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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2277697 Views)
UPS Back-up, Also A Complement To FTA / FTA Frequency / Cctv Installation A Complement To Fta And Solar Energy (2) (3) (4)
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Re: Solar Energy, A Complement To FTA by limpopo: 2:58pm On Aug 14, 2020 |
Valto:Thanks |
Re: Solar Energy, A Complement To FTA by JUO(m): 3:43pm On Aug 14, 2020 |
ceaser:only hdd on pvr takes about 15-25w. unless is ssd which am yet to see and will be costly than the entire pvr. the only way a decoder can consume 10-15w is when you have one LNB. each LNB consumes about 5-10w depending on the size. having multiple LNB means more consumption |
Re: Solar Energy, A Complement To FTA by JUO(m): 3:51pm On Aug 14, 2020 |
JUO:actual capacity is 112ah 080-987-337-09 1 Like
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Re: Solar Energy, A Complement To FTA by JUO(m): 3:53pm On Aug 14, 2020 |
JUO:080-987-337-09 |
Re: Solar Energy, A Complement To FTA by JUO(m): 3:53pm On Aug 14, 2020 |
JUO:080-987-337-09 |
Re: Solar Energy, A Complement To FTA by chris81964(m): 6:05pm On Aug 14, 2020 |
Time of use and cooking with solar power. I cook lunch an dinner on my solar. Now I run 2 AC to get max production. I intend to double my batteries and PV. Enjoy the video https://www.youtube.com/watch?v=pcxTDrOY9pQ 4 Likes |
Re: Solar Energy, A Complement To FTA by IYGEAL(m): 7:06pm On Aug 14, 2020 |
ojeysky: Progress report... ![]() So I hired someone to climb the roof to rearrange the panels. He connected two in parallel and two in series and the two arrangements in parallel. I was a bit confused. I thought he was supposed to connect 2 in series, the other two in series and the two arrangements in parallel; he said it's the same thing. Open circuit voltage of the panels are 18.0V. 8.3amps current. I have a multimeter and tested the connected panels (disconnected from CC) they read between 18 to 20V. When connected to the CC, it's showing between 15 to 17v; and this was in the afternoon when the sun was supposedly at peak. I think this may not be right. |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 7:07pm On Aug 14, 2020 |
chris81964: I love the "time of use" feature on the inverter, in my case I use solpiplog to schedule that for my inverter. What kind of cooker are you using that is consuming 1.2kw? Is it the typical ones as I think those consumes more than that? |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 7:13pm On Aug 14, 2020 |
IYGEAL: If that is the rating on each panel then after the 2s2p setup your multimeter should read above 30v (18x2) unless it's not sunny or you have significant shading |
Re: Solar Energy, A Complement To FTA by Valto(m): 7:21pm On Aug 14, 2020 |
IYGEAL:@ highlighted, very wrong connection. |
Re: Solar Energy, A Complement To FTA by Oshomo12(m): 7:59pm On Aug 14, 2020 |
IYGEAL: Na proper muR...N did that connection. Hope he wasn't high when he climbed the roof? 1 Like |
Re: Solar Energy, A Complement To FTA by chris81964(m): 8:33pm On Aug 14, 2020 |
ojeysky:I have an air fryer. It allows me to cook without oil (minimal) |
Re: Solar Energy, A Complement To FTA by IYGEAL(m): 9:52pm On Aug 14, 2020 |
ojeysky: That's what I thought too. I guess it's still using the voltage of just one of the panels. Please get me clarified on how this 2s2p arrangement is practically done. My suggestion was that the panels be divided in two, each of the groups be connected in series and then the series arrangements be connected in parallel... Is this correct? |
Re: Solar Energy, A Complement To FTA by IYGEAL(m): 9:52pm On Aug 14, 2020 |
Oshomo12: I don't think so ![]() |
Re: Solar Energy, A Complement To FTA by IYGEAL(m): 9:53pm On Aug 14, 2020 |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 10:13pm On Aug 14, 2020 |
IYGEAL: The attached picture is 4s2p that's to give you example of how the wiring should look like. 2 Likes
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Re: Solar Energy, A Complement To FTA by IYGEAL(m): 10:23pm On Aug 14, 2020 |
ojeysky: Okay. This is helpful. Thank you very much. ![]() |
Re: Solar Energy, A Complement To FTA by Oshomo12(m): 10:29pm On Aug 14, 2020 |
ojeysky: Good illustration! @IYGEAL, hope u get it? Hope the MC4 connectors are not chopped off already(i strongly doubt this) Paralleling should be done with a Y-connector. 1 Like |
Re: Solar Energy, A Complement To FTA by IYGEAL(m): 11:13pm On Aug 14, 2020 |
Oshomo12: The initial connection wasn't done with those. They were apparently thrown away. All 4 panels were bought 3 years ago and have been in use since. Today, on trying to rearrange, we found that some of the wires are having partial contact, then got them replaced with 6mm flexible wires. |
Re: Solar Energy, A Complement To FTA by tobintin(m): 1:22am On Aug 15, 2020 |
