Hydrogen Engine Gensets · Power becomes a product, not a project

Where surplus hydrogen becomes firm zero-carbon power

The world doesn't have an energy problem. It has a power deployment problem. EME hydrogen engines turn curtailed wind & solar and by-product hydrogen into reliable electricity — deployable in months, not years.

44%
Generation Efficiency
90%+
CHP Combined Efficiency
300kW
First Domestic H₂ Genset
90–97%
Crude Hydrogen Direct Use
Curtailed wind & solar Hydrogen storage Firm power · EME engines
About H2onest

The zero-carbon power platform for the digital economy

Abundant power is the defining limit of a company's potential. H2onest Clear Energy Green Power Co., Ltd. — founded June 2024 in Wuhan — is a distributed zero-carbon power innovation platform for the "AI + green hydrogen" era. EME is our engineering brand and product system.

Our technology foundation is the ammonia-hydrogen integrated high-power hydrogen internal combustion engine. Through modular architecture, we deliver high-resilience uninterrupted zero-carbon power, long-duration peak shaving and integrated hydrogen-electricity coupling for the most reliability-critical scenarios.

The engineering DNA comes from the EME team — twenty-plus years of internal-combustion-engine genset R&D, manufacturing and global delivery. We independently hold core technologies including hydrogen-injector self-lubrication, efficient stable combustion and a multi-fuel common platform.

Led by Prof. Cheng Xiaobei of Huazhong University of Science & Technology — a combustion scientist and veteran of thirteen years in engine industrial R&D — the team bridges the gap between world-class technology and commercial deployment.

Hydrogen Power Zero-Carbon Hydrogen Ready Distributed Multi-Fuel
EME headquarters
EME headquarters — Wuhan, China. Engineering gensets for over twenty years.

Our Mission — Transform low-cost hydrogen into high-value energy. We build power that is trusted, deliverable and replicable — power as a product, not a project.

Products

Deploy power in months, not years

From 300kW to 2000kW — a full power range built on a single engineering platform, Hydrogen Ready from day one.

300 kW

Hydrogen Engine Genset

First domestic hydrogen-engine genset in commercial operation — running on industrial by-product hydrogen.

In Operation · Yunmeng
375 kW

EME15H2KY

Pure-hydrogen genset, performance verified. Powering zero-carbon power for chemical and mining sites.

Delivered
600–2000 kW

CHG-P Hydrogen Ready Series

Natural-gas / hydrogen dual-fuel base-load gensets — today on gas, tomorrow blended, then pure hydrogen.

Hydrogen Ready · Finalising

HYDROGEN READY · Fuel-Flexible

Fuel adaptability isn't a feature. It's the foundation of a resilient energy future.

Natural Gas
Operational today on mature gas supply and grid
Blend ≤30%
Pipe-network hydrogen era — no retrofit needed
High-Ratio Blend
Wide-range lean-burn control, stable combustion
Pure H₂ 100%
Zero-carbon end-state — water vapour only

620V Series — Technical Parameters

Gas / hydrogen dual-fuel base-load gensets covering 1000–2000kW (models 620V12 · 622V16 · 622V20).

Model620V16
Engine Power1600 kW
Genset Power1500 kW
Frequency50 Hz
Bore / Stroke170 / 215 mm
Displacement78.04 dm³
Gas Consumption Rate9454 kJ/kW·h
HT Cooling Water Energy1071 kW
Exhaust Energy881 kW (cooled to 120°C)
Dimensions5000 × 1500 × 2400 mm
Weight12 600 kg

Typical parameters. See selection manual for full-range models.

EME genset on the test floor
Hydrogen Ready — running on hydrogen
By-product hydrogen — on-site power
Applications

Six scenarios. One platform.

Power deployment is the bottleneck — not power generation. EME hydrogen engines scale like a data center, not a power plant. Swipe or use the arrows to explore.

Plants at Work

Powering the industrial base — deliverably

Every plant is recorded in a standard dossier — location, facility, fuel, status, key figures. Verifiable and traceable, replicable from 300kW to 5MW.

Nigeria plant
Nigeria · 2×2000kW Gas Plant
Xintian coal mine
Xintian Mine · 14×1000kW Silent Plant
Russia plant
Russia · 4×2000kW Container Plant

Overseas off-grid delivery record accumulated in the gas-genset era — the engineering network our hydrogen power now builds on.

Hubei · Yunmeng Chemical ParkIN OPERATION
Facility
300kW hydrogen genset (first domestic)
Fuel
Industrial by-product hydrogen
Operation
2025
Co-developed
EME Team · Yuchai Power
Yichang Yihua · Pingdingshan PingmeiDELIVERED
Facility
EME15H2KY genset
Rated Power
375kW (performance verified)
Fuel
Industrial by-product hydrogen
Scenario
Chemical · Mining zero-carbon power
Gansu Hub · Compute-Hydrogen-Power CouplingPLANNING
Planned Capacity
5MW
Scenario
Data-centre clean power
Model
Compute-hydrogen-power coupling
Node
National computing hub
Global Presence

A global product from day one

Built on EME's existing overseas delivery and service network — zero-carbon power engineered for the world.

EME global delivery network
Overseas Branches
Brisbane · South Africa · Almaty · UAE · Nigeria
Off-grid mining & island power; hydrogen / natural-gas dual-fuel transition
Domestic Branches
Wuhan · Liuzhou · Nanjing · Hohhot
Data-centre backup, park trigeneration, by-product hydrogen
Strategic Markets
Southeast Asia (Singapore) · Central Asia · Europe (Germany)
Compute hydrogen power, Hydrogen Ready dual-fuel, commercial CHP
Test Equipment · dfeme.com

Twenty years of engine test engineering

Four core businesses — engine test systems, hydrogen-engine & fuel-cell labs, whole-vehicle component rigs, and containerised test solutions. Full specifications at www.dfeme.com.

①

Engine Test Systems

Dynamometers (AVL APA 220 · Horiba 460), hydrogen-engine labs up to 460kW, fuel-cell stack & system test benches — for calibration, durability and combustion analysis.

Testing
②

Whole-Vehicle Component Rigs

Thrust-washer endurance rigs, silicon-oil fan test benches, generator & A/C compressor loading rigs, brake & suspension test stands.

Component
③

Containerised Test Solutions

Non-standard power containers up to 700kW engines, temperature-control systems (−50~150°C), high-altitude intake simulation and RDE low-temperature loops.

Container

Full product line & engineering services — EME1 to EME10

Download the 45-page equipment catalogue, or visit dfeme.com for detailed specifications.

Visit www.dfeme.com ↗
Contact

Let's make zero-carbon power deliverable

For products, partnerships or investment — we'd love to hear from you.

Get in Touch

Our team responds to product, partnership and investment inquiries as quickly as possible.

📍
Headquarters
Wuhan, Hubei, China
✉️
Email
info@dfeme.com
🌐
Website
www.h2onest-power.com
🏷
Brand
EME · H2onest Clear Energy Green Power

Free Resources

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Hydrogen Strategy 2026
Strategy report · 15 pages

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Company Overview
Company profile · 12 pages

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