Monetary‐based availability: A novel approach to assess the performance of wind turbines

With the background of numerous wind turbines phasing out of fixed feed‐in tariffs in the following years and an increasing share of negative electricity market prices on the spot market, the availability definitions of “time‐based” and “production‐based” availability are possibly no longer suitable...

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Bibliographic Details
Published inWind energy (Chichester, England) Vol. 23; no. 1; pp. 77 - 89
Main Authors Lutz, Marc‐Alexander, Görg, Philip, Faulstich, Stefan, Cernusko, Robert, Pfaffel, Sebastian
Format Journal Article
LanguageEnglish
Published Bognor Regis John Wiley & Sons, Inc 01.01.2020
Subjects
Availability
continued operation
Downtime
Electricity
Electricity pricing
maintenance
Revenue
spot market
Turbines
Wind power
wind turbine
Wind turbines
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Summary:With the background of numerous wind turbines phasing out of fixed feed‐in tariffs in the following years and an increasing share of negative electricity market prices on the spot market, the availability definitions of “time‐based” and “production‐based” availability are possibly no longer suitable for assessing the overall performance of a wind turbine. This paper introduces a novel definition: the “monetary‐based” availability. The differences between the established definitions and the “monetary‐based” availability are highlighted by comparing the measures on an empirical data set. Furthermore, results on the impact of scheduling planned downtimes towards a monetary‐based optimum show that revenues can be increased. By shifting only a small share of the annual downtime to an optimum to maximize the revenue from electricity, a strong increase in additional earnings and thereby an increasment of the monetary‐based availability can be achieved.
ISSN:1095-4244
1099-1824
DOI:10.1002/we.2411