Showing posts with label sustainability. Show all posts
Showing posts with label sustainability. Show all posts

Wednesday, June 13, 2007

Close Vote Likely on Bingaman Renewable Energy Standard

Inside word on the Bingaman Renewable Portfolio Standard is that the vote will be very tight. If you support this concept, the time to weigh in is right now. You can reach any Senator's office through the U.S. Capitol switchboard at 202-224-3121. Further information here.

Regards,
Tom
Maple Ridge Wind Farm Bird Collisions Few

The latest of many avian studies at wind farms has been released, a heavy-duty look at bird and bat kills at the new Maple Ridge wind project in upstate New York. The results?

  • Bird collisions were very few in number, which is typical of U.S. wind farms. Regular searches around 50 wind turbines found 125 birds (not all necessarily killed by the turbines).

  • Only one raptor (bird of prey) was found, an American kestrel (a common species).

  • Bat mortality was higher and remains an issue. 326 bats were found, equating to roughly 10-15 per megawatt of generating capacity. This is fewer than at Appalachian sites in Pennsylvania and West Virginia where the bat problem appears to be centered, but definitely not negligible. (The wind energy industry, Bat Conservation International, the National Renewable Energy Laboratory, and the U.S. Fish and Wildlife Service are partners in a multi-year research effort to understand the bat collision problem and find ways to reduce mortality. Currently, that program is aimed at testing a sonic deterrent to warn bats away from wind farms.)

  • No threatened or endangered bats found. This continues the pattern at U.S. wind sites.

    The detailed language from the Maple Ridge report provides some very interesting insights:

    People/agencies who reviewed the proposed scope of work [for the study] included staffers from the U. S. Fish and Wildlife Service (USFWS), U.S. Army Corps of Engineers (ACE), Environmental Design and Research (EDR), New York State Department of Environmental Conservation, developers (PPM and Horizon), and others. Representatives from some or all of these groups have been included in a Technical Advisory Committee (TAC), which has the responsibility of reviewing and commenting on progress reports, annual reports, and other updates from this project.


    This is typical of wildlife studies at wind farm sites. Studies are often attacked by anti-wind groups on grounds that they are carried out by consulting firms that are supposedly pro-industry. However, a Technical Advisory Committee with government agency experts who have no vested interest is a common practice.

    The methods used include searches under turbines in concert with studies of carcass removal rates (scavenging) and searcher efficiency rates.


    Again typical: the firm conducting the study runs tests to determine how quickly birds and bats are removed from the site by predators and how good the individuals doing the ground searches are at finding dead animals.

    The Maple Ridge project currently consists of 195 1.65-MW turbines, for a total of 322 MW of nameplate generating capacity. Each turbine is approximately 400 feet (122 meters) in height.

    As with most turbine facilities across the United States, the numbers of fatalities of night migrants was fairly low at the Maple Ridge facility. Determining the exact number of night migrants is difficult, however, as the birds involved may be resident breeders. The numbers were especially small in comparison with fatality rates of these birds at tall, guyed communication towers in the Midwestern and eastern United States where fatalities sometimes involve hundreds or even thousands of birds in a single night or migration season.


    Why are the numbers so low? We don't know for sure, but one major reason appears to be that turbines are lighted differently than communications towers: turbines have red flashing (strobe) lights, while communication towers also have steady-burning red lights. The steady-burning lights appear to attract migrating birds on foggy nights. Also, communications towers have miles of guy wire, a major hazard for disoriented birds circling a light, and are greater in height.

    Those towers have two types of Federal Aviation Administration lighting (steady burning red L-810 and flashing red incandescent beacons – L-864), multiple sets of guy wires, and are almost always in excess of 500 feet (152 m). We conducted tests of night migrant incidents found at lit and unlit towers for both the 30 7-day search sites and the 10 1-day search sites . . . If the red flashing beacons attracted birds to turbines, a disproportionately greater number of these fatalities would have been found at turbines with lights and, or large-scale, multiple fatality events would have been observed. We did not see a clear relationship between the numbers of night migrant fatalities and the presence of L-864 red flashing beacons on turbines.
    .

