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gjm

Solar quote

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Hi, please comment or provide feedback on the following solar quote. It is for a 19.5kW solar system with 11.1kW batteries and geyser conversion.

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thats a good price.

But I am curious why post such on a public platform instead of requesting alternate quotes to compare in private?

what is the intention as there are a handful of Solar MD installers?

Just curious that's all.

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How exactly is 5.4KW worth of panels considered 19.5KW?

I don't see a generator in there? If its truly a off grid setup (No AC available) then you definitely need a backup generator, that solar array will on a bad weather day only generate around 3-5kWh for the whole day and you will be sitting in the dark.

I would say to even consider "Off grid" you would need a backup generator, and double that solar array.

 

Edit: I realize that you didn't say its a Off grid setup, I simply inferred it from the quote.

Edited by PJJ

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2 hours ago, Fazil said:

thats a good price.

Yes, I agree that seems reasonable, the only thing, should you want to purchase all the items excluding installation what will it than cost as you can’t see labour costs but only lots of consumables and you still need a quote from a sparkie for connection and COC.

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3 hours ago, PJJ said:

How exactly is 5.4KW worth of panels considered 19.5KW?

Maybe it's an old quote that was adapted and some things slipped through? Maybe the spec was 19.5kWh and the hour bit got left off.... who knows.

Me... I cannot imagine spending 70k on batteries and then going with the cheap Axpert inverter. That's like fitting a PVC bullbar to your Hilux... 🙂

 

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30 minutes ago, plonkster said:

Maybe it's an old quote that was adapted and some things slipped through? Maybe the spec was 19.5kWh and the hour bit got left off.... who knows.

Me... I cannot imagine spending 70k on batteries and then going with the cheap Axpert inverter. That's like fitting a PVC bullbar to your Hilux... 🙂

 

I am sure you just gave the Hilux guys an idea lol

But the Solar MD team seem to be doing some impressive stuff with the Axpert.

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1 hour ago, Gerrie said:

Yes, I agree that seems reasonable, the only thing, should you want to purchase all the items excluding installation what will it than cost as you can’t see labour costs but only lots of consumables and you still need a quote from a sparkie for connection and COC.

Sparkie on a 5kwp system will probably charge about R5k with single phase coc which still makes the cost/watt around R32 incl VAT which is on the lower scale of the market distribution curve (using my installed empirical data to support my hypothesis)

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Thanks for the comments! I wasn't aware that there are only a handful of Solar MD installers. We have limited options for installers in the area and I just wanted to make sure I am heading in the right direction.

It is not supposed to be an off grid system, so won't mind (for now) if I need Eskom for a few hours per day or few cloudy days. I will not connect the aircons and oven to the solar system.

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6 hours ago, PJJ said:

How exactly is 5.4KW worth of panels considered 19.5KW?

Yeah, they're confusing kW and kWh, and A and Ah like it's mos maar all the same thing you know and the secretary can just as well type it up.

Best guess is that two, maybe 3 or 4 of the panels will be dedicated to the AC/DC geyser system, and with the remaining 4kW or so of panels over a sun-day of around 4.5hrs average they get to around that amount of 19.5kWh theoretical energy generated over the day. Plausible? Workable? Probably not way off. Just for what one is spending I'd personally go for something like the Axpert King, just a fraction more cost, for something that can blend power sources.

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