Sure. The thing is that in the real world if people get essentially free electricity they are not going to invest in energy efficiency because there is no benef

Sure. The thing is that in the real world if people get essentially free electricity they are not going to invest in energy efficiency because there is no benefit in doing so. I don't think this will happen anytime soon, though. Renewables are still expensive and in many cases rely on price guarantees by the government, and we're still in a phase when production has to increase significantly to keep up with demand. So overall the market reality and incentive is to push for efficiency while prices remain relatively high (at least in the UK)