More windmills for Don Quixote to tilt at?

Spain is going to invest in a project to develop vast windfarms in order to reduce its dependence on natural gas and coal fired power stations. As reported in today's Telegraph.

"The Ministry of Industry plans to announce over the next few weeks its more detailed plans to erect tens of thousands of pylons.
This will require a further investment of about €45,000m in order to produce 107.845 MW of electricity by the year 2030. The ambitious scheme involves tripling wind power in order to reduce Spain's dependency on foreign suppliers of gas (North Africa) and to reduce pollution."

The overall plan is to produce up to 49% of energy requirements from renewables by 2030. My bet is that Spain will succeed while here in the UK we will still not even be at the 20% target set for 2020, even when we get to 2030.