Built for flexibility
Runs directly on renewables
- Starts in seconds with no warm-up and holds purity at low load, making local, off-grid production a reality.
The Flexible Electrolyzer
for a Renewable Future
World’s first supercapacitive electrolyzer that charges and discharges like a capacitor, producing hydrogen and oxygen at separate times – membrane-free and fully adaptable to fluctuating power.
Safe, Cost-efficient and Resilient Green Hydrogen by design
Safe
No gas-mixing
- No membranes or diaphragms to degrade. One gas at a time means no gas-mixing risk: safe by design, without backup power.
Modular
Scale fast
- Independent low-voltage stacks, sourceable materials and a simpler BoP (balance-of-plant).
Data-backed
A health check every cycle
- Every cycle measures stack health, like BMS (battery management system). Monitor remote sites from anywhere.
The market changed.
Electrolyzers did not.
Today's technologies were designed for steady grid power and stable supply chains.
Caplyzer is designed for cheap, variable renewables and with materials you can source locally.
| ALK | PEM | AEM |
|
|
|---|---|---|---|---|
| How gases are kept apart | Porous diaphragm | Polymer membrane | Anion-exchange membrane | No diaphragm or membrane |
| Running on variable power | Limited; shuts down below minimum load | Good | Partial | Dynamic response |
| Ramp-up time | Slow | Fast | Fast | Instant – no ramp-up time |
| Gas-mixing risk at low load | Yes | Yes | Yes | None, by design |
| Battery buffer for renewables | Often needed | Sometimes | Sometimes | Not needed |
Caplyzer is a deeptech startup that aims to transform the green hydrogen economy and enable heavy industries to reach net-zero.
Proven Foundation
Our technology is patented, peer-reviewed in Science Advances and backed by Vinnova and the Swedish Energy Agency. Together with a team committed to sustainability, we are building on a strong foundation to take it from lab to market.
Caplyzer was born in 2022
at KTH Royal Institute of Technology in Sweden by Professor Joydeep Dutta and Esteban Toledo as a result of their research and a passion for innovating clean energy solutions.
From research to reality.
Our journey in redefining electrolysis.
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Research
5+ Years Research
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Validation
Research Institute of Sweden evaluates the technology
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2022
Incorporated
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Patent Granted
Swedish patent granted
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Angel-round
/grantKTH Ventures, Vinnova and Energy Agency of Sweden
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Prototype
Small scale system production validated with large energy customer
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Funding
Backed by Almi Invest, Trio Impact Invest and UU Invest
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Today
Scaling
Scale technology to deploy first pilots
News and Press
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Press-release: Caplyzer secures 7 million SEK in a new investment round
Caplyzer solves the biggest bottlenecks of cost and scalability faced by the green hydrogen industry with its unique, patented super-capacitive electrolyzer technology.
Read More
Caplyzer and ECSAB Group Sign Letter of Intent for Green Hydrogen Pilot
A partnership to validate Caplyzer's membrane-free, super-capacitive electrolyzer technology in real-world setting, targeting safe, cost-competitive and locally produced green hydrogen.
Read More
Caplyzer is Top 15 startups in Europe
We are thrilled to announce that Caplyzer has been selected as one of the top 15 startups in Europe to participate in the Pitch Competition at the EU-Startups Summit 2025! The EU-Startups Summit is renowned for showcasing Europe’s most promising early-stage startups, providing a platform for…
Read More
Caplyzer expands Technology team to accelerate Innovation
To drive the development of our green hydrogen technology and accelerate its time-to-market, we are excited to announce the expansion of our technology team with the addition of three talented engineers.
Read More30+ years of experience in technology, management and entrepreneurship
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Rutvika Acharya
Co-founder & CEO
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Prof. Joydeep Dutta
Co-founder & CSO
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Ph.D. Quentin Daniel
CTO
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Peter Gossas
Chairman of the board
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Johan Ahlberg
Member of the board
