LAWSON Convenience Store Energy Management System Project

Customer Pain Points

- Data Management Challenge: With numerous stores and dispersed data, real-time information acquisition and analysis are difficult, leading to information silos that affect decision-making and operational efficiency.
- High Renovation Cost: The wide distribution of stores results in high labor and travel costs for renovations.
- Management Difficulty: The small size of individual stores makes it costly and inefficient to set up separate meter reading or billing systems.
- Complex Commissioning: IoT system commissioning is intricate and requires professional technical personnel.
- Complex Financial Reconciliation: Utility bills from each store need to be consolidated at headquarters, involving a large amount of error-prone reconciliation work.
- Data Stability Requirement: Lost data must be automatically retransmitted. The system's group architecture, organizational energy management, and user group management require precise implementation.

Acrel Solution

- Energy Meters:
    - ADW210 Multi-circuit IoT Smart Energy Meter: Monitors up to 4 three-phase or 12 single-phase circuits, measuring parameters like kWh, kVarh, current, voltage, and power. Supports various communication methods and additional functions.
    - ADW300 IoT 3-phase Wireless Smart Energy Meter: With diverse communication methods, it measures three-phase active power, reactive power, current, voltage, and harmonics, making it suitable for various scenarios.
    - ADL400 Three-phase DIN Rail Energy Meter: Measures three-phase AC power parameters with high accuracy. Supports multiple functions and communication methods.
- Gateway:
    - AWT100 IoT Smart Gateway: Supports multiple upstream and downstream communication methods and protocols. It can connect to 20–25 Acrel devices via RS485 (MODBUS-RTU).
- IoT EMS Platform:

IoT EMS Platform Real-time Monitoring Interface

IoT EMS Platform Energy Analysis Interface

Project Outcomes & Benefits

- Energy-saving Retrofit Basis: By comparing store energy consumption levels, key energy-consuming equipment such as air conditioners, signs, lighting, and heaters is assessed for energy-saving potential. The platform calculates the actual payback period.
- Energy Performance Management: Concepts such as energy consumption per unit area and regional average consumption are established. By linking store energy use with customer traffic, efforts are made to align turnover and energy consumption.
- KPI Comparison: Store energy consumption levels are compared to assess energy-saving potential in key equipment and calculate the actual payback period.
- Online Store Management: Each store's energy consumption is read online in real-time, reducing inspectors' workload and enhancing data accuracy and reliability.

Flied Installation:

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