From what I've heard, the Dutch are having problems with trying to push beyond a certain percentage of their electrical load from wind power into the grid at any one time. It seems when they try to replace more than 10% of the total electrical demand with wind turbines (they built enough to supply 25% of their demand), the electrical grid system becomes "unstable", with power surges, and they have to sell the excess to surrounding countries for a loss. Sounds as though they didn't think thru the changes they'd need to make to their distribution system before trying to incorporate wind power.
Remember the Pickens Plan? His idea was to build a crapload of windmills (which he is heavily invested in) to supply electrical power, which would free up natural gas (which he is heavily invested in) that normally would be burned in conventional power plants, so we could instead burn it in our vehicles. Of course, that would entail supplying the equipment to convert vehicles over to natural gas (which he is invested in) and building the infrastructure to supply natural gas and filling equipment for service stations (which he is invested in) - gee, am I seeing an "investment" pattern here?
End result? When cap and trade stalled out, he dropped his plans for large wind farms. When asked why, he said without cap and trade to drive up the price of conventional fuels, and government subsidies for wind power which were also in cap and trade, financially it was a losing proposition - it couldn't compete without jury-rigging the market. So much for his attempt to become a great patriot and grant us "energy independence" - guess he loves his bank account more.