Rooftop Wind Turbines

Mike Hoxbig

Mike Hoxbig

Honorary Master
Joined
Apr 25, 2010
Messages
55,619
Reaction score
36,243
Location
Jhb
Has anybody investigated the feasibility of using these as a secondary power source for bad solar days, or even night time generation?

www.tesup.co.za

V7 Wind Turbine | TESUP ZA

The TESUP V7 comes with two distinct blade sets for different wind speeds. Blade sets for high wind (7 - 50 m/s) and moderate wind (4 - 25 m/s) are already included in the default option. The blade set for low wind speed (3 - 20 m/s) is optional and can be added by selecting the “V7 (7KW) + Low...
www.tesup.co.za www.tesup.co.za

www.tesup.co.za

MAGNUM 5 Wind Turbine | TESUP ZA

MAGNUM 5 is the World's most preferred horizontal wind turbine and can generate up to 5 kWh of electricity per hour.* It is designed and manufactured by TESUP, World's leading household wind turbine and flexible solar panel manufacturer. TESUP operates locally in 30 countries. Product...
www.tesup.co.za www.tesup.co.za

How would they work with an existing solar setup? Through the auxiliary connection on the inverter?
 
Very interested to hear about people's experiences with these things.

One thing of which we have a lot here in Cape Town (apart from sun and lovely mountains and sea) is wind...
 
Mike Hoxbig said:
Has anybody investigated the feasibility of using these as a secondary power source for bad solar days, or even night time generation?

www.tesup.co.za

V7 Wind Turbine | TESUP ZA

The TESUP V7 comes with two distinct blade sets for different wind speeds. Blade sets for high wind (7 - 50 m/s) and moderate wind (4 - 25 m/s) are already included in the default option. The blade set for low wind speed (3 - 20 m/s) is optional and can be added by selecting the “V7 (7KW) + Low...
www.tesup.co.za www.tesup.co.za

www.tesup.co.za

MAGNUM 5 Wind Turbine | TESUP ZA

MAGNUM 5 is the World's most preferred horizontal wind turbine and can generate up to 5 kWh of electricity per hour.* It is designed and manufactured by TESUP, World's leading household wind turbine and flexible solar panel manufacturer. TESUP operates locally in 30 countries. Product...
www.tesup.co.za www.tesup.co.za

How would they work with an existing solar setup? Through the auxiliary connection on the inverter?
Click to expand...
Not Tesup or any of their products.

There's a scathing review on powerforum of three product and non existent after sales service.

I'm looking at a vertical axis wind turbine to connect to the aux on my sunsynk. Just a small 2kw of 3kw turbine. Even at a Conservative average of 300w to 500w per hour it comes to an extra 7.2kwh to 12kwh per day which would be a big assist in winter.

Somerset has an abundance of wind, especially early evening and in winter. Normally if its cloudy here then there's a lot of wind.
 
AchmatK said:
Not Tesup or any of their products.

There's a scathing review on powerforum of three product and non existent after sales service.

I'm looking at a vertical axis wind turbine to connect to the aux on my sunsynk. Just a small 2kw of 3kw turbine. Even at a Conservative average of 300w to 500w per hour it comes to an extra 7.2kwh to 12kwh per day which would be a big assist in winter.

Somerset has an abundance of wind, especially early evening and in winter. Normally if its cloudy here then there's a lot of wind.
Click to expand...
Yeah not Tesup specifically, that's just to provide a rough idea.

In Jhb we also get decent wind when it rains. Obviously solar goes to hell, but that's where this comes in. Also at night, any bit of wind will help prolong battery discharge.

Like you I'm thinking of getting a small one to play around with and see how it works, before committing to something bigger...
 
Mike Hoxbig said:
Yeah not Tesup specifically, that's just to provide a rough idea.

In Jhb we also get decent wind when it rains. Obviously solar goes to hell, but that's where this comes in. Also at night, any but of wind will help prolong battery discharge.

Like you I'm thinking of getting a small one to play around with and see how it works, before committing to something bigger...
Click to expand...
I'm gona wait for you
 
Mike Hoxbig said:
Yeah not Tesup specifically, that's just to provide a rough idea.

In Jhb we also get decent wind when it rains. Obviously solar goes to hell, but that's where this comes in. Also at night, any bit of wind will help prolong battery discharge.

