Wind vs Time
PV vs time
Coal and gas vs time
It seems that coal and gas are rising with time whilst renewable are falling.
From these figures it appears that wind is now generating at a cost similar to coal and gas without carbon capture and storage.
Data from World Energy Perspective Cost of Energy Technologies
Published by World Energy Council in 2013
The only data on wind turbine build and running cost I have found is here
https://www.whatdotheyknow.com/request/balloo_wood_wind_turbine
