Fluence and Statkraft to build Ireland’s first 4-hour BESS

LinkedIn
Twitter
Reddit
Facebook
Email

System integrator Fluence and Norwegian state-owned power firm Statkraft have partnered on a 4-hour battery energy storage system (BESS) in Ireland, the market’s first.

The 20MW BESS will be deployed in County Offaly, in the Republic of Ireland, at Statkraft’s 55.8MW Cushaling wind farm, which is already under construction. Fluence and Statkraft expect to finish construction by the end of 2024.

The BESS will be able to discharge 20MW for up to four hours, longer than the typical duration deployed in the Ireland market to-date, which has been between 30 minutes and two hours, Statkraft said.

It will support Ireland’s grid operator Eirgrid by providing renewable load shifting as well as ancillary services to help maintain grid stability.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Brian Perusse, managing director of Fluence Energy Ireland, commented: “The continuous advancements in energy storage technology are astounding and the technology is well positioned to serve both flexibility and peak capacity needs in the market. We are very pleased to collaborate with Statkraft, our long-standing customer, on bringing the first 4-hour duration battery-based energy storage system to the Irish market.”  

It is Statkraft’s third BESS project in Ireland, and the firm has worked with Fluence at all three, the first of which was completed in January 2020, as covered by our sister site Solar Power Portal. The two companies recently partnered for a transmission-connected BESS in the UK too, Statkraft’s first to be connected that way rather than into the distribution network as is more common.

The project’s 4-hour duration could illustrate a move in the Ireland market towards more energy-intensive activities, and away from a reliance on ancillary services, which typically involve providing shorter, more frequent injections of power to help maintain grid frequency.

The longer the duration of battery energy storage capacity, the more benefits it can offer, Statkraft said.

Kevin O’Donovan, managing director of Statkraft Ireland, said: “The longer-duration storage capability of this project shows that Statkraft continues to innovate and embrace advancement in battery technology.”

Energy-Storage.news recently caught up with Fluence president for the Americas region John Zahurancik at RE+ 2023 in Vegas to primarily discuss the US market (Premium access).

Read Next

November 3, 2026
CEO and CFO of energy storage technology provider Fluence have both left the company.
October 29, 2026
Algorithmic bidding systems used to trade battery storage do not threaten competition in Australia’s NEM, according to Fluence.
October 27, 2026
IPP Greenvolt has agreed to sell two BESS in Poland to A&R, PGE Group has started building an 800MWh one, while SC Holding, Tauron and Tavion have launched projects into the country.
October 20, 2026
US utility Dominion Energy plans to build 3.5GW of battery energy storage systems (BESS) over the next 20 years according to its recently filed integrated resource plan (IRP).
October 16, 2026
A trio of large-scale 4-hour BESS projects in Germany have progressed towards construction, from Enertrag and Enlight, Vattenfall and Fluence, and Giga Storage.