Electrolysis without compromises.

>90% efficiency · 3.0 A/cm² · Tens-of-seconds startup · Lowest CAPEX

Electrolysis without compromises.

>90% efficiency · 3.0 A/cm² · Tens-of-seconds startup · Lowest CAPEX

Revolutionary design

Our patent-pending design combines efficiency, simplicity, and scalability.

Bubble-Free Electrolysis

Prevents gas buildup on electrodes, achieving over 95% hydrogen production efficiency compared to 60–70% in conventional systems.

Centrifugal Design

Naturally pumps and cools the electrolyte through rotation, eliminating the need for external pumps or separate cooling systems.

Bipolar Plateless Stack

A simplified architecture that reduces CAPEX, eases assembly, and supports higher-power stacks without bulky hardware.

Self-Regenerating Electrodes

In-situ catalyst redeposition replenishes active surfaces, cutting OPEX and extending stack lifetime.

Revolutionary design

Our patent-pending design combines efficiency, simplicity, and scalability.

Bubble-Free Electrolysis

Prevents gas buildup on electrodes, achieving over 95% hydrogen production efficiency compared to 60–70% in conventional systems.

Centrifugal Design

Naturally pumps and cools the electrolyte through rotation, eliminating the need for external pumps or separate cooling systems.

Bipolar Plateless Stack

A simplified architecture that reduces CAPEX, eases assembly, and supports higher-power stacks without bulky hardware.

Self-Regenerating Electrodes

In-situ catalyst redeposition replenishes active surfaces, cutting OPEX and extending stack lifetime.

Higher efficiency, more power, faster startup, lower CAPEX.

Spiral Hydrogen

Capillary-fed electrolyzers

Standard alkaline

PEM

Efficiency

HHV

>90%

95%

70%

65%

Current density

A/cm²

3

0.5-0.8

0.3-0.5

1-3

Startup time

From ambient temperature

Minutes

Up to an hour

Up to an hour

Tens of minutes

Pumping and cooling

Integrated

Separate equipment required

Separate equipment required

Separate equipment required

CAPEX

Lowest (plateless design)

High

Medium

High

Spiral Hydrogen

Capillary-fed electrolyzers

Standard alkaline

PEM

Efficiency

HHV

>90%

95%

70%

65%

Current density

A/cm²

3

0.5-0.8

0.3-0.5

1-3

Startup time

From ambient temperature

Minutes

Up to an hour

Up to an hour

Tens of minutes

Pumping and cooling

Integrated

Separate equipment required

Separate equipment required

Separate equipment required

CAPEX

Lowest (plateless design)

High

Medium

High

Spiral Hydrogen

Capillary-fed electrolyzers

Standard alkaline

PEM

Efficiency

HHV

>90%

95%

70%

65%

Current density

A/cm²

3

0.5-0.8

0.3-0.5

1-3

Startup time

From ambient temperature

Minutes

Up to an hour

Up to an hour

Tens of minutes

Pumping and cooling

Integrated

Separate equipment required

Separate equipment required

Separate equipment required

CAPEX

Lowest (plateless design)

High

Medium

High

Applications

Plug-and-play H₂ facility

Multiple high-efficiency stacks packaged in a 20- or 40-foot container. Each unit comes pre-engineered with circulation, gas handling, electronics, and safety systems — a plug-and-play hydrogen module from pilot to industrial scale. Real-time monitoring and in-situ catalyst redeposition extend lifetime and keep costs low.

Future pathway: Yubin

While containerized stacks are our core go-to-market, we are also developing Yubin, a patent-pending integration pathway that couples rotating machinery (wind, hydro, tidal, geothermal) directly to hydrogen production, cutting out conversion losses and unlocking new offshore opportunities.

Renewable Energy Integration

Hydrogen production directly from wind, hydro, or nuclear power systems.

Industrial Transformation

Affordable on-site hydrogen for sustainable steel, ammonia, and chemical production.

Transportation and Storage

Hydrogen as a clean and efficient solution for refueling infrastructure and off-grid systems.

Partner with us!

Send us a message to learn more about the future of hydrogen production. Let’s drive innovation together!

Juri Volodin

CEO and Founder

Partner with us!

Send us a message to learn more about the future of hydrogen production. Let’s drive innovation together!

Juri Volodin

CEO and Founder

Partner with us!

Send us a message to learn more about the future of hydrogen production. Let’s drive innovation together!

Juri Volodin

CEO and Founder

Spiral Hydrogen OÜ

Registration number: 16896381

VAT number: EE102792151

Registered address: Õismäe tee 44-44, 13512 Tallinn, Estonia

Office: Tartu, Estonia

© Spiral Hydrogen OÜ 2025, website by Lumela

Spiral Hydrogen OÜ

Registration number: 16896381

VAT number: EE102792151

Registered address: Õismäe tee 44-44, 13512 Tallinn, Estonia

Office: Tartu, Estonia

© Spiral Hydrogen OÜ 2025, website by Lumela