I am setting up a system with a bmwi3 battery , multiplus ii , mppt 250/60 , mppt 150/100 and a rs450/100 . I was supposed to be doing this with my father in law who is an electrician but COVID has put paid to that for the moment. I have everything up and running the way I want it using the ESS assurant but I’m struggling with the final step of connecting it all to the house due to a lack of understanding.
I’m planning on winter months using a 4 hour cheap rate tariff to charge the battery from grid to complement the solar.
I have a et112 that I think ( correct me if I’m wrong ) needs wiring in between the main incoming fuse and my consumer unit. I’m awaiting a smart meter and isolator before attempting that :)
If correct I think I can work that one out o.k. However, I have some confusion over ac out and ac in. . I’ve read somewhere that ac in is bi-directional so am I simply running a cable from ac in to my supply after the Carlo gavazzi ? Or do I run a cable from ac out to there and a power supply in from my consumer unit ?
many help would be appreciated and if I’ve missed out any necessary information please let me know.