back in the mid 90's. I did a ton of research into solar power. I had just built a 3658 sqft 5bedroom, 3 bath house. Everything was totally electric. No wood, no gas. at that time, the solar panels, battery pack, inverters, phase converters, the whole nine yards was going to cost somewhere in the $13000 range. For that much money, I was supposed to be able to walk in, flip the switch and live just like being on the grid power. If i had spent the money back then, it would have paid for itself by now. I didnt and sold the house when the kids moved out. I dont know what a similar system would cost now, a lot more I would think.
My future home will be a timber frame or log frame structure. Where it will be built is on a south facing slope above a large stream. I intend to use that stream to power a generator. I will also use solar collectors to heat water and heat the house. The stream water temps adverage around 57F year round and I plan on heat exchangers to use that water to cool the house in the summer. I will have a wood furnace of some kind. I will also be hooked to the grid, but believe i can produce the biggest majority of the power I consume. The hydro system isnt that expensive to build, you just have to have the water to make it work. Solar collectors are easy to build and with proper sizing and enough storage, can provide a lot of heat. Solar panels are expensive and require lots of maintenance, and while i may incorporate a few in my plans, i will produce the majority of electricity from the hydro system