Solar-storage-diesel integrated system is a comprehensive energy system that combines photovoltaic systems, energy storage systems, and diesel generator systems. It primarily uses solar power as the main energy source, with diesel generators serving as emergency backup power, while integrating energy storage systems to balance electricity supply and demand, achieving efficient energy utilization and stable power supply.

Working Principle

The working principle of the integrated system is relatively simple. When there is enough sunlight, the photovoltaic system generates electricity to meet on-site power demands, with any excess electricity stored in batteries. When sunlight is insufficient or power demand increases, the energy storage system releases electricity.At the same time, the diesel generator can provide additional power as a backup, ensuring stable operation of the system.

System Components

1. Photovoltaic System
   Utilizing solar energy resources,it consists of solar panels, inverters, and other photovoltaic components,and is responsible for converting solar energy into electricity.
2. Energy Storage System
   This system includes storage batteries and other devices to store excess electricity generated by the photovoltaic system for use during periods of insufficient sunlight or peak demand.
3. Diesel Generator System
   Serving as an emergency backup power source, the diesel generator provides power support in case of insufficient PV generation or system failures.

Application Scenarios

1. Remote Areas
   In regions with insufficient grid coverage or unstable power, this system can provide a stable and  reliable electricity to meet the power needs of residents and businesses.
2. Islands and Mining Areas
   Most of the islands and mining areas rely heavily on traditional diesel generators due to geographic limitations,but diesel power generation has the problems of high cost and heavy pollution. The solar-storage-diesel integrated system can significantly reduce dependence on diesel, lower electricity costs, and at the same time can also provide power security at night.
3. High-Energy-Consumption Industrial Parks
   This system is widely used in industrial parks. Because factories require substantial power for normal operations. The photovoltaic system can supply electricity during the day, reducing energy costs, while the diesel generators and energy storage devices serve as backup power to ensure equipment operates normally in extreme conditions.

4. Large Public Spaces
   Hospitals, schools, transportation hubs and other public places have high electricity demands and need to ensure normal operations during emergencies. This system provides reliable power supply and ensures uninterrupted electricity during outages or grid failures.

   Project Case 

   Case 1: Fiji Solar-Storage-Diesel Project
   In the Fiji Industrial Park, we designed and implemented a 3MW photovoltaic system and a 3.44MWh energy storage system.

   

   Case 2: Madagascar Solar-Storage-Diesel Project
   This project is located in the coal mining area of Madagascar. We designed an integrated photovoltaic-storage-diesel power supply system for the camp project, which includes a 5MW photovoltaic system and a 10MWh energy storage system, along with a 1.5MW diesel generator.

Advantages

1. Improvement of Power Supply Stability
   The system stores excess electricity generated by the photovoltaic system in energy storage devices ,and at the same time configures diesel generators as backup power, ensuring electricity supply during emergencies and enhancing reliability.
2. Multi-scene applicability
   The solar-storage-diesel integration system can meet power demands in various scenarios, providing stable and reliable electricity in remote areas, islands, mining zones, and industrial parks.
3. Environmental Protection
   This system maximizes the use of renewable energy, reducing fossil fuel consumption and lowering greenhouse gas emissions, and helps protect the environment..
4. Increased Economic Benefits
   By combining multiple energy sources, it reduces the dependence on the traditional grids and lowers electricity costs, enhancing economic benefits.

Conclusion

In summary, the solar-storage-diesel mode further achieves diversified energy supply and complementation . This system can help tackle global energy scarcity challenges and promote the green and low-carbon transformation of global energy systems.