Science 2.0 Is The Micropower Revolution Here? There is no shortage of shouting and dire warnings about the state of the climate and our need to phase out fossil fuels. But there is a more silent revolution happening too — in micropower. Small-scale electricity generation is slowly replacing big fossil-fuel driven power plants, which are currently the world’s single largest contributor to greenhouse gas emissions. These micro-electricity producers are relatively small scale, inexpensive, and most importantly, produce little to no carbon emissions. Last year micropower contributed to around a quarter of the world’s energy, up from 10% in 2000.