Background of the Wind-Solar-Diesel Hybrid Power Supply System Project

China Mobile Inner Mongolia Company is tasked with deploying numerous communication base stations across the vast grasslands and mountainous terrain of the region. Many of these stations are located in remote areas where access to the national power grid is unavailable. Extending the grid to these locations would require substantial financial investment.

To address this challenge, the Wind-Solar-Diesel Hybrid Power Supply System offers an efficient and sustainable alternative for powering communication base stations. This system combines wind energy, solar power, and diesel generation to deliver a highly reliable electricity supply with excellent energy conversion efficiency. It also supports remote monitoring and unmanned operation, significantly reducing daily maintenance demands and operational costs.

Advantages of Nanjing Oulu Company

Nanjing Oulu Company has years of extensive experience in developing wind-solar-diesel hybrid power supply projects for communication base stations, providing integrated solutions for such systems. The company offers mature technical approaches and a wealth of practical application cases, holding a significant market share in China.

The hybrid power system for communication base stations includes:

• 1. Wind turbines

• 2. Solar photovoltaic modules

• 3. Integrated communication controller

• 4. Battery packs and outdoor battery storage boxes

The integrated communication controller features a modular design fully compliant with communication power standards. The system is divided into functional modules including monitoring, grid power, photovoltaic, wind turbine, and diesel generator. Each module operates independently while maintaining coordinated control, facilitating easy maintenance and expansion in line with base station power system requirements.

Nanjing Oulu Company is capable of customizing module configurations based on specific scenarios, regional conditions, and load demands, positioning itself as a high-quality one-stop supplier for wind-solar-diesel hybrid power systems in communication base stations.

Configuration of Wind-Solar-Diesel Hybrid Power Supply System

Nanjing Oulu has supplied China Mobile Inner Mongolia with a comprehensive hybrid power system for communication base stations, which includes the following integrated components:

• 1. Solar photovoltaic modules

• 2. 2KW/96V wind turbine

• 3. Integrated wind-solar hybrid controller (featuring monitoring, grid power, PV, wind turbine, and distribution units)

• 4. Combiner box

• 5. Connection cables

The system is designed for ease of installation, maintenance, and future expansion. It enables multi-energy complementarity, high integration, and smart IoT connectivity, significantly reducing energy consumption. With redundant structures integrated into the power control system, overall stability and reliability are greatly enhanced.

Issues Addressed by the Project

Communication base stations require 24/7 monitoring. Previously, diesel generators were used for power supply, which not only incurred high operational costs and energy waste but also raised environmental concerns due to emissions and significant noise pollution.

The implementation of the Wind-Solar-Diesel Hybrid Power Supply System effectively resolves the challenge of grid power access in remote locations. This system delivers substantial benefits, including:

• 1. Significant reduction in annual electricity costs

• 2. Lower carbon dioxide emissions, supporting energy conservation and consumption reduction goals

• 3. High recognition from customers for its reliability and sustainability

Additionally, the project contributes to building a low-carbon society and adds a visually distinctive feature to the open grassland landscape with its modern renewable energy infrastructure.