The island has way out-grown diesel gen-sets. It's time they built a proper power plant with traditional and uber reliable turbine-generators. With all the natural gas available in the Caribbean (Trinidad) they could build a gas fired plant that's also much cleaner than diesel. The maintenance and fuel savings alone would repay the cost on the investment in a very reasonable amount of time. Adding in some renewable energy sources like wind and solar couldn't hurt either, and they can really help with peak demand issues during the heat of the day.
Bonds can be sold to finance it, just as they did for the new airport. There are also several companies in the business of building power plants that will finance it themselves, build it and maintain it for the rights to sell the electricity, at a rate that's agreed to up front. Diesel-gen is a very expensive way to make power, so the island would likely see much improved reliability at a cheaper rate. Cleaner air too. <img src="http://www.traveltalkonline.com/forums/images/graemlins/handshake.gif" alt="" />