Weiheng + Shelly

What Zerofy can do with Weiheng and Shelly

In practice

• Solar mode switches your Shelly plugs and relays on when there’s surplus, following your priority order and minimum runtime. Smart mode instead runs for a set number of minutes within the hours you allow.
• A Shelly plug can also measure a balcony solar system: set it as balcony solar meter in Zerofy.
• With a typical Weiheng home system (3.6–13 kW), plug loads get surplus on most sunny days; use priorities to decide whether they or bigger devices such as an EV charger come first.
• Zerofy gets new Weiheng data every 5 minutes and adjusts accordingly. A minimum runtime and an activation threshold in Autopilot keep passing clouds from interrupting switching.
• Zerofy also shows your Weiheng battery, so you can see whether surplus goes into the battery or into your appliances.
• Zerofy only sees devices in your Shelly Cloud account: a Shelly that was set up only locally, with cloud access switched off, won’t appear until you add it to your account in the Shelly app.

What Weiheng and Shelly offer on their own

Weiheng: WHES says ECOS can switch conventional appliances through smart plugs, without naming the plug models.

Shelly: In the Shelly Smart Control app, scenes can switch loads when a Shelly Pro 3EM measures export (negative power), e.g. a three-stage heating rod at 1,500, 3,000 and 4,500 W of surplus with a 2-minute validity condition. Shelly notes that load priorities or forecasts need an external control system; plain scenes only react to thresholds.

Zerofy connects the two: it reads Weiheng production and controls your Shelly plugs and relays to match, together with your other devices in one app, with dynamic tariffs and forecast-based Smart mode.

Setting up Weiheng and Shelly in Zerofy

1. Connect Weiheng

Zerofy connects through Weiheng’s partner cloud: you enter your system’s serial number in Zerofy, and Zerofy links the device and reads inverter, meter and battery data.

1. Make sure your Weiheng system is online.
2. In Zerofy, choose Weiheng and enter the serial number of your system.

2. Connect Shelly

Zerofy connects to your Shelly Cloud account; it switches plugs and relays on and off, records their power every 5 minutes and lets Autopilot run them on solar surplus or in Smart mode.

1. Set up new Shelly devices in the Shelly app first.
2. In Zerofy, open the Shelly section under HVAC and Appliances and enter your Shelly account credentials.
3. Select the devices you want to use in Zerofy.

Good to know: A Shelly Pro 3EM is added separately in the Meters section; the device list there only shows Shelly Pro EM meters.

Step-by-step guide for Shelly

3. Turn on Autopilot

In Zerofy, open your Shelly plugs and relays, turn on Autopilot and choose Solar – or Smart to also use dynamic tariffs and forecasts. Set the priority, activation threshold and minimum runtime.

Dynamic tariffs

Zerofy can also run your Shelly plugs and relays on dynamic electricity prices (EPEX Spot or Nord Pool, e.g. Tibber or aWATTar) or on a fixed time-of-use tariff. Smart mode combines those prices with forecasts of your household consumption and your Weiheng solar production.

Learn more about Smart Mode

About Weiheng and Shelly

Weiheng – Weiheng (Jiangsu Weiheng Intelligent Technology, Wuxi, China) is a battery storage maker; in 2025 Weiheng Energy Storage and its home brand ECACTUS were merged into the WHES brand. For homes it sells all-in-one hybrid storage systems: the single-phase PP-S2 (3.6–10 kW, 4.99–19.9 kWh) and the three-phase PP-T1 (5–13 kW, 9.98–29.94 kWh). Monitoring app: ECOS.

Shelly – Shelly Group (formerly Allterco) is a Bulgarian company based in Sofia. It makes Wi-Fi smart plugs, relays for the switch box or DIN rail, and energy meters such as the Shelly Pro 3EM. Products: Shelly Plug S Gen3, Shelly Plus Plug S, Shelly 1PM / Plus 1PM / 1PM Gen3, Shelly Pro 2PM, Shelly Pro 3EM energy meter.

Manufacturer information last checked: October 2026.

All devices that work with Weiheng