New to this PV installing

[Cycle user]

Hello all, I have been an electrician for a number of years now, but have never ventured into PV before , however a builder has asked me if I can " do the electrics" !! For it. I understand the theory on it, dc/ax inverter etc. but am unsure on the final connection at the FB to allow the solar power into the consumer circuits, if you see what I mean. Also unsure of inverter size, array is 16 panels 4 kw, and unsure of paperwork, did hear that there was a lot to fill in. Thanks for looking

 

[stevie gill]

If the end user is looking to claim the feed in tariffs, the system will have to be certified by an MCS accredited installer. They can sub contract the work to you but then paperwork trail becomes tiresome!!

Inverter size would be determined by the PV system design. Dependant on where you are in the country and the orientation/angle of the array(s) the inverter size can vary between say a 3.6kw and 4kw. Sometimes it's more economical if the inverter is slightly undersized!!
As for power supplies, again this would be determined by the design. Distance of inverter from source is crucial - 1% volt drop is key in PV rather than the usual 3% on normal installs. Lots of potential issues based on your OP but we would all need way more info before committing any further........

 

[sedgy34]

If its a one off. You should sub it out

 

[Cycle user]

funnily enough, after going on the web and seeing cost of MCS and paper work involved thats exactly what i'm going to do