Long An, Vietnam
Steel Factory
Project Overview
Steel manufacturing is a highly energy-intensive industry characterized by volatile power loads and high electricity costs. To address unstable power supply and reduce expensive grid electricity charges, a local steel factory in Vietnam deployed a grid-connected energy storage system. With flexible charge-discharge scheduling, the ESS effectively optimizes the plant’s power consumption structure and delivers long-term economic benefits.
Core Challenges
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Extreme power load fluctuations during the steel production process
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High electricity bills resulting from peak-time grid power usage
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Unstable utility grid affecting production continuity and equipment lifespan
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Difficulty balancing real-time power demand with energy allocation
Customized Energy Storage Solution
The system adopts a grid-connected operation strategy and is configured with:
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7 × 125kW grid-tied inverters
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4 × BES-P125X261E energy storage cabinets
With a total ESS capacity of 1MWh, the solution is perfectly matched to the high-load operational characteristics of steel manufacturing.
Designed for high-frequency cycling scenarios, the system supports two complete charge-discharge cycles per day. It works in coordination with the grid to enable intelligent peak shaving and improve the self-consumption rate of distributed power, making it ideally suited to the steel plant’s daily power consumption of approximately 13MWh.
Project Configuration
| Parameter | Specification |
|---|---|
| Rated Power / Capacity | 875kW / 1MWh ESS |
| Core Product | BES-P125X261E Energy Storage Cabinet |
| Device List | 7 × 125kW grid-tied inverters + 4 × BES-P125X261E cabinets |
| Operation Mode | Grid-connected |
| Daily Power Load | ~13 MWh |
| Cycle Mode | 2 charge-discharge cycles per day |
Key Benefits
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Peak Shaving – Avoid expensive peak electricity tariffs through intelligent load shifting
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Higher Self-Consumption – Optimize energy allocation to reduce reliance on the utility grid
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Stable Power Supply – Stabilize fluctuating loads to safeguard continuous industrial production
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Cost Reduction – Save up to $63,000 annually in electricity operating costs
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Energy Efficiency – Significantly improve the factory’s overall energy utilization efficiency