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

Factory power supply
Oil and gas field mining area
Isolated islands or remote areas
Community power supply
Commercial or office building
Hospital power supply

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