What makes a renewable energy deal truly future ready Long term revenue certainty, operational scale, and flexibility for emerging technologies are now the defining factors. Eolus’ latest transaction in Sweden brings all three together, reinforcing the country’s role as a stable and attractive market for clean energy investment.

On December 23, 2025, Eolus announced the sale of its onshore wind portfolio in Sweden to Mirova, a global investor focused on sustainable finance. While the deal value was not disclosed, the structure of the transaction highlights strategic depth beyond a standard asset sale. Eolus and Mirova have entered into a 15 year asset management agreement, ensuring operational continuity and performance optimization. In parallel, both parties have agreed to jointly develop battery energy storage systems at each wind farm site, positioning the portfolio to benefit from future grid flexibility and ancillary services. This approach reflects how wind developers are increasingly embedding storage into existing assets to enhance value and resilience.

The portfolio comprises 87.6 MW of onshore wind capacity spread across three projects in Sweden’s SE3 price area, a region known for strong power demand and attractive pricing dynamics. The 44.8 MW Fagelas wind farm is located in Hjo, the 18 MW Dallebo wind farm sits in Ulricehamn, and the 24.8 MW Boarp wind farm operates in Vaggeryd. Construction for all three projects began in spring 2024, and they were fully operational at the time of the agreement. Being operational reduces development risk and allows immediate cash flow generation, making the assets particularly attractive for long term infrastructure investors.

A key strength of this wind portfolio is its 15 year power purchase agreement with a global technology company. This long term PPA provides predictable revenues and shields the assets from wholesale market volatility, a critical factor for institutional investors. Looking ahead, the planned integration of battery energy storage systems adds another layer of value. Storage can help shift generation to higher price periods, reduce curtailment, and support grid stability. Similar wind plus storage projects across Europe have shown improved revenue capture and enhanced grid services, making this a forward looking strategy rather than a speculative add on.

In conclusion, Eolus’ sale of its Swedish wind portfolio to Mirova demonstrates how mature renewable assets can be monetized while retaining long term involvement and upside through asset management and storage development.

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