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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.
Glenn Schleede has updated his 2006 white paper which discuses whether wind energy will reduce US reliance on oil. One of the claims often made by wind energy advocates is that greater use of wind energy for electricity generation will reduce US dependence on oil, including oil imports. In fact, adding more wind turbines will have no significant impact on US oil consumption. This update, based on the latest data from the US Energy Information Agency explains why the reduced oil use claim is false.
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.
This brief paper reviews and evaluates key aspects of energy policies and plans announced by New York State officials, and contrasts their electricity plans with those of the New York Independent System Operator (NYISO) which is responsible for the reliability of New York's electricity grid. Both sets of plans have major implications for the people of New York.
On Jun 12, MA DOER granted Hydro Quebec approval for 108MW of wind to be eligible for the MA Rec market. There is an additional 212MW of wind that is already operating and may soon follow. DOER's decision is attached. A number of folks familiar with the New England REC market believe this decision, to be followed by others, will seriously depress REC values.
This amendment was offered as a substitute for Subtitle D of the Rahall energy bill H.R. 2337 regarding wind energy.
DOE released its first Annual Report on U.S. Wind Power Installation, Cost, and Performance Trends: 2006 on May 31st, providing an overview of developments and trends in the U.S. wind power market. The report analyzes trends in the marketplace, including wind power prices compared to wholesale electricity prices, project costs, turbine sizes, and developer consolidation. It also describes the increasing performance of wind projects, current ownership and financing structures, and trends among major wind power purchasers.
The report notes that U.S. wind power capacity increased by 27 percent in 2006 and that the United States had the fastest-growing wind power capacity in the world in 2005 and 2006. For the second straight year, the United States led the world by installing 2,454 megawatts of wind power capacity in 2006—16 percent of the capacity installed worldwide that year—followed by Germany, India, Spain, and China. Leading the way in annual growth capacity in the United States are Texas, Washington, and California.
The complete report available in sections.
A candid assessment of wind energy's limited capacity credit (a.k.a. effective capacity), i.e. the utility industry’s standard for measuring a generating source's contribution to system reliability and peak demand