If you factor in the cost of upgrading the grid wind turbines are still a bargain.
Especially if you consider the economic possibilities of periods of nearly free electricity - e.g. fleets of electric cars/storage heaters/aluminium shelters demand shifting to take advantage.
Especially if you consider the economic possibilities of periods of nearly free electricity - e.g. fleets of electric cars/storage heaters/aluminium shelters demand shifting to take advantage.