I have installed many Zappis and and some Eddis made by MyEnergi, but I wanted something open source to play with for my own house. I am looking for an open source solution to use spare solar and integrate battery storage system in the future.
From spare solar:
- charge the car
- when there is not enough spare energy for car charging, divert spare power to run immersion heater.
At night time when electricity is cheap and car battery is empty (like Octapus GO) I would like to charge the car (probably all winter). Or when there is even cheaper electricity available (like Octopus Agile) - charge the car and heat hot water (I am on Octopus Go and havent tried Agile tariff).
Few years ago I bought “OpenEVSE WiFi Emoncms EV Charging Station” (still sitting in the box) and I was thinking to add “emonPi Energy Monitor - Solar PV Bundle” (from reading it looks like it would work to charge the car from spare solar).
But I am not sure how to deal with hot water. Can a budget option like Solic 200 be used for this? I have been reading about “MK2 router” - would that do the job?