Ørsted acquired ESA Solar Energy’s 150 MW Salzburg BESS project in Michigan in May 2026. The standalone storage asset is located in Midland Township, has secured permitting, advanced in the interconnection process, and targets commercial operation in 2029–2030. Ascend Analytics advised ESA on valuation, market outlook, and transaction execution.

The deal shows US BESS M&A moving from pure merchant ERCOT exposure toward policy-backed MISO storage. Michigan’s 60% renewable portfolio standard by 2035 and 100% clean energy target by 2040 create a clearer utility offtake case for batteries. Ørsted, a listed strategic IPP, is buying development maturity, not just capacity.

Enerdatics’ US M&A analysis showed 2025 BESS activity dominated by de-risked standalone assets, with investors prioritizing grid volatility, interconnection progress, and near-term revenue visibility. ERCOT led earlier deal flow, but MISO and other regulated markets are now offering contracted or capacity-based storage opportunities.

ESA remains a private developer with more than 8 GW of solar and storage development transactions. Selling Salzburg after permitting allows ESA to recycle capital while staying involved through post-close development support. Ørsted gains a permitted, advanced-stage asset positioned for Michigan utility demand.

The next signal in US BESS M&A is not only larger batteries. It is strategic buyers paying for permitted storage in load-growth markets where utilities need capacity, reliability, and clean energy compliance.

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