Homes

1. Industry Pain Point: Anti-Reverse Power Is Mandatory Compliance for PV & Storage Grid Connection

Installing solar panels and energy storage does not guarantee successful grid connection. All distributed residential PV and storage grid codes in Peru and Latin America enforce a strict zero reverse power rule: solar generation output must never exceed household real-time load, and surplus electricity is prohibited from feeding back into the public grid.

Reverse power will trigger three severe consequences:

1. Grid Safety Hazards: Reverse current causes voltage fluctuations, damaging household appliances, transformers and triggering regional blackouts;

2. Grid Compliance Penalties: Grid operators may reject grid approval, force mandatory renovation, or impose heavy fines;

3. Accelerated Equipment Degradation: Inverters and storage batteries suffer long-term reverse current impact, drastically shortening service life.

Two traditional communication solutions carry fatal flaws:

• Wired RS485 Solution: Energy meters are installed in indoor distribution boxes, while inverters are placed on rooftops or balconies. Finished renovated houses require wall/floor drilling for wiring, damaging interior decoration and causing low homeowner acceptance.

• Conventional 2.4GHz WiFi: Domestic routers are mostly placed in living rooms, separated by multiple walls from distribution boxes. Severe signal attenuation and frequent disconnections disable anti-reverse power control, making compliance meaningless.

For years, the market lacked an all-in-one wireless anti-reverse power solution featuring wiring-free installation, simple commissioning and stable long-distance through-wall transmission.

2. All-New Solution: ADL200W-WFH Energy Meter + AWT100 Wireless Gateway

We launch a complete wireless anti-reverse power system built on Sub-1GHz WiFi HaLow low-frequency communication, consisting of two core hardware units to fully resolve wiring and unstable communication issues for residential storage:

1. ADL200W-WFH DIN-Rail Dual-Circuit Energy Meter

 
1P 18mm standard DIN rail mount, installed inside distribution boxes with AKH split-core CT sensors. Dual independent measuring circuits accurately calculate solar generation and household real-time load with millisecond-level parameter refresh. It instantly detects reverse power risks and supports wiring self-diagnosis & automatic phase correction.

2. AWT100-AP/WFH Wireless Gateway

 
Mounted beside inverters, it receives metering data via WiFi HaLow and transmits real-time signals to inverters to dynamically adjust generation power, realizing full-process intelligent zero reverse power control.

3. Why WiFi HaLow Instead of Traditional WiFi / LoRa?

WiFi HaLow operates on Sub-1GHz low-frequency bands, developed exclusively for long-distance through-wall IoT communication. Its advantages over mainstream wireless technologies are distinct:

1. Standard 2.4GHz WiFi

 
Relies on household routers as relays; multi-layer walls and floors cause massive signal loss and frequent disconnections, failing to support real-time anti-reverse power linkage.

2. LoRa Wireless Solution

 
Long transmission distance, but requires manual configuration of channels, addresses and encryption keys for every device, creating complicated on-site commissioning and low installer efficiency.

3. WiFi HaLow (Core Technology of Our Solution)

 
Superior wall penetration performance versus 2.4GHz WiFi, with transmission range matching LoRa. No router relay required, factory pre-pairing simplifies installation. It balances long-distance coverage and easy deployment perfectly.

4. 1-Minute Ultra-Fast Deployment, No Professional Skills Required

All devices are pre-paired before factory delivery. Users can activate full functions immediately after power-on, without laptops or professional configuration software:

1. Standard Installation: Power on meter and gateway, automatic communication connection, anti-reverse power function activated instantly.

2. Re-Pairing Process: Long press the gateway pairing button until indicator flashes red-green for standby. Press the meter pairing button within 5 minutes, auto-pairing completes within 60 seconds.

 
General electricians or even homeowners can finish installation independently, cutting on-site labor costs and after-sales failures drastically.

5. Real Residential Environment Communication Test Results

Field tests covering multi-story and cross-unit residential scenarios deliver stable transmission data as below:

• Horizontal same-floor transmission: 100m distance through 5 walls, continuous stable data transfer;

• Vertical cross-floor transmission: Cross 3 floors with 12m vertical height, zero communication interruption;

• Cross-building transmission: 60m gap through 2~3 walls, real-time data synchronization.

 
Note: Actual communication performance may fluctuate based on wall materials, metal shielding and surrounding electromagnetic interference.

6. Applicable Scenarios

This WiFi HaLow wireless anti-reverse power system is tailor-made for residential new energy projects:

✅ All-in-one residential energy storage systems
✅ Balcony distributed PV systems
✅ Single/three-phase rooftop solar power stations
✅ PV & storage renovation for finished houses (no wall drilling allowed)

Core product feature summary: Wiring-free, no complex commissioning, long through-wall distance, consistent stable communication, fully meeting Peru’s mandatory zero reverse power grid compliance requirements.

7. Supplementary Product Advantages

ADL200W/ADL400W series DIN rail meters feature compact size, supporting four configurations: single-phase single-circuit, single-phase dual-circuit, three-phase single-circuit, three-phase dual-circuit. Functions include wiring fault diagnosis, CT failure detection and automatic reverse current correction. Wide operating temperature range (-25℃~+55℃), applicable for all residential areas in Peru below 2000m altitude, fully compliant with IEC EMC standards with complete certifications.