Full-Time
Safety and Environmental Expert
Updated on 9/3/2026
CMBLU Energy
201-500 employees
Manufactures stationary Organic SolidFlow energy storage
No salary listed
Alzenau, Germany
In Person
Bachelor's
 Facilities Operations (1) |
|---|
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- Completed degree in occupational safety, environmental protection, or a natural-scientific or technical field with an appropriate additional qualification.
- Completed training as an occupational safety specialist in accordance with § 7 of the German Occupational Safety Act (ASiG), plus several years of experience in legally regulated environmental and officer functions such as BImSchG, § 59 KrWG, and § 64 WHG.
- Several years of professional experience in industry, chemicals, energy, plant engineering, or a comparable environment.
- Sound knowledge of occupational safety and environmental law, especially ArbSchG, BetrSichV, GefStoffV, and relevant environmental legislation.
- Experience implementing statutory requirements and dealing with authorities, employers’ liability insurance associations, and audits.
- Structured, independent working style with strong consulting skills.
- Fluent German and very good English.
- Completed training and qualifications for the designated occupational safety, environmental, waste, and water-protection officer functions.
- Advise executive management, managers, and employees on occupational safety, health protection, and environmental matters.
- Ensure implementation of statutory requirements under ArbSchG, ASiG, BetrSichV, GefStoffV, BImSchG, KrWG, and WHG.
- Conduct, coordinate, and update risk assessments, including deriving and verifying the effectiveness of protective measures.
- Investigate occupational accidents and near misses and initiate suitable preventive measures.
- Perform the functions of environmental, waste, and water-protection officer, including communication with authorities and audit support.
CMBlu Energy AG develops and sells Organic SolidFlow batteries for stationary, grid-scale energy storage. The system combines redox-flow and solid-state concepts, using carbon-based organic molecules derived from the citric acid cycle as electrolytes to create a non-flammable, recyclable storage solution whose power and energy can be scaled independently. It avoids scarce metals by using nature-derived materials and aqueous electrolytes, while allowing component replacements to restore performance for long-duration storage. The company aims to become a global cleantech provider for utility-scale storage and grid services, with manufacturing expansion in Europe and the United States and pilots with utilities and government labs.
Company Size
201-500
Company Stage
Series C
Total Funding
$165M
Headquarters
Alzenau, Germany
Founded
2014
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Simplify's Take
What believers are saying
- April 2026 Series C raised €50 million, with Samsung Ventures joining STRABAG.
- Uniper signed a 5 GWh framework through 2037, creating rare commercial visibility.
- Greek permits cleared in August 2026, unlocking construction for CMBlu’s second gigafactory.
What critics are saying
- Thessaloniki’s plant faced August 2026 delays; missing 2026 funding deadlines threatens the project.
- Uniper’s 5 GWh contract is conditional, with first deliveries only starting in 2027.
- CMBlu has no proven mass-market revenue; a failed scale-up would crush unicorn valuation.
What makes CMBLU Energy unique
- Organic SolidFlow avoids lithium, vanadium, and flammable chemistries; core patent dates to 2020.
- CMBlu decouples power and energy, enabling ten-hour storage and modular grid-scale deployment.
- Germany’s live Alzenau gigafactory gives CMBlu proprietary manufacturing before Greece and US sites.
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Benefits
Stock Options
Commuter Benefits
Remote Work Options
Professional Development Budget
Growth & Insights and Company News
6 month growth
↓ -1%1 year growth
↓ -1%2 year growth
↑ 4%CMBLU Energy secures all permits for Thessaloniki plant. CMBLU Energy, the global deep-tech company for non-lithium energy storage, has received full regulatory approval to commence construction of its production facility in Chalkidona, Thessaloniki. The plant will produce SolidFlow batteries, a long-duration energy storage technology that stores energy for ten hours or more and is built from abundant materials rather than critical minerals. As the first facility of its kind in Greece, the permitting process established a new precedent for licensing non lithium battery manufacturing in the country. With all approvals secured, CMBLU is advancing into the construction phase of its second gigafactory, following the deployment of its first operational production site in Alzenau, Germany, in 2024. "Pioneering a breakthrough technology like SolidFlow requires creating new regulatory pathways," said George Paterakis, Managing Director of CMBLU Greece. "Working constructively alongside Greek authorities, we have established a strong framework for LDES manufacturing and we now have every approval we need to build." CMBLU continues to work closely with the Greek government under the Produc-E Green framework to align the project's execution with national energy transition and industrial investment goals. PPC, Greece's leading utility and electricity supplier, remains a committed local partner, while at group level Samsung is among the investors supporting SolidFlow as a highly viable alternative to Lithium-Ion. Earlier this year, Uniper signed a conditional supply agreement covering a minimum of 5 GWh, enough to cover a full day of household electricity demand for the entire Thessaloniki metropolitan area. "Greece is our strategic hub for South East Europe," said Constantin Eis, CEO of CMBLU Energy. "By building local manufacturing capacity here, we are strengthening European and Greek energy sovereignty, bringing high-tech manufacturing to the region and delivering the long-duration storage the grid urgently needs." About CMBLU Energy CMBLU Energy is a global deep-tech company delivering the next generation of long-duration energy storage for utilities, data centers, and large commercial and industrial customers. Its non-lithium SolidFlow battery combines proprietary energy-dense materials with the architecture of flow batteries to provide safe, scalable energy storage built from abundant and readily available materials. Founded in 2014 and headquartered in Alzenau, Germany, CMBLU is scaling manufacturing through its automated gigafactory in Germany, with additional facilities planned in the United States and Greece to support resilient, localized supply chains. With more than 250 employees, including over 150 scientists and engineers, CMBLU is helping build the energy infrastructure needed to support growing electricity demand, strengthen grid reliability, and power the next generation of digital and industrial growth.
