feasible (in Singapore preferrably, but in general will do)? It’s part of my school work, and MY STAND IS, IT IS FEASIBLE. Can someone give me some pointers? What should I state?