Technical Support

Hello all - I've just spent too much time on this this morning, so I had to show it off. 😊

I appreciate it could be prettier, but it shows me exactly what I need. The inverter and batteries are in the loft so their location isn't purely symbolic!

Ignore the minus signs; the arrows show the direction of flow. (Ah, and I've just spotted I'm missing one from the inverter to the house... will fix.)

The numbers don't quite add up, mostly because there are various different sensors updating at different times and rates. Some come from my Sunsynk via Solar Assistant, some from MyEnergi devices, and some from a ShellyEM. The number below the car, for example, comes from my Zappi, and is only updated about once a minute, while the one above it (which shows the whole garage usage) comes from a Shelley and is updated every few secs so is more recent. But you get the basic idea.

I needed to do my own because of the way my CTs are set up. The 3053W number to the right of the house is what the Sunsynk sees as its grid export, and the Zappi is deliberately outside that, for example.

The 3952W from the inverter to the house is basically 'everything coming down from the loft' - the combination of the output to the grid, the essential UPS load, and the AUX (which I also use as a less-essential UPS output).

The thing on the bottom left is the water tank with an Eddi-controlled immersion heater. Numbers and arrows appear when any power is being diverted that way. Anyway, I thought it might be of interest. It's based on a simple diagram I drew and then overlaid values using the Home Assistant 'picture-elements' card, and it's probably sufficiently customised to my situation that the details are not much use to anyone else, but I'm happy to share chunks of code if wanted.

Quentin