Zapnologics

Any update on this topic in 2022?

Surely there haver been some changes to legistration around this? its just madness.

More confirmation of what other users have said, winter lowest daily PV but less rain vs Summer high daily PV but more clouds and rain.  Axis on left daily PV.  The daily production very different between seasons but monthly production about the same. My installed capacity = 6.2kW

Your system is showing pretty much the same performance as mine is currently. And mine is down because of winter. I have 6x 455w panels and am peaking at 1900w. In March i was still easuly hitting 2400w at peak. Only difference in my case is the season. So looks ok to me 

So I looked at your wiring. Do you have any blocking diodes on the strings (the MC4 connector type) as I do not see any in your combiner box?  (Not to be confused with bypass diodes which is built into the solar panels)
Once a string is shaded it will become a load and your energy will be lost with reverse currents. If you do not have shadows for most of the day then a blocking diode itself will be a waste of power as it has a slight voltage drop and will lose some energy to heat ( 0.7V * 10A... so about 7W ). So at the times the strings are shaded then blocking diode on each string might improve your performance. Depending on your situation this might be worth investigating

These figures are very close to my MAX production (1 day of the month) by month for a JHB, N facing panels at 22 Degrees, 6kW PV installed.
My average for June over the last 2 years is 21kWhr, which is the lowest of the year...
With all the rain we've had in JHB this summer the stats are not in line with 2019/20/21.

@FixAMess
Last year July gave the lowest for the year and in 2020 June was the lowest. It can vary quite a lot year to year in all 12 months

Good day,
I have had some additional plugs installed at my house by a contractor.  I am mildly unimpressed with the quality of work.   Being rather handy my self i'm happy that the work however messy and rushed, shouldn't burn my house down. 
However I am not familiar with the legislation and laws around passing electrical compliance. Hence the reason for the contractor.
 
I have several concerns with their install.
1: are joins in the roof allowed? If so can you just twist them with some electrical tape? Or does one have to use a chocolate block in some sort of box or enclosure.
2: Can you run single strand cables in the roof without conduit? I think you can with twin flex.
3: Does color coding of the wires matter? They have used blue as earth on the plugs instead of green? 
 

Public awareness ... trying to keep it as simple as possible. 
Lets say I want to install  a socket outlet at my house ... so a simple domestic installation connected to single phase power. 
I would contact an electrical contractor.
What would I check.
The contractor is registered with the DOL ... for an electrical contractor to register with the DOL ... there is a list of requirements which include the registered persons details and qualifications.
Do they have to be registered with the ECB or ECA ... the simple answer ... no.
The contractor is covered by public liability insurance and a few other things but we wont go into so much detail today. 
What would be the  "minimum" requirement of the person who would sign the COC ... a single phase tester ... can an installation electrician or master electrician sign the COC ... yes ... but it would be like getting a specialist to do the job of a GP.
Once the contractor arrives on site ... each team member has a level of competence ... which should be displayed on their identity card.
For example
The labourer would carry the equipment ...
The elconop can install the wiring to a point ...
The electrician would isolate the power and fit the lockouts with the labels indicating his contact details if the plug is connected to an existing circuit. 
Once the socket and wiring is installed ... the wires will be connected by the competent person ... once the installation is complete and connected  ... if the electrician on site is a qualified single phase tester they could carry out the insulation resistance tests on the wiring before connecting  ... then they will carry out the rest of the tests ... complete the "supplementary" COC and hand the original document (not a copy) to the person responsible for the electrical installation on that property .. which must be attached to the "initial" COC.
If you dont have an "initial" COC ... then it gets complicated ... so lets leave that for today. 

As far as I understand the legislation, all joints have to be enclosed in a firmly attached junction box. And you cannot use non-standard colours, unless clearly marked. @isetech is an electrician, so maybe he can confirm for sure. 

Good day,
I have had some additional plugs installed at my house by a contractor.  I am mildly unimpressed with the quality of work.   Being rather handy my self i'm happy that the work however messy and rushed, shouldn't burn my house down. 
However I am not familiar with the legislation and laws around passing electrical compliance. Hence the reason for the contractor.
 
I have several concerns with their install.
1: are joins in the roof allowed? If so can you just twist them with some electrical tape? Or does one have to use a chocolate block in some sort of box or enclosure.
2: Can you run single strand cables in the roof without conduit? I think you can with twin flex.
3: Does color coding of the wires matter? They have used blue as earth on the plugs instead of green?