How many cycles is it rated at 80% DOD? actual capacity is 112ah 080-987-337-09[/quote] |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 4:55am On Aug 15, 2020 |
Sample of what a poor hervest day can look like, sun was not smiling at all ![]()
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Re: Solar Energy, A Complement To FTA by essegis(m): 5:43am On Aug 15, 2020 |
ojeysky: ![]() ![]() ![]() ![]() ![]() AE has made uncle change the meaning of "sun is not smiling". |
Re: Solar Energy, A Complement To FTA by ceaser: 7:37am On Aug 15, 2020 |
Leopantro: The BMS is still important. The most likely scenario where you may be spared a BMS in a Lithium set-up is in strictly 1s config, that is nominal of 3.2v like it's used in mobile phone power banks. The moment you are going 2s and more config, you will require a BMS cos the cells in the series connection get exposed to different charge and discharges over time and end up with as low as 0.2v differences in voltage. This is more pronounced at deep discharges where you may end up having as much as 1 volt differences between cells connected in series. At such huge voltage differences and without a BMS, the cells with lower voltage end up getting further undercharged and over-discharge with each cycle until they get bad and then pull down the good cells along with themselves. He may have gotten away with 7s config for that long because he does not deep discharge his pack or even discharge it so much, perhaps just a discharge of as low as 1v per discharge cycle. Indeed with a 100p pack, it is interesting to me. That being said, even with BMS installed, it is not advisable to make deep discharge of your Lithium pack a habit. The stock BMS has tiny resistors that short and work with MOFSETs to balance the batteries and at huge voltage differences of cells, the small resistors may be inadequate to balance. In such instances, you may even notice that your series cells when measured have differences as much as 1v. Taking them out and manually balancing them using big resistors or balancers may then be required. 1 Like |
Re: Solar Energy, A Complement To FTA by ceaser: 7:53am On Aug 15, 2020 |
ojeysky: The watercolour was necessary cos I once bumped on a picture I uploaded on NL used for something I didn't put up on Jiji. 1 Like 1 Share
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Re: Solar Energy, A Complement To FTA by ceaser: 8:09am On Aug 15, 2020 |
JUO: Thanks. There's no end to learning. |
Re: Solar Energy, A Complement To FTA by ceaser: 8:24am On Aug 15, 2020 |
chris81964: Nice job. @ 43 sec, you mentioned "the 1 horsepower inverter AC that is barely performing..." Was that a derogatory or complement for the inverter AC? Those batteries that are 100% full at around 1pm, what is the capacity? |
Re: Solar Energy, A Complement To FTA by ceaser: 8:30am On Aug 15, 2020 |
IYGEAL: Ha! Hope say you never even put am on top the system. IYGEAL: You thought right. He made wrong connection. Please let him correct it. And I hope MC4s are used. Edited: seen that responses have been given. |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 9:14am On Aug 15, 2020 |
chris81964: Superb inverter, made by China. China is vexing these days. Producing premium products at non premium price. The german or american version of this would cost a section of ones liver ![]() Wait for the day Niyiomolade would go fully chinese ![]() ![]() ![]() 1 Like |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 9:16am On Aug 15, 2020 |
ceaser: ![]() ![]() ![]() ![]() You yaff joined the watermark geng... Freezer wey anybody can walk into a shop and snap picture , this is a bit different from installation pics ![]() ![]() ![]() 1 Like |
Re: Solar Energy, A Complement To FTA by IYGEAL(m): 10:44am On Aug 15, 2020 |
ceaser: Thank you for your responses. Thanks to everyone that contributed, especially Chief Ojesky. 2s2p connection has been correctly done and the difference is so glaringly massive. No MC4s were used. The connectors were originally chopped off. I hope this one serves for the time being as going up the almost vertical high roofs is quite difficult. Cheers ![]() 3 Likes |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 11:03am On Aug 15, 2020 |
IYGEAL: happy ending!!. i usually say it that most installers dont understand the physics behind what they are doing, hence NA SO WE DEY DO AM IS THEIR MOTTO.. they dont understand difference btw mppt and pwm cc, an dont bother reading manual as well..hence they treat and connect every CC as pwm.. ignorance aint bliss, as the homeowner pays the price of his and their ignorance!! 2 Likes |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 12:44pm On Aug 15, 2020 |
who is using the UKA rechargeable fan? bought it for my people some moons ago, now the switch has developed issues. how were you able to repair the switch?. youtube is just showing how to replace the faulty switch |
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