Grid-Tied / Off-Grid PV-ESS
50MW STS <10ms Changeover
Our solutions give you unprecedented freedom. Whether it’s grid-tied
operation to optimize energy use or a one-click switch to off-grid mode for
independent power, your energy system is always in control, ready for any challenge.
Grid-Tied / Off-Grid PV-ESS
Our PV-ESS supports both grid-tied and off-grid modes. In grid-tied mode, it optimizes energy costs. For off-grid use, it seamlessly switches during grid failures, ensuring continuous power.
A key advantage is the system’s superior off-grid transfer capability. Our 50MW STS (Static Transfer Switch) enables ultra-fast switching in less than 10 milliseconds (<10ms), guaranteeing uninterrupted power, especially for high-reliability power demands.
- 50MW STS Technology: Our system is equipped with an advanced 50MW Static Transfer Switch (STS), crucial for achieving rapid power transitions.
- Sub-10 Millisecond Response: Experience industry-leading response times. In the event of a grid outage, the system switches from grid-tied to off-grid mode in an imperceptible less than 10 milliseconds (<10ms).
- Uninterrupted Operations: This ultra-fast switching capability minimizes disruption to your production, operations, or critical infrastructure, ensuring continuous power supply.
- Grid-Tied Optimization: In grid-tied mode, our system works seamlessly with the utility grid to intelligently manage energy, effectively reducing your electricity costs and potentially generating revenue through services like peak-shaving.
- Off-Grid Reliability: During grid failures or instability, the system effortlessly transitions to off-grid mode, relying on solar power and energy storage to continuously supply critical loads and maintain uninterrupted operations.
- Enhanced Energy Independence: By combining solar power generation with energy storage, our system maximizes your energy independence, reducing reliance on the traditional grid and empowering your energy autonomy.
- Reliable Lithium Batteries: The system utilizes high-performance lithium batteries as its storage medium, ensuring both efficient energy storage and exceptional stability.
- Robust Safety Measures: Our lithium battery solutions undergo rigorous testing, complying with international safety standards. They incorporate multiple safety protection mechanisms to guarantee long-term, stable operation of the battery system.
- Efficient Energy Utilization: The high energy density and charge/discharge efficiency of our lithium batteries ensure optimal utilization of solar energy and rapid power output when needed.
- Full Lifecycle O&M Support: We provide comprehensive operation and maintenance services, spanning from installation and commissioning to routine inspections and fault diagnostics, ensuring your system runs stably and efficiently over its entire lifespan.
- Intelligent Remote Monitoring: Our advanced monitoring platform enables real-time remote surveillance and management of system operational status, battery health, energy flow, and other critical data.
- Rapid Fault Response: Our expert O&M team, combined with remote diagnostic capabilities, can quickly identify and respond to potential issues, minimizing downtime and safeguarding your power continuity.
50MW STS <10ms Changeover Solution

Project Case
For steel mills needing continuous power, our integrated grid-tied/off-grid solution combines grid, diesel, solar PV, and storage, managed by an EMS.
Key to this is high-speed switching, providing uninterrupted power with millisecond-level transfers when the grid fluctuates, ensuring production and safety.
Our system also features main grid fast islanding protection, seamless power-forming cluster switching, cluster transient fault ride-through, and inrush current suppression for direct starting of inductive equipment. This boosts efficiency and reliability, reducing costs and ensuring stable power.

Application Scenarios







