It says its applications for electrical power are limited by efficiencies in conversion. It's primary application would be be heating and only if underground infrastructure was in place.
Im no fan of major facilities being used to support vast swath of the population. They become single points of failure or attack and leave us vulnerable.
The hardest part of destroying America used to be our self sufficiency. Any victory an enemy had at controlling American territory would be small. Can't disrupt food supply when there are millions of farms supplying locally.
Tech needs to be scaled down to let individual have more control over their own fates. These Megalithic designs are counter productive to liberty.