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I've got another guest post from Neil Howes up at TOD, this one proposing a rough plan for North AMerica to obtain 50% of its power from wind by 2030 - A North American Wind Energy Scenario. Would a "50% of electricity generated by wind scenario" work in North America by 2030? In this post, I make a rough cut estimate of what might be required to make such a transition in about 20 years time. Most proposals that are being made rely on a very big increase in carbon free energy, both to charge electric vehicles (EV's) and to replace oil and natural gas (NG) presently used for hot water and space heating. In this post, I lay out a path by which 50% of North American energy might come from wind by 2030, including replacement of a large share of oil and natural gas use by electricity. ... High quality wind resources (wind speeds greater than 6.9m/sec) in the US are estimated to be >5,500GWa, about x10 all of N America's present electricity production of 550GWa. Canada's potential appears to be similar or greater than the US, while Mexico's wind resources are more limited (these figures do not include deep offshore resources that could be harnessed by floating wind turbines or higher altitude wind resources that could potentially be harnessed by airborne wind turbines).

At the recently held EWEC 2009 wind energy conference and exhibition most exhibitors agreed that while there has been a substantial business slowdown due to problems linked to obtaining wind project financing, an upturn in demand during the second half of 2009 is beginning to play out, at least in the U.S. Other exhibitors, on the other hand, were a bit more cautious pointing out that substantial numbers of unsold turbines from framework contracts failing to secure project finance are now floating on the wind market. Most interesting from a wind technology point of view is the V112-3.0MW switch away from a compact V90-3.0MW integrated gearbox and main bearing assembly to a 3-point gearbox support. The application of a permanent magnet (PM) type generator with full converter system in the V112-3.0MW is new for Vestas but not for the wind industry. New Technology Trends In what many wind industry insiders consider a major development trend, French aerospace companies EADS Astrium & EADS Composite Aquitaine announced their formal entrance into the wind industry. The French companies offer the wind industry advanced composite materials engineering, manufacturing and related know-how as well as rotor-blade manufacturing capacity.

Renewable Energy World has a report on a new Scottish wind farm - Europe's Largest Onshore Wind Farm Is Switched on in Scotland. Today, the final phase of Europe's largest onshore wind farm is being turned on in Scotland. The 322-megawatt (MW), 140-turbine Whitelee wind farm was built by ScottishPower Renewables, which is part of the Spanish power business Iberdrola. In Spain and internationally, the Iberdrola Group, is the world's largest developer of wind power, with nearly 9700 MW of installed capacity. The wind farm uses Siemens 2.3-MW machines. Positioned 370 meters (1200 feet) above sea level, 15 kilometers (9 miles) outside of Scotland's largest city, Glasgow, the new wind farm has over half a million people living within a 30-km radius of it. It's one of the first large-scale wind farms to be constructed close to a large population center. The first phase of the wind farm started feeding power into the grid in January 2008.

New Study: 10 billion tonne saving in CO2 possible with wind energy by 2020: Wind power is key technology to prevent dangerous climate change. Wind power could produce 12% of the world's energy needs and save 10 billion tones of CO2 within 12 years, according to a new report published today. The 'Global Wind Energy Outlook 2008', published by the Global Wind Energy Council (GWEC) and Greenpeace International, looks at the global potential of wind power up to 2050 and found that it could play a key part in achieving a decline in emissions by 2020, which the IPCC indicates is necessary to avoid the worst consequences of climate change.7By 2020, wind power could save as much as 1.5 billion tonnes of CO2 every year, which would add up to over 10 billion tonnes in this timeframe. The report also explains how wind energy can provide up to 30% of the world's electricity by the middle of the century.

Having almost been run off the road by Iowa's gusty winds, I'm not surprised to hear about the state's interest in wind energy. But the scale of its current project- a one billion dollar wind farm- is truly impressive. The proposed Trade Wind Energy farm will feature 335 wind generators that can produce up to 500 MW of energy. Each generator will be able to power 500 to 1,000 homes. The generators will each be at least 1,000 feet apart, and property owners in the vicinity will receive rent for use of wind rights. Project details haven't been finalized, however, and the number of wind generators will ultimately depend on success in leasing property rights. But Trade Wind Energy representatives are confident that the project will go ahead as planned since some leases have already been signed and area farmers seem receptive.

