The electric grid is about to be transformed

In the turbine hall at Drax, a power plant in the English county of Yorkshire, sit six monsters of angular momentum. They are massive—2,800 tonnes each—and complex, composed of 28 turbine sub-assemblies. And they spin on their axes 3,000 times per minute. Place your hand on the blue metal casing around one of them and your whole body thrums in harmony. The hall’s floor hums a flattened A three octaves below middle C that numbs the soles of your feet.