There are definitely portable solar panels and battery banks, I use them for hiking. No reason you couldn’t at least use them to charge and power various household devices. A wind generator probably also exists but I haven’t looked into those because they are not very packable. I have no brand recommendations: Mine are all shitty no-name brands, but they work enough to get me an OKish charge, just don’t count on the panels being up to spec if you’re cheaping out.
You can also look into solar water heaters: They can be as simple as a bladder you leave out in the sun or as sophisticated as a dedicated solar waterheater but obviously you wouldn’t be able to hook it into the actual plumbing of the house (no reason you couldn’t just use a portable container to hold it or even a camping shower.
There are definitely portable solar panels and battery banks, I use them for hiking. No reason you couldn’t at least use them to charge and power various household devices. A wind generator probably also exists but I haven’t looked into those because they are not very packable. I have no brand recommendations: Mine are all shitty no-name brands, but they work enough to get me an OKish charge, just don’t count on the panels being up to spec if you’re cheaping out.
You can also look into solar water heaters: They can be as simple as a bladder you leave out in the sun or as sophisticated as a dedicated solar waterheater but obviously you wouldn’t be able to hook it into the actual plumbing of the house (no reason you couldn’t just use a portable container to hold it or even a camping shower.