Analysis of the Hybridization of PV Plants with a BESS for Annual Constant Power Operation

Ángel A. Bayod-Rújula () and Juan A. Tejero-Gómez
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Ángel A. Bayod-Rújula: Department of Electrical Engineering, University of Zaragoza, 50018 Zaragoza, Spain
Juan A. Tejero-Gómez: Department of Electrical Engineering, University of Zaragoza, 50018 Zaragoza, Spain

Energies, 2022, vol. 15, issue 23, 1-18

Abstract: The electrical generation of photovoltaic systems is variable and non-dispatchable. Energy storage systems can provide the system with energy management capabilities. In particular, with a hybrid system that combines a photovoltaic system and an energy storage system, it is possible to deliver firm power to the grid, if it is correctly dimensioned and operated. The objective of this work is to study the most appropriate relationship between the capacity of the battery energy storage system (BESS) and the peak power of the photovoltaic generator that enables the delivery of constant power throughout the year. Analysis parameters are presented that help to decide the most convenient energy injection constant value (PV-CPG set point) and the size of the storage system. As a case study, the most suitable battery capacity for a 1 MWp photovoltaic system with a battery located in Zaragoza (Spain), and the most convenient annual setpoint values for its operation are analyzed.

Keywords: photovoltaic plants; battery energy storage systems; constant power; firm energy; dispatchable energy with PV (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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