I wouldn't be very surprised if we see completely integrated 'green' mining solutions for homeowners in the near future (hobbyists are already working on them as we speak), consisting of solar panels on the roof, using the miner's heat output to heat water for the house (needed winter & summer) and a way to put it outside or submerged to make it silent. The miner(s) could even help repay the solar installation faster, as you don't usually pull the whole power that it can theoretically provide, so part of the generated energy is lost if you're not mining. With a good OS, the power draw can be dynamically adjusted depending on the output of the solar array.
By that, do you think it'll ever be a possibility that energy solutions might be sold or supplied with the purchase of mining equipment, or is that a little bit too expensive, and bulky to justify?
I do agree, that a lot of miners will be looking to repurpose that lost energy, and heating water might the method of choice. Although, I haven't looked at the practicalities of that or how much water you'd be able to actually heat up. Since, most water is heated up on demand, i.e if you want a bath, that's when your boiler kicks in, and heats up the water. I'm not sure if a miner will have enough to be able to do that on demand? The energy could be banked potentially, and then used?