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Analysis operating and maintenance cost of Danish wind turbines in 1993; Analyse af danske vindmoellers driftsudgifter 1993

Technical Report:

Abstract

A study of operation and maintenance (O and M) cost of Danish wind turbines has been carried out. The study is based on a questionnaire survey by the wind turbine owners association. The study shows a significant decline in the O and M cost from 55 kW machines installed in 1980-87 to modern machines. In 1993, the average total O and M cost for 55 kW and 150 kW turbines was approximately 0.22 DKK/kWh and 0.07 DKK/kWh, respectively. For 150 kW turbines, insurance and administration costs amounted to 0.04 DKK/kWh while repair and maintenance costs came to 0.03 DKK/kWh. In 1993, repair and maintenance cost were significantly higher for older vintages of 55 kW and 150 kW turbines, but it is not possible based on this study to conclude whether increasing O and M costs generally comes with increasing age. The statistical basis of this study is not large enough to conclude whether there are positive scale effects for ST`s from 105 kW. Similarly, because of relatively few large WT are older than 10 years, it is not possible based on this study to predict the size of major future repair costs/reinvestments. To estimate the O and M costs more  More>>
Authors:
Publication Date:
Oct 01, 1994
Product Type:
Technical Report
Report Number:
RISO-R-776(DA)
Reference Number:
SCA: 170400; PA: DK-94:001728; EDB-95:013348; SN: 95001301470
Resource Relation:
Other Information: PBD: Oct 1994
Subject:
17 WIND ENERGY; HORIZONTAL AXIS TURBINES; OPERATING COST; COMPILED DATA; DENMARK; MAINTENANCE; POWER RANGE 10-100 KW; POWER RANGE 100-1000 KW; STATISTICAL DATA; 170400; ECONOMIC, INDUSTRIAL, AND BUSINESS ASPECTS
OSTI ID:
10105161
Research Organizations:
Risoe National Lab., Roskilde (Denmark). Test Station for Wind Turbines
Country of Origin:
Denmark
Language:
Danish
Other Identifying Numbers:
Other: ON: DE95723835; ISBN 87-550-2020-8; TRN: DK9401728
Availability:
OSTI; NTIS; INIS; Also available from Risoe Library, P.O. Box 49, DK-4000 Roskilde, Denmark
Submitting Site:
DK
Size:
44 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Godtfredsen, F. Analysis operating and maintenance cost of Danish wind turbines in 1993; Analyse af danske vindmoellers driftsudgifter 1993. Denmark: N. p., 1994. Web.
Godtfredsen, F. Analysis operating and maintenance cost of Danish wind turbines in 1993; Analyse af danske vindmoellers driftsudgifter 1993. Denmark.
Godtfredsen, F. 1994. "Analysis operating and maintenance cost of Danish wind turbines in 1993; Analyse af danske vindmoellers driftsudgifter 1993." Denmark.
@misc{etde_10105161,
title = {Analysis operating and maintenance cost of Danish wind turbines in 1993; Analyse af danske vindmoellers driftsudgifter 1993}
author = {Godtfredsen, F}
abstractNote = {A study of operation and maintenance (O and M) cost of Danish wind turbines has been carried out. The study is based on a questionnaire survey by the wind turbine owners association. The study shows a significant decline in the O and M cost from 55 kW machines installed in 1980-87 to modern machines. In 1993, the average total O and M cost for 55 kW and 150 kW turbines was approximately 0.22 DKK/kWh and 0.07 DKK/kWh, respectively. For 150 kW turbines, insurance and administration costs amounted to 0.04 DKK/kWh while repair and maintenance costs came to 0.03 DKK/kWh. In 1993, repair and maintenance cost were significantly higher for older vintages of 55 kW and 150 kW turbines, but it is not possible based on this study to conclude whether increasing O and M costs generally comes with increasing age. The statistical basis of this study is not large enough to conclude whether there are positive scale effects for ST`s from 105 kW. Similarly, because of relatively few large WT are older than 10 years, it is not possible based on this study to predict the size of major future repair costs/reinvestments. To estimate the O and M costs more exactly, a larger empirical basis is needed. (au) (8 tabs., 17 ills., 11 refs.)}
place = {Denmark}
year = {1994}
month = {Oct}
}