Samsø

Funded by the European Union’s Horizon 2020 research and innovation programme, Samsø Island has embarked on a transformative energy project to optimize its renewable energy usage.

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Samsø’s Smart Energy Solution: Maximizing Renewable Energy with Xolta

Executive Summary
Funded by the European Union’s Horizon 2020 research and innovation programme, Samsø Island has embarked on a transformative energy project to optimize its renewable energy usage. With Xolta’s 240 kWh batteries, Samsø now efficiently stores excess solar energy, ensuring sustainable power consumption even during peak tourist seasons.

Project Overview: Samsø Island
Funding: Horizon 2020, Grant No 731249

Challenge: To manage the fluctuating energy demands of a tourist-favored destination while maximizing the use of locally produced renewable energy.

The Situation
Samsø, renowned for its sustainable energy initiatives, faces a unique challenge: its renewable energy production from solar cells and wind turbines exceeds local consumption for most of the year. However, the influx of tourists in summer increases energy demand significantly, especially in the bustling yacht marina of Ballen.

The Solution
To address this challenge, Samsø implemented Xolta’s 240 kWh battery systems at Ballen Harbor. These batteries store unused solar energy, with intelligent cloud-based software monitoring consumption and optimizing battery use by considering weather forecasts and energy prices. This innovative approach ensures a constant, optimized supply of green energy to meet the island’s needs.

The Outcome

  • Smart Grid Integration: Samsø’s energy system, including Xolta batteries, forms a smart grid that maximizes renewable energy usage, ensuring sustainability and efficiency.
  • Adaptive Energy Utilization: The system dynamically uses stored energy for various needs, such as powering wastewater and heat pumps at night, based on predictive weather analysis.
  • Renewable Energy Maximization: Through strategic storage and utilization, Samsø has enhanced its ability to use renewable energy year-round, accommodating peak demands without compromising its green principles.


“Integrating Xolta’s battery systems has revolutionized how we manage and utilize renewable energy on Samsø, especially during our busy tourist season. It’s a game-changer for sustainable living,” – Jan Jantzen, Project Manager at Samsø Energy Academy.


Samsø’s project exemplifies how innovative energy storage solutions like Xolta’s can address the challenges of fluctuating energy demands while promoting sustainability. This case study serves as an inspiring model for communities worldwide aiming to maximize their renewable energy potential.

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