    The Maple Ridge report also comments briefly on the question of whether bird collisions with wind turbines affect overall populations (total numbers) of bird species:

    The eastern population of the Golden-crowned Kinglet, which was found most often during searches, is estimated to be decreasing across the US but stable or increasing in the Eastern US. (Table 21). Given the overall population level of this species (estimated 34 million birds), it is difficult to presume that collision mortality at the Maple Ridge [wind farm] has a significant adverse effect on population levels, even with respect to cumulative impacts of fatalities from many wind plants.

    The population of the second most common find (Red-eyed vireo) is listed as increasing, with an estimated overall population level of 140 million. The only two species listed as significantly decreasing are the Red-winged Blackbird and the Common Grackle, both very common and wide ranging species.


    Wind turbines remain the single most thoroughly studied of all sources of human-related bird mortality--see, for example, the WEST, Inc., wind/avian studies collection. Thousands of birds do die in collisions (with thousands of wind turbines) at wind farms across the U.S., but it is clear that wind farms remain an insignificant threat to birds, and that birds and wind power--even large amounts of wind power--can coexist. A recent National Academy of Sciences report found that in 2003, wind turbine kills amounted to less than .003% (three of every one hundred thousand) human-related bird deaths. At the same time:

  • A 2004 international scientific study concluded that one million species might be driven to extinction by global warming by the year 2050.

  • Wind energy is one of the technology "wedges" that other scientists have identified as being necessary to avoid this nightmare scenario.

  • Wind power also reduces air pollution, water pollution, mining and drilling--all of which have negative effects on wildlife.

    Wind power challenges our ability to be numerate, to maintain perspective, to be rational and not allow the perfect to be the enemy of the very, very good. I believe how we deal with it will determine whether we are indeed up to the task of ending global warming.

    Regards,
    Tom
  • Saturday, June 09, 2007

    Wind Power and Land Use

    Quick factoid: for wind power to provide 20% of U.S. electricity, roughly 33,000 square miles of land would be required. This is an amount of land equal to approximately one-third of Colorado, one-third of Wyoming, or one-fifth of Montana. Further, 95% to 98% of that 33,000 square miles would continue to be available for farming or ranching--the actual footprint of the wind turbines and supporting equipment (including service roads) is 2% to 5% of the land within a wind farm's boundary. Conclusion: availability of land, in gross terms, is not a constraint to onshore development of large amounts of wind power in the U.S.

    Wednesday, June 06, 2007

    Department of Interior Opposes Anti-Wind Provision of Rahall Bill

    The U.S. Department of the Interior weighed in yesterday on the anti-wind-power section of legislation sponsored by House Natural Resources Committee Chairman Nick J. Rahall II and currently pending before the committee.

    Said the Department's letter in part,

    Subtitle D. Ensuring Safety of Wildlife With Respect to Wind Energy.

    We recommend subtitle D be deleted.

    Sections 231 through 235 would require the Secretary of the Interior, acting through the Fish and Wildlife Service, to promultate regulations that establish minimum standards for siting, construction, monitoring, and adaptive management that must be satisfied by all wind projects to avoid, minimize, and mitigate adverse impacts on migratory birds, bats, and other wildlife. The regulations would need to be promulgated within 180 days after enactment of H.R. 2337. We agree it is important that wind power facilities seek to minimize and mitigate adverse impacts on migratory birds, bats and other wildlife. In fact, the Endangered Species Act, the Migratory Bird Treaty Act, and other federal statutes must be complied with. However, the Department of the Interior opposes this subtitle as its enactment would be premature.

    On March 13, 2007, the Secretary of the Interior announced the Formation of a Federal Advisory Committee Act (FACA) Committee, the Wind Turbine Guidelines Advisory Committee, to look at the very issues raised under Section 231. The FACA Committee consists of a broad group of representatives, including those from State and Federal agencies, environmental groups, and industry organizations. They will be carefully considering all of the issues related to wind energy facilities and making recommendations whether the guidelines can be voluntary, mandatory, or may require regulations. Therefore, we believe it is premature for Congress to legislate this process and instead we would like Congress to allow the FACA process to move forward.


    If you would like to learn more about Subtitle D, which would basically stop the wind industry dead in its tracks for 6 months to as long as three years by making it a federal crime to generate clean wind energy without a permit from the federal government, go here. To take action to oppose this ill-advised legislation, go here.

