GoodWe ESA

Connect your GoodWe ESA all-in-one home battery to Homey, locally over your own network. No cloud account and no SEMS portal needed. Homey finds your ESA on the network by itself, and follows it when the dongle gets a new IP address. One pairing adds three devices that work together with Homey Energy: the inverter (solar power, house consumption, back-up load, grid status), the battery (state of charge, charging state, charge and discharge power, energy counters, battery racks, state of health) and the GoodWe smart meter (grid import and export, per phase). With control switched on in the app settings, Homey Energy can steer the battery directly: choose Homey as the battery mode and Homey sets the charge or discharge power, or choose self-use or conserve (keep the battery full as back-up reserve). Flows can also steer the battery through the EMS mode of the ESA: charge from the grid, discharge, pause the battery, hold grid import or export at a set power, and set it back to automatic. This makes it easy to follow a dynamic energy tariff. Every command has a maximum duration, and the app sets the battery back to automatic after that duration, after an app restart and after a lost connection, so the battery never stays stuck in a forced mode. The inverter can also switch the export limit on and off from a Flow. An external EV charger can be kept off the battery: pass its power on with a Flow card and, while the car charges, the grid feeds the car and the battery keeps covering the house. Solar surplus still goes to the car, and when the charger stops the ESA takes over again. Dashboard widgets show the energy flow between solar, home, battery and grid, the grid right now with power, current and voltage per phase, the phase load against your main fuse, today's figures, the last 24 hours, and the battery with buttons to pause, charge, discharge or go back to automatic. The app also watches the voltage per phase and warns you before inverters switch off on overvoltage. The app posts to the Homey timeline when the grid fails or returns, on faults and when the connection to the ESA is lost. Requirements: Homey Pro with a GoodWe ESA that has a WiFi dongle (UDP port 8899) or LAN dongle (Modbus TCP port 502) on the same network. On some firmware Modbus has to be switched on by your installer in the SolarGo app first. Register knowledge is based on the open-source goodwe library (MIT, Marcel Blijleven) and the GoodWe Local integration for Home Assistant (Apache 2.0, haids3). This app is not made or endorsed by GoodWe.