CHF94.–
Shelly Pro 3EM 120A
Question about Shelly Pro 3EM 120A
Hello, With this product we can know our consumption, but can we know what our solar installation produces or rather what goes back into the grid to better optimise our consumption?
Helpful answer
No, not with a single device. Then one measuring device must be connected to the house connection and one to the inverter.
But then you still have to do the maths. The inverter should actually tell you how much electricity you have produced.
Ideally, it should also show the feed-in. It depends on the device, maybe you can integrate the Shelly into the inverter.
Otherwise, I measure this with the solar manager and a Telsa Powerwall gateway.
These devices talk to each other via LAN using the MQTT protocol.
The device measures in which direction the current is flowing, it also shows in the graph (and as a number) how much is being fed back. If the meter is installed at the entrance to the house, it can of course only measure the IN and OUT energy from the house; if you want to know what the solar system is producing (normally a good inverter shows this), a second device must be installed.