Here are the statistics on the cost of power generation in 2010 from the Australian Government’s own Productivity Commission:

Coal fired power station $79 per kw/h (kilowatt/hour)

Gas fired power station $97 per kw/h – or 1.2 times the cost of coal power

Wind farm power $1502 per kw/h – or 19 (nineteen) times the cost of coal power

Solar power $4004 per kw/h – or 50 (fifty) times the cost of coal power
Sursa aici.
Este vorba de costurile din Australia.
Interesant eficienta economica, nu ? SI, mai ales, de viitor…