ZEF

What ZEF does

ZEF (Zero Emission Fuels) is a Netherlands-based private technology startup developing modular micro-plant systems for low-cost production of e-fuels and e-chemicals — specifically hydrogen, CO2, and synthetic methanol — directly from solar power and atmospheric CO2. Founded in 2020 and now headquartered at the RDM Campus (Innovation Dock) in Rotterdam, the company originated at TU Delft's Process & Energy lab and is led by three co-founders (Hessel Jongebreur, Jan van Kranendonk, and Ulrich Starke) supported by expert advisers from TNO and TU Delft.

The company's product architecture consists of three integrated subsystems marketed as the H2 Alkaline Electrolysis System, the CO2 Direct Air Capture (DAC) Unit, and the Methanol Synthesis System. These combine into a single air-to-methanol micro-plant that connects directly to solar PV arrays, bypassing grid infrastructure. The design intent is mass manufacturing of small modular units rather than scaling by individual system size, with a stated long-term commercial thesis of deploying 40,000+ micro-plants per "Solar Methanol Farm." Key technical differentiators are non-precious-metal electrodes with injection-molded stacks (electrolysis), a continuous low-temperature swing DAC process with integrated 50-bar compression, and dynamic reactor/distillation for solar-only operation. Headcount is 11-50 employees, augmented by a student workforce of 150+ drawn from vocational and university programs.

Commercially, ZEF is pre-revenue and in the development/pilot stage, with pricing not publicly disclosed. The GTM model is direct enterprise sales of modular equipment to utility-scale solar farm operators and sustainable chemicals producers in Europe. Core partnerships include TU Delft and TNO for R&D, Nouryon for high-pressure alkaline electrolysis testing, Yes!Delft for incubator support, and Promolding for manufacturing expertise, with non-dilutive funding from the NXTGEN HIGHTECH program of the Netherlands National Growth Fund. Revenue mechanics are not yet established; the company's competitive position rests on regulatory tailwinds from EU ETS penalties on fossil fuels and post-2030 RFNBO targets that incentivize Power-to-X adoption.

Name

ZEF

Legal name

Zero Emission Fuels (ZEF)

Website

https://zeroemissionfuels.com

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

11–50 employees

Short description

ZEF is a Netherlands-based pre-revenue startup developing modular micro-plants that combine alkaline electrolysis, CO2 direct air capture, and methanol synthesis to produce synthetic fuels from solar power and atmospheric CO2, targeting utility-scale solar farm operators and the sustainable chemicals sector in Europe.

Ownership category

akta.pro rank

Product category

Renewable Fuel Production Equipment

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Concentrated Solar & Solar Fuels R&D (CSP Innovations, Thermochemical, Solar-to-Hydrogen) (EUAMAOAE)

akta.pro secondary industry

Renewable Distributed Generation (Rooftop/Onsite Solar, Small Wind, Small Hydro) (EUACALAJ)

Keywords

• Modular e-fuel production
• Direct air capture systems
• Alkaline electrolysis equipment
• Solar methanol synthesis
• Power-to-x micro-plants

Headquarters

HQ city

Delft

HQ country

Netherlands

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Supply Chain, Operations, Infrastructure

Distribution channels1 record

Marketing channels3 records

Core offering

ZEF designs and manufactures modular equipment for low-cost e-fuel and e-chemical production in utility-scale solar farms. Its core offering is an integrated air-to-methanol micro-plant that combines a hydrogen alkaline electrolysis system, a CO2 direct air capture (DAC) unit, and a methanol synthesis reactor into a single unit that operates directly on solar power, eliminating the need for grid connections. Scale is achieved by deploying tens of thousands of these micro-plants together as Solar Methanol Farms.

Product overview

ZEF (Zero Emission Fuels) develops a modular micro-plant system for low-cost e-fuel and e-chemical production in utility-scale solar farms. The product portfolio consists of three integrated core subsystems: the Hydrogen (H2) Alkaline Electrolysis System for water splitting, the CO2 Direct Air Capture (DAC) Unit for atmospheric carbon capture, and the Methanol Synthesis System for converting captured inputs into methanol. These subsystems work together as a unified air-to-methanol micro-plant that operates directly on solar power, eliminating grid connection requirements. Scale is achieved by building Solar Methanol Farms—large facilities combining 40,000+ micro-plants with solar panels—leveraging mass production of modular units rather than scaling individual system size.

Differentiator

Problem solved

Functional benefit

Brands

• ZEF Student Team: A group of entrepreneurs, young & ambitious students (all levels) and technology experts working at the forefront of synthetic liquid hydrocarbon production systems. ZEF has worked with over 150 students from various educational institutions.

