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Wind Power

May 16, 2008

Pickens Mesa Power Orders 1,000 MW of Wind Turbines

Per press release, edited slightly:

T_boone_pickensMesa Power LLP, a company created by T. Boone Pickens, has placed an order with General Electric to purchase 667, 1.5 megawatt wind turbines for the worlds largest wind farm, capable of generating 1,000 megawatts, nameplate, of electricity, enough to power more than 300,000 average U.S. homes. The order is part of the $2 billion first phase, see previous post, of the Pampa Wind Project planned in the Texas panhandle by Mesa.

When all the phases of the project are completed it will become the world's largest wind energy project, with more than 4,000 megawatts, nameplate, of installed capacity. When completed, projected to be in 2014, the wind farm will be five times as big as the nation's current largest wind power project, now producing 736 megawatts.

Pickens said he expects that first phase of the project will cost about $2 billion. When complete, the Pampa Wind Project will cover some 400,000 acres in the Texas Panhandle.

Pickens envisions that large scale renewable energy projects like his Pampa Wind Project will permit the United States to become less dependent on foreign oil. Large scale renewable energy projects such as this are difficult to execute because they rely upon the Federal Production Tax Credit, which provides incentives for development of renewable energy. However, large scale renewable energy projects require commitments years in advance, while Congress has only extended the Production Tax Credit one or two years at a time.

Continue reading "Pickens Mesa Power Orders 1,000 MW of Wind Turbines" »

May 15, 2008

Worlds Largest, $1.8 Billion, 500 MW, Wind Farm to be Built off the Coast of UK

Per Fluor Corporation press release:

Fluor Corporation, Dallas, TX, (NYSE: FLR) announced Wednesday that it has signed a contract with Scottish and Southern Energy (SSE) to design and construct the 500 megawatt (MW) Greater Gabbard Offshore Wind Farm. The venture is the world's largest offshore wind farm project to move into the construction phase and will be built approximately 25 kilometers off the Suffolk coast of the United Kingdom (UK). The new award will be booked in the companys second quarter of 2008 and is worth approximately $1.8 billion (£900 million).  . . .

The first UK offshore wind farm to be built outside territorial waters, the project will feature 140 wind turbines each having a rated capacity of 3.6 MW. The turbines will be supplied by Siemens Wind Power A/S under a separate contract with SSE. Fluor will be responsible for the installation of the turbines which will be mounted on steel monopiles and transition pieces in water depths between 24 and 34 meters. A new electricity substation will be built near Sizewell, Suffolk, UK.

Construction work is scheduled to commence for the offshore site in summer 2009, with work to prepare the site for the onshore substation already underway. The wind farm will be commissioned in two phases, with the entire construction scheduled to be completed in 2011.  . . .

The success of the Greater Gabbard Wind Farm will clearly establish Fluor as a leader in the rapidly growing market to develop and construct large-scale offshore wind farms, said . Wind farms represent just one aspect of Fluors strategy of applying our expertise and resources to assist clients in making meaningful reductions in carbon emissions and providing significant amounts of new, clean and renewable energy.

Stephen Dobbs, senior group president of Fluor

This award of a project of this size and to a major engineering and construction company is a sign that wind power has reached maturity. A $1.8 billion project, without the turbines as I read it, is a major project by any standard.  The price seems high to me, but the energy is free. Offshore wind power is more expensive than land based wind power and this project is quite a ways off shore and in fairly deep water for wind power, which explains at least part of the high price. Still at half the size of a typical power plant, this is not that big a plant. 

April 28, 2008

Missouri City Goes 100% Wind Power

Rock_port_mo_wind_powered_cityFollowing the opening of a new 5 MW four-turbine wind farm last week, Rock Port, a town of 1,395 in North West Missouri, has become the first U.S. town to get all its electricity from wind power. The $90 million Loess Hills Wind Farm, was built by St. Louis-based Wind Capital Group and the John Deere Corp.

When fully operational, the four Suzlon 1.25 MW S-64 wind turbines will have the capacity to generate 16 million kilowatt hours a year. Historically, Rock Port electrical customers use approximately 13 million KwH annually.

