I have a main 6kw with pylontechs (28kw) and an easysolar offgrid 48v 3kw 250/70 with 40a ac output for one ring main.
The offgrid is in a conservatory with 10 panels mounted in the garden, facing south in a row earthed with one ground rod.
The easysolar is earthed dc extenally in ironstone with a ground rod 3m away. I think pylontech can be chasis grounded but though to wire it to the same plumbing pipes the house and other system is on. Is this ok?
The consumer unit 40a - grounded on the same pipework?
SPD surge protection device - would this be needed to be externally earthed and if so can it use the same earth rod as the easysolar - my guess is it cannot but running out of places.
thanks
