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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2275332 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 bassdow: 2:26am On Oct 25, 2023 |
clevermugu: imagibe insulting a client, who already paid you money. That says a lot. People think say na until you know them one-On-One before you could learn their traits. Them no know say na little things like this dey tell us plenty things. come read dem body language join and you would know much more. 2 Likes |
Re: Solar Energy, A Complement To FTA by bassdow: 2:28am On Oct 25, 2023 |
brightk: see how much laughter you just gave me for FREE kai. |
Re: Solar Energy, A Complement To FTA by bassdow: 2:30am On Oct 25, 2023 |
clevermugu: Thanks |
Re: Solar Energy, A Complement To FTA by bassdow: 2:37am On Oct 25, 2023 |
Valto:Nothing left to say |
Re: Solar Energy, A Complement To FTA by bassdow: 2:39am On Oct 25, 2023 |
clevermugu:Just misMatched batteries alone nna real issue. let alone the funny things he said about having to go looking for spanner to adjust things so they stop doing shakyShaky... |
Re: Solar Energy, A Complement To FTA by bassdow: 2:44am On Oct 25, 2023 |
Valto: Would appreciate if you tell us how you arrived at this. that way, next time, he/She would have little reason asking such question. As for me, so long chargeController max rating exceeds total Voc of panel, I just series everything. That has added advantage of cooler cables |
Re: Solar Energy, A Complement To FTA by bassdow: 3:17am On Oct 25, 2023 |
FEGEITOK: this ya question sounds some how Oooo if I get you right, you want to know if 1 chargeControler could be connected to more than 1 set of batteries. I do this already with some of my arrays, I have 5 solar arrays by the way. but I wouldn't suggest doing this for a client. You have to setUp a switch (more like a changeOver) and it could be possible forgeting something. |
Re: Solar Energy, A Complement To FTA by bassdow: 3:20am On Oct 25, 2023 |
abbeymighty:why mixMatching a hybrid with a dedicated chargeController ? Why not choose either the inBuilt chargeController, or the externnal dedicated chargeController ? would suggest you kukuma just use the external dedicated chargeController, and ignore the inBuilt one. Most times, those inBuilt ones are of lower quality. |
Re: Solar Energy, A Complement To FTA by bassdow: 3:21am On Oct 25, 2023 |
sharks776: you want to add the new battery seperately, or pair it in series or parallel to existing battery bank ? |
Re: Solar Energy, A Complement To FTA by Justice629(m): 10:10am On Oct 25, 2023 |
@bassdow I gbadu your inputs here well well but as I no be keyboard warrior I say make I maintain for corner the look many of them do called solar pros here. Little piece of advice- when you ready to go lithium no make mistake of buying from naija vendors because must times na worst grade cells them dey buy from China, my own experience still the pepper me for body now. 1 Like |
Re: Solar Energy, A Complement To FTA by ZIKEYBOY11: 10:32am On Oct 25, 2023 |
Hello house, I need advice on this setup. I have a 5kva 48v Felicity hybrid inverter. 8 X 300W Solar panel. 4 X 12v 220ah battery. According to the inverter specs, the PV input voltage range is 90V - 550V. While the Maximum input current is 15A. My question is this, in what arrangements should the solar panels be ? All in series, or 4 series and 2 parallel? Or 2 series and 4 parallel? Also, whoever has used Felicity hybrid inverters, please confirm what type of in-built charge controllers they have ? Thank.
