The enormous state has some of the highest insolation in the Western world, vast tracts of suitable land and massive electricity demand from a growing population and a booming industrial economy. Yet at the end of last year, only 379MW of solar had been switched on — about half that of tiny, heavily populated Massachusetts.

This is especially surprising when you realise that Texas has an installed wind capacity of more than 15GW, which supplied 10% of the state’s energy last year.

However,