CMBlu Energy, an organic flow battery company, has closed a €50 million Series C financing round with participation from Samsung Ventures, bringing its valuation above $1 billion. Existing investors, including technology group Strabag SE, also participated in the round. CMBlu's SolidFlow battery energy storage system combines organic redox flow technology with solid-state storage materials, designed for multi-hour energy storage. The technology uses carbon-based chemistry, avoiding conflict materials and rare earth elements, whilst stationary solids in the tank improve energy density. The company has signed an agreement with Uniper valid until 2037 for battery systems in batches of at least 100MWh, with deliveries starting in 2027. CMBlu's technology avoids foreign entity of concern restrictions in the US and targets applications including data centres and grid-scale storage.
CMBlu achieves unicorn status: SolidFlow developer now valued at over one billion euros. 50 million euros in Series C funding will drive the scaling up of production of the non-lithium SolidFlow battery in Europe and the US. 05-May-2026 Symbolic image AI-generated image CMBlu Energy has reached unicorn status, crossing the €1 billion valuation threshold following a €50 million initial close of its Series C financing with participation from Samsung Ventures. All existing investors, including STRABAG SE, also joined in the round, underscoring sustained confidence in CMBlu's strategy and long-term execution. This milestone reflects accelerating commercial validation as data centers and utilities seek dependable, always-on energy solutions at scale. CMBlu is the sole inventor of SolidFlow, a new class of non-lithium long-duration energy storage engineered for high-energy, multi-hour applications. Designed to deliver ten hours or more of dispatchable energy, SolidFlow addresses one of the most urgent structural constraints limiting hyperscale growth - how to secure dependable, multi-hour capacity as electricity demand outpaces grid expansion. "Our SolidFlow technology is redefining energy storage by combining inherent safety with a streamlined permitting pathway - enabling faster, more predictable deployment at scale," said Constantin Eis, CEO of CMBlu. "That speed to power paired with resilient, localized supply chains is critical as data centers and industrial customers advance their business needs and race to meet surging demand. Customers powering critical operations need energy they can count on through the night and under real-world conditions while maximizing efficiency. CMBlu's innovative battery tech makes this possible and the market is rewarding technologies that can deliver superior performance and dependability." A new storage architecture for the energy transition. CMBlu's SolidFlow technology represents a breakthrough departure from lithium-dominated storage, introducing a longer duration architecture purpose-built for multi-gigawatt-hour deployment. The system combines non-flammable, water-based electrolytes with proprietary solid energy storage materials while decoupling power from energy capacity and enabling cost-effective scaling. Built from earth-abundant, recyclable materials, SolidFlow avoids foreign-entity-of-concern (FEOC) supply chains for customers in the United States while supporting long-life, infrastructure-grade performance. "At Samsung Ventures, we are committed to identifying technologies that serve as the backbone of a cleaner, more resilient energy infrastructure," said a spokesperson on behalf of Samsung. "CMBlu's innovative solution stands out as an industry leading approach to scaling sustainable, long-duration energy storage solutions and positions the company as a key enabler of the global energy transition. This partnership underscores our dedication to supporting technologies that not only accelerate energy innovation but also meet the rising power demands of an AI and electrification driven world." The initial close of Series C will support manufacturing scale-up and accelerate early commercial deployments in Europe and the United States. As proof of this market momentum, CMBlu has secured a 5 GWh framework agreement from one of Europe's leading utilities, Uniper, reinforcing the role of SolidFlow in enabling grid responsiveness. This is equivalent to: * Powering a 1 GW data center for five hours * Supplying a 500 MW data center for ten hours, covering the full overnight window when solar generation drops to zero By shifting excess daytime generation into peak and overnight demand periods, SolidFlow enables data centers to operate on some of the lowest-cost electricity available while maintaining uptime and grid stability. As electricity demand from AI, electrification, and industrial growth accelerates, CMBlu is positioning advanced duration energy storage as foundational infrastructure for a reliable, resilient, and economically competitive energy system.
