£eagle wrote: ↑Tue 05 Sep 2023 4:00 pm
If you go (half) off grid by not having feed back but e.g. use battery storage and/or Kibtek at night, do you need to involve Kibtek at all?
basically, any solar installation needs a permission. either off grid or on grid. but...
if you have a kibtek meter, you can not apply for an off grid installation, because you are "on grid connected". logical, or?
so, the "half off grid" you are asking for, or, better: "solar self consumption with mains back up (but no grid feed) systems" are not properly regulated.
why: because it is quite complicated as the systems (panels-inverter, internal software/working principle) are different.
it needs a polital will to eg, permit those, or, eg permit systems which are "selfconsumption incl batteries with mains back up AND excess feed.
(eg, in case batteries are full and low use, as eg, from middle march to june and oct to nov).
for this, you need laws, regulations, qualifications, maybe certifications. you need someone who knows what to write, courses to teach "whoever".(who could be the teacher?) and someone to check the systems electrical and functional (to regulations).
but to your question. its a grey zone.
it is not regulated, nobody asks, so, lets install.
mainly chinese crap = some panels, a hybrit inverter of doubtful electrical specs, cheap and often to small battery banks. some weard wiring, cheap and sometimes wrong mcbs, no proper earthing the lot... and go.
so again, for every "easy peasy" on grid systems you need an electric plan and kibtek comes for control.
! there is not any control for off grid systems, so your local electrician or anybody who call themselfes a "solar expert" can do what they want, but off grid installations are much more sophisticated.