CEEC Energy Storage Solutions: Supporting Jiangsu’s Peak Summer Demand and Building a Green Energy Benchmark

Case Study

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CEEC Energy Storage Solutions: Supporting Jiangsu’s Peak Summer Demand and Building a Green Energy Benchmark

Operational Impact‌

1. Enhanced Grid Stability
During the 2018 summer peak, the ESS provided 500,000 kWh daily peak shaving, reducing the power gap by 80% with zero blackouts. Wufengshan Station alone contributed over 40% of regional peak capacity.

2. Economic & Environmental Gains
The project cut coal consumption by 12,000 tons/year and CO2 emissions by 35,000 tons/year (equivalent to planting 190,000 trees). Participation in ancillary service markets generated RMB 30 million annual revenue, with a payback period shortened to 6 years.

3. Global Replication
CEEC’s “Scenario-Based Solutions” were listed among China’s Top 10 Energy Innovations (2025). The model has been replicated in Hubei Yingcheng’s 300 MW Compressed Air Storage (world’s first fossil-free CAES) and Turkey’s 65 MW ESS, setting benchmarks for global energy transition.

   CEEC’s self-developed Energy Storage System and global expertise not only resolved Zhenjiang’s crisis but also propelled China’s energy storage sector toward intelligence and scalability. From Jiangsu to Türkiye, CEEC continues to drive the green energy revolution, delivering “Chinese Solutions” for global carbon neutrality. 

 

Date

2018

Client

Zhenjiang

Category

Power Plant ESSProjects

Location

Jiangsu

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Project Context

    In 2018, the eastern power grid of Zhenjiang, Jiangsu Province, faced severe electricity shortages due to the shutdown of three 330 MW coal-fired units at Jianbi Power Plant and delays in the commissioning of two 440 MW gas-fired units in Dantu. Despite grid optimization efforts, a 220 MW power gap remained during the summer peak demand period. With annual electricity load growth of 5%, the urgency for reliable power supply solutions intensified.

   To address this crisis, State Grid Jiangsu Electric Power Co., Ltd. partnered with CEEC to deploy an Energy Storage System (ESS) based on lithium iron phosphate (LFP) battery technology. The project, with a total capacity of 101 MW/202 MWh, aimed to enhance grid resilience through flexible ESS deployment.

   (Reference: Jiangsu Province’s peak summer electricity demand exceeded 100 million kW in 2018, with Zhenjiang’s gap accounting for 0.22% of the provincial peak.)  

Engineering Solution

1. Cutting-Edge ESS Design
   CEEC’s modular Energy Storage System utilized LFP batteries, with each 40-foot non-standard prefabricated cabin delivering ​2 MWh. Integrated temperature control, fire protection, and smart monitoring systems ensured ​95%+ conversion efficiency. At Wufengshan Station, liquid cooling technology stabilized battery temperature within ±2°C, extending lifespan by 20%.

2. Rapid Deployment & Cost Efficiency
   Leveraging a “Design-Build-Operate” model, CEEC completed Wufengshan Station in ​4 months. Prefabricated cabins reduced on-site construction by ​30%, while peak-valley pricing strategies boosted annual revenue per station to ​RMB 5 million.

3. Multi-Energy Integration
   CEEC linked the ESS with Zhenjiang’s ​200 MW solar and ​50 MW wind projects, creating a smart “Generation-Grid-Load-Storage” platform. The Yangzhong Sanyue station increased renewable energy utilization by ​12% through virtual power plant technology, providing ​15 MW daily peak shaving.

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