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Kalahari Meerkat

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Kalahari Meerkat last won the day on May 8

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  1. You mean lack of data, don't you? Here for the lecture of common sense 101... If a company doesn't have any address details on their website, nor any fixed line telephone numbers, it probably is a dodgy outfit. (Don't wanna be found after fleecing the mark) If a company doesn't have *ANY* details other than Gauteng in their domain registration, no email address, no nothing, but REDACTED... time to smell a rat... if it was a private person's domain, maybe you don't want your personal details, quite so accessible, but if it is a Company, then the telephone number, email address and physical or postal address should appear in your domain registration details. There are no privacy concerns/implications for a company, except if its a dodgy company... /end of common sense 101 lecture... You are welcome to attempt to enlighten/edumacate me, if you feel my above ideas are wrong, until someone comes up with something that convinces me that a company has a valid reason to hide and not even publish their address, I believe this outfit is most likely one outfit to be avoided... as for the near past, since the domain has only existed since February this year, it certainly would only be the very near past (6 months, in fact) that someone might have had interaction with them.
  2. When everything is REDACTED... I think the only reason you may not smell anything is the Crony Virus, maybe? [email protected]:~# whois solarpower21stcentury.co.za Domain Name: solarpower21stcentury.co.za Registry Domain ID: DOM_3OV2G-CO.ZA Registrar WHOIS Server: Registrar URL: www.registerdomain.co.za Updated Date: 2021-02-05T18:20:31Z Creation Date: 2021-02-05T18:19:45Z Registry Expiry Date: 2022-02-05T18:19:45Z Registrar Registration Expiration Date: 2022-02-05T18:19:45Z Registrar: Register Domain SA Registrar Abuse Contact Email: [email protected] Registrar Abuse Contact Phone: +27.212001480 Reseller: Domain Status: ok https://icann.org/epp#ok Registry Registrant ID: REDACTED Registrant Name: REDACTED Registrant Organization: Registrant Street: REDACTED Registrant City: REDACTED Registrant State/Province: Gauteng Registrant Postal Code: REDACTED Registrant Country: ZA Registrant Phone: REDACTED Registrant Phone Ext: REDACTED Registrant Fax: REDACTED Registrant Fax Ext: REDACTED Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin or Tech contacts of the domain name. Registry Admin ID: REDACTED Admin Name: REDACTED Admin Organization: REDACTED Admin Street: REDACTED Admin City: REDACTED Admin State/Province: REDACTED Admin Postal Code: REDACTED Admin Country: REDACTED Admin Phone: REDACTED Admin Phone Ext: REDACTED Admin Fax: REDACTED Admin Fax Ext: REDACTED Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin or Tech contacts of the domain name. Registry Tech ID: REDACTED Tech Name: REDACTED Tech Organization: REDACTED Tech Street: REDACTED Tech City: REDACTED Tech State/Province: REDACTED Tech Postal Code: REDACTED Tech Country: REDACTED Tech Phone: REDACTED Tech Phone Ext: REDACTED Tech Fax: REDACTED Tech Fax Ext: REDACTED Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin or Tech contacts of the domain name. Registry Billing ID: REDACTED Billing Name: REDACTED Billing Organization: REDACTED Billing Street: REDACTED Billing City: REDACTED Billing State/Province: REDACTED Billing Postal Code: REDACTED Billing Country: REDACTED Billing Phone: REDACTED Billing Phone Ext: REDACTED Billing Fax: REDACTED Billing Fax Ext: REDACTED Billing Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin or Tech contacts of the domain name. Name Server: ns3.registerdomain.co.za Name Server: ns4.registerdomain.co.za DNSSEC: unsigned ZACR Complaint/s Procedure and Form: https://registry.net.za/content.php?gen=1&contentid=226 >>> Last update of WHOIS database: 2021-08-26T11:40:36Z <<< For more information on Whois status codes, please visit https://icann.org/epp # # The use of this Whois facility is subject to the following terms and # conditions. https://registry.net.za/whois_terms # Copyright (c) ZACR 1995-2021
  3. In an announcement Wednesday, Scottish engineering firm Orbital Marine Power explained how its 2 megawatt O2 turbine had been anchored in a body of water called the Fall of Warness, with a subsea cable linking it to a local electricity network on land. It's expected that the turbine, which is 74 meters long, will "operate in the waters off Orkney for the next 15 years," the company said, and have "the capacity to meet the annual electricity demand of around 2,000 UK homes."
  4. funny thing, that, they cut us off last June & I scrambled to put in the solar end + an extension lead to the neighbour (150m worth of cable...) We used to pay R 3k5 to R 4k a month, now, nada... actually still paying them off what I owe them at R 100.00 per month, maybe another 12 months and we should be square, since they want to stuff around, for the most part, I am supplying the neighbour a lot more than what we're consuming, only the last 3 weeks or so, has this turned around by us consuming, maybe from 0 to 5kW per day more than we're feeding back to the neighbour... that should turn around again latest by mid August, I'd imagine when the neighbour will get anything from 5 to 10kW fed from our end, more than we'd consume from his end. Keimoes is on the western side, we're on the other side, closer to Grootdrink, half way, approximately between Groblershoop and Upington, so up-river from your perspective. As for rain, let's see, if my thinking is correct, the rains come with the start of the solar cycle '09-10 was fairly wet, '10-11 was 500mm+ rain here and '11-12 also well above normal, normal here is supposed to be around 160 to 180mm for the rainy season. Last rainy season we had 270mm here, above normal and the beginning of the new solar cycle (you know, sunspots & better shortwave radio propagation, possibly...). 2 or 3 seasons ago, bottom of the solar cycle (mostly 0 sunspots) we had 38mm rain for the season! I do expect the upcoming rainy season to be better than the last, maybe not 500mm, but possibly approaching it, lets see, we're only here since end of '08, so I don't have enough historical data. A solar cycle is around 11 years times 2, every 11 years you get somewhat of a peak, the polarisation of the sunspots inverts, indicating the start of a new cycle, hence the 2 times 11 years app. since the 2nd time around the polarisation is back to the starting polarisation.
