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Value-Stacking Battery Services Considering Frequency Markets and Grid-Based Voltage Support

Abstract

Battery Energy Storage System (BESS) can provide frequency support to the power system by adjusting active power flow, but this may negatively impact local voltage. To mitigate this, the BESS can simultaneously inject or absorb reactive power to regulate voltage levels. This work analyzes the reactive power compensation necessary for a BESS to participate in frequency markets while upholding local voltage levels during reserve activation. Using a LinDistFlow framework, a case study on the IEEE 33-bus system is performed for one month of operation for a grid-connected BESS that maximizes profit while upholding the voltage levels in the grid, and reserves reactive power to counteract worst-case voltage impacts. To have sufficient reactive power to counteract voltage impact during activation, the BESS reduces frequency market bids by 34.8%. This consideration impacts the profitability of the BESS, capturing the need to address these service costs with the distribution system operator (DSO).

Category

Academic chapter/article/Conference paper

Client

  • Research Council of Norway (RCN) / 343732

Language

English

Author(s)

Affiliation

  • Norwegian University of Science and Technology
  • SINTEF Energy Research / Energisystemer

Year

2025

Publisher

IEEE (Institute of Electrical and Electronics Engineers)

Book

2025 21st International Conference on the European Energy Market - EEM

Issue

21

ISBN

979-8-3315-1278-1

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