Water turbines. I find those interesting my problem is I don't have running water to turn one here at home.
However...about 250 miles away in Arkansas I have a bit of land with some running water.
How small do they make those things Tab? Are there some 25-100 amp models suitable for home?
If you have running water with enough drop you can make a set up where a 55gal drum is at the low end and it contains a float which will rise as the drum fills with water. At the top of it's travel, the float trips a level that opens a drain at the bottom of the drum allowing the float to descend and flip the drain close lever. (think of how a toilet tank works). This action can be use to pump water to a raised above ground tank which then provideds "running" water from a tap.
I was also thinking about a wind up light....similar to how the Grandfather clock weight generates the juice to run the LED bulb.
Also, does anyone know if LED bulbs and the generator powered by the clock weight or a wind up spring are damaged by EMP? And if so, can they be protected in a small enough package to be practical?