BW ESS and Ibersun launch 2.2GW Spain BESS JV

June 24, 2025
LinkedIn
Twitter
Reddit
Facebook
Email

Owner-operator BW ESS and developer Ibersun have entered into a partnership to develop and deploy 2.2GW of BESS projects in Spain.

The joint venture (JV) is initially targeting eight battery energy storage system (BESS) greenfield projects each with a 4-hour duration, which will be equally owned by the two companies. They are aiming to bring the projects to ready-to-build (RTB) status within the next two years.

Spain is targeting 22.5GW of new energy storage by 2030 under its National Integrated Energy and Climate Plan (NECP), though the market has been relatively slow to take off partially due to a lack of regulations around providing grid support services.

It is nonetheless seen as a market with strong fundamentals, and BW ESS and Ibersun’s announcement follows a period of increased activity, including an identically-sized JV announcement from Atlantico and Renewco and independent power producer (IPP) Enlight announcing a solar-plus-storage project with 220MWh of BESS.

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

A €700 million (US$811 million) capex support scheme for storage using EU Temporary Crisis and Transition Framework (TCTF) funding is expected to be the kickstarter, with 2.5-3.5GW of projects to be supported, launched earlier this month.

But, a regulation for grid services is key, explained Javier Izcue, VP Europe for inverter and BESS firm Sungrow in an interview last month (Premium). The blackout in Spain and Portugal in April has increased the conversation around the need for more grid-forming and grid-supporting resources.

BW ESS is a global BESS owner-operator, with operational portfolios in the UK and Sweden via a partnership with local developers Penso Power and Ingrid Capacity, and development pipelines in Australia, Germany (announced last month), Italy and now Spain.

Just a few days prior to the Spain announcement, BW ESS’ owner shipping and energy trading conglomerate BW Group announced the launch of BW Velora, an entity focusing on developing and commercialising data centre and digital infrastructure sites in the Nordics and Canada.

BW Velora will leverage the digital infrastructure expertise of another subsidiary BW Digital, and BW ESS’ extensive experience developing energy infrastructure in Europe. It said this would help “position itself at the intersection of digital infrastructure development, access to renewable energy and engagement with local communities,” though didn’t give specific details on how, if at all, energy storage would factor in.

9 June 2026
Stuttgart, Germany
Held alongside The Battery Show Europe, Energy Storage Summit provides a focused platform to understand the policies, revenue models and deployment conditions shaping Germany’s utility-scale storage boom. With contributions from TSOs, banks, developers and optimisers, the Summit explores regulation, merchant strategies, financing, grid tariffs and project delivery in a market forecast to integrate 24GW of storage by 2037.
2 December 2026
Italy
Battery Asset Management Summit Europe is the annual meeting for owners, operators, investors, and optimisation specialists working with operational BESS assets across the continent. The Summit focuses on how to maximise performance and revenue, manage degradation, integrate advanced optimisation software, navigate evolving market and regulatory frameworks, and plan for repowering or end-of-life strategies. With insights from Europe’s most active storage markets, it equips attendees with practical guidance to run resilient, profitable battery portfolios as the sector scales.

Read Next

May 1, 2026
Large-scale BESS projects have been progressed to construction, financing or operations across the EU this week, by project owners, investors and EPC firms re:cap, LONGi, Teos, Flower, Goldbeck Solar, SPP and Tavion.
April 30, 2026
There’s been progress on several large-scale BESS projects in the UK, with Matrix Renewables securing financing for its Eccles project and BW ESS enlisting EDF to optimise its Hams Hall one; plus smaller announcements.
April 29, 2026
Trinasolar’s Europe & LAC president, Gonzalo de la Viña, discusses Trina Storage, the Chinese solar PV giant’s battery storage business, its strategies and projects.
April 28, 2026
IPP Grenergy has entered into a long-term toll with an ‘investment grade’ international utility for a solar PV co-located BESS of 680MWh in Spain.
April 27, 2026
TotalEnergies is pushing ahead with a co-located battery storage and gigawatt-scale wind project in Kazakhstan, Central Asia.