panels stp 250s-20/wd Array parameters 37.3v 8.63a I have pv commissioning sheet, NAPIT electrical certificate SSEG commissioning confirmation sheet,it goes solar pv, inverter , generation meter ,CU (in barn ) 130m cable ,farm shop ,20m cable, CU at housewhat model are the panels? we need the voltage and amperage output from the panels to be able to work out how they have been connected to drive the inverter,they may well have been configured incorrectly,
do you have a schematic,?
what paperwork and/or certificates has he provided you with?
you should have a complete pack of stuff, although this may only amount to a dozen or so pages,
there should deffo be a schematic of your install at your CU/fusebox/incoming supply point at the very least, you should also have a installation certificate.
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oh dear,
where has he put the generation meter etc at for the solar PV ?
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All so got MCS installer Certificate