26 minutes ago, Scorp007 said:

OK now we are on the same page. I never knew Eskom price units in the same way as Munics. I have always been jealous when I see their low rates per unit but also happy to not pay their daily charges just for having power.

Based on my 15kwh per day if you can manage to use all your power generated and stored you should meet your target.

I use 100% of my generation and I can just say my system over 39 months have generated 4.04kWh/1kW of panels installed in Gauteng. It would be a bit higher but I generate no power during LS unless I'm at home during 4hr LS over weekends while sun is shining.

Fantastic , thanks!

FYI my network charge is R486 pm excl! 
0-600kwh tariff is R1.83/kWh vs 600+kWh tariff of R2.82/kWh 

On 2022/09/19 at 6:19 PM, PRP said:

I can do the install myself so that should save a bit. I didn’t expect R100k, was thinking of just adding 4000W of solar but I could be missing lots of hidden costs! I have been going in circles for a while, going up and down the spec curve. Maybe R25k is better and just learn to live carefull, changing over the plugs to mains after every shed. 

The reason for the sunsynk was to be able to easily push back excess solar during the day to the non essential loads, not really for the AC+PV blending. To wire the geyser into the output of the inverter I would need to jump to 7.2kw Kodak for R18k and then worry about a smart switch on the geyser opens  during load shedding.
 

I might be missing all sorts of other costs or over estimating the savings. I hope someone else has been in and out of this rabbit role like me and can give me some results after their install.  

I have been in this rabbit hole for a long time and the more I look at better priced system the more I want to by the expensive ones but also could not justify the cost. I also import Sonoff so we designed boards that could migrate the load to Eskom around 3 pm and back to Solar at 9 am. They are quiet effective and using Sonoff, IFTTT and Broadlink the Automation shuts the aircons down with the broadlink remote moves the load and then turns them back on. Also did that with the Sonoff's in Scene's. It works really well thats how we built and designed the Loadshedder because the boards cost's are higher. We got on a average day using a Growwatt 5000, with 9x310 panels around 4kW a day more.  When load shedding would kick in we still moved the non-critical devices to Eskom which of course would be off the inverter.  Then around a year in of testing we simplified it and built the Loadshedder which just shuts devices down and keeps the cost much lower and has so many benefits like delayed startup and small delay's between device's resulting in smaller dips. The house goes into a low power consumption mode when there is no sun and load shedding starts.

 

 

Edited October 10, 20223 yr by Sonoff Africa
Removing Link