.
.
There’s the wind, water, and solar (WWS) vision promoted by a few academics, and then there’s economic and technical reality – with a seriously large chasm in between.

Contributed by Robert Lyman © 2017

A new paper prepared by the U.S. National Oceanic and Atmospheric Administration’s (NOAA) Earth System Laboratory and published in the Proceedings of the National Academy of Sciences (PNAS) is drawing attention in policy circles in the U.S. The paper critiques the claims of a study by Mark Jacobson et. al. that it is feasible, at low cost, to achieve 100% conversion of the U.S. electricity generation system to wind, hydroelectricity and solar energy by 2050 (the “WWS Vision”).

The authors of the critique include experts in the National Renewable Energy Laboratory, who could not be accused of being “climate sceptics”. Indeed, they have previously authored reports in which they concluded that an 80% decarbonisation of the U.S. electrical grid eventually could be achieved at “reasonable” cost, assuming that a broad suite of generation options and other technologies are employed. Their critique of the Jacobson…