    Regards,
    Tom
    Utilities Talk More Wind


    Airtricity Chairman Pat Wood, moderator of the "Utility Leadership in Wind Energy Development" session at the WINDPOWER 2007 Conference & Exhibition


    Utilities are turning to wind—even as the “centerpiece of their portfolio” in some cases—because customers want it and policy calls for it, said utility and industry officials at the WINDPOWER 2007 Conference & Exhibition on Tuesday.

    The opening session at WINDPOWER 2007, “Utility Leadership in Wind Energy Development,” brought together officials from both investor-owned and municipal utilities, in addition to the Bonneville Power Administration. Rounding out the panel was California Independent System Operator President and CEO Yakout Mansour.

    “Across the country, the utility embrace of wind power is now a national phenomenon,” said Airtricity Chairman Pat Wood, a former chairman of the Federal Energy Regulatory Commission and the panel’s moderator. Wood set the stage for the discussion by pointing out that utilities, the entities that ultimately deliver the power to the end user, are a crucial piece of the wind equation. “If the utility industry . . . is not engaged in this effort, we can’t go anywhere,” he said.

    Thankfully, many utilities are engaged—for one, Xcel Energy, the No. 1 provider of wind energy to customers in the U.S. The utility will have 2,800 MW in wind capacity for its customers by the end of 2007, said Paul Bonavia, president of Xcel Energy’s utilities group. That number will rise to 6,000 MW by 2020, he said. “We listen to our customers, and they’re telling us this is something that they want and value,” he said. “We would rather take our bet on technologies of the future than on technologies of the past.”

    That commitment to the customers is what drives utilities, who are primarily concerned with such issues as reliability and the rates they must charge customers. Bonneville Power Administration Administrator Stephen Wright, who referenced a recent study in which the organization was involved concluding that 6,000 MW of wind is “technically feasible,” expressed concern over the large amount of load growth taking place in several regions of the country at a time when resource constraints are increasing. “We need the wind industry to work with us to make sure we don’t have a reliability crisis and we don’t have a rate crisis,” he said.

    The need for new generation resources was echoed by Yakout Mansour, who as the president and CEO of the California Independent System Operator is involved in the state’s quest to achieve its recently enacted ambitious renewable portfolio standard goals. In a mere five years, he said, the state will need to add over 7,000 MW of renewable energy capacity. “I need your help, I need it badly, and I need it now,” he told the audience.

    Utility officials were eager to use the forum as an opportunity to communicate such perspectives and needs. The Sacramento Municipal Utility District, which owns its own wind, is looking for ways to add more wind onto its system through diversifying geographically (its turbines are primarily in one area) and other means. A “wish list” from Sacramento Municipal Utility District General Manager Jan Schori included improved forecasting, a sentiment echoed by Wright. Day-ahead forecasting, Schori said, is “not that good right now.” She also said she would like to see longer warranty and service agreements on turbines and equipment, which she said are more common in Europe. “We need you to think more like a utility,” she said.

    Schori also expressed a common theme at WINDPOWER 2007: “We all need to cooperate on the transmission problem.”

    As participants acknowledged the needs and challenges ahead, one theme that emerged was how several utilities—namely, those represented on the panel—now consider wind a key piece of their generation mix. Bonavia called wind “the centerpiece of our portfolio.” Asked how more utilities might become more comfortable with adding wind onto their systems, Bonavia said, “We need to have success stories.”

    --from the American Wind Energy Association's Wind Energy Weekly, special WINDPOWER 2007 Conference & Exhibition Daily Edition.

    Wednesday, May 30, 2007

    Wind-Powered Pizza Leads Green Business Wave

    Yesterday's Baltimore Sun includes an AP wire story on Galactic Pizza, a Minnesota pizza delivery firm that features electric cars and buys wind power.

    Galactic Pizza emphasizes environmental sustainability and protection in its business practices, uses organic and locally grown ingredients when possible, and donates a small portion of its profit to hunger relief and other charities.

    "I wanted to do good for people, I wanted to not, at the very least, be a burden on society and try to even contribute to it," said Pete Bonahoom, Galactic Pizza's 29-year-old owner.

    Excellent short article, check it out. Additional resource: the Center for Small Business and the Environment.

    Readers who wish to buy wind power to cover their own energy needs can do so. If you don't feel that you can afford to go 100% wind, a very inexpensive option is to buy 10% or 20%. For the average household, the cost will be 5-10 cents a day . . .

    For info on green power suppliers, see "Your Electric Choices" at www.green-e.org.

    Regards,
    Tom