But before anyone starts building windmills and sun collectors across the country, the coal mines should be given a second chance, while Germany's nuclear powers stations should run for as long as they're still safe. It's all a question of getting the balance right.

Federation president Johannes Lackmann said investment in renewable energy sources turbines had actually fallen in 2007 and called on the German government to do more to stimulate its growth. "The government's current provisions are insufficient to continue the successful course of recent years," he said. Tax breaks and other subsidies that renewable energy sources receive in Germany are due to be gradually phased out over the next few years, which "green" producers say will erode their already weak competitiveness compared to traditional energy sources such as coal and nuclear power.

The islands of Wangerooge and Borkum had sought to keep the future windparks, with towers rising 90 metres above the sea, out of their backyard. They argued that tourists might be put off by the view and that ships colliding with the windmills could cause huge oil spills.

Most of the power emanating from the Ruhr these days is generated by wind farms dotted across the landscape. There is one just by the campsite, vast turbines the size of the Eiffel Tower rising out of the fields and casting a shadow over caravan and camper van alike. As an advert for the site, the windmills don't do much. Oddly, none of them was turning when I arrived. Like the site owner, they were clearly rising above the flap and bustle going on all around them.

ROBIN Ball (Letters, August 5) has been a victim of the wind-energy deceivers. Those sails in Germany were not producing any energy at all.

Extracts from the attached promotional piece. The full report may be purchased from ABS.

After killing nuclear energy and coal-fired power plants, Germany is now taking aim at its own green policies, says the Wall Street Journal. After building nearly 20,000 windmills, Germans are now regulating them well beyond economical sense:

... while German power companies export 61 per cent of the wind generators they produce, the number of new wind turbines installed in Germany fell by more than 25 per cent in the first half of the year compared to the same period in 2006. "This is evidence that the fundamental conditions for wind power utilisation are no longer favourable in Germany," said Germany's Wind Energy Federation president Hermann Albers. ...These days news that a wind park is planned normally results in a local residents' campaign to raise concerns that the wind generators risk spoiling the countryside, driving away tourists and leading to sleepless nights for those living close to the turbines because of the infrasound - sound with a frequency too low to be detected by the human ear - caused by the whirling blades. Each year German courts hear 600-700 cases mounted by opponents of plans to build wind turbines in their local communities.

It may be the time to consider how wind farms fit in with the values which the Wilderness Society represents. If the Society is prepared to go through such a prolonged and worthy fight to save the forests, with all the financial and emotional costs involved, it would be consistent to regard wind farm development with the same scepticism with which it regards the wood chip industry. Both are potent adversaries to the values which I hope we share.

They call him the Don Quixote of the Uckermark. But unlike the Spanish literary figure, Hans-Joachim Mengel, a professor of political science at Berlin's Free University, isn't attacking imaginary "giants" in the Iberian hinterland. Rather, he is taking aim at the 400-foot windmills that blanket the German countryside. Mr. Mengel is not alone. Hundreds of citizens' groups have sprung up in Germany to battle "Verspargelung der Landschaft" - a new phrase in the German lexicon - meaning "the transformation of the German landscape into an asparagus field."

The German feed-in system, called the Erneuerbare Energieen Gesetz (Renewable Energy Law or EEG) guarantees producers of sustainable power a fixed price per kWh fed into the grid. Since the introduction of the EEG in April 2000, the amount of renewable energy in Germany has more than tripled. Last year saw the production of 20,000 GWh of wind power and 18,000 GWh from other renewable sources. The share of renewables in the electricity mix has increased from 3.01% in 2000 to 10.53% in 2006. The target for 2012 is 20%. At the same time, the increasing share of renewables confronts the power sector with growing pains. They are facing an increasing input from highly variable sources. For instance, in 2004 the grid feed-in from renewable sources has varied between 1.8 and 14 GW.

Most shocking of all is new evidence that the need to switch on and off base load fossil fuel power plants, to provide back up for unreliable wind turbines, actually gives off more carbon emissions than keeping them running continuously, thus negating any carbon savings from wind. Alas, only when our governments have allowed thousands more turbines to disfigure Britain’s countryside, not least by their grotesque bending of the planning rules, will the futility of the ‘great Wind Scam’ finally be recognised.

Wind energy, fed to the grid to save resources and reduce emissions, requires control power for balancing fluctuations; this causes fuel losses in thermal power stations and limits the degree of energy substitution. Facilities for energy storage are needed when greatly extending wind power use off-shore, at the same time generating secondary fuel for stationary and mobile applications.

This report published by the British Ornithologists’ Union provides an important look at bird migration behavior over water and the potential for collision with offshore wind energy turbines. The authors recommend "abandonment of wind farms in zones with dense migration, turning off turbines on nights predicted to have adverse weather and high migration intensity, and actions to make wind turbines more recognizable to birds, including modification of the illumination to intermittent rather than continuous light, as the most appropriate mitigation measures." An excerpt of the Executive Summary appears below. The full report can be downloaded from this webpage.

High wind-power production in Germany one Saturday night helped extend a blackout across Europe. Last month, the Conservative government joined the long line of governments around the world subsidizing the production of wind power. Meanwhile, new information about wind power from Europe raises the spectre of unexpected blackout risks, high costs, unreliable production and even questionable environmental benefits. Concerns over wind power used to focus on whether enough wind would blow to keep wind generators busy and electric power grids supplied. Now, after a major power blackout in Europe in November that left 15 million households in the dark, concerns over wind power come from an entirely opposite direction – fear that wind power can unpredictably produce more power than a system can handle.

Fresh concerns have emerged over the future of BP's alternative energy business after a fire broke out at one of the company's largest solar power installations in Germany. The incident on June 21 destroyed nearly 200 sq m of one of the world's largest roof-mounted solar panel arrays on a warehouse complex in Bürstadt, near Mannheim.

In conclusion, this study has shown that in many countries deregulation is having the expected effect of increased competition leading to price reduction. However, it is evident that pricing in markets depends not just on the status of deregulation, but also on the broader aspects of competition. Key factors here include the balance of supply and demand, generation fuel costs, the learning process that new markets go through, competition within different market segments and the costs of access to transmission and distribution networks. Deregulation is a long-term process that requires sustained attention.

High annual growth rates over the past years resulted in an installed wind power capacity of 12 000 MW in Germany by the end of 2002 which generated about 17.3 MWh electricity, that is about 3.7 % of the German electricity consumption. This development was made possible by laws introducing feed-in tariffs for wind power generation. Due to the fluctuating nature of wind power generation the feed-in of growing amounts into the grid causes considerable challenges and costs for affected transmission system operators, who have to ensure a save grid operation, though basically good working wind power prediction tools exist. The owner of wind turbines do not have to deal with these problems since the Renewable Energy Act (EEG) ensures that their generated power is compensated for by fixed feed-in tariffs. In the long run, this is not a sustainable approach: Wind power needs to compete sooner or later fully with other power generating technologies at the market and wind turbine owners need to be able to sell a tradable product. After successfully supporting the development of the wind power technology, an approach is needed for including the owners of wind turbines in the task of realizing other ways than simply providing growing amounts of balancing power for wind power feed-in and gradually face them with the energy economic reality of integrating large amounts of wind power into the grid.

The German energy company RWE said the blackouts were caused by surging electricity demand Saturday evening due to a plunge in temperatures to the freezing point. Insufficient electricity supply first triggered blackouts in parts of western Germany, particularly in Cologne, and then across France as the French electricity company EDF tried to fulfill the surging demand but could not.