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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2300931 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 ojeysky(m): 3:34am On Jul 03, 2020 |
mank1234: I just don't want to expend on ICC as I already have emoncms up and running (which ICC also uses) on my pi and it gives me the stats I needed. So you can point me to the seller, but I need to learn how to use node-red first |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 3:42am On Jul 03, 2020 |
Dam5reey: Why not? for a proper CC it will only just peak out at 40A. When I was using felicity hybrid temporarily which is rated for 60A 1.5kw array, it often gets to the max (and as far as 1.7kw occasionally) and that's it, the rest of the power from my 2.250 array gets wasted. I think reasonable oversizing helps to guarantee constant level of harvest during bad weather condition 1 Like |
Re: Solar Energy, A Complement To FTA by futurenix(m): 4:06am On Jul 03, 2020 |
Please house, just to be sure, is a BMS current rating supposed to be the same as that of CC or lesser or there is a particular recommended value. |
Re: Solar Energy, A Complement To FTA by mctfopt: 5:19am On Jul 03, 2020 |
ojtech8291: ojeysky: Just like the person above stated, I'll do the same. The thing is whichever CC you chose out of the two you are theoretically going to lose some power out of the six 275 solar panels. |
Re: Solar Energy, A Complement To FTA by mctfopt: 5:26am On Jul 03, 2020 |
futurenix: Chose BMS based on the battery in use. Eg if you buy an 100AH LFP that can do a 1C charge ie 100A, you are better off getting a 100A BMS. This BMS can work with a 60A SCC. So if your PV supplies 60A and your inverter charger supplies 30A, the BMS can handle that. But if you buy a 50A BMS and your PV supplies 60A and charger 30A, the BMS will burn out leaving your battery charging/discharging and management unregulated. Another instance if your battery can only take 50A, buying a 60A BMS is advised, so if the charging exceeds 60A, the BMS should be able to cut it off saving your battery from being overcharged. |
Re: Solar Energy, A Complement To FTA by garbamaza: 5:45am On Jul 03, 2020 |
Good morning all, Gurus in the house I need your advice on this 24v, 100 ah lithium battery with 10a BMS. Thank you for the possible responses.
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Re: Solar Energy, A Complement To FTA by ceaser: 5:56am On Jul 03, 2020 |
tonididdy: I don't have an Xbox S one. And yes I have read somewhere in NL that it approaches 200w but most comments online say otherwise. I am not a user so I can't base my claim on personal experience. And that reminds me. How can one develop likeness for these game consoles? Is it a natural affinity or does one have to nurture it? The only time I played video games as a kid were those days of 2D 96-in-1 Super Mario Bros tekken top loading cartridge type Nintendo console. At times I like when people have fun playing it with their spouses or children. I've also heard it kinda improves reflexes and mentation. But I can't seem to bring myself to consider playing it or even consider it a worthy investment or acquisition.
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Re: Solar Energy, A Complement To FTA by ojeysky(m): 7:22am On Jul 03, 2020 |
futurenix: mctfopt: Yes but that should only the applied with small banks else one may use one kidney to buy BMS , if you have a over 400AH bank then you don't have to look for a 400AH BMS because the reality is that you won't generate or consume up to that amount of current instantaneously. So for 150AH and above a 100A BMS is fine. If you get higher at a good deal, all well and good |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 7:23am On Jul 03, 2020 |
garbamaza: Kai 10A BMS is dulling o....if it's truly LFP that is in that thing then I will suggest you yank off the BMS and put in anything from 50A to 100A |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 7:26am On Jul 03, 2020 |
ojeysky: A reminder on those accessories and updated status of the pieces left for grabs |
Re: Solar Energy, A Complement To FTA by ceaser: 7:40am On Jul 03, 2020 |
ojeysky: He said the BMS will burn out if the battery is exposed to a higher than rating current. I think in such instance, what the BMS does is to shut down (activate overcurrent protection) rather than burn out. Or am I missing something? |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 7:44am On Jul 03, 2020 |
ceaser: It should do either of what you have stated above or just limit charging to the peak and continue charging. That's what mine does, it stays at 60A max charge without any trigger but since it's solar charging which is not constant, I don't know how it will behave if I had e.g 70A constant current on it, but documentation says it will trigger over current protection |
Re: Solar Energy, A Complement To FTA by ceaser: 7:45am On Jul 03, 2020 |
garbamaza: Who puts 10A BMS on a 24v/100ah LFP? Please read the buyers' reviews to be sure the rating is truly 100Ah and not 50Ah or 40Ah sef. In addition, there are Nigerian assemblers of LFP that will offer you a 60A/80A BMS with that battery rating for around 280k. I even think that Felicity LFP will cost you less than what's in that picture. Remember that shipping fees, which might be approaching around 150k with dem DHL UPS et al, will still be added. Then when it gets to Nigeria, customs will still cut their own pound of flesh from you. That might be around another 15k to 25k. |
Re: Solar Energy, A Complement To FTA by ceaser: 7:56am On Jul 03, 2020 |
ojeysky: I've often wondered if similar BMSes can be paralleled on the batteries, like you would do with CCs. ojeysky: I think that your 200A LFP with 60A BMS might be really limiting. My 24v/100A has 60A BMS and I'm still seriously flirting with the idea of yanking it out. What has prevented me so far is fear of voiding the warranty. Once I've enjoyed it for a while, I will definitely do it cos that urge is nagging. I think next time I will insist the dude slaps in a higher rating BMS for a few extra bucks. Maybe even supply him the BMS of my choice sef. |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 8:08am On Jul 03, 2020 |
