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Yiteng Case Sharing 15 - Shenzhen Industrial Park Light Storage and Charging Integration Project
Created on 06.27
In-depth Analysis of the Integrated Photovoltaic Energy Storage and Charging Project in Shenzhen Industrial Park (User-side Application Scenario Case)
——A sample of zero-carbon transformation in China's manufacturing center, how to achieve "freedom of electricity"?
1. Project Background: Energy Anxiety in the Greater Bay Area Manufacturing Industry
Electricity price pressure: The peak-valley price difference in Shenzhen exceeds ¥0.9/kWh (peak electricity ¥1.2 vs valley electricity ¥0.3)
Power supply restriction risk: In the summer of 2023, industrial parks were forced to stagger electricity usage for 23 days.
Carbon constraints: Export enterprises face EU CBAM carbon tariffs, green electricity demand surges
2. Solution: Trinity Energy Revolution
🔹System Architecture
Module | Configuration | Core Functions |
Photovoltaic | 15MW rooftop photovoltaic (utilization rate 85%) | Daily power generation of 60,000 kWh (covering 30% of the load) |
Energy Storage | 6MWh liquid-cooled lithium battery (2 charge 2 discharge) | Arbitrage + Emergency Power Supply (4-hour full plant backup) |
Charging | 60 units of 120kW DC fast charging piles | Meet the demand for 200 electric trucks in the factory area. |
🔹Intelligent Scheduling Logic
3. Economic Model: From Cost Center to Profit Center
🔹Annual Revenue List:
Revenue Sources | Amount (ten thousand yuan) | Calculation logic |
Electricity arbitrage | 620 | 6MWh×2 times×¥0.9 price difference×350 days |
Charging service fee | 180 | 60 piles × 8 cars/day × ¥10 service fee × 300 days |
Demand Response Subsidy | 90 | Participate in peak shaving and valley filling of the power grid (¥200/MW·time) |
Carbon emission reduction benefits | 50 | 12,000 tons CO₂ × ¥42/ton (Shenzhen carbon price) |
🔹Investment Return
Total investment: ¥48 million (including government subsidy of ¥6 million)
Annual comprehensive income: ¥9.4 million
Payback period: 5.1 years (IRR 18.7%)
4. Technical Innovation: Shenzhen Special Solutions
🔹Industrial scene adaptation
Staggered production mode: The injection molding machine operates at full load during the energy storage power supply period.
V2G Pilot: Electric Truck Batteries Participate in Factory Peak Shaving (Testing in Progress)
Digital Twin: Huawei Digital Energy Intelligent Dispatch System (Prediction Error < 5%)
🔹Extreme Weather Response
Typhoon mode: Photovoltaic bracket withstands level 16 wind
Flood control design: The energy storage container base is raised 1.5 meters
5. Policy dividends: Shenzhen exclusive support package
🔹Triple Incentive
Investment subsidy: 30% of the total investment in the solar storage system (up to ¥5 million)
Charging facilities: DC pile ¥300/kW construction subsidy
Green Power Certification: Each kilowatt-hour of photovoltaic electricity earns an additional ¥0.15 in green certificate revenue
6. Industry Impact: Manufacturing Transformation Template
Reproducibility Assessment
Conditions | Shenzhen Case | Minimum Applicable Standards |
Electricity expenses | ¥20 million+/year | ¥5 million+/year |
Roof area | 80,000㎡ | 20,000㎡ |
Transformer Load Rate | 75% | 60% |
🔹Extended Scenarios
Dongguan Electronics Factory (24-hour continuous production)
Foshan Ceramic Industry Park (High Energy Consumption Process)
7. Energy Flow
8. Future Evolution: 2025 Upgrade Plan
🔹Next stage focus
Access to Shenzhen Virtual Power Plant (expected annual revenue increase of ¥1.2 million)
Expansion of Phase II 10MWh Energy Storage (Adapted for New Production Capacity)
Pilot hydrogen energy storage complementary system
💡
Summary
"When peers are still complaining about power restrictions, this park has achieved 'power freedom'—using sunlight during the day, off-peak electricity at night, and generating power by itself at critical moments."
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