The effective wind speed in the Betws area now is 5 mph, an average of 14 mph minus 9 mph needed to start the turbines. So they are producing a tiny amount of power, far below their optimal range of about 20 – 40 mph of steady wind. That kind of wind speed never occurs in Wales or all of Britain, so the turbines are the result of outright corruption and should be demolished to stabilize the grid and to switch subsidies into building tidal lagoons. Solar is a sad joke at 0.5%. So the turbines and solar panels in Mawr are producing nothing. Hydro is a pathetic failure at 2.85% and nuclear and gas are flat out. Coal is about half capacity. This is the equinoctial season of high winds, and even in this season, turbines are useless.