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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2386747 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 jamesid29(m): 10:46am On Mar 28, 2021 |
mctfopt:Aight bro...Thanks for ur time |
Re: Solar Energy, A Complement To FTA by jamesid29(m): 10:49am On Mar 28, 2021 |
ojeysky:Aight... Thanks boss |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 10:50am On Mar 28, 2021 |
ojeysky: Wow, see levels. Oversized array, i supz. Run 2 or 3 Ac's... your eye go clear. Or consider selling off a couple of panels. |
Re: Solar Energy, A Complement To FTA by jamesid29(m): 11:11am On Mar 28, 2021 |
Really great review and breakdown. Kinda confirmed my suspicion as in things like this, there's always a tradeoff. But from your breakdown and it's price, I think the tradeoff is really not that bad.... As long as they don't give issues or constant headache for a good number of years, it might not be a bad buy. Ever heard of this Nigerian company "Pelton Battery"? Saw them online when I was looking into somethings... I'm not sure they are still operating though. Thanks alot for your review boss. Really appreciate it NiyiOmoIyunade: |
Re: Solar Energy, A Complement To FTA by jamesid29(m): 11:19am On Mar 28, 2021 |
adrusa:Thanks for the advice boss... Would surely look into it. Quick one boss... From your experience, can one comfortably get 5-6 yrs on the batteries without any headaches, even while going up to 90% DoD? |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 12:56pm On Mar 28, 2021 |
NiyiOmoIyunade: That is 3.55v it will definitely get the cells to 100% easily and fast. If you do 3.4v then maybe it won't make the 100% capacity fast enough before the sunlight goes off. A less than 3.4v is what will sure ensure below 100% capacity capacity for Lifepo4. Max I do on my cells is 55v(3.43 per cell) yet it still makes 100% charge most time but I don't want to do less because I need to take advantage of the short sun hours as well |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 1:20pm On Mar 28, 2021 |
earthrealm: My array is even undersized, my Deye takes 10kw+ standard, am still at a little above 5kw |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 1:25pm On Mar 28, 2021 |
On my Pylontechs I do 3.46v per cell. Pylontech is 15s so a total of about 52v. I am aided in this by being able to see the individual cell voltages and ensure that they all get to nearly full. The Felicity BMS is yet a blackbox to me so I played safe with 56.8v. I may consider pushing the voltage further down 3.47 x 16s for a total of 55.5v - this does seem really low compared to manufacturers recommend 57.6v - a full 2v delta!!! Makes you wonder if their design goal is to kill off their cells fairly early ojeysky: |
Re: Solar Energy, A Complement To FTA by dapsyra(m): 1:50pm On Mar 28, 2021 |
Thank you for the review. Due to the relatively flat charge/discharge curves of LiFePo4 chemistry, your test was within 95%-97% DOD. At 3v/cell, the LiFePo4 battery has only 2-3% of its rated energy left during discharge. At 3.45v/cell, the battery is 99% full when charging. To operate within 80% DOD, charge the battery to 3.4v/cell and discharge to 3.1v/cell at 1C rate or below. NiyiOmoIyunade: 1 Like |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 2:13pm On Mar 28, 2021 |
jamesid29: My cells are just 6 months old and I do 60 to 80% DOD daily (occasionally 90%). The cells have not deviated from their performance the first time I bought them. Now 6 months is a very short time for the lifetime of the cells. I know folks here have used their littium chemistry for over 2 years, we've not heard of 5 years testimonials yet, cos it seem most of us started active use in the last 3 years.
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Re: Solar Energy, A Complement To FTA by ojeysky(m): 2:38pm On Mar 28, 2021 |
NiyiOmoIyunade: I think they just adviced on max charge of 3.6v I expect they should have given a range and not give the impression that one has to charge at 3.6v |
Re: Solar Energy, A Complement To FTA by dapsyra(m): 2:48pm On Mar 28, 2021 |
While the LifePo4 chemistry can accept a charge of 3.6v/cell without damaging the battery, there is very little energy stored above 3.45v - only about 1%. This is the reason why the cell voltage rises sharply after 3.45v even with very low charge current. NiyiOmoIyunade: 1 Like |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 2:49pm On Mar 28, 2021 |
My Oga Dapsyra. Thank you very much for this, very useful reference information to have. I can corroborate these numbers because on my Pylontechs the cells are still above 15% DoD at 3.2v per cell but BMS would rudely cutoff the battery of you try to place a large load when there is below 12% capacity left. Everytime you drain below 94% DoD, the BMS logs this fact and it counts against your warranty ��� dapsyra: |
Re: Solar Energy, A Complement To FTA by dapsyra(m): 3:05pm On Mar 28, 2021 |
Ojeysky, your CellDiff is not looking good. Did you top balance the cells before using them? ojeysky: 1 Like |
Re: Solar Energy, A Complement To FTA by Dam5reey(m): 3:08pm On Mar 28, 2021 |
ojeysky: Nice review DIY Lifepo4 pack is taking over.. |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 4:11pm On Mar 28, 2021 |
dapsyra: It's at 90% capacity at the time of taking that pics o and taking almost 30A at that time. Attached is pics at 98%. Yes maybe it's not absolutely balanced but not deviated either.