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Re: Solar Energy, A Complement To FTA by brightk(m): 10:46am On Oct 25, 2023 |
Justice629:na wa. If d vendor de offline or online postcam make everybody see. |
Re: Solar Energy, A Complement To FTA by brightk(m): 10:56am On Oct 25, 2023 |
bassdow: Make i chuk mouth 4 dis installation . Panels are 380w* 6 exulted eagle with Voc 67v and Isc 7a. Load is abt 900w to 1kw contnious. Batteries na lithium 24v 173ah. We plan to add extra 6. With all d six panels battery turns out @ predefined cut off of 24.5v. At abt 5 to 6pm in the evening. The problem now is mppt input current max is 15A. Going by 7*2*1.25(safety factor). Dat is 17.5A. Me n u kno say we nor go see 7A. Me i was suggesting 6s2p. Another suggestion was 2 use a seperate cc n parallel d incoming six panels 2 charge up the battery.Was ur take oga |
Re: Solar Energy, A Complement To FTA by obitobe: 11:00am On Oct 25, 2023 |
ZIKEYBOY11: You are better off having it in series cause of the PV input voltage range. Also the charge controller is a MPPT type. |
Re: Solar Energy, A Complement To FTA by casualobserver: 12:08pm On Oct 25, 2023 |
kristien4: This is the problem I have with tubular batteries. The problem is that when charging a flooded lead acid battery, you are supposed to temperature compensate. For instance you are supposed to reduce the charging voltage by .005v for every cell for every 1 degree increase in temperature above 25degrees. If you have a 48v system that is 4 batteries x 6 cells per battery I.e .005 x 4 x 6 or .12v per degree above 25. Tubular batteries should not be indoors but even indoor temperature could easily be 30c. If they are placed outside the temperature could easily be 39c and often 35c. At 35 degrees you are sending a charge voltage to your batteries that is 1.2 v above what it should be. That’s what you call overcharging and this degrades and kills lead batteries. That is what leads to the bubbling sound you are hearing. You are effectively equalizing your batteries all the time….and giving off gases. Bubbling should only happen during equalization. Equalization should only be done once a month a or once every 3 months. The problem is that most of the hybrid inverters on the market do not have BTS for temperature compensation. The only one I have seen is Deye and we all know deyes are expensive. The only way to properly charge your lead batteries is to use MPPT charge controllers as they tend to come with battery temperature sensors. The problem with charge controllers is that you are constantly pulling power from the batteries not directly from the panels with a hybrid. I would rather power directly from the panels and draw from batteries only when solar power is not enough or at night than constantly drawing power from and working the battery with a charge controller. This is the dilemma I am trying to solve myself before I pull the trigger. If I go lithium I don’t want to get any of these cheap lithium batteries like Felicity (1st hand reviews/ opinions are hard to find and the few about are spotty at best) and I don’t want to spend 1.5-6m on 8 tubular batteries that may not last because they are constantly being overcharged and over utilized. I t will be interesting to hear from the experts how they account for temperature compensation when they 8nstall tubular batteries. 1 Like
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Re: Solar Energy, A Complement To FTA by brightk(m): 12:12pm On Oct 25, 2023 |
casualobserver:i beg to disagree on the part of drawing current from batteries. When ur pv surpasses ur current load it would power ur serup without touching ur batteries if in excess ur batteries will charge |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 12:19pm On Oct 25, 2023 |
shogbenga: you have all this on just 8 pieces of 12v 200ah battery ![]() ![]() ![]() back to your question your 8 batteries if in good health can only carry a max of 1.6kw, so you need to ensure your panels would bring in the balance of 3kw....and also because of the varying weather/suns intensity..you may need up to 6kw panels to ensure you are sure of producing average of 3kw all the time......then the wahala of this design is that you may also exceed your battery acceptable charging current, likely 20 or 30amps.......unless its special agm that you can do 60amps. lastly for you or anybody running or planning to run such a huge load... best you for lithium battery...or 2nd best option, these 2v 1000amp or higher battery 1 Like |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 12:24pm On Oct 25, 2023 |
kristien4: for series connection, current remains the same, voltage increases. @ c20 in series..10amps is the recommended charge rate if you want to play it by the book, but you can do 20amps without issues...anything above 22amps...you are asking for trouble...the battery will be heating up and boiling. the 40amps would have been ok, for parallel battery connection, since the 4 batteries wud share the 40amps. in series..the 40amps wud go tru each battery -- very very wrong. you risk premature battery failure, shud you persist in doing this!!!!! 1 Like 1 Share |
