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  1. Replies
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    Re: All in one off-grid heating solution?

    The Legionnaire's couldn't organise Canape in a Cafe', never mind a virus in a vessel.
  2. Replies
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    Re: All in one off-grid heating solution?

    You are smack bang in the middle of an expensive professionally designed system.

    The slightest mistakes and you are either going to be expensively over-engineered or left with a heap of T-Shirts...
  3. Replies
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    Re: New building - what geyser options

    The thing with heat pumps is their installation. They tend to mix cold and hot water when you draw off hot water. ITS have a patented control valve to stop that.
    ...
  4. Thread: Wind energy

    by Fluffy
    Replies
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    2,512

    Re: Wind energy

    Hi Bertus, I see you are at the "exciting" stage of your quest for turbine energy information. Been there, done that, got a few T-Shirts. Hell even have a Turbine.

    The moment I start seeing...
  5. Thread: Wind energy

    by Fluffy
    Replies
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    2,512

    Re: Wind energy

    NOT. >:D

    All of a sudden that simple shaft connected to an alternator becomes a shaft alternator gearbox combination.

    So it can be done, but it's not simple and it's not cheap or maintenance...
  6. Thread: Wind energy

    by Fluffy
    Replies
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    2,512

    Re: Wind energy

    There we go --- just what I was, err warning against.

    It doesn't actually work or exist.

    Be aware, or maybe beware.

    Promise, I have researched these things for tons of hours. Literally....
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    Re: New building - what geyser options

    Dear Sir, please don't take this badly or personally.

    I am sorry but try as I may I just cant read or absorb that.

    Sorry, genuinely sorry, maybe I am just doff..,,,,
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    Re: Lithium 12Ah on a gate motor

    Me too, sad isn't it. ;D
  9. Thread: Wind energy

    by Fluffy
    Replies
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    2,512

    Re: Wind energy

    The problem is the RPM's. You cant drive the alternator directly off the turbine shaft. Even if modified for permanent magnet.

    Somehow you have to get the alternator into the several thousand RPM...
  10. Thread: Wind energy

    by Fluffy
    Replies
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    2,512

    Re: Wind energy

    Yep, and how big are the turbines. These are mostly your typical 200W to 500W.
  11. Thread: Wind energy

    by Fluffy
    Replies
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    2,512

    Re: Wind energy

    Shaded horticulture.
  12. Thread: Wind energy

    by Fluffy
    Replies
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    2,512

    Re: Wind energy

    Those are called VAWT and they don't work. I researched them for MONTHS. Well technically they actually do work - but not quite as well as advertised.

    They are however one of the easiest DIY...
  13. Thread: Wind energy

    by Fluffy
    Replies
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    2,512

    Re: Wind energy

    Probably many similar uses.
  14. Thread: Wind energy

    by Fluffy
    Replies
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    2,512

    Re: Wind energy

    I think, if ever tested in court the green option will trump the aesthetics option.

    It's coming.
  15. Thread: Wind energy

    by Fluffy
    Replies
    62
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    2,512

    Re: Wind energy

    Minced LBJ's
  16. Thread: Wind energy

    by Fluffy
    Replies
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    2,512

    Re: Wind energy

    I have nothing to gain or lose from this discussion except to share my knowledge and experience and help people.

    Be very aware of specifications and prices of wind turbines, especially from...
  17. Thread: Wind energy

    by Fluffy
    Replies
    62
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    2,512

    Re: Wind energy

    Fixed but it doesn't change anything.

    A 3kW 7 meter swept area turbine on a 12 meter mast is an expensive monstrosity of immense civil, mechanical and electrical complexity.

    Not a R20K...
  18. Thread: Wind energy

    by Fluffy
    Replies
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    2,512

    Re: Wind energy

    No 3kW.

    Here is an example.

    https://www.sustainable.co.za/regen-lx-3kw-48v-5-blade-wind-turbine.html

    Any idea how big a swept area of 7 meters is ??

    Oh and it cost a R100K without all the...
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    Re: Mustek LifePO4 battery

    No problems - the market is flooded with 600W bluetooth speakers that are at best 5W.

    In fact I have a good quality 10W Guitar amplifier that will sound louder than a 10,000W ALiExpress special.
    ...
  20. Thread: Wind energy

    by Fluffy
    Replies
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    2,512

    Re: Wind energy

    There is a problem here somewhere.

    A 3kW wind turbine would be the size of a tennis court and cost a mint.
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    Re: Impressed with China Pure Sine Wave Inverter

    Without a shadow of a doubt I would rather get this.

    https://mhn.co.za/shop/mecer-mks-1-5kva-1-2kw-off-grid-500wmppt-12v/

    It's an absolute no brainer. In performance, reliability, local...
  22. Replies
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    Re: Mustek LifePO4 battery

    I have never seen a 9000w inverter.

    Current would be in the 1000A window.

    In fact, at 12 V it would be impossible to achieve with commercially available equipment.
  23. Replies
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    Poll: Re: New GWM P Series or Used Hilux?

    For what it is worth.

    Spent the day with my daughter and family.

    They run an electrical business, pretty high end, not your typical boy and bakkie.

    So he changed and invested in the new P...
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    Re: Custom rip-stop bags made to order.

    Not sure I would be happy with anybody else doing my seat cover for me.

    10-4 Good Buddy.
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    Re: Catch of the day- please post

    Some things are just special. Me and my grandson last Friday arvie.
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    Re: Rct-infinisolar v4 5.6k-48v

    That would be a rather strange thing to do. Just pair two 5 Kva's
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    Re: Rct-infinisolar v4 5.6k-48v

    TAIWAN ;D

    Weather or not that is CHINA is rather a contentious issue at the moment. >:D

    The problem with Infini is that it is a kinda Grid-Tie WannaBee. It is but it isnt.
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    Re: New building - what geyser options

    Law as I understand it - 50% of the energy used must not be due resistance element heating.

    So a conventional geyser as part of a Solar System, or a Heat Pump is fine. Electricity only is not.
    ...
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    Re: New building - what geyser options

    As far as I can see nobody has addressed the need for an “energy saving “ geyser.
    If your municipality is like ours, this is a legal requirement.

    So a simple electric geyser is out of the...
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    Re: Cooling of solar panels.

    Whilst I agree that for most systems (especially domestic) adding a few more panels is more cost effective than solar tracking, I am somewhat skeptical of your cleaning schedule.

    It just is not...
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    Re: Budget LED torches

    Without the reflector?

    What is it when focused into a beam.
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    Re: Testing a dual battery system

    The mind boggles..

    How can a fitment centre not have a DC Clamp meter.

    Even worse, one of the Solar PV installers in my area doesn’t have one either.

    That’s like a Chef without a knife.
  33. Thread: Drones for kids

    by Fluffy
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    Re: Drones for kids

    8 year old's don't hint, the whine and pester and whine, till they get.

    Then they are incredible fun - till they break, then the rugby ball is fun again.
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    Re: Solar geyser and TV/WiFi

    Here is the thing. That's not the question. He wants to power the geyser and his home electronics during load shedding.
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    Re: Solar geyser and TV/WiFi

    Solar Panel/s, Charge controller, Inverter, battery/ies.

    Once you start thinking of doing this you have opened Pandora's box.

    What do you mean by Solar Geyser.
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