I guess we get some fundamentals wrong here. Wind and solar power need backup solutions to mitigate their intermittency. They are likely the worst possible solutions for disaster relief. When you have a disaster the last thing you need is a power source that is only available at certain hours a day and that needs a pretty large and strong grid to mitigate the flicker factor. How likely is it that the grid works just fine in such a situation? When you have a disaster, you bring the diesel gen-sets in.
A large portion of Texas experienced power loss from a severe storm this winter. The outage left individuals without access to heat, fresh food or technological devices. After this disaster, governmen