CMBlu Energy has achieved unicorn status with a valuation exceeding €1 billion following a €50 million initial close of its Series C round. Samsung Ventures participated alongside existing investors including STRABAG SE. The German company has developed SolidFlow, a non-lithium long-duration energy storage system designed for high-energy applications requiring ten hours or more of dispatchable power. The technology uses non-flammable, water-based electrolytes and earth-abundant materials, avoiding foreign-entity-of-concern supply chains. CMBlu has secured a 5 GWh framework agreement with European utility Uniper. Founded in 2014, the company employs over 250 people and operates an automated gigafactory in Alzenau, Germany, with additional facilities planned in the United States and Greece. The funding will support manufacturing scale-up and commercial deployments.
CMBlu surpasses €1B+ unicorn threshold with €50M initial close of Series C, defining baseload infrastructure for AI and data centers. * 1 hr ago ALZENAU, Germany, April 30, 2026 (GLOBE NEWSWIRE) - CMBlu Energy has reached unicorn status, crossing the €1 billion valuation threshold following a €50 million initial close of its Series C financing with participation from Samsung Ventures. All existing investors, including STRABAG SE, also joined in the round, underscoring sustained confidence in CMBlu's strategy and long-term execution. This milestone reflects accelerating commercial validation as data centers and utilities seek dependable, always-on energy solutions at scale. CMBlu is the sole inventor of SolidFlow, a new class of non-lithium long-duration energy storage engineered for high-energy, multi-hour applications. Designed to deliver ten hours or more of dispatchable energy, SolidFlow addresses one of the most urgent structural constraints limiting hyperscale growth - how to secure dependable, multi-hour capacity as electricity demand outpaces grid expansion. "Our SolidFlow technology is redefining energy storage by combining inherent safety with a streamlined permitting pathway - enabling faster, more predictable deployment at scale," said Constantin Eis, CEO of CMBlu. "That speed to power paired with resilient, localized supply chains is critical as data centers and industrial customers advance their business needs and race to meet surging demand. Customers powering critical operations need energy they can count on through the night and under real-world conditions while maximizing efficiency. CMBlu's innovative battery tech makes this possible and the market is rewarding technologies that can deliver superior performance and dependability." A new storage architecture for the energy transition CMBlu's SolidFlow technology represents a breakthrough departure from lithium-dominated storage, introducing a longer duration architecture purpose-built for multi-gigawatt-hour deployment. The system combines non-flammable, water-based electrolytes with proprietary solid energy storage materials while decoupling power from energy capacity and enabling cost-effective scaling. Built from earth-abundant, recyclable materials, SolidFlow avoids foreign-entity-of-concern (FEOC) supply chains for customers in the United States while supporting long-life, infrastructure-grade performance. "At Samsung Ventures, we are committed to identifying technologies that serve as the backbone of a cleaner, more resilient energy infrastructure," said a spokesperson on behalf of Samsung. "CMBlu's innovative solution stands out as an industry leading approach to scaling sustainable, long-duration energy storage solutions and positions the company as a key enabler of the global energy transition. This partnership underscores our dedication to supporting technologies that not only accelerate energy innovation but also meet the rising power demands of an AI and electrification driven world." The initial close of Series C will support manufacturing scale-up and accelerate early commercial deployments in Europe and the United States. As proof of this market momentum, CMBlu has secured a 5 GWh framework agreement from one of Europe's leading utilities, Uniper, reinforcing the role of SolidFlow in enabling grid responsiveness. This is equivalent to: * Powering a 1 GW data center for five hours * Supplying a 500 MW data center for ten hours, covering the full overnight window when solar generation drops to zero By shifting excess daytime generation into peak and overnight demand periods, SolidFlow enables data centers to operate on some of the lowest-cost electricity available while maintaining uptime and grid stability. As electricity demand from AI, electrification, and industrial growth accelerates, CMBlu is positioning advanced duration energy storage as foundational infrastructure for a reliable, resilient, and economically competitive energy system. About CMBlu Energy CMBlu Energy is a global deep-tech company redefining long-duration energy storage with its breakthrough SolidFlow battery technology. The company's innovation combines the advantages of proprietary, energy dense materials with the architecture of flow batteries, enabling high-performance storage systems built from abundant, non-flammable materials instead of critical minerals. Founded in 2014, CMBlu evolved from one of Europe's largest lithium-free battery research laboratories into a rapidly scaling energy storage innovator. The company is now scaling manufacturing through its automated gigafactory in Alzenau, Germany, with additional facilities planned in the United States and Greece to support resilient, localized supply chains. With more than 250 employees - including over 150 scientists and engineers - CMBlu is accelerating the future of long-duration energy storage and enabling resilient power systems capable of supporting the next generation of digital infrastructure and electrified industries worldwide. Headquartered in Alzenau, Germany, CMBlu Energy also operates in Greece and the U.S. U. S. Media Contact On Behalf of CMBlu Energy