Re: Solar Energy, A Complement To FTA by casualobserver: 12:26pm On Oct 25, 2023 |
brightk: You clearly did not understand what I said. What I said is that I prefer a hybrid so it powers the load 1st and then charges the batteries with the excess and only draws from the battery when the solar power is less than the load or at night which is what you have described above. What I said is that if I decide to use a SCC to charge the batteries in order to allow for Temperature compensation either in addition to a hybrid or in conjunction with an inverter charger, you are drawing power directly from the batteries or wasting solar power. It’s not a very efficient way of doing things because it means having to dedicate a set of solar panels for daytime consumption via the hybrid and another set for the SCC to ensure temperature compensated charge of the batteries. In addition you can’t totally stop charging by the hybrid so even if you limit the current to the minimum it will still send a higher than appropriate charge voltage to the battery. One might as well stump up the money for a Deye with BTS or get lithium. In any event should their be a need to charge the batteries via the hybrid either on cloudy days or at night we are still back to the original problem that all these hybrids on the market Growatt, axpert, felicity etc do not do temperature compensated lead acid charging and will degrade batteries in the long (maybe even short) run. 1 Like |
Re: Solar Energy, A Complement To FTA by Valto(m): 12:50pm On Oct 25, 2023 |
Justice629:sorry for your bad experience, but wrong assumption bro. people still use brand new grade A cells to couple, i order cells from reputable Chinese suppliers (docan,shenzhen starmax, shenzhen xuba and shenzhen new deriy) most of my cells have capacity test performed on them, and they are all above capacity with very high cycles and authentic QR code. i use the best Bluetooth bms, pure copper battery terminals, thick copper 10mm, 16mm,25mm,35mm wires depending on battery capacity. Premium lithium battery packs are pricey, but better soup na money kill am! Never will u open up my pack and see low grade crap cells 10 Likes |
Re: Solar Energy, A Complement To FTA by shogbenga: 1:37pm On Oct 25, 2023 |
earthrealm: Thanks bro for your concern and input Currently the load is less than 1kw but I am trying to double the load . For planning purposes, i assumed 4 kw load if am to go off grid, though sure I won't exceed 2-3kw Thanks |
Re: Solar Energy, A Complement To FTA by dollarnaira: 1:38pm On Oct 25, 2023 |
Valto: You get time to they explain o. There are fake and original humans. Those who buy from you will understand. 4 Likes |
Re: Solar Energy, A Complement To FTA by dollarnaira: 1:43pm On Oct 25, 2023 |
Justice629: So na bc ur experience bad mean say "naija sellers" are bad. Most ppu duped under lithium are those with low knowledge on the product purchased. Most ppu need to understand basic knowledge on batteries lithium or acid. This knowledge will make you ask sensitive questions b4 making purchase. 1 Like |
Re: Solar Energy, A Complement To FTA by TechGeek777: 3:32pm On Oct 25, 2023 |
Justice629: Abeg share your experience, so others go know the name of the vendor 1 Like |
Re: Solar Energy, A Complement To FTA by brightk(m): 4:47pm On Oct 25, 2023 |
casualobserver: Abeg nor mind me jare. I wanted to edit my post but mtn n nairaland refused to allow me breath. I understood ur post clearly. Hybrid is gud wen u have enough pv in various weather intensity to cover ur loads if not it ends up substituting d renain current with ur battery. GOD B WITH U if u re using lead acid. They wont last becos de will receive partial charging cos of low pv input |
Re: Solar Energy, A Complement To FTA by brightk(m): 4:50pm On Oct 25, 2023 |
dollarnaira:valto battery de handle loads wella. One de site de work him arse out ![]() |
Re: Solar Energy, A Complement To FTA by dollarnaira: 5:04pm On Oct 25, 2023 |
brightk:You could be tag a fake reviewer with an alternate account. |
Re: Solar Energy, A Complement To FTA by temi4fash(m): 5:10pm On Oct 25, 2023 |
Valto: Does an increase voltage for the solar arrays cause the Battery to charge faster? How do we then apply the Current rating of the CC as well as the max power? Thank you |
Re: Solar Energy, A Complement To FTA by temi4fash(m): 5:32pm On Oct 25, 2023 |
brightk: Can you expanciate on this? from your calculations, the CC cannot be used for the 2 arrays right |
Re: Solar Energy, A Complement To FTA by mank1234(m): 7:23pm On Oct 25, 2023 |
Valto: When you tell them your price they will run to the other person. And when the real experience of poor quality comes after the sweetness of low price, they will come there to generalize. ![]() 2 Likes |
Re: Solar Energy, A Complement To FTA by isangjohnson: 8:53pm On Oct 25, 2023 |
Valto:Selina representing Shenzhen New Deriy does NOT sell grade A cells. If you doubt, then let her give you the manufacture test report from Eve and let's look at it and confirm. I don't know about others 2 Likes |
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