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California ISO integration of renewable resources report (Draft)
August, 2007
by CA-ISO, GE Energy Consulting, Pacific Northwest National Laboratory, AWS Truewind
This report details transmission and operating issues and recommendations for integrating renewable resources on the CAISO Control Grid. The CAISO discusses the gross variations in electric production from wind energy due to the intermittent nature of the resource. During periods of highest demand, the winds drop off.
Ecological impacts of wind energy development on bats: questions, research needs, and hypotheses
August 6, 2007
by Thomas H. Kunz et al
This important peer-reviewed paper written by bat expert Dr. Thomas H. Kunz et al identifies the significant risk wind turbines pose for migratory and local bat populations in the mid-Atlantic Highlands region of the United States. The projected number of annual fatalities of bats at wind energy facilities in the Highlands in the year 2020 can reach up to 111,000 bats.
The Overlooked Environmental Cost of a Wind Generation Portfolio to Serve the Need for Power
June, 2007
by Lincoln Wolverton and Raymond Bliven
The November passage of Initiative 937 adds Washington to the states with renewable portfolio standards. Wind-powered generation is a resource of choice in meeting renewable standards, and it has been highly touted for its environmental benefits. Considered in isolation, the environmental benefits of a wind resource are undoubtedly warranted. However, it is misleading to consider wind on an isolated basis—that is, outside of the context of the full power-supply portfolio that is necessary to serve load. In the context of an integrated portfolio, much of the environmental benefit disappears and may even be non-existent as compared with other resource portfolio choices. In particular, a full assessment of the impact of wind resources on the environment necessitates a look at the energy consequences of adding wind-generation to an integrated portfolio in the context of meeting load. Accounting for energy, it is likely that there is no significant environmental difference between a resource portfolio adding wind generation and one adding high-efficiency combined-cycle gas turbines. It is also likely that the wind-based portfolio results in little reduction, if any, in the need for fossil fuels and therefore little reduction in the exposure to their price swings and environmental consequences. That is, the emissions and fossil-fuel impacts of a wind-based portfolio appear little better than a non-wind-based portfolio.
Editor's Note: This paper makes a critically important point re. wind's purported environmental benefits, i.e. "...it is misleading to consider wind on an isolated basis—that is, outside of the context of the full power-supply portfolio that is necessary to serve load. In the context of an integrated portfolio, much of the environmental benefit disappears and may even be non-existent as compared with other resource portfolio choices." In short, wind's environmental benefits (if any) will be grid-specific depending on the emissions generated (if any) of the reliable generating source(s) required to back it up.
California’s Greenhouse Gas Policies: Local Solutions to a Global Problem?
March, 2007
by James Bushnell, Carla Peterman, Catherine Wolfram
California is in the process of implementing a broad portfolio of policies and regulations
aimed at reducing greenhouse gas emissions. This paper summarizes the initiatives likely
to impact the electricity generating sector. We present calculations showing that there is
a substantial risk that two of the most prominent policies could simply result in a
reshuffling, on paper, of the electricity generating resources within the West that are
dedicated to serving California. This reshuffling is different from the conventional
leakage problem as it involves no physical changes to the way electricity is generated
across regulated and unregulated regions, but is instead driven by a contractual
reshuffling of who buys power from whom. The problem is similar to an ineffective
consumer boycott. The problem is still present but less severe if more Western states
adopt carbon limitations. We also show that some of the least market-based initiatives,
the renewable portfolio standards (RPS), are likely to have the biggest near-term impact
on the carbon-intensity of electricity generation in the West. Thus the scale of RPS
programs may be limiting the potential role of non-renewable options in reducing carbon
emissions from the electricity sector.
An indictment of the Scottish Executive and regulatory incompetence and indifference......‘One is left with a clear impression of inertia, bungling, duplicity, poor communication, procrastination, obfuscation and, quite frankly, shoddy and incorrect decision-taking both in temporal and technical terms'.
Lempster Mountain Wind Power Project: Direct Pre-filed Testimony of Lisa Linowes
February 7, 2007
by Lisa Linowes
Why did you petition to become an intervenor in this matter before the NH SEC?
