Inner Mongolia Dengkou Integrated Demonstration Project for Wind and Solar Power-to-Hydrogen

Inner Mongolia Dengkou Integrated Demonstration Project for Wind and Solar Power-to-Hydrogen

Key Projects in Bayannur City | Major Hydrogen Energy Demonstration Project in Inner Mongolia Autonomous Region

Dengkou County, Bayannur City, Inner Mongolia
Total Investment3.12 billion yuan
Annual green hydrogen production of 20,000 tons

Project Overview

Dengkou Project Overview

The integrated wind-solar hydrogen production demonstration project in Dengkou, Inner Mongolia, is located in Dengkou County, Bayannur City, Inner Mongolia. Developed and invested by Shanghai Shanyao New Energy Development Co., Ltd., with a total investment of 31.21 billion yuan, the project aims to build an integrated hydrogen production base that combines wind power, photovoltaics, energy storage, electrolytic hydrogen production, and hydrogen storage. It has an annual green hydrogen output of 20,000 tons.

Core System

Core Hydrogen Production System

Wind and Solar Power Generation System

The project includes wind and solar power generation systems to fully leverage abundant local wind and solar resources, providing green, clean electricity for electrolytic hydrogen production.

  • Wind Power Generation System: Harnessing abundant local wind resources
  • Photovoltaic Power System: Fully Leverage Abundant Sunlight
  • Energy Storage Systems: Ensuring Stable Power Supply
  • Intelligent Dispatch System: Optimizing Coordinated Wind, Solar, and Storage Operation

Electrolytic Hydrogen Production System

Adopting advanced water electrolysis technology, we use clean electricity generated from wind and solar power to produce green hydrogen, with an annual output of 20,000 tons.

  • Electrolyzer Equipment: High-efficiency alkaline electrolyzers
  • Annual green hydrogen production: 20,000 tons/year
  • Hydrogen Purity: Meets Industrial-Grade / Fuel Cell-Grade Standards
  • Smart Control: Fully Automated Monitoring & Control System

Project Showcase

Showcase the full lifecycle of hydrogen production and storage—from wind and solar power to project construction and operations.

Panoramic View of Wind Farm

Panoramic View of Wind Farm

Photovoltaic Array

Photovoltaic array

Hydrogen Production Station

Hydrogen Production Station

Electrolytic Hydrogen Production Plant

Electrolytic Hydrogen Production Plant

35kV Distribution Room

35kV Distribution Room

Analysis and Testing Building

Analysis and Testing Building

Hydrogen Filling Station

Hydrogen Refueling Station

Integrated Pump Room

General Pump Room

Intelligent Control Center

Smart Control Center

220kV Indoor GIS Room

220kV Indoor GIS Room

Panoramic View of Wind Farm

Panoramic View of Wind Farm

Photovoltaic Array

Photovoltaic array

Core Project Metrics

Wind Power Capacity
300
6.25MW Wind Turbine × 48 Unit
Photovoltaic Capacity
200
DC side 239.83 MWp
Electrochemical Energy Storage
75
Wind and solar output regulation
Green hydrogen production capacity
20,000
44,000 Nm³/h Electrolyzer
Total Project Investment
3.12 billion yuan
Static investment: 3.07 billion yuan
Annual carbon reduction
252,000
CCER Methodology Accounting
All-in Investment Internal Rate of Return (IRR) (After-tax)7.47%
Payback period: 11.63 years (including construction period)
Project Capital Profit Margin 21.1%

New Energy Side
Construction Content

Wind 300 MW + Solar 200 MW + Storage 75 MW/150 MWh

Key Projects
  • · 48 wind turbines (160m tower)
  • · Monocrystalline Modules + String Inverters
  • · 220 kV Step-Up Station + Tie Line

Wind Farm 300 MW

Annual power generation: 8.14 billion kWh
Single-unit capacity
6.25 MW
Number of camera positions
48 units
Tower Height
160 m
Equivalent hours
2713 h
Annual Energy Generation
81390 thousand kWh

Photovoltaic Power Plant 200 MW

20 years, average 3.82 billion kWh/year
DC side
239.83 MWp
Component Type
Monocrystalline modules
Inverter
String
Construction hours
1673.9 h
Runtime hours
1593.6 h

Energy Storage Configuration

Electrochemical energy storage: 75 MW / 150 MWh, used for wind and solar output regulation and system peak shaving to ensure stable power supply for hydrogen production.

Associated Works

Wind turbines, box-type transformers, collection lines, lifting platforms, roads, 220 kV step-up substation (including energy storage), and transmission line between step-up and step-down substations: 12 km.

Hydrogen production side
Construction Content

Water electrolysis for hydrogen production + hydrogen compression + storage

Key Capabilities
  • · 44000 Nm³/h Electrolyzer
  • · 8×2000 m³ Hydrogen Storage Sphere
  • · Designed capacity: 2 thousand tons/year
Hydrogen Production Electrolyzer
44,000m³/h
Hydrogen storage capacity
160,000Nm³
Hydrogen production capacity
20,000tons/year

Main Engineering Modules

Production Unit

Water electrolysis for hydrogen production + hydrogen compression + purification

Utilities

Fresh Water / Circulating Water / Chemical Water / Nitrogen / Compressed Air / Instrument Air + Heating, Power Supply, and Telecommunications

Auxiliary Engineering

Air Compressor Nitrogen Station + Tank Farm + Control Room + Laboratory

Hydrogen storage solution: 8 units of 2000 m³ spherical tanks

Single-tank capacity 2000 m³ × 8 units = Total hydrogen storage capacity 16 10,000 Nm³. Hydrogen is compressed and stored in spherical tanks, then regulated for delivery to downstream chemical users or transported via pipeline.

Substation

220 kV Step-Down Substation (Connected to Hydrogen Production Plant)

Use Cases

Industrial Sector

Replace gray hydrogen with green hydrogen in industrial applications such as chemical and metallurgical processes to achieve industrial decarbonization.

Transportation

Hydrogen fuel cell vehicles, hydrogen heavy-duty trucks, hydrogen logistics vehicles, and other transportation applications

Energy storage peak shaving

Hydrogen as an energy storage medium enables seasonal-scale, large-capacity peak shaving.

Hydrogen Pipeline Transport

Build hydrogen pipelines to enable long-distance, low-cost hydrogen transport.

Project Value

Zero-Carbon Demonstration

Build an integrated zero-carbon industrial base for wind, solar, energy storage, and hydrogen to set a benchmark for China's hydrogen industry.

Industrial upgrading

Drive the upgrade of local new energy industries and stimulate development across the upstream and downstream supply chains.

Job Creation

Creates numerous jobs during construction and operation, boosting local economic growth.

Dual Carbon Contribution

Annual production of 20 thousand tons of green hydrogen, replacing significant fossil fuel use and reducing carbon emissions.

Project Milestones

2023

Project Initiation: Begin Preliminary Research and Planning

2025

Pre-project initiation procedures

2026

Project officially commenced construction

2027

Full-scale operation launched with an annual green hydrogen production capacity of 20,000 tons.

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