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Why Harmony Energy is a game-changer for Alpiq's battery storage ambitions

07/10/2026, 10:00 | Security of supply

Alpiq's acquisition of a 90 percent stake in Harmony Energy is more than a company transaction. It is a significant step towards building one of Europe's leading battery storage platforms. Christoph Bellin, Head of BESS at Alpiq, explains why the deal matters, what makes Harmony Energy an attractive partner and why the rapid growth of flexibility markets across Europe creates a compelling opportunity for battery energy storage.

In the video below, Christoph Bellin shares his perspective on the acquisition, explains why Harmony Energy is such a strong strategic fit and discusses the market developments that are driving the next phase of battery storage growth across Europe.

A major step towards scale

Battery energy storage has become one of the most dynamic segments of Europe's energy market. According to Christoph Bellin, the acquisition of Harmony Energy marks a major milestone in Alpiq's ambition to become a leading player in this field. 

Harmony Energy brings a substantial development pipeline as well as projects already under construction. Combined with Alpiq's existing activities, the transaction significantly expands the company's battery storage footprint and creates a strong platform for future growth.

Why Harmony Energy stands out 

For Alpiq, the attraction of Harmony Energy goes beyond size alone. The company has established a strong presence in markets where demand for flexibility is growing rapidly, including the UK, Germany, France and Poland. These are markets that Bellin considers particularly relevant for the future of battery storage, as electricity systems increasingly rely on flexible assets to balance renewable generation and support grid stability.

About Harmony Energy

Founded in the UK in 2010, Harmony Energy is one of Europe's leading developers, owners and operators of utility-scale battery energy storage systems (BESS), strengthening grid flexibility and resilience, enhancing energy security, and supporting homegrown energy systems across the continent. With around 90 people operating across the UK, France, Germany and Poland, the company has developed, built and managed over 700MW of operational capacity across Europe, including 17 sites in the UK and one in France, with a further European pipeline of over 12GW. Harmony Energy's multi-award winning team is headquartered in North Yorkshire.