Re: Cold reserve NPPs?
There is an exotic option of making hydrogen from electrolysis with the spare power from Nuclear plants in off-peak hours. You either make several tons of gas, or use huge lithium batteries.
No matter if you have nowhere to store it, you can convert it back into clean water or vent it. Hydrogen cells become very interesting all of a sudden if you have plenty of power and nowhere to dump it. Add in the compressors, and you are spending a heck lot of energy to shove pure hydrogen in a tank.
Nothing prevents you from burning hydrogen in an ICE too.