A hybrid microgrid system combines renewable energy generation, battery storage, power conversion, and energy management into a localized power network. It helps remote and distributed sites improve energy reliability by coordinating multiple power sources.
What Is a Hybrid Microgrid System?
A hybrid microgrid combines multiple power sources, energy storage, power conversion equipment, and control systems to supply local electrical loads. Depending on the project, these sources may include solar PV, small wind turbines, battery storage, the utility grid, or backup generators.
A typical renewable hybrid microgrid may include:
- Small wind turbines
- Solar photovoltaic (PV) systems
- Battery energy storage
- Inverters and power conversion equipment
- Energy management systems
- Local electrical loads
- Grid or backup power sources
How it works: The energy management system coordinates electricity generation, storage, and consumption according to changing power demand and renewable energy availability. Solar PV can provide power during daylight hours, while wind turbines can generate electricity whenever suitable wind conditions are available.
When renewable generation exceeds demand, surplus electricity can be stored in batteries. When renewable output falls below demand, stored energy can be released to support the load.
Why Combine Wind, Solar, and Energy Storage?
Because solar and wind resources often vary on different time scales, combining them can help diversify renewable generation. However, the actual degree of complementarity depends on site-specific wind and solar resource data.
When local wind and solar resources are suitable, combining them can create a more balanced renewable generation profile. Battery storage adds flexibility by storing surplus electricity and supplying power when renewable generation is temporarily lower than demand.
A wind-solar-storage configuration can:
- Diversify renewable power generation
- Improve the use of locally available energy
- Reduce dependence on a single energy source
- Better match renewable generation with electricity demand
- Support off-grid and grid-connected applications
Key Factors When Designing an Off-Grid Hybrid Microgrid
For an off-grid hybrid microgrid, system sizing must be based on actual site conditions because there is no utility grid to provide continuous backup power. Renewable generation, battery storage, and backup capacity therefore need to be coordinated with the site’s load requirements.
- Renewable resources: Evaluate wind speed, solar irradiation, seasonal variations, terrain, and other local conditions. These factors influence renewable energy output and system sizing.
- Electricity demand: Consider average consumption, peak demand, critical loads, operating schedules, and potential future expansion. Generation and storage should be sized around actual load requirements.
- Battery capacity: Match the storage system to the required storage duration, renewable generation profile, electricity demand, and backup requirements.
- Wind turbine selection: Consider rated power, operating wind speed, installation configuration, and expected energy production according to project requirements.
- Environmental conditions: Projects in remote locations may face complex environmental conditions such as high humidity, salt spray and strong winds. Therefore, equipment should be selected according to the installation environment and expected operating conditions.
Where Are Hybrid Microgrid Systems Used?
Hybrid microgrid systems can be adapted to different distributed power applications.
|
Application |
Typical Role of a Hybrid Microgrid |
|
Remote communities and off-grid sites |
Provide localized power where grid access is limited |
|
Communication base stations |
Combine wind, solar, and storage for local power needs |
|
Agricultural and rural facilities |
Use local renewable resources for on-site electricity |
|
Industrial and commercial sites |
Increase renewable energy utilization and power resilience |
|
Support demanding remote loads with distributed renewable generation and storage |
|
|
Small-scale wind farms |
Combine wind generation with solar and storage where suitable |
YG ENERGY Wind-Solar-Storage Solutions
YG ENERGY provides customized distributed energy solutions, including small wind turbines, UHPC wind turbine towers, energy storage, and inverter systems. These integrated solutions can be tailored to different project requirements, including remote facilities, localized microgrids, and other distributed power applications.
With supporting services such as equipment selection, aerodynamic simulation, power generation assessment, full-lifecycle cost evaluation, installation guidance, and remote monitoring, YG ENERGY helps optimize system design and long-term operation.
Key advantages include:
- Reliable performance in harsh environments: Small wind turbine units integrate multiple protection mechanisms, including yaw control, stall protection, and pitch control. The equipment can withstand extreme wind speeds up to 59.5 m/s, while matched towers achieve a fatigue life of 1.95 million cycles.
- Long service life and low maintenance requirements: UHPC features ultra-high compactness with compressive strength exceeding 150 MPa, effectively reducing salt-fog and moisture penetration. With C5 corrosion protection, the system is designed for long-term outdoor applications.
- Flexible system compatibility: Wind turbines can be integrated with PV and energy storage systems to support peak shaving, emergency backup power, and on-site renewable energy consumption.
- Traceable quality control: Quality verification records are maintained throughout the manufacturing process, enabling full traceability across production stages.
Conclusion
Hybrid microgrid systems integrate renewable power generation, energy storage and power management to deliver more flexible solutions for localized power supply. By combining wind and solar energy with battery storage, the system can improve renewable energy utilization while supporting different distributed power applications.
With 10–50 kW small wind turbines and customized wind-solar-storage solutions, YG ENERGY supports distributed energy and hybrid microgrid projects. If you are planning a hybrid microgrid system, please contact YG ENERGY to discuss your specific project requirements.
