The Mannheim-based energy company MVV Energie AG is investing up to €200 million in the project, which will supply climate-friendly district heat to as many as 40,000 households in the Rhine-Neckar metropolitan area. Construction is expected to start in mid-2026, with commissioning scheduled for winter 2028.
The installation will consist of two modules, each providing 82.5 MW of output, together delivering 165 MW. Using Rhine river water as a heat source and the natural refrigerant isobutane, the system will generate district heating water at temperatures up to 130°C.
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