Sangam: A Confluence of Knowledge Streams

Evaluating the Curtailment Risk of Non-Firm Utility-Scale Solar Photovoltaic Plants under a Novel Last-In First-Out Principle of Access Interconnection Agreement

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dc.creator Sedzro, Kwami Senam A.
dc.creator Horowitz, Kelsey
dc.creator Jain, Akshay K.
dc.creator Ding, Fei
dc.creator Palmintier, Bryan
dc.creator Mather, Barry
dc.date 2021-03-15T11:42:59Z
dc.date 2021-03-15T11:42:59Z
dc.date 2021-03-08
dc.date 2021-03-12T14:40:33Z
dc.date.accessioned 2023-03-01T18:53:23Z
dc.date.available 2023-03-01T18:53:23Z
dc.identifier Sedzro, K.S.A.; Horowitz, K.; Jain, A.K.; Ding, F.; Palmintier, B.; Mather, B. Evaluating the Curtailment Risk of Non-Firm Utility-Scale Solar Photovoltaic Plants under a Novel Last-In First-Out Principle of Access Interconnection Agreement. Energies 2021, 14, 1463.
dc.identifier http://hdl.handle.net/10919/102715
dc.identifier https://doi.org/10.3390/en14051463
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/281719
dc.description With the increasing share of distributed energy resources on the electric grid, utility companies are facing significant decisions about infrastructure upgrades. An alternative to extensive and capital-intensive upgrades is to offer non-firm interconnection opportunities to distributed generators, via a coordinated operation of utility scale resources. This paper introduces a novel flexible interconnection option based on the last-in, first-out principles of access aimed at minimizing the unnecessary non-firm generation energy curtailment by balancing access rights and contribution to thermal overloads. Although we focus on solar photovoltaic (PV) plants in this work, the introduced flexible interconnection option applies to any distributed generation technology. The curtailment risk of individual non-firm PV units is evaluated across a range of PV penetration levels in a yearlong quasi-static time-series simulation on a real-world feeder. The results show the importance of the size of the curtailment zone in the curtailment risk distribution among flexible generation units as well as that of the “access right” defined by the order in which PV units connect to the grid. Case study results reveal that, with a proper selection of curtailment radius, utilities can reduce the total curtailment of flexible PV resources by up to more than 45%. Findings show that non-firm PV generators can effectively avoid all thermal limit-related upgrade costs.
dc.description Published version
dc.format application/pdf
dc.format application/pdf
dc.language en
dc.publisher MDPI
dc.rights Creative Commons Attribution 4.0 International
dc.rights http://creativecommons.org/licenses/by/4.0/
dc.subject renewable integration
dc.subject distributed PV integration
dc.subject active network management
dc.subject PV interconnection agreement
dc.title Evaluating the Curtailment Risk of Non-Firm Utility-Scale Solar Photovoltaic Plants under a Novel Last-In First-Out Principle of Access Interconnection Agreement
dc.title Energies
dc.type Article - Refereed
dc.type Text
dc.type StillImage


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