All Incentives for this State DSIRE Home Pennsylvania Incentives for Renewables and Efficiency See Federal Incentives See All Summaries See Homeowner Incentive Summaries Only Financial Incentives Local Grant Program * Metropolitan Edison Company SEF Grants (FirstEnergy Territory) * Penelec SEF of the Community Foundation for the Alleghenies Grant Program (FirstEnergy Territory) * Sustainable Development Fund Grant Program (PECO Territory) * West Penn Power SEF Grant Program Local Loan Program * Metropolitan Edison Company SEF Loans (FirstEnergy Territory) * Penelec SEF of the Community Foundation for the Alleghenies Loan Program (FirstEnergy Territory) * SEF of Central Eastern Pennsylvania Loan Program (PP&L Territory) * Sustainable Development Fund Commercial Financing Program (PECO Territory) * West Penn Power SEF Commercial Loan Program Property Tax Assessment * Wind-Energy System Exemption State Grant Program * High Performance Green Schools Planning Grants * Pennsylvania Energy Development Authority (PEDA) - Grants * Pennsylvania Energy Harvest Grant Program State Loan Program * Keystone Home Energy Loan Program * Pennsylvania Energy Development Authority (PEDA) - Loans and Loan Guarantees * Small Business Pollution Prevention Assistance Account Loan Program Utility Loan Program * Adams Electric Cooperative - Energy Resource Conservation (ERC) and Supplemental Loan Program Alternative Fuel and Vehicle Incentives * U.S. Department of Energy's Alternative Fuels Data Center Rules, Regulations & Policies Building Energy Code * Pennsylvania Building Energy Codes Generation Disclosure * Fuel Mix Disclosure Green Power Purchasing/Aggregation * Montgomery County - Wind Power Purchasing * Pennsylvania - Green Power Purchasi

"A new study by the Department of Energy's National Renewable Energy Laboratory (NREL) has revealed that U.S. wind resources are far greater than previously believed. The study, a collaborative project between NREL and AWS Truewind, LLC, of Albany, New York, created resource maps and wind potential tables for 48 states. The recent study is the first comprehensive update of the wind energy potential by state since 1993. The resource maps for the contiguous United States, and separately for each state, show the predicted mean annual wind speeds at 80-meter height. They are derived from 200-meter resolution maps developed by AWS Truewind for the windNavigator system. Areas with annual average wind speeds around 6.5 m/s and greater at 80-meter height are generally considered to have suitable wind resources for wind development"

Technology Review has an article on advances in wind turbine technology - Better Wind Turbines. ExRo Technologies, a startup based in Vancouver, BC, has developed a new kind of generator that's well suited to harvesting energy from wind. It could lower the cost of wind turbines while increasing their power output by 50 percent. The new generator runs efficiently over a wider range of conditions than conventional generators do. When the shaft running through an ordinary generator is turning at the optimal rate, more than 90 percent of its energy can be converted into electricity. But if it speeds up or slows down, the generator's efficiency drops dramatically. This isn't a problem in conventional power plants, where the turbines turn at a steady rate, fed by a constant supply of energy from coal or some other fuel. But wind speed can vary wildly. Turbine blades that change pitch to catch more or less wind can help, as can transmissions that mediate between the spinning blades and the generator shaft. But transmissions add both manufacturing and maintenance costs, and there's a limit to how much changing the blade angle can compensate for changing winds.

Jerome a Paris has an excellent (and long) article at TOD about the economics of wind power - The cost of wind, the price of wind, the value of wind. I'd like to try to clear some of the confusion that surrounds the economics of wind power, as it is often fed and used by the opponents of wind to dismiss it. As I noted recently, even the basic economics of energy markets are often wilfully misunderstood by commentators, so it's worth going in more detail through concepts like levelised cost and marginal cost, and identify how different electricity producers have different impacts on electricity (market) prices (which may or may not be reflected in retail prices) and have different externalities. Value for society of a generation source may also include other items that are harder to acount in purely monetary terms (and/or whose very value may be disputed), such as the long term risk of depletion of the fuel, or energy security issues, such as dependency on unstable and/or unfriendly foreign countries or vulnerable infrastructure.

While still a small percentage of overall electric generation, there's no denying that wind power has been growing consistently in the United States. In 2007, an additional 5,329 megawatts of capacity was added, an amount which was slightly more than a quarter of all new global wind capacity that year. Currently an additional 8 gigawatts of wind capacity is under construction and scheduled to be operational by the end of 2008. The result: This will be the third straight year that the United States leads the world in annual wind power installations, according to a new study by Emerging Energy Research.

Formerly a region of high-unemployment, the German port of Bremerhaven has experienced a remarkable economic upturn, transforming into a major offshore wind power know-how centre and more. At least four of Germany's North Sea and Baltic Sea major ports have been transformed into the country's main wind industry logistical centres and/or equipment manufacturing/supply bases during the past few years. 'Of the €500 million invested for offshore wind power development along the German North Sea coastal region during the past years, about half came to Bremerhaven.' -- Jan Rispens, Managing Director, Windenergie Agentur Bremerhaven/Bremen (WAB) Emden serves as a main export harbour for Enercon wind turbines, and the German market leader operates a large concrete tower manufacturing plant within Emden's boundaries. BARD Engineering chose Emden as its offshore wind turbine assembly and rotor blade manufacturing location, while part of BARD's Tripile offshore foundations are being manufactured by a subsidiary company in Cuxhaven. Both BARD and Enercon have, in addition, built a foundry in the region, aimed at providing at least part of their individual demand for heavy-cast components.

Swedish company Home Energy recently revealed an innovative wind turbine that spins in a spherical formation. Eschewing traditional rotors for a sleek orb structure, this beautiful rethinking of conventional wind turbine design utilizes the Venturi principle, which funnels wind within the turbine's blades. The resulting spherical wind turbine features increased efficiency and lower noise levels - making it ideal for small scale energy needs such as personal home use. Best of all it's called the Energy Ball: the fun name is an added bonus.

