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Shannonbridge BESS

Shannonbridge BESS is one of two flagship 100MW Battery Energy storage Systems, developed in partnership with with South Korean conglomerate Hanwha Energy Corporation. This facility entered operation in 2021.

Shannonbridge Battery Energy Storage System

This project utilises high-power batteries to provide System Services to suit the Irish power system needs, under the DS3 System Service programme.

The BESS is providing System Services to the power system, which are required by the System Operator to enhance the management of the transmission grid, to ultimately increase the stability and improve the reliability of the electricity supply to consumers.

BESS is a highly effective and efficient source of System Services to the power system, offering high availability with minimal down-time for maintenance outages.  The System Services provided by our ESS assist the System Operator in realising its operational goal for System Non-Synchronous Penetration (SNSP) and achieving the targets for electricity demand to be met by renewables.


Construction Phase

  • Project Sponsors: Hanwha Energy Corporation, Lumcloon Energy
  • Project Capacity: 100MW
  • Market: DS3 System Services (frequency response/containment)
  • EPC: Hanwha Energy Corporation Ireland
  • Design and Build Contractor: Duggan Brothers with Suir Engineering, Malachy Walsh and Partners
  • Owners Engineer: Jennings O’Donovan & Partners with Enerjec
  • Construction Commencement: 2019
  • Construction Completion: 2021

  • Project Sponsors: Lumcloon Energy and VPI
  • O&M Contractor: Hanwha Energy Corporation Ireland
  • OEM Service Agreement: SMA and Samsung SDI
  • Trading: Vitol

Site Location

Our site at Shannonbridge is a greenfield site adjacent to the Shannonbridge 220kV transmission station and is near ESB’s West Offaly Power, a 150MW peat-fired power station and Bord na Mona’s associated fuel handling plant, which replaced the former ESB Shannonbridge 125MW power station.  The new 100MW ESS plant will expand the power industry in Shannonbridge.