‘BESS ownership typically changes hands 2-4 times during a 40-year lifecycle,’ says Pottinger

August 27, 2025
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“Battery energy storage systems (BESS) typically change ownership between two and four times during their 40-year lifecycle,” John Sheehy, CEO of Pottinger, said on day two of the Battery Asset Management Summit Australia 2025 this morning.

Discussing asset management on the ‘M&A and Engaging the Investor’ panel discussion, Sheehy of investment advisory firm Pottinger also noted that mergers and acquisitions (M&A) play an “incredibly important role” in the deployment of BESS.

“M&A is really important in shifting the profile from a cost of capital, from a risk profile as you move through the development stages and into operations and through the life of the battery,” Sheehy added.

Paul Peters, CEO of the New South Wales Energy Security Corporation (ESC), which launched at the start of July, and Alexander Austin, CEO of Infradebt, also participated in the panel discussion.

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The ESC was established under the Energy Security Corporation Act 2024. According to its official website, the organisation will invest between AU$25 million (US$16.25 million) and AU$150 million per project.

It has been armed with an initial funding allocation of AU$1 billion and an investment mandate that focuses on short – to long-duration energy storage (LDES) projects. Peters emphasised the need for longer-duration energy storage in New South Wales to maintain grid reliability amid growing concerns that the state will likely experience grid-reliability issues in 2027-28 without intervention.

“Of the 14 battery projects in the state today, 11 of them are two hours. That’s not enough duration, so we’re very focused on longer duration, such as four hours, eight hours, and getting some momentum into the market for those to get close, but to get to operation,” Peters added.

The state’s ESC will result in an overall expansion of private sector renewable energy investment in New South Wales, similar to how the Commonwealth’s Clean Energy Finance Corporation (CEFC) has expanded total renewable energy investment across Australia.

In addition to these factors, Austin believes that it is not only possible to go 100% merchant with a BESS without input from initiatives such as the Capacity Investment Scheme (CIS), which has a revenue floor and cap, but the organisation is already delivering these.

“We have done several pure merchant BESS projects. We created a specialist battery debt fund with the unfortunate acronym of ETF: the Energy Transition Fund,” Austin begins.

“ETF was created to provide debt finance to predominantly merchant batteries. We do everything from full merchant to 50/50; it’s here. That’s part of what we see as our niche in the market.”

Our publisher, Solar Media, will host the Energy Storage Summit Asia 2025 on 7-8 October 2025 in Manila, the Philippines. The official website has more information about the event, including how to book your ticket.

17 March 2026
Sydney, Australia
As we move into 2026, Australia is seeing real movement in emerging as a global ‘green’ superpower, with energy storage at the heart of this. This Summit will explore in-depth the ‘exponential growth of a unique market’, providing a meeting place for investors and developers’ appetite to do business. The second edition will shine a greater spotlight on behind-the-meter developments, with the distribution network being responsible for a large capacity of total energy storage in Australia. Understanding connection issues, the urgency of transitioning to net zero, optimal financial structures, and the industry developments in 2026 and beyond.
15 September 2026
San Diego, USA
You can expect to meet and network with all the key industry players again in 2025 from major US asset owners, operators, RTOs and ISOs, optimizers, software and analytics providers, technical consultancies, O&M technology providers and more.

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