Navid Azizan Ruhi

Opportunities for Price Manipulation by Aggregators in Electricity Markets

N. Azizan R., K. Dvijotham, N. Chen, and A. Wierman

IEEE Transactions on Smart Grid (TSG), 2017
ACM Performance Evaluation Review (PER), 2016 (Best Student Paper Award at the 2016 ACM GREENMETRICS)

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Aggregators of distributed generation are playing an increasingly crucial role in the integration of renewable energy in power systems. However, the intermittent nature of renewable generation makes market interactions of aggregators difficult to monitor and regulate, raising concerns about potential market manipulation by aggregators. In this paper, we study this issue by quantifying the profit an aggregator can obtain through strategic curtailment of generation in an electricity market. We show that, while the problem of maximizing the benefit from curtailment is hard in general, efficient algorithms exist when the topology of the network is radial (acyclic). Further, we highlight that significant increases in profit are possible via strategic curtailment in practical settings.