Ningbo, Zhejiang
Smart Metering Factory
Project Overview
As a typical energy-intensive manufacturing plant, this smart metering factory in Ningbo faces high electricity expenses resulting from peak power consumption and rigid power demand for production lines. To optimize energy utilization, reduce operational costs, and build a reliable on-site energy system, the factory deployed a comprehensive PV and ESS integrated microgrid solution. The hybrid system delivers stable power supply, achieves effective peak shaving, and brings substantial economic benefits throughout the year.
Core Challenges
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High electricity costs due to heavy power consumption during grid peak tariff periods
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Difficulty balancing on-site power generation with actual production load
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Low utilization efficiency of distributed photovoltaic resources
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Demand for a stable, self-sufficient microgrid system for industrial production
Customized PV & ESS Solution
The project is built as an independent industrial microgrid, equipped with:
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Multiple GT3-125K 125kW grid-tied inverters
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Diversified energy storage devices including:
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30kW / 60kWh hybrid system
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100kW / 225kWh energy storage cabinet
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125kW / 261kWh energy storage cabinet
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Combined with a 956kWp photovoltaic array, the complete system forms a 615kW inverter system with 1,008kWh energy storage capacity. Operating as an integrated microgrid, it performs intelligent peak shaving and flexible energy scheduling to match the factory’s round-the-clock production needs.
Project Configuration
| Parameter | Specification |
|---|---|
| System Capacity | 956kWp PV + 615kW inverter + 1,008kWh ESS |
| Core Products | GT3-125K, BHF-X60, BHF-X225, BES-P125X261E/U |
| Equipment List | 125kW grid-tied inverters, 30kW/60kWh hybrid system, 100kW/225kWh & 125kW/261kWh ESS cabinets |
| Operation Mode | Industrial microgrid |
| Annual Power Generation | 847 MWh |
Key Benefits
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Peak Shaving – Effectively shift peak loads to reduce expensive peak electricity charges
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Cost Reduction – Save approximately $160,000 on annual electricity bills
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High PV Utilization – Maximize on-site solar power consumption and minimize grid reliance
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Stable Microgrid Operation – Ensure continuous and reliable power supply for manufacturing equipment
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Energy Optimization – Achieve scientific allocation of photovoltaic and stored energy for higher overall efficiency