Missouri Joint Municipal Utilities will buy excess power from the farm, expected to eventually generate 16 million kilowatt hours of electricity per year. As part of this powerpurchase agrreement  MJMU will supply Rock Port's power needs when the wind turbines are not generating at capacity.

April 18, 2008

Pickens Wind Farm to Get Underway

Texas oil man T. Boone Pickens is commencing action, with plans for his company, Mesa Power, to build, over the next four years, the previously announced $10 billion wind farm, the world's largest, that will eventually generate 4,000 megawatts of electricity - the equivalent of building two commercial scale nuclear power plants - enough power for about 1 million homes.

Next month Mesa Power, will begin buying land and ordering the first 500 wind turbines of the 2,700 turbines required for the project, at about $2 million each, to be located across 200,000 acres of the Texan panhandle.

"Don't get the idea that I've turned green. My business is making money, and I think this is going to make a lot of money."

-- Pickens in the Guardian

Pickens grand plan, not to be built by him, for resolving the energy needs of the US. is to build wind farms on a corridor of land running north to south through the middle of the US - along the great plains and to harvest solar energy from a corridor running east to west from Texas to southern California.

Pickens certainly thinks big, and somebody has to, as the U.S. government is doing little to resolve our compounding needs for new power sources. I assume thermal solar power would be used for the solar part of his plan as it currently is much less expensive than PV solar and thermal solar power can be quite easily adapted to thermal storage, although that brings the price up to where the total cost is quite expensive.

The only other comment I have is on Pickens grand scheme, and that would be to utilize geothermal power in addition to solar and wind.   Conventional geothermal would be used in the northwestern part of the U.S., primarily in California, Nevada, Idaho and Oregon, Hawaii and along parts of the New England coast. Hot dry rock or deep geothermal/EGS can be used in almost all of the U.S. and would serve the southern and eastern parts of the country, where solar and wind are not particularly applicable. The current cost of geothermal is comparable to natural gas power and thus is very attractive. Geothermal has the advantage of being a baseload power source, whereas wind and solar are not particularly suited for this application.  Thermal storage can be added to thermal solar but that would be more costly than geothermal. Significantly improved utilization of wind and solar can be obtained by tying geographically diverse sources together with an extensive grid. However, that is costly and would have to be studied in detail.

I personally think that a part of this plan would have to be to use generation III+ nuclear reactors and clean coal with sequestration to compliment the renewable power portions of this plan. This will be required to improve the baseload properties of the grid and provide the required power we need until the renewable power providers have built up sufficient capability. If Pickens, through his companies, can finance a $10 billion project that will supply 4 gigawatts of power, I would think that there would be several other companies, utility companies in particular, that could spend that much and supply all the incremental needs for power. Companies like Glitner and Chevron are capable of very large geothermal plants. Other diversified oil companies could get into the act as the supplies of oil get even more expensive and the world turns to electrictity as a larger and larger share of its power supply.

March 02, 2008

Sodium Sulfur Batteries to be Used for Energy Storage at MN Windfarm

Xcel Energy, (NYSE: XEL)in partnership with the University of Minnesota, the National Renewable Energy Laboratory and the Great Plains Institute, will soon begin testing a one-megawatt sodium-sulfur battery storage system to demonstrate its ability to store wind energy and dispatch it to the electricity grid when needed.

Fully charged, the batteries could power 500 homes for six and one-half hours. Xcel Energy will purchase the batteries from NGK Insulators, Ltd. that will be an integral part of the project. The sodium-sulfur battery is commercially available and versions of this technology are already being used in Japan and in a few US applications, but this is the first U.S. application of the battery as a direct wind energy storage device.

The 50-kilowatt battery modules, 20 in total, will be roughly the size of two semi trailers and weigh approximately 60 tons. They will be able to store about 6.5 megawatt-hours of electricity, with a charge/discharge capacity of one megawatt. When the wind blows, the batteries are charged. When the wind calms down, the batteries can be used to supply energy to the grid as needed.

"Energy storage is key to expanding the use of renewable energy. This technology has the potential to reduce the impact caused by the variability and limited predictability of wind energy generation."

