Solar Energy, Renewables, Economics, Sustainability, Fossil Fuels.
use over the last two centuries. This combines all energy forms used by the industrial world, coal, oil, natural gas, nuclear, wood, new forms of biomass, and the PV and WT renewables. From very little, next to nothing, in 1800, the surge has now reached in the order of 19TW-year (Terawatt-year,