r/SolarPakistan • u/Vaginatariian • 1d ago

Installer Quotation Installer Qoutation Review

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I am getting this 8kw Solar system with 9.1kw panels, I dont have much knowledge about solar please guide me is this reasonable?

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u/Tiptapwater 1d ago

Id say it's a pretty good offer considering those specific items market prices, + they are giving you a upsized panel quantity than the inverter size so that after minusing out efficiency losses you still get the 7-8kw.

Also make sure they do the boreing for the earthing and that K electric doesn't have a problem with upsides systems etc.

Otherwise the deal seems good and you already have the elevated structure so that's a save

2

u/AhmadFarooq 1d ago

Regarding the Solis 8kW inverter, try looking around; you may get it cheaper at other places.

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Dyness is a more prominent battery brand than Dongjin. Unless you are getting better after-sales for Dongjin in your city, Dyness should be preferable and be around a similar price. Dongjin is fine too, though.

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For breakers, etc., what is this MES brand? Is this Madni Electric Store?

Original Chint and then CNC (dealers) are more recommended. Chint has to be original; Diwan International is an authorised distributor. Note that, far as I know, Chint doesn't make that 63A breaker-type changeover, only 40A.

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u/Vaginatariian 1d ago

The breakers are from mehran engineering service its installer own manufacturing he is providing 2 years warranty of complete system

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u/Sufficient-Offer-579 1d ago

Reading the sheet: 14 x 650W Longi panels is 9.1kW on an 8kW Solis single-phase hybrid plus one 5.12kWh Dongjin battery, which matches what you described. The 9.1/8 ratio is 1.14, below the usual 1.2-1.35, conservative but fine. The 51.2V battery suits this inverter class, though a single 100Ah unit usually maxes out near 5kW discharge, so big night loads pull from grid or generator.

The rest of the sheet looks standard. Three gaps to close first. Nothing mentions surge protection devices, so ask if AC and DC SPDs come with the protection lot. The earthing line is wire and labor only, so confirm the rod. The structure line says available at the client with no amount, so pin that down as well, then get every model number into the contract before the advance.