I. Industry Pain Points

In recent years, Thailand's commercial real estate market has continued to heat up, with a large number of shopping malls, office buildings, hotels, and integrated commercial districts emerging in core cities such as Bangkok. However, the electricity management of most commercial buildings still relies on the traditional model—property management depends on manual meter reading for each household and manual settlement of electricity bills.

This model has significant drawbacks:

· Low efficiency—meters are scattered, meter reading cycles are long, and data is lagging;

· Large errors—missed or incorrect readings occur frequently, and data is difficult to correct;

· Difficulty in billing—the electricity bill settlement cycle is complex, it is difficult to collect overdue payments from merchants, and disputes between property management and tenants occur frequently.

II. Acrel Prepaid Meter Solution

Acrel provides a one-stop prepaid solution from terminal metering → data collection and transmission → cloud platform management, with hardware and software synergy, comprehensively covering the scattered electricity usage scenarios of commercial buildings.

1. Terminal Metering Layer (On-site Meters)

· ADL100-EYNK (Single Phase): Suitable for small shops, food stalls, and independent offices in office buildings. Rated voltage 220V, current specification 10(60)A(https://www.acrel.co.th/shop/adl100-ey-single-phase-prepayment-energy-meter)

· ADL300-EYNK (three-phase): Suitable for power equipment in large supermarkets, entire floors of offices, and hotels. Rated voltage 3×220/380V, supports direct connection of 3×10(80)A or connection of 3×1(6)A via CT(https://www.acrel.co.th/shop/adl300-ey-three-phase-prepayment-energy-meter)

·ADF400L (multi-circuit): Suitable for multi-tenant energy metering in shopping malls, office buildings, hotels, and apartments. Rated voltage 3×220/380V, supports monitoring of up to 36 single-phase or 12 three-phase circuits, with 3×10(80)A direct connection or 3×1(6)A CT connection.(https://www.acrel.co.th/shop/adf400l-multi-circuits-prepaid-energy-meter)

All meters are installed on 35mm standard DIN rails, have built-in relays, support billing systems and remote control.

2. Data Transmission Layer (Acquisition Gateway)

· AWT100 Wireless Communication Gateway: Downlink acquires meter data via RS485, uplink supports 4G, Wi-Fi, Ethernet, and other methods to securely upload data to the cloud. No complex wiring required, ready to use immediately, perfectly suited for the renovation of new and old commercial buildings in Thailand.(https://www.acrel.co.th/shop/awt100-wifi-iot-smart-wifi-gateway)

3. Cloud Management Layer (IoT Platform)

* Acrel Prepaid IoT Cloud Platform: Centrally manages all merchant electricity meters, supporting real-time monitoring, remote power on/off, account top-up, automatic bill generation, overdue payment alerts, and historical energy consumption analysis. Property management can monitor overall electricity usage anytime via PC or mobile app.

Demo link:

https://iot.acrel-eem.com    name:  acrel    password:123456

III. Why Choose Acrel

1. Say Goodbye to Manual Meter Reading: RS485 communication uploads electricity data in real time, completely eliminating traditional manual meter reading. Data is accurate and timely.

2. Worry-Free Billing: The prepaid model allows for "pay first, use later," with automatic power cut-off for overdue payments, solving property management billing problems at the source.

3. Remote Control, Flexible and Efficient: Built-in relays support remote power on/off; power can be immediately cut off for merchant defaults and restored after payment is made.

4. Traceable Data, Transparent Management: Real-time monitoring of all electrical parameters including U, I, P, Q, PF, and kWh; data supports uploading to a prepaid cloud platform; bills are automatically generated, ensuring clear and traceable finances.

5. Easy Installation, High Adaptability: Standard DIN rail installation, compact size, suitable for renovations of old and new commercial buildings or new construction projects; flexible single-phase and three-phase options available.