Project Background
In many regions across Southeast Asia, grid access is limited or unreliable, creating significant barriers for industrial facilities that require continuous electricity. In the outskirts of Manila, Philippines, a refrigeration equipment factory faced a critical challenge: the site had no access to the utility grid, making stable power supply impossible.
To solve this, Enjoypowers engineered a fully off-grid DC-coupled solar + storage + diesel microgrid system. This solution ensures around-the-clock power availability, reduces fuel dependence, and enables sustainable industrial operations in a tropical environment.
Philippines 100kw PV+BESS+Genset
System Configuration
The off-grid microgrid deployed at the factory includes:
- 80 kW solar PV array – leveraging the Philippines’ excellent solar resources
- 100 kW / 100 kWh energy storage system – providing peak shaving, load balancing, and diesel optimization
- 50 kVA diesel generator – used only as a backup during extended periods of low solar generation
This solar + storage + diesel hybrid microgrid enables the factory to achieve energy independence while lowering operating costs and reducing carbon emissions.
System topology diagram
Seasonal Performance
The Philippines has a tropical climate with distinct dry and rainy seasons, influencing solar availability. The system was designed to optimize performance across both conditions:
- Dry Season (November – May): Abundant solar generation combined with storage covers 100% of the factory’s daily electricity demand, achieving zero diesel consumption.
- Rainy Season (June – October): Reduced solar generation requires the diesel generator to operate only 2–3 hours per day, significantly cutting fuel costs compared to traditional diesel-only setups.
Key Advantages of the System
1. Smart Energy Storage Management
The battery energy storage system (BESS) provides real-time power balancing. It smooths impact loads, supports sensitive equipment, and ensures stable factory operations. It also optimizes diesel generator operation, allowing it to run only at its most efficient load points.
2. High Renewable Energy Penetration
The system achieves an annual solar energy contribution of over 90%, drastically reducing fuel consumption and minimizing greenhouse gas emissions.
3. Reliable Off-Grid Power Supply
By eliminating dependence on the national grid, the factory secures a stable electricity supply in a location with limited infrastructure, ensuring uninterrupted production and protecting against power outages.
4. Lower Operating Costs
Reduced diesel runtime means lower fuel expenses and decreased maintenance requirements, making the investment more cost-effective over the system’s lifecycle.
Conclusion
The Philippines off-grid solar + storage + diesel microgrid project demonstrates how hybrid renewable systems can deliver reliable, efficient, and sustainable power to industrial facilities without grid access.
By integrating solar, storage, and diesel generation, Enjoypowers provides a proven solution that enables factories in remote or underdeveloped regions to maintain continuous production, lower operational costs, and reduce environmental impact.
