Testing the effectiveness of an experimental acoustic bat deterrent at the Maple Ridge wind farm

Lisa

June 24, 2008 12:40:23 PM

This paper documents the results of an in-field test at the Maple Ridge wind energy facility in New York to determine the effectiveness of using an experimental acoustic bat deterrent to reduce bat mortality. The executive summary excerpted below suggests the results were inconclusive. Most bat experts remain unconvinced that acoustic deterrence will be a suitable mitigation approach to reduce bat fatalities at existing turbines.

The Overlooked Environmental Cost of a Wind Generation Portfolio to Serve the Need for Power

hughkemper

June 30, 2007 8:00:00 PM

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.

Less For More: The Rube Goldberg Nature of Industrial Wind Development

hughkemper

December 20, 2006 1:42:30 PM

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.

AES Corporation: Wind Generation Review

hughkemper

December 11, 2006 8:14:12 AM

Operations of Electric Power Systems with High Penetration of Wind Power: Risks and Possible Solutions

hughkemper

November 30, 2006 7:00:00 PM

This paper provides an assessment of wind power effects on technical and economic performance of today’s electric power systems. While small penetration of wind power is unlikely to cause any qualitative changes, significant percent of wind-generated power will require major rethinking of generation dispatch and automatic generation control, in particular. We summarize technical risks, as well as the economic implications on total cost of providing power to customers. The discussion is presented for both traditional fully regulated utilities and for the portions of the electric power interconnection which are undergoing restructuring. The paper suggests that the ultimate benefit of wind power to the customers will depend to a large extent on how well are today’s operating practices adjusted to make the most out of the available resources, including the intermittent wind power. Moreover, we suggest that an analysis could be done to determine the amount of wind power for a given system beyond which benefits are difficult to capture because of the necessary additional infrastructure cost.

What Does Wind Really Cost?

hughkemper

October 20, 2006 12:07:06 PM

Editor's Note Presented on October 20th during the 2006 Electric Market Forecasting Conference sponsored by EPIS, Inc. this addresses, in part, the issue of whether emissions are reduced with the addition of industrial wind energy. This is a large pdf file (8.55MB) and is available via the weblink below.

Report to Congress on Renewable Energy Resource Assessment Information for the United States

hughkemper

September 30, 2006 8:00:00 PM

This report provides an assessment of the status of renewable energy resource information and products for the United States. This work was completed for the U.S. Department of Energy (DOE) by the National Renewable Energy Laboratory (NREL) under Contract No. DE-AC3699-GO10337.

The Effect of Windmill Farms On Military Readiness

hughkemper

August 31, 2006 8:00:00 PM

This report focuses on the effects of wind farms on air defense and missile warning radars and the resulting potential impact on military readiness. Its scope is limited to these specific subjects and is based on the current level of understanding regarding interactions between such defense systems and state-of-the-art wind turbines.........
The results from those flight trials documented that state-of-the-art utility-class wind turbines can have a significant impact on the operational capabilities of military air defense radar systems. The results demonstrated that the large radar cross section of a wind turbine combined with the Doppler frequency shift produced by its rotating blades can impact the ability of a radar to discriminate the wind turbine from an aircraft. Those tests also demonstrated that the wind farms have the potential to degrade target tracking capabilities as a result of shadowing and clutter effects.

False Wind Industry Claims about the Integration in Electric Grids of the Intermittent, Volatile & Unreliable Electricity from Wind Turbines

hughkemper

August 29, 2006 8:07:56 AM

...the wind industry and other wind energy advocates have, for years, greatly overstated the energy and environmental benefits of wind energy and understated the true environmental, ecological, economic, scenic, and property value costs. They have misled the public, media and government officials – and created a “popular wisdom” about wind energy and promoted the creation of faulty government policies, tax breaks and subsidies that will take years to correct. This brief paper deals with only two of the areas where the industry and its supporters use half-truths and false or misleading information.

Clipper Windpower: The Economics of Wind Energy

hughkemper

June 08, 2006 10:56:43 AM

Clipper's powerpoint presentation at the 2006 Wind Powering America Summit on June 8 in Pittsburgh, PA