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Re: Solar Energy, A Complement To FTA by adrusa: 4:14pm On Mar 28, 2021 |
jamesid29: Now you are not seeking for my experience, you are asking me to make a prediction, to foretell the future. That is not my area of concentration/calling. However, going by what I have seen over the last one and half years in the LFP land, I will expect it to last that long or more. About one and a half years, there is no evidence of reduction in capacity, efficiency or voltage. The batteries are still performing just like the day I installed them. It may be an indication of what to expect, but who knows what surprises are lurking in the corner. |
Re: Solar Energy, A Complement To FTA by IYGEAL(m): 4:39pm On Mar 28, 2021 |
ojeysky: Does this imply you use no extra cc? |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 4:46pm On Mar 28, 2021 |
IYGEAL: Not at all the CCs are all in my Deye hybrid inverter. That thing is a monster Bro |
Re: Solar Energy, A Complement To FTA by IYGEAL(m): 4:53pm On Mar 28, 2021 |
ojeysky: That's awesome. |
Re: Solar Energy, A Complement To FTA by IYGEAL(m): 5:01pm On Mar 28, 2021 |
ojeysky: How many CCs actually? |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 5:13pm On Mar 28, 2021 |
IYGEAL: It has dual mppt with each capable of doing 22A (11A per string) 5kw each. Note that it's a high Voc inverter |
Re: Solar Energy, A Complement To FTA by IYGEAL(m): 8:19pm On Mar 28, 2021 |
ojeysky: I see. Makes sense. You'd have reduced spend on cabling. So each is rated 95Amps of actual charging current that adds up to the 190A overall? I find the hybrid interesting. |
Re: Solar Energy, A Complement To FTA by chris81964(m): 8:39pm On Mar 28, 2021 |
ojeysky:4.5 liters and I purchased it at a store that brings in slightly dented items in Lekki. I paid 40k at the time. Much more expensive today 1 Like |
Re: Solar Energy, A Complement To FTA by justcallmenuel(m): 9:39pm On Mar 28, 2021 |
90w All in one solar street lights still available, #17,000. Call/WhatsApp us on 08168986461
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Re: Solar Energy, A Complement To FTA by justcallmenuel(m): 9:40pm On Mar 28, 2021 |
100w All in One solar street light now available, #95,000. Call/WhatsApp us on 08168986461
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Re: Solar Energy, A Complement To FTA by justcallmenuel(m): 9:43pm On Mar 28, 2021 |
18 inches Qasa AC/DC and rechargeable fan is available, #28,500. Call/WhatsApp us on 08168986461 1 Like
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Re: Solar Energy, A Complement To FTA by justcallmenuel(m): 9:49pm On Mar 28, 2021 |
Famicare inverters now available. 1.5kva 12v - #78,000. 2.5kva 24v - #105,000. 3.5kva 24v - #120,000. 5.5kva 24v - #190,000. Call/WhatsApp us on 08168986461 1 Share
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Re: Solar Energy, A Complement To FTA by justcallmenuel(m): 9:51pm On Mar 28, 2021 |
DC hot plate still available, #25,000. Call/WhatsApp us on 08168986461
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Re: Solar Energy, A Complement To FTA by justcallmenuel(m): 10:37pm On Mar 28, 2021 |
Gacia battery now available. 100Ah - #47,000 150Ah - #75,000. 200Ah - #95,000. Call/WhatsApp us on 08168986461
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Re: Solar Energy, A Complement To FTA by Moustache: 11:38pm On Mar 28, 2021 |
Icellpower Deep cycle Inverter battery 12v-200Ah available for sale for just #110000 Place your booking via WhatsApp number 09059362619
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Re: Solar Energy, A Complement To FTA by earthrealm(m): 11:58pm On Mar 28, 2021 |
ojeysky: How early does the deye wake up? Seems the achilles heel of these hv hybrids is late wake up, usually after 9am, Seen same pattern on phocos and Sorotec, |
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