Donkey power? Bit short of donkeys over here, will snakes and scorpoins suffice KP? We got plenty of both although no rats seen so far, either. Assume the snakes got em all. My cousin in the UK has a pig farm and they go on endlessly about their methane converter. I'll put you in touch if you like KP..
Yeah, we're scoping out the prices for sourcing from Blighty as well. To be honest, so far the quotes we had from far and wide, ie UK & Greece - Greece is cheaper so far, by quite a margin. I was amazed too. lol
There is a new flexible pv collector, but from what I can gather it's more suited to the type of application where you'd have a felt roof. I don't know why someone hasnt come up with a spherical one, or at least semi-spherical -- do away with the need for tracking devices then. That said, I suppose given the flexi stuff, it's just a matter of time.
Best one I've seen to date was a completely independent array - panels, batteries, inverter, you name it - all trailer mounted so you can site it where you want and hide it when the tax man cometh. I'm not sure if the inventor has heard of thieves, however.