University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Optimal storage, investment and management under uncertainty - It is costly to avoid outages!

Optimal storage, investment and management under uncertainty - It is costly to avoid outages!

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MESW02 - Electricity systems of the future: incentives, regulation and analysis for efficient investment

We show how electricity storage is operated optimally when the load net of renewable output is uncertain. We estimate a diurnal Markov-process representation of this residual load in Germany in 2011 to 2015 on an hourly basis and design a simple dynamic stochastic electricity system model with non-intermittent generation technologies and storage. We derive the optimal storage, generator output and capacity levels.  If storage capacity replaces some generation capacity, the optimal storage strategy must balance arbitrage (between periods of high and low marginal cost) against precautionary storage to ensure energy is available throughout a long peak in net demand. We then solve the model numerically under realistic conditions and compare the results to perfect foresight findings. We show that a perfect foresight model would over-estimate the cost-saving potential of energy storage by 18%, as it takes up arbitrage opportunities that ignore the need for precautionary storage.

Joint work with Joachim Geske.

This talk is part of the Isaac Newton Institute Seminar Series series.

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