Renewable Energy

2020

Renewables Vs Fossils, 2016

The expansion of non-fossil energy sources such as nuclear and hydroelectricity may be limited in the future because of availability, affordability, and acceptability reasons. There are however other non-fossil energy sources, some of which have been used for millennia by humans, principally biomass (both traditional and modern), wind (for mechanical and electrical applications), and solar (for heating and electricity). The importance of biomass cannot be underemphasized: in 2014, it met 10% of the world’s primary energy demand and will increase to 11% in 2040 – in both cases, more than nuclear and hydroelectricity combined. Over the same period, wind and solar are expected to increase from about 1% to 6%.

2010