Renewable Energy Integration
The CTG Jimusaer ESS is the world’s first gigawatt-hour-scale vanadium flow battery (VFB) energy storage project and one of the largest operational VFB systems globally. Designed to support large-scale renewable energy integration, the project provides long-duration energy storage to address the intermittency of wind and solar generation by storing surplus renewable energy during periods of high output and discharging it during peak demand, thereby improving renewable energy utilization, reducing curtailment, and enhancing overall grid reliability.
Project Details:
- Project Name:
CTG Jimusaer ESS - Location:
Jimusaer, China - Total Energy Storage System:
200 MW / 1,000 MWh
Benefits:
- Peak Shaving
- Frequency Regulation
- Smoothing Output
- Improves Power Quality
- Black Start
- Emergency Back-up Power
Grid Operation
Xinhua Ushi ESS project is the world’s largest grid-forming energy storage station utilizing vanadium flow battery (VFB) technology.
It combines rapid frequency regulation with long-duration energy storage to support renewable energy integration.
The station employs innovative "grid-forming + energy storage" technology to proactively stabilize grid voltage and frequency, ensuring the secure and stable operation of the power system while addressing grid stability challenges.
Project Details:
- Project Name:
Xinhua Ushi ESS Project - Location:
Ushi, China - Total Energy Storage System:
175MW/700MWh
Benefits:
- Grid Forming
- Peak Shaving
- Frequency Regulation
- Renewable Integration
- Load Management
- Blackout Recovery
- Emergency Power Supply
Grid Operation
Dalian ConCurrent Energy Storage Project - known as the World's largest VFB project in city center.
This project features a 100 MW/400 MWh energy storage system designed to enhance grid stability and accommodate high levels of renewable energy penetration.
Envisioned as a 200 MW/800 MWh project divided into two phases, Phase I was successfully commissioned in 2022.
Project Details:
- Project Name:
Dalian ConCurrent Energy Storage Station - Location:
Dalian, China (in Downtown area) - Total Energy Storage System:
200MW/800MWh
Phase I: 100MW/400MWh
Phase II: 100MW/400MWh
Benefits:
- Grid Stability
- Peak Shaving
- Frequency Regulation
- Renewable Integration
- Black Start
- Auxiliary Power Supply
- Emergency Back Up Power
Grid Operation
The SPIC Panzhihua ESS is the world’s first front-of-the-meter vanadium flow battery (VFB) energy storage system using leased electrolyte. Located in Panzhihua, China, the 12 MW/60 MWh outdoor project was delivered in June 2025 and comprises two systems rated at 6 MW/24 MWh and 6 MW/36 MWh. By adopting an electrolyte-leasing model, the project reduces upfront investment while providing peak shaving, frequency regulation, renewable output smoothing, improved power quality, and emergency backup power, thereby enhancing grid reliability and potentially increasing the project’s return on investment.
Project Details:
- Project Name:
SPIC Panzhihua ESS - Location:
Panzhihua, China - Total Energy Storage System:
12MW/60MWh
(6MW/24MWh+6MW/36MWh)
Benefits:
- Reduce Upfront Investment
- Peak Shaving
- Frequency Regulation
- Smoothing Output
- Improves Power Quality
- Emergency Back-up Power
- Could Increase Interest Rate of Return
Behind the Meter
The Conch Zongyang Energy Storage Station is the world’s largest behind-the-meter vanadium flow battery (VFB) energy storage system and the first of its kind to adopt a leased-electrolyte model. Located in Zongyang, China, the 6 MW/36 MWh outdoor project was delivered in December 2022 and is expected to achieve an internal rate of return exceeding 10%. The system reduces energy costs, supports renewable-powered microgrids and net-zero manufacturing, advances industrial decarbonization, and makes efficient use of limited land, providing a sustainable and cost-effective energy solution for industrial facilities.
Project Details:
- Project Name:
Conch Zongyang Energy Storage Station - Location:
Zongyang, China - Total Energy Storage System:
6MW/36MWh - IRR:＞ 10%
Benefits:
- Enhanced Energy Savings
- Advanced Decarbonization
- Sustainable Power through Renewable Microgrids
- Support for Net-Zero Manufacturing
- Efficient Utilization of Limited Land Space
Renewable Integration
The CECEP Qapqal ESS is the world’s largest vanadium flow battery (VFB) energy storage system dedicated to large-scale solar power integration. Located in Qapqal, China, the 75 MW/300 MWh outdoor project was delivered in June 2024. The system smooths solar power output, enables load following, minimizes renewable energy curtailment, and provides virtual inertia, peak shaving, and frequency regulation, thereby improving power quality and enhancing the stability and reliability of solar energy integration.
Project Details:
- Project Name:
CECEP Qapqal ESS - Location:
Qapqal, China - Total Energy Storage System:
75MW/300MWh
Benefits:
- Smoothing Output
- Load Following Capability
- Minimize Curtailment
- Offers Virtual Inertia
- Improve Power Quality
- Peak Shaving
- Frequency Regulation
Renewable Integration
The Woniushi Wind Farm Energy Storage Station is the world’s longest-running utility-scale vanadium flow battery (VFB) energy storage system, maintaining 100% capacity after more than a decade of continuous operation. Located in Shenyang, China, the 5 MW/10 MWh indoor system was delivered in December 2012 and supports a wind farm comprising 33 × 1.5 MW wind turbines. The project smooths wind power output, enables load following, improves power quality, minimizes renewable energy curtailment, and provides ancillary services and virtual inertia, thereby enhancing the stability and reliability of wind power integration.
Project Details:
- Project Name:
Woniushi Wind Farm Energy Storage Station - Location:
Shenyang, China - Total Energy Storage System:
5MW/10MWh - Wind Turbine:33*1.5 MW
Benefits:
- Smoothing Output
- Load Following Capability
- Improves Power Quality
- Minimize Curtailment
- Provides Ancillary Services
- Offers Virtual Inertia