Library filed under Energy Policy
With limited reserves of only oil and gas and the perceived onset of global warming, Denmark has a great incentive to develop new technologies for exploiting alternative sources of renewable energy and reducing energy demand. One of its many options is the harnessing of wind energy - a route that it has explored in great detail. This report describes some serious problems encountered in the extensive deployment of wind turbines in Denmark, and briefly summarises published accounts of the experiences and opinions of variously implicated Danish and foreign organisations and bodies.
This paper analyses aspects of environmental policy in Denmark, including, among others, policy on surface water quality, clean air and support for renewable energy, waste disposal and transport policy. Environmental policies are an important priority in Denmark, with implementation often highly decentralised, but in some cases environmental objectives have been pursued at what seems a high price, perhaps through a wish to support the development of a domestic industry or to protect existing industry from loss of competitiveness. The paper criticises some of the arguments used in favour of this high cost approach in a number of contexts, including wind power subsidies, the carbon tax and the treatment of nutrient discharges from agriculture. The paper also discusses a number of innovative and efficient policies introduced or planned, for example the new approach to promoting renewable energy (including wind power) through tradable “green certificates” and a CO2 trading scheme in electricity production. In some areas, such as policy for non-hazardous waste, apparent expansion of the role of economic instruments (through a series of differentiated taxes on disposal) seems to be dominated in practice by quantitative targets which may not provide the best outcomes.
Operating reports on the 11 turbine Searsburg, Vermont Wind plant. The development report (Dec 1997) and the third year operating report (Dec 2000) are available at as downloads. The first year operating report (Dec 1998) is available at the web link.
The stubborn competitive gap between renewable generation and its rivals explains why renewable-energy lobbyists on both the state and federal levels are trying to get governments to set quotas, and not just continue or expand current subsidies.
Although the nation's wind potential is very large, only part of it can be exploited economically. The economic viability of wind power will vary from utility to utility. Important factors not addressed in this study that influence land availability and wind electric potential include production/demand match (seasonal and daily), transmission and access constraints, public acceptance, and other technological and institutional constraints. Editor's Note: Though dated, this is a worthwhile read if read carefully.
This status report released by the California Energy Commission discusses the status of the technology, current and proposed development, regulatory processes, issues hindering development, and recommended actions needed to resolve identified issues. The section of the report on Noise and Aesthetics is provided below. Audible and low frequency impulse noise were reported as problems with the turbines. The full report can be accessed from the links on this page.
environmental pressure groups adamantly oppose fossil fuel, nuclear and hydroelectric power plants. Renewable energy – from wind turbines, or little solar panels on huts – is the future for Third World countries, they insist. Their prescription is totally inadequate for any modern society, India’s Barun Mitra points out. It would also mean sacrificing hundreds of thousands of acres of scenic and wildlife lands to gargantuan windmills that slice and dice birds and bats by the thousands.
The Link Below will take you to a site where wind resource maps are available for most states.
This addresses the most important challenges confronting Eltra, the Transmission System Operator in Western Denmark.
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.