bert kohlmann heads the center for research and development of renewable energy.ess than ten years, costa rica plans to meet all its electricity needs with renewables. >> costa rica has many excellent options when it comes renewable energy. we have solar energy, geothermal energy, biomass, water power, and wind power. we have all of that here in costa rica. >> the lectures are in english. around two-thirds of the students come from abroad. >> i come from nicaragua. my name is francisco leiva, and i think with this course i can use all the knowledge to use in my region, because we have a lot of wind energy and also solar energy. >> the students go wherever there's environmental technology -- even on top of a roof. this solar energy it heats te >> what i have here is a hand-held infrared thermometer. so if you hold that tohe collector and press the button, than you can read, what the temperature of the collector is at the moment. >> it's registering 35 degrees celsius. the entire campus maintains high environmental standards. every newcomer, from students to profess