With New Hampshire’s recent reinstatement of PILOT agreements and legislative efforts to a Renewable Portfolio Standard, the regulatory groundwork is being laid for more wind facilities to enter the state. Yet, New Hampshire, like many states, has no consistent regulatory process in place for reviewing these projects to ensure our environmental, societal, and economic interests are protected. The work the NH SEC has agreed to undertake in reviewing this application is precedent setting. How the committee approaches its review and the weight it places on arguments presented by all sides will impact other developments in the State as pertains to renewable energy projects.
There are a multitude of conflicting issues at play when considering any wind project. My commitment to this process is to help provide, to the best of my ability, valuable and timely information that will assist the Committee in making an informed decision on this application.
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Operational Impacts of Integrating Wind Generation into Idaho Power's Existing Resource Portfolio
January, 2007
by EnerNex Corporation for Idaho Power Company
The objective of this study is to assess the costs that could be incurred by Idaho Power in modifying its operations at the Hells Canyon Complex for “integrating” or incorporating wind energy onto its system.
The intermittent and unpredictable nature of wind generation requires a utility to have generating resources available which can increase or decrease generation on short notice in order to keep the interconnected power system balanced. While hydroelectric power plants are well suited for performing this function, there are operational impacts and costs associated with operating Idaho Power hydroelectric plants in a manner that maintains reliability and facilitates integration of energy from wind generation facilities.
The issues surrounding the integration of wind generation on interconnected power systems are numerous and complex. This study provides a first step toward understanding those issues.
The intermittent and unpredictable nature of wind generation requires a utility to have generating resources available which can increase or decrease generation on short notice in order to keep the interconnected power system balanced. While hydroelectric power plants are well suited for performing this function, there are operational impacts and costs associated with operating Idaho Power hydroelectric plants in a manner that maintains reliability and facilitates integration of energy from wind generation facilities.
The issues surrounding the integration of wind generation on interconnected power systems are numerous and complex. This study provides a first step toward understanding those issues.
Less For More: The Rube Goldberg Nature of Industrial Wind Development
December 20, 2006
by Jon Boone, Oakland (MD)
Rube Goldberg would admire the utter purity of the pretensions of wind technology in
pursuit of a safer modern world, claiming to be saving the environment while wreaking
havoc upon it. But even he might be astonished by the spin of wind industry spokesmen.
Consider the comments made by the American Wind Industry Association.s Christina
Real de Azua in the wake of the virtual nonperformance of California.s more than 13,000
wind turbines in mitigating the electricity crisis precipitated by last July.s .heat storm..
.You really don.t count on wind energy as capacity,. she said. .It is different from other
technologies because it can.t be dispatched.. (84) The press reported her comments
solemnly without question, without even a risible chortle. Because they perceive time to
be running out on fossil fuels, and the lure of non-polluting wind power is so seductive,
otherwise sensible people are promoting it at any cost, without investigating potential
negative consequences-- and with no apparent knowledge of even recent environmental
history or grid operations.
Eventually, the pedal of wishful thinking and political demagoguery will meet the renitent metal of reality in the form of the Second Law of Thermodynamics (85) and public resistance, as it has in Denmark and Germany. Ironically, support for industrial wind energy because of a desire for reductions in fossil-fueled power and their polluting emissions leads ineluctably to nuclear power, particularly under pressure of relentlessly increasing demand for reliable electricity. Environmentalists who demand dependable power generation at minimum environmental risk should take care about what they wish for, more aware that, with Rube Goldberg machines, the desired outcome is unlikely to be achieved. Subsidies given to industrial wind technology divert resources that could otherwise support effective measures, while uninformed rhetoric on its behalf distracts from the discourse.and political action-- necessary for achieving more enlightened policy.
Eventually, the pedal of wishful thinking and political demagoguery will meet the renitent metal of reality in the form of the Second Law of Thermodynamics (85) and public resistance, as it has in Denmark and Germany. Ironically, support for industrial wind energy because of a desire for reductions in fossil-fueled power and their polluting emissions leads ineluctably to nuclear power, particularly under pressure of relentlessly increasing demand for reliable electricity. Environmentalists who demand dependable power generation at minimum environmental risk should take care about what they wish for, more aware that, with Rube Goldberg machines, the desired outcome is unlikely to be achieved. Subsidies given to industrial wind technology divert resources that could otherwise support effective measures, while uninformed rhetoric on its behalf distracts from the discourse.and political action-- necessary for achieving more enlightened policy.
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