There's no prices on the website but how cool would one of these be if you had a sufficient reliable amount of water running through your property?

They're available in kit form so you can assemble them in place without needing a telehandler or crane etc.

The site had a few case studies were depending on the wheel size and water flow rate you could achieve about 3-6.5kw. One of the smaller examples had a 4m diameter wheel with a water supply of only 100l/s which didn't look a massive amount of water to me, that was producing 3.5kw (84kWh of power per day) The only maintenance on the wheel is greasing the bearings once a year.