-- Dick Kelly, Xcel Energy chairman, president and CEO.

The project will take place in Luverne, Minn., with the battery installation beginning this spring adjacent to a nearby 11-megawatt wind farm owned by Minwind Energy, LLC. Testing will begin in October and is expected to last up to two years.

Commercial projects are now underway that use flow batteries, compressed air energy storage, thermal energy storage, pumped hydro, and sodium sulfur batteries for energy storage in connection with renewable energy projects.  American Electric Power (AEP) is also using NaS batteries in a couple of their systems, but not in connection with wind power. While not enough experience has been gained with any of these technologies to make any decision as to which technology is best under what conditions, pumped hydro and sodium sulfur batteries are the most well proven and thus seem to be the first choice of electric utilities. Thermal storage is gaining acceptance for use with thermal solar systems, the only energy technology that it is suitable for use with. As Mr. Kelly stated, energy storage is essential to widespread use of renewable energy technologies. 

January 20, 2008

Acconia Windpower Opens U.S. Production Facility

Acconia_wind_power_html_m58b3f8dbAcconia Windpower, a Spanish producer of wind turbines, announced that it has opened a $23 million wind turbine generator production plant in West Branch Iowa. The 200,190 sq. ft. facility was constructed in seven months.

The plant is scheduled to produce 200 wind turbines in 2008, with plans to increase to 400 turbines per year in the future. The facility will supply turbines primarily for Acciona Energy wind farms throughout North America and will utilize proprietary technology to produce its AWP 1.5-77 models.  (This model is believed to be part of the AW 1500 series, in particular the AW-77/1500-CII (1,500 kW, 77 meters diameter), which is available in classes I, II and III, with rotors between 70 and 82 meters in diameter and tubular steel towers of 80 and 60 meters high, more details here) The blades will most likely be produced at a facility in Lumber (Navarra, Spain) which is scheduled to open this year.

The new plant at West Branch is Accionas fourth wind turbine plant to be installed, with two plants currently operational in Spain and one in China. Accionas West Branch plant will increase the companys total production capacity up to 2,280 MW a year. Acconia, as of Sept 30,2007, had 3 windparks in the U.S. with a total power of 141 MW.

ACCIONA Energy, the parent company to Acconia Windpower, is a world leader in renewables with a strong presence in eight sectors. It is the first developer of windparks in the world with more than 5,300 MW installed in twelve countries. The company recently launched Nevada Solar OneTM, the largest solar thermal power plant (64 MW) built in the world in the last 17 years, has installed more than 40 MW of photovoltaic and 29 MW of solar hot water power in Spain, and owns three biomass plants (33 MW) and 19 small hydro power stations (59 MW). In the field of biofuels, the company produces biodiesel from vegetable oil and biotethanol from wine-surplus alcohol.

December 15, 2007

Wind Power as a Baseload for Electric Power

Windfarm A study conducted by Stanford University confirmed that interconnected multiple wind farms can be used to provide baseload electric power. Interconnecting wind farms with a transmission grid reduces the power swings caused by wind variability and makes a significant portion of it just as consistent a power source as a coal power plant.

"This study implies that, if interconnected wind is used on a large scale, a third or more of its energy can be used for reliable electric power, and the remaining intermittent portion can be used for transportation, allowing wind to solve energy, climate and air pollution problems simultaneously," said Archer, the study's lead author and a consulting assistant professor in Stanford's Department of Civil and Environmental Engineering.

This is an advantage that wind and wave power have over solar power (without storage) unless the geographical diversity of the solar power is so great that there are significant differences in the period of sunlight, which would make the cost of transmission too great using current transmission techniques. High-voltage direct current (HVDC) or high temperature cryogenic transmission could alter this picture. The European super grid described in a previous post depended on both the diversity of wind farms and advanced transmission techniques, but such a large geographical diversity is not required. A previous post reported on an earlier study that came to even more favorable results using a mix of all the renewable technologies. The study found that by combining a diversity of geographical locations and a diversity of technologies, "renewables combined with domestic combined heat and power could ultimately make the following contributions to Britain's total energy supply: wind 35%, wave and tidal 15%, combined heat and power 15%, and solar 5-10%." 

