Cyph3rZA

Awesome! I'll skip this one so another lucky can get their mitts on it

Sonoff Africa Loadshedder Bundel
1 × Sonoff Africa Loadshedder  
1 x Sonoff Dual R3     
1 x Sonoff iFan
1 x Sonoff 4 CH 220V

Sonoff Africa Loadshedder
The Loadshedder is a smart power detector that turns off appliances such as pool pumps, Geysers, and anything else you would like to switch off when load shedding starts.
 
Sonoff Dual R3
Connect and independently control up to 2 devices with the Sonoff Dual R3 with. The Dual R3 is packed with features such as energy monitoring
 
Sonoff iFan
Wi-Fi ceiling fan and light controller which allows you to use your phone to control it from wherever you are.
 
Sonoff 4CH 220V
Sonoff 4CH R3 is a 4 channel device designed to control 220 volt lighting circuits to give you the ability to integrate smart control into your existing home.
The link to the Lucky Draw will be posted later.

Thanks to @Sonoff Africa! Received the bundle in good condition, just in time for Christmas break. Time for some more DIY-ing!

Glad we found you! Congratulations and thank you to @Sonoff Africafor the awesome prize.
Sincerely
Jason 

No way! Almost missed the win! Thanks, this will help expand all the sonoff I already have. Ive fallen in love with the dual r3!

Hi, Sorry guys it been silly crazy trying to find a minute to answer as often as I can.
 
The Load Shedder is a smart power detector that turns off appliances such as pool pumps, Geysers, and anything else you would like to switch off when load shedding starts.
It also recover's the load when eskom power is back with delays.

No additional re-wiring of DB board is required. All appliances that need to be controlled require smart devices like Sonoff Basic or any other Sonoff products.
Aleks

Hi guys,
let me share my current solar LAB setup with you:
PV modules
The only installation option was the roof,  which unfortunatelly has a bad orientation: one side of the roof is facing East while the other is to the West. So I decided to install panels on the both sides of the roof. Luckilly, the panels are not so expensive and are going to last for decades, especially when compared to price and endurance of batteries. It's 36x 275Wp facing West and 36x 280Wp facing East. All together it's almost 20kWp of solar modules, but because of the orientation, the maximum possible power is quite a bit less than that. Panels are wired in four high-voltage string,  each having 18 panels connected in a series. The actual voltage of each string is 600V. Inverters, that I use, have a maximum allowed DC voltage of 900V, so there is a plenty of room for voltage increase that is going to happen during cold winters that we're experiencing here. For the DC cabling, I used 6mm2 solar cable.
WEST:

 
EAST:

 
Photo from mounting the modules:

 
Inverters
All the high-voltage strings are connected directly to a pair of InfiniSolar Plus 5K inverters, that are paralleled together. So, there's no combiner box under the roof. Of course, there are fuses placed in each string, one fuse for positive and one for negative. Every string has a surge protection too (Citel). The inverters are set in OffGrid III mode, so they use ESKOM just for syncing their frequency with the grid, but the grid itself is disconnected (there's a grid disconnect relay in each InfiniSolar). Therefore no energy is supplied back to the grid, nor can it be physically supplied. When a power spike on the AC output of the inverter occurs, the inverter sends the excessive energy to the battery. Such a spikes occurs whenever a strong appliance is turned off, for example geyser or kettle. If the battery is completely discharged, the inverters can automatically switch to the bypass from the mains. In such a case, solar energy is used only to charge the battery until the battery voltage reaches an acceptable level again. So far, it has not happened, but since winter is comming, I'm awaiting this to happen soon. If the grid fails, nothing happens, the inverters do not need the grid to run. Synchronization of both Infinis with the grid is drawing 4 Watts total. Well, I'm looking forward to see the invoice from the ESKOM The combined power of the inverters is 10KVA, so it can run ANY appliance that I need, even some combinations are not a problem. So I'm running a washing machine, geyser, fridge with ice maker, tumble dryer, induction cooktop, etc. Not counting numerous computers, laptops and TV's.
InfiniSolar Parallel:

 
Backup
Just to be safe, the LAB is backed by 3kVA UPS and the 8kVA genset with electric start. So I left the UPS to supply the light circuits, internet routers, firewall, DVRs, surveilance cams and other crap. The genset is wired in a way that it can supply the AC to the InfiniSolars in order to power the LAB and/or charge the batteries in a case of a real emergency. To be honest, I'm running a genset just once per month to do a regular "fire-drill", since it's cheap and loud as hell.
Battery bank
The battery bank is a 48V 200Ah LFP box that I've purchased as a product built to order. There's 16x100Ah Winston cell. So far, it works great, but my LAB has a night consumption of about 6kWh, so the battery is small in the long run. There's 16x 1A balancer, coordinated by a central BMS. The BMS has a small OLED display, so you can check the SoC, AmpHours, charging current etc. directly by looking on the box.

Monitoring
BMS cyclically send all it's status and all the values to the UART interface. So I hooked UART with Z-Uno and pass the values through Z-Wave wirelles network to the home automation (Fibaro). The Fibaro is already monitoring all electricity meters that I set up on AC in/out. It's also monitoring and controlling a number of electrical appliances I have. And sice I wanted to have everything in the one place, I'm monitoring the RS232 interfaces of both InfiniSolars. Thanks to this, with just a cellphone I can see how the laboratory works while I'm on the other side of the world. For example, I can turn any appliance off/on or change the temperature of the heating in each room separately. Well, I hope that this supercomplicated system won't kill me in somewhere in the future. BTW, the geyser is operated in the same way - Fibaro turns it on when the batteries are full and there's a lot of sunlight. Values from Fibaro can be easily transferred to EmonCMS, so I do in order to keep a history charts. In each InfiniSolar, I have an SNMP Web Pro Card installed, so I do not need the SolarPower and SolarPower Pro software at all. Built-in webserver on SNMP cards is quite usable, and in fact you can also set up parallel mode with it's help. The downside is that after a few weeks the SNMP card got stuck - obviously the watchdog circuit is missing. At first I thought that one of the cards was faulty, but after the second card experienced the same issue, I realized that it is "a feature".
 
36x PV module delivered: