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Energy Policy
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.
Thirty years earlier, another energy shock – the 1973 OPEC oil embargo – provided a more protracted lesson in the importance of energy to our overall well-being. The recommendations in this Plan all stem from the fundamental importance of energy to the State’s economy and the well-being of its citizens. Because energy – especially electricity – remains a fundamental driver of the VT economy, competitively priced energy continues to be vital, since differentials in energy costs can be a determinant in relative competitiveness of one region over another.
The disparity between the average electric rates Vermont’s residential and business customers pay, and the average rates paid by customers in the U.S. as a whole, has steadily increased. In 1990, Vermont’s residential electric rates were about 15 percent higher than the U.S. average, commercial rates were about 20 percent higher, and industrial rates were some 35 percent higher than the U.S. average. Today, that disparity has grown to about 50 percent for all three classes"....
Hugh Sharman is an energy consultant, based in Denmark. Most of Incoteco’s work is done for and with large energy companies seeking innovative environmental solutions to practical problems. An example is its leading role in the formulation and development of the “CO2 for EOR in the North Sea” (CENS) project during 2001. During 2004, Incoteco (Denmark) ApS completed a wind-energy related study for the Danish Energy Agency that was also supported by a number of important Scandinavian energy companies. Its purpose was to find more effective uses for the large wind power surplus that is generated in West Denmark.
The Renewable Energy Foundation is a newly created foundation which has arisen from widespread and growing public concern that the current renewables energy policy is in itself unbalanced, and causing subsequent imbalances in the rest of the energy sector. REF encourages the development of renewable energy and energy conservation whilst safeguarding the landscapes of the United Kingdom from unsustainable industrialisation. In pursuit of this goal, REF highlights the need for an overall energy policy that is balanced, ecologically sensitive and effective.
• Emissions arising from fabrication (steel smelting, forging of turbine columns, the manufacture of blades and the electrical and mechanical components);
• Emissions arising from construction (transportation of components, quarrying, building foundations, access tracks and hard standings, commissioning);
• The indirect loss of CO2 uptake (fixation) by plants originally on the surface of the site but obliterated by construction activity including the destruction of active bog plants on wet sites and deforestation;
• Emissions due to the indirect, long-term liberation of CO2 from carbon stored in peat due to drying and oxidation processes caused by construction of the site.
It is important to recognise that peat is a major store of carbon accumulated from dead plant remains over many millennia. It is held in perpetuity because the bog’s wetness and acid conditions prevent the access of oxygen and inhibit the growth of bacteria which would otherwise rot the vegetation. Draining peat for construction reverses both these long-term processes: the soil is exposed to the air, the carbon is converted to CO2 and released slowly to the atmosphere.
Several papers from the wind industry in Denmark and the UK have addressed the first two points with estimates of payback time ranging from about six to 30 months.
However, the industry rarely, if ever, considers the last two. This is a fundamental omission as their contribution to the overall CO2 debt, in particular the last, can be far greater than all the others put together. This paper outlines a procedure for quantifying it.
The guide has been prepared to enable anyone with access to the Environmental Statement (ES) that forms part of a Planning Application (PA) for a wind farm to estimate its CO2 debt. (If some of the requisite information proves to be unavailable, this ought to provide grounds for postponing consideration of the application and the commissioning of further assessment.)
The results of the calculations described should be submitted to planning authorities or Public Inquiries as part of the arguments used in assessing the merits and demerits of an application.
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