Haven't modelled it but I'd guess I would be mostly self generating. There will be days I'll use Eskom.
Based on 500 kWh/month we need 17 kWh/day. I'll have 10 kWh battery to get through the night. While generating 7kW when the sun is out.
All a bit variable but I figure the more you throw at it the better. But fuck, really, R200k is my limit!
Oh you’ll generate a lot more than 7kWh when the sun is out.
I’ve peaked at 40kWh a day and easily go over 30 on a sunny day as long as I use enough power to make the most of it.
Only ever used tumble dryer as an emergency before now I haven’t hung washing since May. Dishwasher runs every other day as well and the aircon is on in my office whenever it’s even slightly cold.
I can imagine through summer it will be pumping all day.
200k was my hard limit as well, which is why didn’t go with 20kWh batteries from the very start, but now I’m already planning to spend another 50k of the money I’m saving and putting back in my home loan to add another 10 panels East and West and one more battery which should mean I have at least two more sun hours in winter and enough capacity to completely absorb a bad day.
And I tell you when the only indication of load shedding is noticing it’s dark outside or you happen to see the lights flicker as is switches to off grid then you quickly forget about the cost.
Projected over 10 years my system is entirely free. The only catch is that I paid for it up front.
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