By Giles Parkinson
The most common critique of wind energy, and renewables in general, in the mainstream media and anywhere the issue is discussed is that it is expensive.
The problem is, this is only half true. Or at least, it only tells half the story. While the levelised cost of energy from wind farms is higher than that of baseload coal and gas, the deployment of wind energy here and overseas is having a surprising impact on energy market prices: it is causing them to fall.