In-depth Analysis of Jiangsu Phase II Grid-side Energy Storage Power Station (Grid-side Application Scenario Case)

Created on 06.25

In-depth Analysis of Jiangsu Phase II Grid-side Energy Storage Power Station (Grid-side Application Scenario Case)

——The commercial secrets and technological breakthroughs of China's largest grid-side energy storage cluster

1. Project Background: "Stabilizer" of the Yangtze River Delta Power System

Load pressure: Jiangsu's maximum electricity load exceeds 130 million kilowatts (surpassing Germany's national total)
New Energy Challenge: Wind and solar power account for 28%, with daily power fluctuations exceeding 40%
Policy Driven: Jiangsu Province mandates in 2023 that new energy projects must have energy storage at 15%×2h.

2. Project Overview: The Speed of China in Numbers

Parameter
Phase One (2021)
Phase II (2023)
Rise amplitude
Total scale
1.02GWh
2.91GWh
+185%
Single station maximum capacity
50MWh
200MWh
+300%
Response Speed
200 milliseconds
90 milliseconds
Speed up by 55%
Participating site
8 seats
23 seats
Covering 13 cities

3. Technical Solution: The "Jiangsu Standard" for Grid Energy Storage

🔹Core Configuration
Battery: CATL 280Ah dedicated power cell (cycle life 12,000 times)
PCS: Sungrow 3.45MW Modular Inverter (Efficiency > 98.5%)
EMS: NARI Jibao Intelligent Dispatching System (Access to the Provincial Virtual Power Plant Platform)
🔹Innovation Highlights
Topology optimization: DC side voltage increased to 1500V (loss reduction of 15%)
Firefighting Revolution: Pack-level Perfluorohexanone Fire Extinguishing + AI Thermal Runaway Early Warning
Module retirement: Battery cascade utilization embedded interface (connecting to provincial 5G base stations)

4. Business Model: Diverse Revenue Streams to Solve Economic Challenges

0
Typical site economic account (taking Nanjing Jiangbei Station as an example)
Index
Value
Investment amount
¥320 million
Annual Income
¥62 million
Among them, the frequency modulation revenue
¥2.35 million/month (63%)
Payback Period
5.8 years

5. Operational Breakthrough: Paradigm Revolution of Power Grid Enterprises

🔹Comparison with traditional thermal power frequency modulation
Dimension
Coal-fired unit
Energy Storage Station
Response Speed
minute-level
millisecond level
Adjustment accuracy
±2%
±0.5%
Carbon emissions
2.8kgCO₂/kWh
0
Marginal Cost
¥0.15/kWh
¥0.03/kWh
🔹Grid Synergy
Reduce the risk of power restrictions in Suzhou Industrial Park by 72%
Assist in increasing the offshore wind power consumption rate in Rudong to 97%

6. Policy Innovation: Jiangsu's Unique Mechanism

🔹Key Support Policies
Two-part electricity price: Capacity price ¥220/kW·year + Energy price ¥0.3/kWh
Auxiliary service market: Frequency modulation compensation up to ¥12/MW·time
Network fee reduction: Energy storage discharge is exempt from transmission and distribution charges

7. Industry Impact: Defining New Standards for Grid Energy Storage

🔹Three major demonstration effects
Scale effect: The energy storage scale in a single province exceeds the global total in 2020.
Technical output: Huawei/Ningde Times solution exported to Europe and America after verification in Jiangsu
Financial Innovation: The first national energy storage infrastructure REITs (Huatai Jiangsu Energy Storage REIT)
🔹Pitfall Guide
Site Selection Traps: Avoid within 5km of Chemical Parks (New Safety Regulations)
Misjudgment of income: Actual frequency modulation income is about 60-80% of the theoretical value.

8. Battery Health Heatmap

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9. Future Evolution: 2025 Planning Outlook

🔹Phase III Project Blueprint
Expand to 5GWh, achieving 100% second-level response for new energy across the province.
Pilot sodium-ion battery energy storage (cost reduced by 30%)
Access to the Yangtze River Delta Integrated Electricity Market
💡
Summary
"When Germany was still debating whether to build the first GW-level energy storage, Jiangsu had quietly built the world's largest grid-side 'energy storage fleet' — this is China's answer to the new power system."
Need the "Jiangsu Energy Storage Policy Compilation" or "Frequency Regulation Revenue Calculation Model"? Please feel free to contact us!

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