An aide to Obama said Friday that the administration plans to add 20 gigawatts (GW) or more of wind power and 4 GW of geothermal and solar power by 2012 through loan guarantees and fast tracked national renewable energy requirements, like the Renewable Portfolio Standard. Last May the U.S. Energy Department estimated wind power could provide almost a quarter of U.S. electricity. Trade groups from the U.S. wind and solar industries were happy with the news, considering that the current economic environment for commercial credit has lowered all boats as it were, with all investment now endangered - not just investment in risky financial instruments, but even those investments in renewable energy that are essential to growing a stable economy. 4 votesBuzz up! No other country, in any single year, has added the volume of wind capacity that was added to the US electrical grid in 2007 with both wind and solar growing well over 40%, but with the credit crunch affecting all sectors of the economy, new projects could drop by as much as 50%, without help from the Federal government.

Scientists at The Nature Conservancy in Montana have completed the first analysis of where wind generation facilities can be located with minimal risk to the state's wildlife and the environment. Wind provides great promise for a clean and renewable source of energy, but each year wind generation facilities kill tens of thousands of birds and important pollinators such as bats. . And yet, wind energy development has moved forward with very little science-based analysis that might help prevent this kind of environmental harm. The impacts of wind generation are greater than just the immediate airspace. Most turbines take up 40-100 acres of land, so large-scale wind farms can span thousands of acres. Each facility also requires roads and transmission corridors.

Spain has set a record this week by powering 29-40% of its electricity needs from wind energy. A huge 11,180 MW was generated on Thursday when high winds blew through north west Spain. When demand was lower early in the morning, wind energy supplied 40% of the country's requirements whilst later on when demand rose, wind energy supplied 29%. This year wind turbines have supplied 11.5% of electricity demand in Spain positioning the country as the third biggest producer of wind energy next to Germany (second) and the US (first). There is a national target of reaching 20,000 MW by 2010. This compares with a figure of just 7300 MW likely to be operational in the UK by 2010 (the number currently built or with planning consent). Companies with a significant presence in Spain are Iberdrola, Acciona and Endesa.

n 2008, more wind power was installed in the EU than any other European Wind Energy Association (EWEA) Logo today show that 43% of all new Electricity generating capacity built in the European Union last year was wind energy, exceeding all other technologies including gas, coal and nuclear power. A total of 19,651 MW of new power capacity was constructed in the EU last year. Out of this, 8,484 MW (43%) was wind power; 6,932 MW (35%) gas; 2,495 MW (13%) oil; 762 (4%) MW coal and 473 (2%) MW hydro power capacity. For the first time, wind energy is the leading technology in Europe. A total of 64,949 MW of installed wind energy capacity was operating in the EU

At the end of May, Renewable Energy World's Eize de Vries was invited to Belgium to view the construction of a wind farm that may be providing a view of the future. And a genuine wind industry innovation, Eize de Vries reports, is that the advanced E-126 built-in power electronics will actively contribute towards stabilizing the transmission grid voltage within the entire region. WindFarm Estinnes S.A. is an onshore wind farm that will comprise eleven of the latest generation of Enercon's E-126 direct drive wind turbines, a machine currently rated at 6 megawatts. Each E-126 has a 127-metre rotor diameter - combined with the 135-metre the turbine has a total 198.5 metre installation height. WindVision's Estinnes is expected to generate at least 187,000 MWh per year. And a genuine wind industry innovation, Eize de Vries reports, is that the advanced E-126 built-in power electronics will actively contribute towards stabilizing the transmission grid voltage within the entire region.

Germany's first offshore wind farm has gone online off the North Sea island of Borkum. A year late and 50 million euros over budget, it's still the best hope proponents of green energy have for meeting the country's ambitious emissions reductions targets. Electricity generated by Germany's first offshore wind energy park began streaming into the national network on Wednesday as three wind turbines located 45 kilometers (28 miles) north of the North Sea island of Borkum went online. The three wind turbines are massive. Each towers more than 100 meters (328 feet) above the waves, with blades spanning more than 116 meters. Individually, the wind turbines are capable of generating 5 megawatts of energy per year. The initial trio will be joined later this year by nine more wind turbines. When all 12 go online later this year, the installation is expected to provide enough electricity to power 50,000 homes.

The U.S. market for small wind turbines grew 78% last year, highlighting heightened interest in, demand for, and use of distributed alternative and renewable power systems. A total 17.3 megawatts worth of new small wind turbines--defined as wind turbines with generation capacities of 100 kilowatts and less--was installed in 2009, according to a report by the American Wind Energy Association released May 28. "Consumers are looking for affordable ways to improve their energy security and reduce their personal carbon footprint," said Ron Stimmel, AWEA's Small Wind Advocate. "Small wind technology can be an answer to that search. As government policies have caught up with consumer interest, we're seeing people all across the U.S. take advantage of this abundant, domestic natural resource and U.S. manufacturers have been able to meet this increasing demand."