Pumped storage in systems with very high wind penetration

By Aidan Tuohy, Mark J. O'Malley. 2011

229 citations recorded by the source corpus.

This paper examines the operation of the Irish power system with very high levels of wind energy, with and without pumped storage. A unit commitment model which accounts for the uncertainty in wind power is used. It is shown that as wind penetration increases, the optimal operation of storage depends on wind output as well as load. The main benefit from storage is shown to be a decrease in wind curtailment. The economics of the system are examined to find the level at which storage justifies its capital costs and inefficiencies. It is shown that the uncertainty of wind makes the option of storage more attractive. The size of the energy store has an impact on results. At lower levels of installed wind (up to approximately 50% of energy from wind in Ireland), the reduction in curtailment is insufficient to justify building storage. At greater levels of wind, storage reduces curtailment sufficiently to justify the additional capital costs. It can be seen that if storage replaces OCGTs in the plant mix instead of CCGTs, then the level at which it justifies itself is lower. Storage increases the level of carbon emissions at wind penetration below 60%.

Subfields: Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/7cd0ad36e3c5fda8e46ddda417660f161f4f6ba1

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In Electrical and Electronic Engineering

Citations in the corpus

Assessing the Economic Benefits of Compressed Air Energy Storage for Mitigating Wind Curtailment (2015, unknown): “ranged between C15/t and C45/t CO2 [28], [42], [44]–[46].”
Flexibility mechanisms and pathways to a highly renewable US electricity future (2016, background): “, storage in Ireland [12] and aggregation in the western US [13]), shown synergistic or competitive relationships between two different options (e.”
Market and Policy Barriers to Deployment of Energy Storage (2012, background): “…curtailment—Denholm and Sioshansi (2009) demonstrate that storage can be an economic alternative to transmission for renewable interconnection, while Tuohy and O’Malley (2011) show that adding storage to a system with high renewable penetrations can alleviate generator constraint-related…”
Modeling of financial incentives for investments in energy storage systems that promote the large-scale integration of wind energy (2013, background): “Large-scale energy storage infrastructure [20–23] that may allow storage of wind energy in excess and feed the grid when energy deficits appear, is also a prospective solution.”
The value of energy storage in decarbonizing the electricity sector (2016, background): “To date, many studies have examined the short-run impact of energy storage on electric power system operations and economics [5] [6] [7] [8] [9] [14] [15] [16] [17] [18].”