The German grid is privately maintained and the Germans pay the highest rate for electricity in Europe, which you are correct in stating. The reason seems to be that these renewables(wind) is being heavily subsidized by the German homeowner, where as you can see in the article below they are paying for electricity that is one and half times more then what they are getting back. Governments should stay out of worthless and inefficient endeavors which cost the consumers money.
http://www.economist.com/news/briefing/ ... lion-euros
Excess supply plus depressed demand equals lower prices. Electricity prices have fallen from over €80 per MWh at peak hours in Germany in 2008 to just €38 per MWh now (see chart 2). (These are wholesale prices; residential prices are €285 per MWh, some of the highest in the world, partly because they include subsidies for renewables that are one-and-a-half times, per unit of energy, the power price itself). As wholesale prices fall, so does the profitability of power plants. Bloomberg New Energy Finance (BNEF), a data-provider, reckons that 30-40% of RWE’s conventional power stations are losing money.
The trouble is that power plants using nuclear fuel or brown coal are designed to run full blast and cannot easily reduce production, whereas the extra energy from solar and wind power is free. So the burden of adjustment fell on gas-fired and hard-coal power plants, whose output plummeted to only about 10% of capacity.
These events were a microcosm of the changes affecting all places where renewable sources of energy are becoming more important—Europe as a whole and Germany in particular. To environmentalists these changes are a story of triumph. Renewable, low-carbon energy accounts for an ever-greater share of production. It is helping push wholesale electricity prices down, and could one day lead to big reductions in greenhouse-gas emissions. For established utilities, though, this is a
disaster. Their gas plants are being shouldered aside by renewable-energy sources. They are losing money on electricity generation. They worry that the growth of solar and wind power is destabilising the grid, and may lead to blackouts or brownouts. And they point out that you cannot run a normal business, in which customers pay for services according to how much they consume, if prices go negative. In short, they argue, the growth of renewable energy is undermining established utilities and replacing them with something less reliable and much more expensive.
These government interferences into the private sector only causes investment and innovation to be allocated out of the industry. In the long run the consumer is faced with an inefficient system and higher prices, as seen with the German model.