Quotes About Power densities

I actually argue that renewables are worse than fossil fuels. It's a physical manifestation of lower power densities. More land, more materials, more mining, more metals, more waste.

More efficient photovoltaic cells would be most welcome because of their relatively high power densities: efficiencies close to twenty percent would translate to electricity generation rates between 20–40 W/m2, two orders of magnitude better than biomass conversion, and one better than most hydro and wind projects.

Just as the far higher power densities of coal made the industrial revolution possible, the far lower power densities of solar and wind would make today's high-energy, urbanized, and industrial civilization impossible. And, as we have seen, for some advocates of renewables, that has always been the goal.