Free Custom System Design
- Load profile & critical load analysis
- Renewable & storage capacity sizing
- Microgrid architecture & SLD
- Autonomy & reliability simulation
- Black start & load shedding strategy
Power Without the Grid
Yiwei's off-grid and island microgrid solutions deliver reliable, 24/7 electricity to locations with no grid connection or unstable grid infrastructure. By combining renewable generation with battery storage and backup diesel generators, we achieve 70–90% renewable penetration while maintaining 99%+ power availability.
Our grid-forming energy storage system establishes stable voltage and frequency in islanded operation, with black start capability to restart the entire microgrid after a complete outage. The EMS automatically manages load prioritization, generator coordination, and battery dispatch — ensuring critical loads are always powered first.
From remote islands in Southeast Asia and the Pacific to mountain villages in Central Asia and off-grid communities in Africa, Yiwei delivers turnkey off-grid microgrids from 50 kW to multi-MW, with optional 4G/5G remote monitoring and maintenance.
Reliable Power. Anywhere.
An off-grid microgrid that delivers clean, reliable power with black start capability and intelligent load management.
Black Start Capability
Grid-forming storage can restart the entire microgrid from a complete outage without external power, restoring critical loads within minutes.
Load Prioritization
Intelligent load shedding ensures critical loads — hospitals, water pumps, communication systems — receive power first during low-generation periods.
Diesel Coordination
Backup generators start automatically when renewable generation and storage are insufficient, running at optimal load for maximum fuel efficiency.
Island Energy Independence
Reduce or eliminate dependency on expensive imported diesel fuel, achieving 70–90% renewable penetration with reliable 24/7 power supply.
Grid-Forming for Islanded Operation
Every off-grid microgrid is built around a grid-forming energy storage system that establishes stable voltage and frequency. The architecture supports black start, seamless generator synchronization, and automatic load management.
- Grid-forming PCS with black start capability
- LFP battery storage, 4–72 hours autonomy
- Automatic load shedding & prioritization
- Diesel/gas generator synchronization & coordination
Built for Off-grid Living
From remote islands to mountain villages, our off-grid microgrids deliver reliable power where no grid exists.
Remote Islands
Island communities and resorts replace expensive diesel-only power with solar + storage + backup generator microgrids, reducing fuel costs and emissions.
Mountain Villages
Remote mountain and highland communities get reliable electricity from off-grid microgrids, powering homes, schools, clinics, and small businesses.
Off-grid Communities
Villages and towns without grid access achieve 24/7 power with high renewable penetration, improving quality of life and economic opportunity.
Emergency & Disaster Relief
Portable and rapid-deployment off-grid systems provide emergency power after natural disasters, with black start and autonomous operation capabilities.
From Design to After-Sales
Yiwei supports off-grid customers through every project stage — from site assessment to long-term remote monitoring and maintenance.
- Free site assessment and load profile analysis
- Customized microgrid design with autonomy simulation
- On-site commissioning and black start verification
- 5-year product warranty with optional remote O&M service
Performance Specifications
Every component is selected for reliability, efficiency, and durability in off-grid environments — backed by rigorous testing and certifications.
Ready to Power Your Off-grid Site?
Talk to our microgrid experts for a customized off-grid solution tailored to your location, load, and renewable resources.