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Sungrow HEMS

Use Zerofy as your Sungrow HEMS. Monitor solar production, optimize self-consumption, and automatically control EV chargers, heat pumps, and smart plugs.

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Zerofy HEMS App

Sungrow HEMS: TL;DR

Zerofy transforms your Sungrow PV system into a complete Home Energy Management System (HEMS). Monitor production, optimize self-consumption, and control your connected devices – all from one app. No additional hardware required.

About Sungrow

Chinese inverter and storage maker based in Hefei. Homes typically have an SH-RS single-phase hybrid inverter (3–6 kW) or an SH-RT three-phase hybrid inverter (5–10 kW) with the SBR battery (6.4–25.6 kWh, 3.2 kWh modules), connected to the cloud through a WiNet-S/S2 dongle. Its monitoring app is Sungrow iSolarCloud.

What is a Home Energy Management System?

A HEMS (Home Energy Management System) helps you get the most out of your solar installation. It monitors your PV production in real-time and automatically steers connected devices like EV chargers, heat pumps, and smart plugs to maximize self-consumption.

With Zerofy as your Sungrow HEMS, you can:

  • Monitor real-time solar production and home consumption
  • Optimize self-consumption through intelligent device control
  • Save on electricity bills with dynamic tariff integration
  • Track your energy independence and CO₂ savings

Key Features

Real-time Monitoring

See live data from your Sungrow inverter: current production, consumption, grid feed-in, and battery status.

Smart Autopilot

Automatically control EV charging, heat pumps, and appliances based on solar surplus.

Dynamic Tariffs

Integrate electricity spot prices (Tibber, aWATTar, etc.) to optimize for cost savings.

What Sungrow offers on its own

Before connecting Sungrow to Zerofy, it helps to know what Sungrow offers on its own:

  • EV charging: Sungrow sells its own AC chargers (AC007E-01, AC011E-01, AC22E-01), whose Eco mode charges on surplus when the charger is paired with a Sungrow hybrid inverter via WiNet. Larger setups with up to three chargers need the Sungrow iHomeManager; third-party wallboxes are not controlled by iSolarCloud itself.
  • Heating: SH-RT inverters have a DO relay that the iSolarCloud app can switch on export (Intelligent Mode: on once export reaches a set power, for at least 20 minutes), for example for an SG Ready heat pump via a contactor. The iHomeManager also has a DO port for heat pump control.
  • Other loads: The same DO relay can switch any other load through a contactor in Timing, Switch or Intelligent Mode; there is one relay per inverter.

How It Works

  1. Connect your Sungrow system – Zerofy connects to your Sungrow system through the iSolarCloud cloud, using your iSolarCloud login.
  2. Add your devices – Connect your EV, charger, heat pump, or smart plugs
  3. Enable Autopilot – Let Zerofy automatically optimize for solar self-consumption
  4. Track your savings – Monitor your energy independence and cost savings

Step-by-step guide for Sungrow

Why Choose Zerofy for Sungrow HEMS?

Zerofy HEMSHardware-based HEMS
Hardware costNone€500-1000+
InstallationApp download, 5 minutesProfessional electrician
Monthly costFree or €7/month (Plus)Varies
Device support60+ brandsLimited selection
UpdatesAutomatic, freeManual/paid

Connect your Sungrow system with these devices

EV Chargers

Beny Easee Fronius Wattpilot Huawei SCharger OCPP chargers Wallbox Zaptec go-e

HVAC / Heat Pumps

Alpha Innotec CTA CTC Daikin Nibe PHNIX SG Ready Sensibo Vaillant Viessmann tado°

Smart Plugs and Relais

Shelly myStrom

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