Unlocking the value of energy storage
BW ESS is a global energy storage developer, owner and operator, moving with speed to deliver market-leading projects.

What we do

At BW ESS, we are unlocking the full potential of energy storage to create a more sustainable and resilient energy future.  As developers, owners and operators of Battery Energy Storage Systems (BESS), we provide the critical solutions needed to optimise energy markets, integrate renewable resources, and ensure the grid is ready for tomorrow’s demands.

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Who we are

Part of BW Group, a leading global energy and maritime infrastructure company, BW ESS is able to leverage decades of experience in energy infrastructure investment, delivery and operation – and the scale and connections needed to move the needle in global energy storage.

BW Group’s sustainable investments include solar, offshore wind, batteries and water treatment.

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At a glance

6 countries
540+ MWh: Operating
~5 GWh: Under / Pre-Construction
~9.3 GWh: Pipeline

Latest news

Board members photo for press release
16.10.2025

Seasoned European energy leaders join BW ESS Board

Appointment of two highly experienced board directors follows significant growth for BW ESS and comes at a ‘watershed moment’ for the global energy storage sector.
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ESS x AIP
25.09.2025

AIP Management and BW ESS form long-term partnership through investment in 2.4GWh UK battery storage portfolio

AIP Management (“AIP”), a leading investor in energy and decarbonisation infrastructure, has agreed to acquire a 49% equity stake in a UK-based battery energy storage system (“BESS”) portfolio with a total capacity of 700MW and 3.5-hour duration from BW ESS, a global developer, owner and operator of energy storage systems. The transaction marks AIP’s first dedicated investment in standalone battery storage and reflects its strategy of investing alongside industrial partners with complementary expertise.
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UNUSED Option 2
23.06.2025

BW ESS and Ibersun sign joint venture to develop 2.2GW BESS in Spain

Global energy storage owner-operator BW ESS and Getxo-based energy storage developer Ibersun have signed a joint venture to develop, in its first phase, 2.2GW of utility-scale battery energy storage system (BESS) projects across Spain.
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