What is it about?

In this work the effects of energy storage to reduce wind power fluctuations are investigated. Integration of the energy storage with wind power is modelled using a filter approach in which a time constant corresponds to the energy storage capacity. The analyses show that already a relatively small energy storage capacity of 3 kWh (storage) per MW wind would reduce the short-term power fluctuations of an individual wind turbine by 10%. Smoothing out the power fluctuation of the wind turbine on a yearly level would necessitate large storage, e.g. a 10% reduction requires 2–3 MWh per MW wind.

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Perspectives

This work included transient analysis down to ca 1 s time step to understand how energy storage works with wind power.

Professor Peter D. Lund
Aalto University

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This page is a summary of: Effect of energy storage on variations in wind power, Wind Energy, January 2005, Wiley,
DOI: 10.1002/we.151.
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