Yeah this guy explains the problem with vertical ones using the Tesup as an example. Was looking at Tesup when I saw his video. Their claims are not backed up by what the theoretical limits of science suggest.
Their setup at R10k seems magical:
Reality:
And:
One of my reservations, few years back neighbor close by had a turbine, small one, on the highest part of his roof.
Lekker storm, it was skew.
Weeks later fixed.
Another lekker storm, it hang off its mountings.
There is no more turbine there.
Hence the interest in the horizontal ones, till I got the prices.
My take: For like Ā±R7k for 500w, I will take a chance to get that with the wind.
For what they cost, nope. Panels are WAY cheaper, even though they donāt work so well the last couple of months. 
Ps. CoCT weather is changing back to what we knew 30 years back ā¦ hence my interest in turbines.
Ja-nee!
The thing about RE is that itās intermittent. And even so itās not predictably intermittent 
So you have to start off with the low hanging fruit. In SA this has got to be solar PV and then add batteries as the next step.
But then you need to think what is your fallback position from there. For me itās the grid. But depending on where you live there might be another string to your bow.
e.g. In northern California their sun is ok for summer months but not for winter. So micro hydro is a viable option if a stream is reasonably close since thatās when it rains.
The small wind turbine industry has collapsed in the US so bear this in mindā¦
My particular setup has space for 2 more panels and then Iām done.
My conclusions is this:
Thus wind is not an option in dense areas where the noise from a horizontal turbine might cause issues. I think it may be great and relatively good as add on where wind is present (and clouds are an issue), and there is no noise issues (see the ~$450 mentioned by heavy accent guy above). I would of course start with solar in SA.
Great value for money thenā¦ 
Marketing Managers for the win!!
Mike Thorn put one up in Ysterfontein a few years ago. Would be nice to see how it is going. 2kw I think.
I think he took it down. Although it has been a long time since I heard from him.
Here is a low noise horizontal solution about 1.1m high weighing 32kg. Price is about $1700 (per video) for the small one (may have come down). Outputs max 150W.
https://thearchimedes.com/products
Thatās 30k ZAR. Itās probably not completely crazy, considering what things cost these days, but for only 150W? For 500W I might consider itā¦ if I had enough wind, which is also an open question.
Agreed. Not worth it, but it seems to be reasonably honest in terms of power output and low noise. I.e. the numbers for this are realistic but the vertical devices seem to have fantasy numbers. Perhaps the price can fall over time as their volumes go up.
Iām āauditingā the power consumption of the 9.5 people again ā¦ low hanging fruit.
Geysers are my nemesis.
In this new addition, if the gas geyser works there, then I will be considering, when the other geysers pop, to replace the 3 electric geysers selectively so that people can shower as they want ā¦ as long as they pay the gas refills. 
Cause my data says the 5kva works very well if managed properly ā¦ until the weather decides to throw a tantrum.
Cause people are at work in the day ā¦ so cooking at night is inevitable, two of the areas are on gas already, others are induction plates.
Will see where this goes, but vertical wind turbine is off the table.
Case point - why the 5kva can do it.
Main geyser is being heated, some from the batt.
Cause I set the inverter, via NodeRED, at what the panels can do ā¦
ā¦ not exceeding 4.5kw
Summer I may get Overload Warnings ā¦ I put a fan on a timer under the equipment, helps a lot.
Try having a hair salon on the premises And customers are weird creatures, they love coming on Sundays (not Saturdays), or in the afternoons/evenings, and of course, the hair dresser provides the service since she needs the business. So quite frequently, I look at the SOC, I think this is excellent, the EV is about to come home, there is some surplus, we can charge the car. And then seconds later I need to heat water, the wife returns with the car and decides to start defrosting something in the microwave or turn on a heaterā¦ and the entire plan goes out the window.
Iāve learned to be content with an electric bill of around 2k, which buys all the cheap electricity under 600kWh
So, probably better to get some battery storage and panels rather than wind? 
