Oort Energy Website

THE FUTURE OF HYDROGEN

Welcome to Oort Energy

Oort Energy is pioneering accessible renewable energy. Not only have we delivered the UK’s first off-grid hydrogen electrolyser, we’re powering businesses right now with entirely renewable, net zero, hydrogen energy

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THE FUTURE OF GREEN HYDROGEN

The Oort Stack

Meet Venus: Oort’s 250kW Electrolyser Stack

‍Leveraging decades of expertise, Oort Energy has radically re-engineered the PEM electrolyser. Designed for longevity, Oort’s proprietary assembly and sealing technology protects PEM MEAs and extends stack life.

Crossover Prevention: Our proprietary technology prevents hydrogen crossover, enabling the use of ultra-thin, highly efficient membranes.

Patented Coating Technology: Our innovative coating eliminates platinum waste, reduces setup costs (CAPEX), and is designed for speed and full automation.

Optimised for Mass Manufacture: We can manufacture at scale with significantly lower costs than our competitors.

Products

Our Electrolysers

Oort Energy offers cutting-edge electrolyser solutions designed for the immediate demands of the green hydrogen revolution. Our products combine field-tested reliability with scalable, efficient designs, making green hydrogen a reality for a range of diverse applications.

• ACTIVE UNITS

Phaeton

Oort Energy’s next-generation electrolyser system for industrial-scale hydrogen. Engineered for seamless integration and scalability in multi-megawatt deployments.

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• ACTIVE UNITS

Theia

Oort Energy’s robust 1 MW electrolyser for high-demand hydrogen applications. Powered by the Venus stack and optimized for scalable, reliable performance.

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• ACTIVE UNITS

Gaia

Our self-contained, compact electrolyser system with fully autonomous operation. Requiring only tap water & power to run, and offering full scalability up to 500kW, it’s the go-to for renewable, clean, green energy.

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A TRUE PARTNERSHIP

Working with Oort

Case studies from some of our amazing customers who are building faster.

Industry Leading Tech

"We first came across Oort Energy when we needed to source an electrolyser for use within a green ammonia project.

Across all our research we were unable to find a supplier who would be able to provide exactly what we needed, until we met with Oort Energy."

Expert Leadership

"Initially, we were very impressed with the expertise of their CEO Nick Van Dijk, as he came from an electrolyser background with a strong academic reputation. Soon after we met with the Director of Engineering, Alex Shields, whose technical responses were very strong and in tune with our needs."

Seamless Collaboration

"Working with Oort Energy has been an excellent experience. At this point in time, we are approaching the delivery of our electrolyser and we have really enjoyed the process. The interactions have always been a pleasure as Oort Energy have brought with them a good work ethos and efficient conversation."

Outstanding Support

"Due to where our electrolyser plant will be we have had to deal with some technical and safety challenges, and we have found that Oort have been very forthcoming with their assistance. They’ve gone beyond their contract with a genuine interest and desire to help, offering their experience and expertise in safety and technical issues."

EDUCATION

Frequently asked questions

Everything you need to know about Oort

What does Oort Energy Do?

Oort Energy designs and manufactures high-efficiency Proton Exchange Membrane (PEM) electrolyser stacks and systems. Our advanced technology reduces the cost of hydrogen production while maintaining high performance and durability, making green hydrogen more accessible and commercially viable.

Why is green hydrogen important?

Green hydrogen, produced using renewable energy sources such as solar or wind, is essential for decarbonising hard-to-abate sectors like heavy industry, transport, and energy storage. Unlike grey hydrogen, which is derived from fossil fuels, green hydrogen generates no carbon emissions, helping accelerate the transition to net-zero. Oort Energy’s electrolysers are ideal for a range of applications, including chemical and fertiliser production, industrial decarbonisation, grid balancing and energy storage.

What makes Oort Energy’s electrolyser stack different?

Oort Energy’s electrolyser stack is the most cost-efficient and high-performance solution commercially available. Our proprietary innovations in coatings and catalyst-coated membranes, combined with a radical redesign optimised for mass manufacturing, have enabled us to deliver unmatched efficiency and cost savings.

How does Oort Energy reduce the cost of Green Hydrogen?

We have optimised our electrolyser technology to significantly reduce both operational (OPEX) and capital (CAPEX) costs. By improving system efficiency and durability, we can deliver a low levelised cost of hydrogen (LCOH) today. Our roadmap focuses on further cost reductions to make green hydrogen cost-competitive with grey hydrogen in the coming years.

What's next for Oort Energy?

Oort Energy is focused on scaling up hydrogen production while continuing to innovate and reduce costs. We are preparing to launch our high-pressure electrolyser and aim to expand globally, ensuring that green hydrogen becomes a scalable and accessible solution for industries and governments alike. With a robust pipeline and growing partnerships with global leaders, Oort Energy is well-positioned to scale operations and meet the increasing demand for green hydrogen.

OUR HISTORY & FUTURE

The History of Oort

2021

Company founded
Proof of design made
First lab-scale prototype
Pre-seed capital raised

2022

First commercial-scale prototype made
First premises established
First grant funded project secured
Seed capital raise
Growth of team from 2 people to 6
2 patents filed

2023

Permanent headquarters established
Growth of team from 6 to 20 people
First commercial electrolyser demonstrated at a customer site
1MW orders secured
Horizon Europe grant secured for high pressure electrolysis
Tender won for 100 kW system

2024

Very high pressure electrolysis stack demonstrated
Cost reductions for 2nd gen system demonstrated
Further patents applied for
10MW FEED studies undertaken
FAT of 100 kW and 1 MW systems completed
£1.2M Revenue
Named a Top 100 Start Up

2025

Expanded Bristol site to include specialist clean room facility.
Launched 1MW Electrolyser with stakeholders at Hydrogen Generation Event
Won Innovation Award at Hydrogen UK Annual Awards

The Future

Launching our Gen II electrolyser with even higher performance
Reducing stack costs by 36% to make green hydrogen more accessible

YOU SHOULD KNOW

The Types of Hydrogen Energy

The different “colours” of hydrogen denote the process by which hydrogen energy is produced. The colours help to differentiate between types of hydrogen, and may vary from country to country.

Green

Grey

Black

Primary source

Hydrogen

Natural Gas

Coal

Method

Electrolysis of water

Steam methane reforming

Coal gasification

CO2 emissions

Zero CO₂ Output

Lower CO₂ biproduct output

High CO₂ biprouct output

Lifecycle emissions

(kg CO₂ / kg H₂)

Energy efficiency

80%+

50 - 55%

40 - 50%

Supplied by Oort?

Basic plan

$96/year

Basic features for up to 10 users with everything you need.

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Business plan

$192/year

Advanced features and reporting, better workflows and automation.

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Enterprise plan

$384/year

Personalised service and enterprise security for large teams.

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User access

Basic features

Saved reports

Unlimited

Individual data

20GB

40GB

Unlimited

Support

Automated workflows

200+ integrations

Reporting and analytics

Analytics

Basic

Advanced

Export reports

Scheduled reports

API access

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Customer properties

Custom fields

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SSO/SAML authentication

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Audit log

Data history

OUR MISSION

Green hydrogen is a clean source of energy that will lead to a meaningful reduction in greenhouse gas emissions. Because electrolysis is the key to enabling green hydrogen, a future where it is globally available will only be possible with a disruptive new approach to electrolyser manufacturing, making market adoption cost-effective. To make an impact on climate change, green hydrogen needs to be globally available today.

Oort Energy's mission is to globally deploy our electrolyser technology, making green hydrogen economical so market demand drives the transition to net-zero.