There are much cheaper ways to reduce carbon dioxide emissions than subsidizing renewable energies. CO2 abatement costs of PV are estimated to be as high as $1,050 per ton, while those of wind power are estimated at $80 per ton. By contrast, the current price of emissions certificates on the European emissions trading scheme is only 13.4 (Euro) per ton. ...Moreover, the prevailing coexistence of the EEG and emissions trading under the European Trading Scheme (ETS) means that the increased use of renewable energy technologies generally attains no additional emission reductions beyond those achieved by ETS alone.

The German army has identified a series of wind park projects as a threat to national security and blocked investments worth 1.5 billion euros because it fears spinning wind turbines will interfere with its radar systems. The Bundeswehr has launched an investigation into the impact of the wind turbines planned for northern Germany's coastal area amid concerns they could compromise air defense -- because they could in theory provide a shield for enemy aircraft.

Big machines have been rolling up to Allegheny Mountain for days. Site development work on Virginia's first industrial wind energy plant is expected to start this week. Passersby report heavy equipment has been parked near the entrance to Red Oak Knob, and blasting heard over the last couple of days. A skidder moved in after dark a few days ago, and trees are being cut near one of the turbine sites; one truck full of logs has already headed out with its load.

District 300 would shoulder 80 percent of the costs - as well as potential benefits and decision-making - associated with the consortium that would build wind turbines to generate the electricity. Dave Ulm, the district's energy coordinator, said the entire project is estimated to cost between $46 million and $50 million.

Massive wind turbines seem to be killing more and more migratory bats, prompting research into these neglected creatures and efforts to minimize the toll. ...The deaths have led to a flurry of research on migratory bats and their behavior. "The problem with bats and wind energy has pushed a lot of work that wouldn't have occurred otherwise," says Edward Arnett of the Austin, Texas-based nonprofit Bat Conservation International. Indeed, at a January conference in Berlin on migratory bats, wind farms were a dominant theme. Scientists are racing to figure out what brings the bats in contact with wind turbines, and what can be done to save them.

Darrel and Jean Gogel's Trochu acreage is a piece of calm in a hectic world--where Darrel can retreat after working days away as a truck driver, and Jean can unwind from her job as a hospital housekeeper. That could change, the couple says, if a plan for a 54-turbine wind farm near their house goes ahead.

Residents near Dortmund were evacuated this week after the ground collapsed around a geothermal heat pump, while in another German town, almost 190 buildings have now been damaged by a geothermal project gone awry.

The six offshore wind turbines that REpower Systems began erecting near Germany's coast in 2004 make their older cousins look like pinwheels. Each one has three 61.5-meter blades, which in a good breeze make one revolution every 5 seconds, producing 5 megawatts of electric power. Inspired by Germany's bold vision for capturing offshore wind energy, these majestic machines are designed to withstand anything the famously unforgiving North Sea can dish out. And yet, these turbines have never felt the spray of salt water.

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.

Efforts should be focused on stopping output of carbon dioxide, the greenhouse gas which helps heat the planet, rather than moving to a source that can be regenerated, said Craig Mundie, the man who replaced Bill Gates as the world's largest software maker's futurist. Conservation and radical technologies, including new nuclear, could be key, he said.

The police in Nandurbar are verifying a complaint by one Anand Thakare alleging that Aishwarya, Suzlon Energy Ltd, the company that makes wind energy turbines and maintains and operates the turbines on behalf of the investors, and several others had duped him into "selling" his land cheap for a planned 1,000 MW wind energy farm.

The New York State Common Retirement Fund invested $15 million in Invenergy's High Sheldon Wind Farm, located in Wyoming County, through Credit Suisse Customized Fund Investment Group, State Comptroller Thomas DiNapoli announced Monday.

A company plans to build a $420 million wind farm with 133 turbines in southwest Campbell County. San Ramon, Calif.-based Third Planet Windpower is eyeing 14,000 acres for the project on both sides of Wyoming Highway 50 near the Johnson County line. The company has begun talking to local landowners about leasing land.

The Solway Firth is at the centre of £500 million proposals to build a mile-long dam between England and Scotland fitted with energy-generating turbines, the Sunday Herald can reveal. The proposed tidal barrage, subject of a £60,000-£100,000 feasibility study commissioned by Scottish Enterprise, the Nuclear Decommissioning Authority (NDA) and Northwest Regional Development Agency (NRDA), would stretch over the River Solway from Annan in Dumfries & Galloway to Bowness-on-Solway in Cumbria.

As much as 100 billion euros ($143 billion) in planned investments in German offshore wind farms are at risk as developers struggle to get funding, jeopardizing the deepest emissions cuts in the European Union. Bochum's municipal utility expects its first wind park to be delayed by up to two years, Managing Director Bernd Wilmert said. HEAG Suedhessische Energie AG, a regional energy supplier known as HSE, had to go to twice as many banks as it would have needed last year to finance a 1.3 billion-euro North Sea wind farm, Chief Executive Officer Albert Filbert said.

German savings banks are handing out more loans to renewable-energy projects as corporate rivals retreat from financing the world's biggest solar-panel market. The 438 savings banks financed 45 percent of the 5.3 billion euros ($7 billion) invested in solar and wind power projects in 2008, while loans from major corporate lenders including Deutsche Bank AG shrank to 0.8 percent.

The Obama administration wants to rebuild the national electric grid that delivers power to everyone's toasters and televisions. One reason is that the grid can't handle all the new solar and wind power the president wants to build to create a greener energy economy. Here's the problem: Solar and wind power are intermittent. Sometimes it's sunny, sometimes it's not, and it's the same for wind. But the grid needs constant and reliable sources of power.

German chancellor Angela Merkel has laid the foundation for a "milestone" renewable energy plant that answers the big question surrounding wind energy: what happens when it isn't windy? ...Some renewable energy experts have expressed doubts that the electrolysis will be as effective as planned and warn that the technology is a long way from being market-ready. ..."The technology is very elaborate and very expensive," says Dr Peter Schäfer of the Jülich research centre, which operated a similar hydrogen storage system powered by solar cells.

Vermont Public Power Supply Authority based in Waterbury wants to build three turbines on an old Air Force radar base in East Haven. The project would provide renewable power for approximately 4,000 homes.