I can’t comment on the prices, but for an ESS system (using PV power with a battery) you might want to look at least double that battery capacity. 10kWh makes more sense. 5kWh will be depleted in 1 hour if you draw 5kW from the inverter.
I would also suggest 8x 620W panels. 2x strings of 4 panels each will match the MPPT voltage better.
They are both long-running and well-established sites. Sustainable has their domain registered in 2002 (!) and has been in business for yonks. They are usually a tad on the expensive side, but rumour has it delivery is free if you live around Cape Town. I may be wrong… it has been a long time.
Livestainable domain is registered April 2019. Has multiple payment options including credit cards, zapper, Snapscan, etc. Company registration number and VAT number right on the front page (someone is welcome to check that), they actually have a positive ratio on HelloPeter, Facebook presence. No physical address or phone number though. Only red flags (sustainable has those covered as well). They are a legitimate web shop though.
I can work from home, MS Teams and all, through 4 hrs load-shedding on a 2 year old 12v 100ah lead-acid with no-name Intenyyuptidle (sic) Power Supply 3000w. Only the inverter side still works so I have a Ctek 7A charger directly on the battery.
Maybe I only need a 3kW system but I am not sure if it is a good long-term investment. 5kW inverter may be easier to sell second-hand. Or, Pta may eventually support/allow feed-in when I may want to parallel because I have roof space.
This is one of those cases, Don’t ask for permission, apologize IF you get caught.
Everyone I know in Pta/Jhb cares not for the Munics are out of control to focus on such a teeny thing when they are fighting for power, control, o be able to reap "profits.
Just don’t feed back, still use some Eskom, en enjoy having a grid-tied system.
Note: The above is not intended as correct advice or suggestions.
Agreed. I think he is talking of one of these. That’s ancient tech. You wire it to analog inputs on the Multi itself, but the only real use case I occasionally see for it, is people using that to measure a non-sunspec PV-inverter. This is indeed not the right item for this.
Instead I’d look at this, if your inverter is close enough to the incoming feed. It is a bog standard SCT013 that costs less than R200, although it must be said that the hobby-stores focus more on price than quality, so YMMV.
