When it comes to energy the efficiency of a generation system is pretty much meaningless metric. Price per kilowatt hour is what rules the roost. Renewables particularly solar have become the cheapest form of electricity in history. This is driving demand for storage which is driving exponential cost reductions in that field as well.

Grid scale renewable + storage installations are now becoming competitive with natural gas. Coal is an obsolete energy source. That people in this administration are trying to weelend at Bernie's this corpse of an industry gives me serious doubts about the praise you lap on them.