Mike's (non-Sunsynk) System

LPCPT said:
So from them till now we have an approx 30% increase. Insane!!!
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Not really 30%. Those are 2nd life batteries. There's no way that 1st life batteries cost R56k for 15 kWh, even 2 years ago...
 
Mike Hoxbig said:
So when the domestic is here and there's cloud in the afternoon, the batteries only get charged to like 85% by evening. It's 13:00 now and even though I generated 22 kWh so far, the batteries are only at 54%.

So now it looks like I need more panels. FFS it never ends...
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Many people don't appreciate the levels one needs to go to be absolutely off-grid and be independent, without compromise, on Eskom.

For a single household with a family.
 
Napalm2880 said:
Just placed my order.

I'm starting small, and will expand when I better understand my usage patterns, and add batteries and panels accordingly.

Earliest date I could get for installation was 8 May :eek:.

View attachment 1486373
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Price is not bad. I have similar. One 5kwh battery is not much for that system. You’ll probably need it to be 100% charged by the grid for the 4.5 hour loadshedding. I started with two batteries and have just ordered a third.
 
Pho3nix said:
Vendor?
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Only two vendors out of about 12 bothered to get back to me and arranged a site visit, DRES and Solar Advice. DRES installed a system for a friend of mine and he's very happy with it and the after sales support. Solar Advice I saw mentioned here on myBB and their quote came in marginally higher than this one. I was impressed with their knowledge and professionalism. Ultimately I went with DRES because they don't charge for any additional callouts eg. Adding a battery or extra panel and their team isn't outsourced like Solar Advice. Having a friend recommend them swayed my decision more than anything.

If you think the installation dates are insane, you should see what the lead times are to get a site visit. It's like 2 months minimum!
 
Pegasus said:
Price is not bad. I have similar. One 5kwh battery is not much for that system. You’ll probably need it to be 100% charged by the grid for the 4.5 hour loadshedding. I started with two batteries and have just ordered a third.
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It's almost certainly underspecced. We're going to have to have a serious change of habits in the house.
 
Napalm2880 said:
It's almost certainly underspecced. We're going to have to have a serious change of habits in the house.
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It’s not an off grid system, but you should be good for Stage 6 to 8.
 
Katelknaap said:
What's the C rating on those batteries? If it's 0.5 it will kneecap your system severely as your draw will be limited to half of the battery"s capacity during loadshedding.
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Shotos can do up to 0.75C i think
 
Katelknaap said:
Recommend 0.5C, max 1C. Maybe not the best choice when starting off with 1 battery?
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It depends on how heavy a user you are.
My battery mostly just fills the void when I'm short on solar or carries the load during loadshedding.
All my heavy stuff is on non-essentials so during loadshedding im only loading up like 1000w max.
I also only have a 5k sunsynk which means that the 1C works fine for me.
I charge at 60a, discharge at 80a. Haven't had any overloads as yet.

If you have an 8k deye/sunsynk then you probably need 2 batteries but again depends on how much load you want to pull.

The only battery I'm aware of with massive 1.5C rating is Greenrich, but I haven't researched too much because I have something that met my budget and needs.
 
Katelknaap said:
Recommend 0.5C, max 1C. Maybe not the best choice when starting off with 1 battery?
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The installer recommended the Shoto. Said he's done over 300 installs with Shoto and hasn't had issues. My sister-in-law is getting the same system installed in April. Will be interesting to see how it works out for them. I don't have much heavy current stuff in the house. The only thing that would really be of concern would be the geyser.
 
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