  5. My HDMI switch is just video, but apparently there are KVM switches that do HDMI & USB, then you'd only need one HDMI to VGA converter on the output of the KVM to your monitor, I'd imagine...
  6. @Bobster, should have quoted you... Don't have a KVM switch, but with a HDMI switch (3 sources, one display) the PI4 also didn't work correctly, get rid of switch, all good... but this is also a HDMI/mDP/DP display, I'm guessing with the VGA, there isn't enough feedback to the PI4 to enable it to select the right video mode, from the switch, there is a possible hard setting you can force in the /boot/config.txt
  7. Ok, a "Swamp cooler", humidifies the house and cools things down a bit... but hey, this last rainy season here in the valley, we had fairly high humidity at times and upcoming season I expect record rains for the Kalahari and Namibia/Botswana, whether that will comes to pass, we shall see, but if it does, the Swamp cooler will probably not do too much good at times, since the baseline humidity will be likely higher than normal by a healthy margin. Are you upriver or downriver from Upt and which side of the river? Here at onder Gariep with just shy of 5kW's worth of panels, we run the dishwasher during the day, cook with gas, but during the day will also run an induction cooker during daylight, at times etc. no batteries to speak of as yet and if no large-ish consumers are running, the load is also from 300W to 700W. Hot water is by way of evacuated glass tube hot water cylinder. As for AC, don't have, might consider it in the future, but since we're here and surviving the climate since the end of 2008, we've sort of climatised and what the old farmers used to do, is drag the bed out to the porch at the end of November and leave it there until sometime in March next year... best air conditioning to be had, ok, Scorpions, Geel-slang etc. all something to keep in mind, but hey, you're closer to nature and not running up any sort of bill for air conditioning...
  8. Care to give me/us some details on your evaporative cooler? What make? How large? What's the claimed/specced cooling capacity and what water are you using? (Kanaal water? would require some serious filtering etc.) and finally... What is the power consumption of this cooler? (and I suppose does it cool the whole house or only your bedroom?)
  9. Not sure what exactly you are asking, but if I understand the question, you are worried about the EM fields surrounding the wind turbines in the north sea, you are so far away from them, that you need not worry, but maybe worry slightly whenever you drive underneath some high tension lines, these, being a lot closer and more than likely carrying more power are likely more of a potential problem... just a thought, but I'm guessing I misunderstood your question. In a motor/alternator, I'd think the EM field is fairly well contained, more so than in a transmission line, I'd guess. Now if you'd care to visit your local steel smelter, you know, *LARGE* induction heater & all, you can really go to town on a serious EM field and have your analog watch kiss the world goodbye...
  10. Don't know the unit, but if its anything like this unit, then the specs on the MPPT end would require rewiring for Voltage, rather than Current, methinks... Max PV Array VOC: 500V DC MPPT Range @ Operating Voltage: 90 ~ 450V DC
  11. I guess that includes me... yes, if Voc is, lets call it 50V/panel and 7 in series, your Voc at around 350V would be well within specs for the MPPT input of your inverter, in fact you could do 9 panels in series, 450V and that should be ok, with a few Volts to spare, maybe go for 8 in series times 2 seperate strings into your inverter, this keeps the current per string lower and thus the cabling sizes a bit more in check. But your setup should also be ok, as for this would be on the battery end and not on the MPPT input side... and as for nope, you'd need to see Vmp in reality, bu that should be close to 3185W/10.92A (assuming that's Imp as in Amps at max power), then the end result should 7 panels worth of Voltage... thus 3185/10.92=291.667V and this divide by the 7 panels is 291.667/7=41.667V app. per panel at maximum power...
  12. Ok, you are further north than I am, if Centurion is accurate, here we are @95degrees and 50km, from Upington. Are your tubes in shadow for part of the day? This time of year you guys shouldn't have too many clouds and being further north than what I am, I would think you should be able to get a more than comfortable temperature out of the setup, assuming trees don't spoil the suns path to the tubes... mine is actually facing between 15 and 20 degrees real, thus somewhat east of due north. We can not expect to still have warm water on the morning, at 1.2degC this morning, I would have been surprised, but as it is not even ice cubes came out of the pipes this morning here.
  13. What exactly is this? We have a 100 or 150 liter (not 100% sure of the size) cylinder with 12 glass evacuated tubes attached for water heating, at this time of year, I can get a hot shower, at times, even need to add some cold water, in summer, it is way too hot (needs an afdakkie), but, this is off gravity fed, low pressure water system, no municipal water and water is fed from a 1000 liter Jojo tank on a 6 or 7m stand... (water cylinder says Afropulse 483 on the side...)
  14. The Voltage is the relevant one here, as long as the Voltage of the panels stay within the limits of the inverter, all should be fine, since the inverter will limit the current drawn.
  15. RS485 is supposed to be able to run for *LARGE* distances, so I'd suggest, run a single twisted pair of RS485 to the adapter at the computer....
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