@wmd @vaurora I 'm not sure - it seems to me that many small-scale water-driven turbines in old mills and on streams is precisely where local differences could be made. Larger-scale hydro schemes need hillier terrain. And wind is still not taken advantage of as much as it could be (I remember a few years back, sceptics saying that wind would never make a significant difference to the UK's power grid, it now often produces 30-45percent)