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Showing content with the highest reputation on 02/08/2021 in all areas

  1. ebrsa

    ICC alternative

    It seems there is a lot of confusion about the ICC-Pi Software suppliers. Since I have been using it since it was a Windows only app and had contact with the two developers, Jaco and Manie, I hope some background will clarify the issue. The original Windows app was donationware. After some time the RPi app became the standard only app available. At some point Jaco and Manie parted company and since then Manie continued to supply and develop the ICC-PI app. At a later date Centurion Solar became a reseller of the ICC-PI app. Some time ago Manie and Centurion Solar also severed their relationship and Centurion now supply their own app, whatever the origin or code base may be. So the two current suppliers are ICCSoftware which is Manie's enterprise and Centurion Solar which supplies a similar app. The two websites are named after the suppliers and relevant information about their products and prices are available on each. I hope this clarifies matters.
    2 points
  2. Correct. But I would just leave everything at 40% and prioritise load. Basically if your loads are 2kw and pv is producing 3kw, with your settings, it will send all the pv of 3kw to the batteries and pull 2kw from the grid for the loads. When you prioritise load it takes 2kw from the pv to supply the loads and sends the excess to the battery thus not taking anything from Eskom. BTW that is old software. The system mode on the new software is split over two screens and with start and end times.
    1 point
  3. There is a big difference between them. The one is mono crystalline panel and the other a poly crystalline. Due to the they have different operating voltages and current.
    1 point
  4. I have a Sunsynk 8kw, currently have 24 x 455W JA Solar Mono panels installed in 2 x Strings in a 6S2P config. VOC 53.47v and 10.56 Short Circuit Amps Is an East/West configuration and I am getting +-40kw/hr a day and hitting a peak of 7.06kw today and averaging about 6.2kw during the day. Looking at my last 30 days of data My maximum voltage is currently hitting 288V & Amps 17.3A on the West String (So no clipping of any Amps at the moment) I am planning to add another 4 panels onto my West String and another 2 onto my East String (not enough roof space left! This should give me an extra +- 20% power according to my calculations which should be about 50kw/hr a day in winter, not sure what it will hit in summer as I only installed at the end of summer this year. Good luck, look forward to seeing your data, would definitely be hesitant to go to close the the voltage limit
    1 point
  5. I specifically asked Keith ( Sunsynk ceo ) regarding the hard Voc , according to him the mppt could tolerate a maximum of 520 volts and shut down at 550 ( not sure what shut down means ), I was going to use 10 panels for a total Voc of 468 volts, but then decided not to take a chance. As Achmat said, you are better off with running with a bit of clipping than taking a chance with a high Voc and from what I know, doesn’t Four Ways have very cold winters
    1 point
  6. From my understand the Voc is a hard limit. The CEO has started in one of his videos that it can actually go to 550v but they spec it to 500v. The inverter also cannot clip the Voc and potentially could burn out if you exceed this limit. Clipping 1A to 2A should also not be to much of a waste on a 10 x 540w string. My panels are rated 9.28 and only every saw this in ideal conditions in the middle of the day in summer. Amps increase with solar irradiation so it starts off low as the sun rises and peaks at midday and then decreases as the sun sets so the clipping would potentially only last for an hour in the middle of the day in summer. Winter having higher rated amps is better. This is my one string with 9.28 rated panels only getting as high as 5.3A on a clear day in Cape Town. Voltage however does not have the same curve as amps. If I had 13A panels instead, I would have only gotten about 8A out of them so I could get more out of higher amp panels in winter and lost a bit in summer, which is actually better as I do not get enough pv generation in winter.
    1 point
  7. Hi Powerforum Group, Herewith a short video of the new RIOT features coming in the next week. Remote Axpert control through the cloud. More features will be deployed soon. Next will be Sunsynk monitoring and control dashboard.
    1 point
  8. My 5kW Deye also did this before I connected the batteries. It seems the CT coil readings and monitoring of the grid actually requires the DC bus to be powered by either PV or battery. It still updated fine to Solarman via Wifi, but the there were no grid readings when the DC LED was off. I think this is normal - or at least in the current firmware it is normal.
    1 point
  9. So I am ready to take the next step in my off-grid/on-grid solar adventure. You can view my 1st post here Now to start measuring all this eskom power solar battery stuff. I started by looking at all the inverters and the monitoring software they come with. Mixed results on that, some work ok, some are total crap. Solution - D.I.Y. seems to be the way to go on this too. I have looked at some of the forum posts here and also again a load of youtube videos and power forums. My conclusion is that it is 100% better to D.I.Y. and I have settled on the software, hardware etc on doing this. My first setup is now completed and I can start measuring power consumption from various sensors and get a visual representation of the cost of power from eskom. For now I have started off just measuring eskom main power usage, will be expanding this out from here to start measuring individual circuits and then start bringing my solar production and battery measurements into the mix. Currently the stats above come from the following hardware. 1- Raspberry Pi4 4gig as the main influxdb and grafana server. 2 - Pi Zero W at the main eskom db to do usage measurements 3 - RPIZ_CT3V1 - voltage and current sensor board (attached to pi zero W) This initial setup will be further expanded to add sensors to all the main home circuits individually (Lights, plugs, geyser, stove etc) Extra hardware will be an expanded ac current sensor that can accommodate all the circuits and the extra sensor hardware to measure the solar and battery side. To date all this has cost less that the retail equivalents out there (sonoff effergy eyedro vue etc)and I have more precise control over exactly what and how I can measure everything. And of course I can visualize everything exactly how I like using grafana. If you have any tips or suggestions then do let me know and share your sensoring/monitoring experiences with the community so we can all learn from each other
    1 point
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