Libertarian/Conservative from a red state of Alabama here: In our southern states solar energy is very plentiful and particularly good since our largest home energy consumption is the A/C (more if it during the day, especially the long hot summer days). So even though there's still a need to supply power during intermittent times (as you correctly point out), the need is less so here in the south (which means we might be able to solve the problems on our own).
And for that I'm looking heavily personally (not into government mandating anything) putting solar onto my rooftop, buying a little bit of battery storage for nighttime, and supplement that with a home hydrogen electrolyzer/storage unit powered by electricity. On the days I get more solar than I use -- it charges the battery and runs the hydrogen electrolyzer. At times I using power without solar -- it'll pull some from battery and after that use the hydrogen gas to generate electricity. All can be done automatically.
Libertarian/Conservative from NH here.
Before you cover your roof with solar panels and batteries in your garage have you increased your insulation in your attic?
Have you gotten rid of old windows?
Old doors?
Do you have window shades on the south and west side of your house?
Do you have deciduous trees(trees with leaves) on the south and west side of your house?
My point is that all of the above will LOWER your energy needs by keeping your house cooler in the summer and warmer in the winter.
I would kindly suggest you look into the designs/characteristics of passive solar construction ideas. There are lots of little things you can do to save energy and tighten up your building envelope. Some things even as simple as caulking around doors and windows.
For example, just adding insulating drapes on the south side of the house and closing them during the summer months in the morning can greatly reduce your temperature gain during the day. Same idea in the winter. Except you close them at night to keep the heat in.
Heat rises. Therefore, you lose most of your heat through the ceiling in the winter and gain it through poor quality windows in the summer.
I’m very interested in what you are talking about. I don’t know anything about home brewed hydrogen. I’m going to have to jump on google I guess.