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  1. Replies
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    Re: Not grid tied, solar when the sun shines

    Those 4x100Ah seems OK when there is enough PV and only used for starting. My time in hours is based on the days with no sun and OP wants to work even when no grid is available. One would not want to...
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    Re: Not grid tied, solar when the sun shines

    How many hours will the pump run per day?

    That will sort out what size and type of battery.
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    Re: Emergency Car Jump Starter Tool Advice

    No this is a common mistake. The capacity refers to the combined value of the cells used and not the secondary side of12V
    Thus the capacity at 3.7 or 3.2V
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    Re: House to run ob solar when sun shines

    Thanks. The date at the bottom fooled me.
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    Re: House to run ob solar when sun shines

    Ezee rider I think your system with panels as installed is doing great. Getting 4kwh/kw installed for this time of the year is good going. At least you know now the option of exporting without trips...
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    Discovery 2: Re: D2 Battery drained

    Is the 1st test not to find if it goes through the AUX fuse before trying to find which gadget?
    If it was through 2 fuses it means finding which one.
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    Discovery 2: Re: D2 Battery drained

    Why leave the aux fuse in place if it was draining? Better to have the aux without power than ABS if vehicle is used.
    Was the test to these fuses done with bonnet and all doors closed?

    I still...
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    Re: Impressed with China Pure Sine Wave Inverter

    Possibly. But I found a guy with a better than new warranty :p
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    Re: Impressed with China Pure Sine Wave Inverter

    Yes it should be on the half cycle. It could be on the high voltage DC side or AC output.
    Any of those 16 Mosfets could have popped.
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    Re: Impressed with China Pure Sine Wave Inverter

    The Changi is fixed for 120/240V and no setting.
    It is indicated it was 230V before and has dropped. It seems there is problem around the Mosfets. These high frequency units do seem to damage...
  11. Re: The Worlds Simplest Solar Sun Tracker - Really

    Glad to hear someone else also battled with op-amps. I have built a lot of gadgets using them as voltage comparator. Some worked well and other for different periods. Still trying to find how to...
  12. Re: The Worlds Simplest Solar Sun Tracker - Really

    Didn't those window winders already turn both directions?????
  13. Replies
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    Re: House to run ob solar when sun shines

    Myne is Nov 31jr oud. So ek kan bevestig dat ek oor die tydperk 1520kWh per maand gebruik het. Nou gebruik ek nooit meer as 300kWh nie.
    By ons het hulle volgens ons Raadslid begin met mense wat nie...
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    Re: House to run ob solar when sun shines

    Baie maklik. Dis 'n setting onder EPM.

    Op alle Solis modelle het jy 'n Backflow setting. As jy dit op zero stel dan moet dit export blok. Daarna kan jy enige syfer in Watts opstel.
    Ek moet nog...
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    CoCT Home user credit meter

    Can someone please explain how this meter works under the home user tariff ?
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    Re: House to run ob solar when sun shines

    Gelukkig dat Munics nie eers geld het om hul droom van Prepaid uit te rol nie so dit kan lank vat dat hul hier jou inverter wat export kan throttle.
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    Re: House to run ob solar when sun shines

    Interesting discussion. Some factual and some fiction. Some learning hopefully takes place between all of the comments.
    I have said before you can call a Solis a plug and play with 5 wires is not...
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    Re: House to run ob solar when sun shines

    All points accepted.
    High temps indicated by Nico is not true on all MPPTS.
    Also no higher loading(temp) and work for the grid tied because it has to export extra power generated but not used....
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    Re: House to run ob solar when sun shines

    This means the inverter, and MPPT's are constantly working when you have no/minimal loads to power.

    A proper inverter however will have a setting where you can limit what you feedback but then...
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    Re: Bushlapa Inverter

    Buy once and get at least a 1000W pure sine as you are then sorted if ever you want to run a house type bar fridge or medium house type fridge/freezer. Very few inverters below 1000W can start a...
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    Re: House to run ob solar when sun shines

    I think we are all interested in the rate for feeding into the grid. When I saw Eezi Rider running a heat pump and the pool pump for 8 hours a day I saw here is a good oppertunity to use grid tied as...
  22. Re: Fuel Containers on Camper vans and Camping Trailers?

    From what I gather approved fuel containers are now allowed. So this seems to be allowed. Selling on the black market :( :(
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    Grid tied fed from back up inverter

    https://youtu.be/fWuGiw6soj0

    It all seems fine using a connected load and small grid tied. But what about a big PV install and low load.

    Fluffy have you got any news to share on this as you...
  24. Re: The Worlds Simplest Solar Sun Tracker - Really

    Perhaps the actuators commonly used can be controlled very well. That is what the CSIR are using on their solar farm next to the N4.
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    Re: House to run ob solar when sun shines

    Nico may be you have more than 1 area to look at. If we refer to the figures you placed on another topic for a good and bad day. Due to your shade on the panels it is throttling what you can use....
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    Re: House to run ob solar when sun shines

    Do you have actual figures for your daily yield in kWh per day or months.

    It would be good to see the difference in kWh between summer and winter.
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    Re: Different Batteries

    Spot on. Provided you use a quality switch and not just a switch marked 20A+ but one that CAN handle the actual load which can be more than the 12A charger current but can handle the load when used...
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    Re: White deposit on negative terminal?

    Spot on.
    I find it every day when gate PCBs miss behave that clients test either with the charger connected and/or on no load. As soon as a load is applied the batteries tend to collapse.
    Normal...
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    Re: Different Batteries

    Nobody forces you to buy a new battery no matter what the test results are.
    While at home with time on your side disconnect just 1 lead to the one battery and charge one. After 2 days connect the...
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    Re: Keep warm kettles

    The majority view was that no power is saved by using timers to switch off the geyser. My actual measurement 3 times a day does show a saving. I also measured the Wh used and temp drop for a bath or...
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    Re: Keep warm kettles

    It seems we can agree on this one that to keep the temp up cost more. Now if we move to geysers working the same way we get the school that will not agree :)
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    Re: Misleading advertising

    So the banner says this is a 800W 12V solar panel. When you do look closer the top text indicates it is 2 x 400W.

    So you are expected to do the calculation to find out 18V x 5.55A = 100W

    Even...
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    Re: Ek is dom help my

    I would agree on the 30A. Communica also sell a MC2430 - 30A at about the same price. This will allow up to 400W on 12V.
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    Re: Ek is dom help my

    The key here will be the Imp current of each panel as well as the Voc and Vmp volts. There will be a max current to battery of 15A as indicated which the 160W panel can provide. Thus a 2nd controller...
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    Re: Wireless Geyser Controller

    I would use this probe and it goes into the existing jacket of the thermostat.
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