giorgos

it makes perfect sense to connect each array to different MPPT, the 2 arrays don't have to be at the same voltage

Beat, read this tech note regarding cable lengths and importance of using the same thickness cable for all the batteries

If the inverters are set correctly, they can't affect much the solar generation. Victron has proven reliability with excellent back up service, Sunsynk however has a better "round trip efficiency ". Both are highly recommended for home installations in SA

https://www.scamadviser.com/check-website/gwstore.co.za

Hi guys, those of us that have invested in a solar system and are located near Cape Town, we are will get a shock when we see the new rates that are designed to punish us. The less electricity you buy, the higher the increase will be. Go the the https://web1.capetown.gov.za/web1/rtcalc/ and see how the new rates will affect you. The less electricity you buy, the higher the increase will be. mine will be 20,84% higher for the same services, I find these proposed increases to be criminal. They are mafia style extortion fees. We have until tomorrow, 2 May to object, send your email to [email protected]

the blue power of Victron, reliable inverters that would most probably last for a life time

this one used to run backwards but unfortunately it was replaced with a prepaid one WhatsApp Video 2023-09-19 at 22.14.23.mp4

If the PV panels have 25 years warranty, then all fittings, brackets and cabling must have at least 25 years warranty as well. I have seen a couple of DIY solar panel installations on cheap aluminum brackets that will not even last 10 years. Let this incident be a warning to all people who want to install solar on their roof and make sure that they use professional & certified solar installers

A Victron inverter will cope much better than a Deye/Sunsync inverter

That is correct, the 6 x E & 6 x W arrangement will work fine, the panels will start producing earlier and stay on longer than the true N orientation. Winter time is not the best time to monitor their performance.

Done

Having a generator to charge your batteries during the cloudy days via the inverter it means that you can be off grid for good

it happened when the loadshedding starts and the victron takes over. My solar installation is 3 years old, never had the EL trip before so clearly it was due to the surge protected plug that I used

I got the same problem after replacing the common 16Amp plug of my fridge with a surge protected plug ( by Zak speed). I have a professional solar installation with Victron mulriplus inverter and every time the loadshedding starts and while the Victron takes over the earth leakage trips. If I try to simulate the problem by switching off the mains manually, the EL will not trip. So I removed the surge protected plug for now while looking for either another make ( perhaps Ellies) or another solution to protect the fridge.

lithium batteries @ 50% discount with free delivery ??? It sounds too good to be true ! ! !

more info on this pdf, https://www.victronenergy.com/upload/documents/Wiring-Unlimited-EN.pdf page 19

Derek, pay attention to the length of the cables to the batteries

a very good video to watch on sunsync

here is an example of a professional installation, hope it can help you

My victron settings for the 7,4 kwh solarMD battery are Absorption voltage 54.6 V Float voltage 53.4 V Equalization voltage 54.6 V above values as recommended by SolarMD by the way the solarMD batteries do not require balancing.

Be careful of exporting power back to the grid as most prepaid meters will count the export units as units used by the house, so you will be billed for the kwh that you export

I have access to data of 3 victron installations ( 1-2 yr old) and I downloaded the following report from the Victron portal for the month of May. What surprised me was the figures of the round trip efficiency. Has anybody done similar calculations for different type of inverters ?

unfortunately if you paint the panels it will affect the manufacturer's warranty

Looking to install a domestic solar system, 8kw Sunsync with 14,2 kw solar MD battery and 12 PV panels. The house is in security estate and one of their rules is that the frame of the solar panels must be dark gray, preferably matt black and not the standard aluminum colour. We were quoted on the Axitec black premium XL HC 360watt, made in Germany but would prefer a higher wattage panels. Can anybody help with recommendations ? Cape Town installation thank you