Products and services

• Fully Automated Modular Air-to-Methanol Micro-Plant Fully automated, modular micro-plant that converts captured CO2 and electrolyzed hydrogen into methanol and connects directly to solar panels, eliminating the need for grid power. It is the integrated end-product sold to utility-scale solar farm operators and chemical companies.
• Solar Methanol Farms Large-scale methanol production facility composed of 40,000+ ZEF micro-plants paired with solar panels, enabling utility-scale renewable methanol output by scaling in numbers rather than system size.
• Hydrogen (H2) Alkaline Electrolysis System Alkaline electrolysis subsystem combining non-precious metal electrodes, injection-molded stacks, and autonomous operation for low-cost, scalable hydrogen production from water. Designed as a modular building block of the air-to-methanol micro-plant.
• CO2 Direct Air Capture (DAC) Unit DAC subsystem that uses a continuous low-temperature swing process with long-lifetime sorbents, co-captures water, and integrates 50 bar compression for low-cost, energy-efficient atmospheric CO2 capture. Designed as a modular building block of the air-to-methanol micro-plant.
• Methanol Synthesis System

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature5 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• TU DelftcoreStrategic or Co-development PartnerZEF is located at the heart of the TU Delft campus and collaborates with world class experts from TU Delft. ZEF was founded at the Process & Energy lab and maintains ongoing R&D collaboration with TU Delft professors.
• TNOcoreStrategic or Co-development PartnerZEF collaborates with TNO experts on various development targets. TNO provides innovation advisory services and testing capabilities. ZEF also collaborates with TNO experts on specific technical challenges.
• Climate KICminorStrategic or Co-development PartnerClimate KIC partner mentioned in ZEF's partner logos section.
• Yes!DelftcoreStrategic or Co-development PartnerZEF collaborates with Yes!Delft, a startup incubator/accelerator. Hessel Jongebreur served as Yes!Delft board member 2005-2015.
• NobianminorStrategic or Co-development PartnerNobian is listed as a partner in ZEF's partner logos section.
• PromoldingminorStrategic or Co-development PartnerPromolding is listed as a partner in ZEF's partner logos section, likely providing manufacturing expertise for modular components.
• NouryonminorStrategic or Co-development PartnerZEF developed a testing facility for running high pressure alkaline electrolysis tests in collaboration with experts from TU Delft and Nouryon.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Sunfire: German manufacturer of high-temperature electrolyzers and synthetic fuel (e-fuels) systems including co-electrolysis of CO2 and H2O; competes with ZEF in renewable liquid fuel production for chemical and aviation markets.
• HIF Global: Chile-headquartered e-fuels company using green hydrogen to produce synthetic gasoline, diesel, and SAF; competes with ZEF in the renewable liquid fuels value chain for hard-to-abate transport segments.
• Climeworks: Swiss pioneer in CO2 Direct Air Capture and the most direct technology competitor to ZEF's DAC subsystem; both companies target modular capture units for e-fuel synthesis and carbon removal, serving overlapping industrial offtakers.
• Enapter: German-Italian manufacturer of modular anion exchange membrane (AEM) electrolyzers designed for mass production and small-scale deployment; closely aligned with ZEF on the modular, mass-manufacturable design philosophy.
• 1PointFive (formerly Carbon Engineering): Occidental-owned DAC developer with massive capital backing and commercial-scale STRATOS plant in Texas; competing head-to-head with ZEF in the modular DAC-for-fuels space and signing long-dated offtake deals with airlines and oil majors.
• Prometheus Fuels: California-based startup producing synthetic gasoline directly from captured CO2 and renewable electricity; shares ZEF's air-to-liquid fuel vision and competes for similar aviation and chemical customers.

Broad incumbents

• Nel ASA: Norwegian hydrogen equipment manufacturer producing alkaline and PEM electrolyzers at scale for industrial buyers; a broad incumbent that competes with ZEF's hydrogen subsystem in the same renewable-hydrogen value chain.
• ITM Power: UK-based PEM electrolyzer manufacturer supplying large-scale green hydrogen plants to industrial and utility customers; broader incumbent in hydrogen equipment that overlaps with ZEF's alkaline electrolysis offering.
• Siemens Energy: Global industrial conglomerate offering the Silyzer line of large-scale PEM electrolyzers and integrated hydrogen plant solutions; broad incumbent in industrial-scale hydrogen and Power-to-X systems competing with ZEF's integrated modular concept.

Emerging players

• Hysata: Australian electrolyzer startup with a novel capillary-fed electrolyzer architecture claiming industry-leading efficiency; an emerging technology peer to ZEF's hydrogen production subsystem.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks7 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about ZEF