Consider the time frame for this, as well. Radical alteration of the power grid will take at least a decade, probably multiple decades. Weaning it off coal, gas

Consider the time frame for this, as well. Radical alteration of the power grid will take at least a decade, probably multiple decades. Weaning it off coal, gas, and diesel is an enormous undertaking, even if it's technically feasible. Pilot programs now, even if they aren't immediately cost-effective, greatly reduce the risks of future change, when the cost equation is different. They'll shorten the timeline, reducing the long-term costs.