An energy storage system, using compressed air storage, here and here, makes wind power dispatchable, but is dependent on suitable geological conditions to store the energy. A vanadium redox battery energy storage system, that stores both solar and wind power as electricity, and thus is not dependent on location, is being planned for an Irish wind farm.

This combined with fact that wind power is less expensive than conventional power in some locations and that solar thermal power should reach that point within a few years, makes utility scale renewable power very possible within a few years and the phasing out of fossil fueled power and energy security realistic goals. Perhaps five years after that PV solar should be competitive opening up another technology for very wide spread use. The limitation at that point will be the production capacity of manufacturers of renewable energy equipment and shortages of some natural resources, such as silicon and vanadium, needed to make the equipment. Alternatives such as non-silicon solar will then be called on to meet the demand. First Solar is already a successful commercial producer of non-silicon solar cells. Market forces will then drive the production capacity without any need for subsidies.  In the meantime subsidies may be justified to keep the industries competitive.

December 10, 2007

Noted in Passing: Britain Plans Enough Offshore Wind to Power Every Home

Britain plans to generate enough electricity through offshore wind farms to power every home in the country by 2020.

Business secretary John Hutton says the government plans to reach the target through a fourfold increase in the amount of space off Britain's coast allocated for wind farms. Hutton acknowledges that the move will change Britain's coasts.

But he says the need for energy self-sufficiency leaves no choice. 

But its says a shortage of turbines will make it difficult to raise Britain's wind power production to 33 gigawatts by 2020 from the current level of half a gigawatt. . . . more

November 27, 2007

Google's Goal: Renewable Energy Cheaper than Coal

Esolar_array_2Google (NASDAQ: GOOG) today announced a new strategic initiative to develop electricity from renewable energy sources that will be cheaper than electricity produced from coal. The newly created initiative, known as RE<C, will focus initially on advanced solar thermal power, wind power technologies, enhanced geothermal systems and other potential breakthrough technologies.

In 2008, Google expects to spend tens of millions on research and development and related investments in renewable energy. As part of its capital planning process, the company also anticipates investing hundreds of millions of dollars in breakthrough renewable energy projects which generate positive returns.

"There has been tremendous work already on renewable energy. Technologies have been developed that can mature into industries capable of providing electricity cheaper than coal. Solar thermal technology, for example, provides a very plausible path to providing renewable energy cheaper than coal. We are also very interested in further developing other technologies that have potential to be cost-competitive and green. We are aware of several promising technologies, and believe there are many more out there."

"With talented technologists, great partners and significant investments, we hope to rapidly push forward. Our goal is to produce one gigawatt of renewable energy capacity that is cheaper than coal.  We are optimistic this can be done in years, not decades."

-- Larry Page, Google Co-founder and President of Products

Continue reading "Google's Goal: Renewable Energy Cheaper than Coal" »

November 26, 2007

Supergrid to Supply Europe with Wind Power

The Independent reports that a proposed supergrid could supply Europe with carbon free electricity primarily from wind power. The 5,000-mile electrical grid, stretching from Siberia to Morocco and Egypt to Iceland, would slash Europe's CO2 emissions by a quarter, scientists say.

Offshore_wind_turbinesThe scheme would make the use of renewable energy, particularly wind power, so reliable and cheap that it would replace fossil fuels on an unprecedented scale, serving 1.1 billion people in 50 countries. Europe's 1.25bn tons of annual CO2 output from electricity generation would be wiped out. High-voltage direct current (HVDC) lines, up to 100 times as long as the alternating current (AC) cables carried by the National Grid's pylons, would form the system's main arteries. HVDC lines are three times as efficient, making them cost effective over distances above 50 miles.

Building the supergrid would require an investment of US$80bn (£40bn), plus the cost of the wind turbines – a fraction of the €1 trillion the EU expects to pay for a 20 per cent reduction of its carbon footprint by 2020. The average price of the electricity generated would be just 4.6 euro cents per kWh, competitive with today's rates, which are likely to rise as fossil fuels run out.  . . .

Continue reading "Supergrid to Supply Europe with Wind Power" »

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