Fundamentals for Remote Structural Health Monitoring of Wind Turbine Blades - a Preproject

Annex A - Cost-Benefit for Embedded Sensors in Large Wind Turbine Blades

Lars Gottlieb Hansen and Lars Lading
 
Risø National Laboratory, May 2002, 37 p., ISBN 87-550-3045-9
Risø-R-1340(EN) 594 Kb
 

Abstract

This report contains the results of a cost-benefit analysis for the use of embed-ded sensors for damage detection in large wind turbine blades - structural health monitoring - (in connection with remote surveillance) of large wind turbine placed off-shore. The total operating costs of a three-bladed 2MW turbine placed offshore either without sensors or with sensors are compared. The price of a structural health monitoring system of a price of 100 000 DKK (per tur-bine) results in a break-even time of about 3 years. For a price of 300 000 DKK the break-even time is about 8 years. However, the cost/benefit analysis has large uncertainties.
 

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