For example, my new solar panels I'm having installed will have 10% more solar panel production than my current ones bought a year ago and be only 4% more in cost (costing 6% less per watt than a year ago). My new batteries stay the same cost for the same performance as the current ones bought a year ago. That's even with the crazy inflation and supply chain issues and Brandon making everything else cost more.
My home solar batteries are guaranteed to last 19 years (albeit operating at 50% on the final year) and solar panels 25 years (operating at 70%). The BEV batteries are now costing about $5K to $10K to replace every 10 years (as opposed to me replacing my old used gas cars every 7 years for $8K to $10K).
Hydrogen combustion cars are a fantasy. To my knowledge no one is making them. So if you get a hydrogen car it's a hydrogen fuel cell powered EV. I like an HEV over a BEV (battery electric vehicle) except for one thing: I have no means to produce hydrogen on my own without losing 50% of the energy it takes to power an electrolyzer. That would still make me dependent on government policies for all of my mobility as I would have to buy my hydrogen from someone. Not so with a strong solar system and BEV. I'll buy only about 10% of my power from the power company, all while living comfortably in the hot Alabama weather (read: lots of power consumed to keep my house at 68 degrees) in my two-story house with a hot tub.
I respectfully disagree with solar replacement costs.
Best hope for no hail storms or you will end up with mercury covered roof and ground and many other toxins ever see what it takes to do a clean up job of it or see the problems with trying to recycle them they not worth the cost.
You can’t live off the grid unless you can pay the cost.