mctfopt: Yes. Didnt see any cracks, however will reinspect again.what i noticed is that the batts boil and reslease fumes during absorb at 58v..ie 14.5v per battery. And some cells boil more than the others. Batt body gets very hot abt 60 deg C So i think the major loss of the electrolyte is from the boiling during absorption charging, hence why am contemplating reducing it to 14.1v.. Wondering if the plates are heavily sulphated.some cells the electrolyte is clear, while in a few, it is discolored, especially the major electrolyte loss culprits I recall some has complained of similar issue in past. Dont know if it was resolved |
Re: Solar Energy, A Complement To FTA by mank1234(m): 8:23am On Jul 03, 2020 |
ojeysky: If you send him a mail on the email I posted he'll send you the link to download the software. After installing you send him your machine ID for him to activate one month trial. When you make payment you have access for life on the particular pi. When you're able to get the node-red up and running, kindly put me through as well. I learnt it's simple with good looking user interface and works with home assistant. |
Re: Solar Energy, A Complement To FTA by mctfopt: 8:37am On Jul 03, 2020 |
ojeysky: Well, I think I should have worded it this way choose a BMS based on both your battery and your inverter/PV's charging current capability |
Re: Solar Energy, A Complement To FTA by mctfopt: 8:41am On Jul 03, 2020 |
ceaser: The leads of a BMS are often rated according to the charging current capability. Eg if you have a 50A BMS and you push 120A through it, the lead wires will most likely melt or even the BMS enclosure itself! This is because the cooling factors may obviously not be in place for that high current capacity. I've experienced this. |
Re: Solar Energy, A Complement To FTA by futurenix(m): 9:04am On Jul 03, 2020 |
Ok. Thank you but what if the SCC and inverter charger both can supply a max of 80A each totalling 160A ( not sure if that can happen at same time) and the battery is 100AH or 200AH mctfopt: |
Re: Solar Energy, A Complement To FTA by ceaser: 9:14am On Jul 03, 2020 |
mctfopt: @ bolded Oh! Well experience na master. Na theory level me I still dey. |
Re: Solar Energy, A Complement To FTA by Dam5reey(m): 9:30am On Jul 03, 2020 |
ojeysky: It's okay then, if the plan was to oversize. |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 9:30am On Jul 03, 2020 |
mank1234: Yes, I just don't see a need to pay for what I already have(in different form)
I have node-red setup and running on my pi....I just now need to learn how to setup the flows. I never get time to sit down and study it...I was hoping for some jump start from you or anyone else |
Re: Solar Energy, A Complement To FTA by tonididdy(m): 9:55am On Jul 03, 2020 |
ceaser: Ok sir |
Re: Solar Energy, A Complement To FTA by tonididdy(m): 9:56am On Jul 03, 2020 |
Re: Solar Energy, A Complement To FTA by brainhack(m): 12:44pm On Jul 03, 2020 |
[s] brainhack: sold |
Re: Solar Energy, A Complement To FTA by ojtech8291: 6:57pm On Jul 03, 2020 |
Is this setup correct? The cable from CC to the Inverter battery nodes instead of directly to the battery. Any implication? Which can easily fried MPPT CC, high Voltage or high Current?
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Re: Solar Energy, A Complement To FTA by ojeysky(m): 7:02pm On Jul 03, 2020 |
ojtech8291: Unless the inverter has a dedicated port for that and your CC also supports that don't do it! Output from CC should go to your battery terminals! |
Re: Solar Energy, A Complement To FTA by mctfopt: 9:08pm On Jul 03, 2020 |
futurenix: Depends on the spec of the battery. Some battery can take 1C charge. So if the 200AH is such battery then you don't have a problem. As for the 100AH, that 160A definitely doesn't look good. So in that case, you'll have to make do with either one of the source charging it...either PV or inverter. So that means during the day, you can always switch off the power input into the inverter and run on only solar. At night you can put it back on. Just remember to turn it off in the morning |
Re: Solar Energy, A Complement To FTA by mctfopt: 9:11pm On Jul 03, 2020 |
ceaser: Lol The experience wasn't funny. I was jejely enjoying the current overflow, the next thing I started perceiving the smell of burning rubber! I quickly rushed to the setup and noticed the BMS has started to melt..had to quickly turn off one source of charge. Funny enough BMS is still good |
Re: Solar Energy, A Complement To FTA by DUI: 10:28pm On Jul 03, 2020 |
Good day colleagues on NL. I am new to this thread and have been impressed with the comments I have read so far. It is amazing to read so much technical information coming from so many people in just one place. Please I need assistance from the gurus. I am trying to replace my inverter batteries and also install solar panels in my home. I need information on where to get access to good quality 12v 200ah solar batteries and 300 or 400 w panels in Abuja and do not want to fall into the wrong hands. If you can assist, please provide information in this order: type, price and location of store and finally phone number. |
Re: Solar Energy, A Complement To FTA by futurenix(m): 11:33pm On Jul 03, 2020 |
Thank you plenty. mctfopt: |
Re: Solar Energy, A Complement To FTA by mctfopt: 8:58am On Jul 04, 2020 |
Who can help my friend solve this problem? He has an LFP with 24v 60A Daly BMS common port. The problem is that whenever the LVD is triggered, it does not automatically reset when charge flows from PV (say the next morning when the sun comes up) unless manually bypassed. By manual bypass I mean using a short cable to connect to the battery's negative and to the point where the BMS solar charge controller negative and inverter terminal battery negative meets, in simple terms replacing the BMS with a short wire. Is there a way to make this automatic? For instance in a remote site, it is expected that the inverter comes up by itself (if it the batteries drain at night) the next morning when the sun comes up. But this behaviour will make such a scenario not play out. |
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