Library filed under General from Denmark

Danish island touts clean energy, but reality sets in

SAMSOE, Denmark -- In the late 1990s, Denmark set out to turn this farming and summer-vacation island in the Kattegat Sea into a showcase for clean energy. The government dangled generous financial subsidies. A former environmental studies teacher, Soren Hermansen, was hired to persuade residents to invest in wind turbines, solar panels, electric cars and giant straw-burning furnaces.
9 Feb 2006

Working Paper: Utility-scale Wind Power: Impacts of Increased Penetration

Dti3_20robin_20oakley_20atl_1__thumb This working paper is made available by the Resource and Environmental economics and Policy Analysis (REPA) Research Group at the University of Victoria. REPA working papers have not been peer reviewed and contain preliminary research findings. They shall not be cited without the expressed written consent of the author(s). Editor's Note: The authors’ conclusion regarding ‘effective capacity’, i.e. the measure of a generator’s contribution to system reliability that is tied to meeting peak loads, is that it “is difficult to generalize, as it is a highly site-specific quantity determined by the correlation between wind resource and load” and that ‘values range from 26 % to 0% of rated capacity.” This conclusion is based, in part, on a 2003 study by the California Energy Commission that estimated that three wind farm aggregates- Altamont, San Gorgonio and Tehachpi, which collectively represent 75% of California’s deployed wind capacity- had relative capacity credits of 26.0%, 23.9% and 22.0% respectively. It is noteworthy that during California’s Summer ’06 energy crunch, as has been widely publicized in the press, wind power produced at 254.6 MW (10.2% of wind’s rated capacity of 2,500MW) at the time of peak demand (on July 24th) and over the preceding seven days (July 17-23) produced at 89.4 to 113.0 MW, averaging only 99.1 MW at the time of peak demand or just 4% of rated capacity.
1 Jun 2005

Why energy conservation trumps windmills

Why_energy_conservation_thumb If you really want to cut energy consumption, reduce pollution, improve public health and protect our environment, it’s time to contact your elected officials, educate them about the lessons of Denmark, Germany and elsewhere, and tell them you want tougher energy efficiency measures instead of wind power plants. Otherwise, in the next few years, you’ll be looking at wind turbines in some of your favorite places, with the knowledge that they’re doing little more than funneling your tax dollars to a few lucky corporations and landowners, and away from better solutions.
1 Feb 2005

The Impact of Large Scale Wind Power Production On the Nordic Electricity System

Holttinen-nordicimpact_thumb This thesis studies the impact of large amounts of wind power on the Nordic electricity system. The impact on both the technical operation of the power system and the electricity market are investigated.Editor's Note:The author's focus on the averaging effect of a multitude of small wind turbines spread over a large geopgraphical area understates the reliability problems associated with wind power, particularly the cascade effect as wind turbines drop off-line.
17 Dec 2004

Danish wind power – a personal view

Referenced_w.da%c3%89_experience_thumb Denmark (population c. 5.4 million) is a leading pioneer in renewable energy. Since 1985 it has set up about 3,100 MW of wind capacity. Of this 420 MW are sited offshore (Nielsen, 2004), and more is planned for the near future (Bendtsen and Hedegaard, 2004). Over the same period many small gas- or bio-fuelled CHP plants were deployed, primarily for local district heating but also to produce electricity. Interest in solar power is also considerable.
22 Sep 2004

Cap Gemini Ernst & Young launches European deregulation Index

In conclusion, this study has shown that in many countries deregulation is having the expected effect of increased competition leading to price reduction. However, it is evident that pricing in markets depends not just on the status of deregulation, but also on the broader aspects of competition. Key factors here include the balance of supply and demand, generation fuel costs, the learning process that new markets go through, competition within different market segments and the costs of access to transmission and distribution networks. Deregulation is a long-term process that requires sustained attention.
1 Nov 2002

Wind Power: Capacity Factor, Intermittency, and what happens when the wind doesn’t blow?

Rerl_fact_sheet_2a_capacity_factor_thumb Wind turbines convert the kinetic energy in moving air into rotational energy, which in turn is converted to electricity. Since wind speeds vary from month to month and second to second, the amount of electricity wind can make varies constantly. Sometimes a wind turbine will make no power at all. This variability does affect the value of the wind power……Editor’s Note: This ‘fact sheet’ is, on the whole, a comparatively fair report. The definitions provided for capacity factor, efficiency, reliability, dispatchability, and availability are useful. Its discussion of back-up generation, marginal emissions and Germany & Denmark, however, is disingenuous as is, to a lesser degree, its discussion of capacity factor and availability. IWA's comments (updated October '06) on these issues follow selected extracts from the 'fact sheet' below.
1 Jan 1970

https://www.windaction.org/posts?location=Denmark&p=12&topic=General
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