UK firm invests in Cuba 'green energy'
9 December 2012 Last updated at 09:07 GMT
Cuba's once thriving sugar industry has begun opening up to foreign investment for the first time since the revolution.
British firm Havana Energy has become the first to sign a joint venture and will build a green power plant at one of the country's biggest sugar mills.
The project will also attempt to harvest a much-hated weed to use as biofuel.
Sarah Rainsford reports from central Cuba.