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CMBlu Energy

Energy · Alzenau, Germany · Founded 2014

CMBlu Energy AG is a German-based manufacturer of stationary energy storage systems, targeting a key role in the global energy transition. The company's history began with a research project in 2011, initiated by founder Dr. Peter Geigle, a biotech entrepreneur who envisioned creating large-scale batteries based on organic molecules, mimicking energy storage principles found in nature. This vision led to the formal establishment of CMBlu Energy AG in 2014. A significant breakthrough occurred in 2020 with the patenting of its core technology. Dr. Geigle, who has a background in biotechnology and founded the company CellMed, applied his expertise to develop CMBlu's initial concept. In March 2024, Constantin Eis took over as CEO to steer the company from a technology-focused entity into a global cleantech enterprise, while Dr. Geigle moved to the Supervisory Board to focus on technology development. The company's business model centers on the development, production, and sale of its proprietary Organic SolidFlow batteries. These systems are designed for large-scale applications, serving clients such as energy utility companies, grid operators, and commercial and industrial consumers. CMBlu's revenue is generated through the sale of these battery systems for applications including renewable power generation, EV charging infrastructure, and grid stabilization. The firm has secured significant funding, including a €100 million ($107M) investment from the construction group STRABAG in October 2023 to scale up production. This investment is part of a strategy to establish manufacturing in both Europe and the United States. The company is actively deploying pilot projects with partners like Uniper in Germany, Burgenland Energie in Austria, and, in the U.S., with WEC Energy Group, Salt River Project, and the Department of Energy's national labs. CMBlu's flagship product is the Organic SolidFlow battery, a hybrid technology combining features of redox flow and solid-state batteries. Its unique selling proposition lies in using carbon-based organic molecules, derived from nature's citric acid cycle, for its electrolytes instead of the scarce and often conflict-sourced metals like lithium or vanadium used in conventional batteries. This approach results in a non-flammable, non-explosive, and fully recyclable energy storage system. The battery's architecture allows for the independent scaling of power (by adding more stacks) and capacity (by increasing the size of the electrolyte tanks), offering high customizability. This design avoids self-discharge and allows for the replacement of individual components to restore performance. The technology is built for long-duration storage, aiming to be cost-competitive with lithium-ion at four hours and increasingly more affordable at longer durations. Keywords: Organic SolidFlow, energy storage systems, redox flow battery, long-duration energy storage, grid-scale batteries, non-lithium battery, stationary energy storage, sustainable energy, recyclable batteries, Peter Geigle, STRABAG, utility-scale storage, EV charging infrastructure, microgrids, renewable energy integration, energy transition technology, aqueous electrolytes, carbon-based electrolytes, battery manufacturer, cleantech, Alzenau, grid stabilization, large-scale storage, industrial energy storage