Like you I'm thinking of getting a small one to play around with and see how it works, before committing to something bigger...
Click to expand...
I got a quote from Alibaba in the week.

One with a tower and one without. Screenshot_20220425-190640_Acrobat%20for%20Samsung.jpgScreenshot_20220425-190619_Acrobat%20for%20Samsung.jpg
 
Mike Hoxbig said:
Yeah not Tesup specifically, that's just to provide a rough idea.

In Jhb we also get decent wind when it rains. Obviously solar goes to hell, but that's where this comes in. Also at night, any bit of wind will help prolong battery discharge.

Like you I'm thinking of getting a small one to play around with and see how it works, before committing to something bigger...
Click to expand...
Do it do it.

And then let us know how it all goes :)
 
My dilemma is that even on full sunny winter days my pv generation is less than my consumption. Mainly due to shorter winter days.

Adding more batteries will still not see me through without using the grid at some point. Adding more panels is an option but even at the max panel number it will not be enough to cover my daytime usage of 35kwh.

This is my batteries going to 10% SOC when the geyser kicks in at 5am.

A wind turbine adding a few hundred watts into the battery every hour will see me almost entirely off grid.

Domestic was in today so that's why there's an increase in consumption from 9am as she switches on the washing machine, dishwasher and then my well pump and water tank pump kicks in to supply water to the house. Screenshot_20220425-192429_SOLARMAN%20Smart.jpg
 
Consensus on small turbines is they're more trouble than they're worth in an urban setting.

On a larger plot with a few acres, that probably changes though, as you can put up a high enough tower.

I would totally love to be proved wrong though
 
itareanlnotani said:
Consensus on small turbines is they're more trouble than they're worth in an urban setting.

On a larger plot with a few acres, that probably changes though, as you can put up a high enough tower.

I would totally love to be proved wrong though
Click to expand...
What are the troubles in particular?
 
I have 4 small vertical WT installed at my house in Cape Town South Africa and I have to say they do make a difference. They only add about 20 to 25% of my total generation, but they do so 24/7 as long as the wind blows.
Think cost wise they are more expensive per kw than solar, but for me it was about convenience, as with most off grid set ups I suppose.
Also opted for the vertical over the horizontal as the vertical turbines should be easier on maintenance and they are better at adapting to the variable winds in built up areas.
Only issue I have had was 1 overspeed breakdown on 1 turbine when the Cape Doctor did a house call.
 
itareanlnotani said:
Consensus on small turbines is they're more trouble than they're worth in an urban setting.

On a larger plot with a few acres, that probably changes though, as you can put up a high enough tower.

I would totally love to be proved wrong though
Click to expand...
The horizontal ones definately, but a lot less so for the vertical ones.
The problem is the variable winds in built up areas that rapidly change direction because of the buildings and trees. The horizontal turbines struggle to adjust rapidly to these changing winds as the "prop" always needs to point into the wind in order to work. This results in the turbine rapidly needing to change direction which puts strain on the components. Vertical turbines don't have this problem.
 
WollieVerstege said:
I have 4 small vertical WT installed at my house in Cape Town South Africa and I have to say they do make a difference. They only add about 20 to 25% of my total generation, but they do so 24/7 as long as the wind blows.
Think cost wise they are more expensive per kw than solar, but for me it was about convenience, as with most off grid set ups I suppose.
Also opted for the vertical over the horizontal as the vertical turbines should be easier on maintenance and they are better at adapting to the variable winds in built up areas.
Only issue I have had was 1 overspeed breakdown on 1 turbine when the Cape Doctor did a house call.
Click to expand...
Who was your supplier and installer? Is the turbine's inverter plugged into the aux of your main inverter?
 
Mike Hoxbig said:
Who was your supplier and installer? Is the turbine's inverter plugged into the aux of your main inverter?
Click to expand...
Was a DIY job by a friend of mine, who is a RE engineer, 4 years ago. Turbines were imported directly from Switzerland. Was a real pain in the ass to fix the breakdown.
If I recall correctly, yes. WT plugged into the aux of the main inverter.
Setup was half the PV panels and 2 WTs in one inverter and the same on the other.
 
You must log in or register to reply here.
Back
Top
Sign up to the MyBroadband newsletter
X