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2001 European Wind Energy Conference and Exhibition EWEA Bella Center, Copenhagen, Denmark, 2-6 July 2001 6. CONCLUSION One of the main conclusions of this LCA project is that the model for a wind turbine has been improved since the LCA for the Danish heat and electricity in 1997 was conducted. One of the main reasons for this improvement is the improved data available for this assessment. A not very surprising conclusion is that the impact mainly originates from the production and disposal. It is found that the disposal scenario is very important to the environmental profile of the wind power. The foundation/tower and the nacelle are found to give the greatest contributions to the most impact. The foundation and tower are the two heaviest components in a wind turbine and primarily made of steel. The nacelle contains quite a lot of high-strength steel which contributes considerably to the total impact from the wind turbine. To continue this LCA work a new project is ongoing where the model will be even more refined and a comparison between a land-based and an offshore wind farm will be conducted. Furthermore the possibilities of using LCA results for environmental product optimisation and for Environmental Product Declarations will be investigated and tested. The project reported in this paper has been conducted jointly by Tech-wise A/S and Vestas Wind Systems A/S and is supported by the PSO funds 1999. 7. REFERENCES Tech-wise A/S, 2001 Livscyklusvurdering af vindmøller, PSO 1999 (Life Cycle Assessment of wind turbines) Elsam, Energi E2, Elkraft, Elfor, Eltra, Københavns Energi, NESA, VEKS and ELSAMPROJEKT (now Tech-wise A/S), 2000 Livscyklusvurdering af dansk el og kraftvarme. (Life Cycle Assessment of Danish Heat and Electricity)PDF Image | Organisations in Different Renewables
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