or, having a powerful enough perennial stream running through your property,  you could dam it in segments and have more than one water wheel charging a group of batteries each, that you manually replace,.. or having a water wheel powered water pump located at a more powerful part of the stream up river, this main pump could then pump water down several channels, a waterwheel at the end of each channel, running side by side under big waterfall, so that you can have your electricity generating waterwheels close to each other, and close to your house, where you will be using the electricity,.. or something, hmm