German renewable energy engineers Transsolar installed the solar panels on the roof and have designed a seawater heat exchange system that will provide additional cooling and lead to 80 % of the building 's energy originating from renewable sources . Expo 2012 in South Korea is site of cutting-edge experimental buildings . Korea pavilion is hi-tech and carbon-negative . Comment:
Expo 2012 in South Korea is site of cutting-edge experimental buildings . Korea pavilion is hi-tech and carbon-negative . Comment: