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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2275410 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 Penuelseun(m): 9:53am On Aug 18, 2019 |
Good morning to my ogas in the house,Pls if you have an mppt charge controller you are no longer using and are willing to dash out or sell at a cheap rate, I need it pls. The pwm controller I have is not working optimally and I don't have enough money now to go for a new mppt controller. Thanks |
Re: Solar Energy, A Complement To FTA by lexi28(m): 11:01am On Aug 18, 2019 |
Horlaarsco: hi, yes you can. a 2kv inverter should power it, at least if it has at least 120% surge rating. cheers |
Re: Solar Energy, A Complement To FTA by Deluxe8000(m): 12:05pm On Aug 18, 2019 |
is there a whatsapp group on solar system issues? i will like to join. |
Re: Solar Energy, A Complement To FTA by mank1234(m): 12:35pm On Aug 18, 2019 |
ojeysky: 2kWhr from an array of 1.5kw is not impressive. You should be doing 3-6kWhr if the system is performing optimally (enough load and battery bank to accept all it can generate) KWhr explanation: your system works from morning to evening generating power in kw ranging from 0kw to 1.5kw since your panel max at 1.5kw. The sum of all that generation is taken taken to hour term. Example if you have a constant 600w power output for 10min that's equivalent to {600*10/60} ie 100Whr. So a 2kWhr generation can be said to be 2kW power output for 1hr but in reality the power was lower (less than 1.5kW) spanning a period between 6am and 6pm 5 Likes 1 Share |
Re: Solar Energy, A Complement To FTA by Trippledots(m): 12:41pm On Aug 18, 2019 |
mank1234: Thank you for clarifying this. There is a difference between kw/hr Value and harvested peak power value. |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 1:38pm On Aug 18, 2019 |
mank1234: Right and I think I hinted that in my comment earlier; my current bank and load is not optimal so am not getting all the juice out yet. Nevertheless all my consumption needs are meet for now which is most important.
Yup understood, though I must note that my generation period is currently between 8:30 to 5pm and this is due to the fact that I am currently running the minimum panel requirement for the system hence due to low Voc the CC doesn't commence mppt early/late enough, will add more Panels in future as budget permits. |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 6:13pm On Aug 18, 2019 |
Penuelseun: A client of mine had surge issues with this new model mppt and can give out if you can repair . Reach me if interested ! 3 Likes
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Re: Solar Energy, A Complement To FTA by dragnet: 9:22pm On Aug 18, 2019 |
kiekie1: For knowledge sharing, Please expatiate, what voltage and amps was he operating at? did he use excess panels than required? 1 Like |
Re: Solar Energy, A Complement To FTA by olaolu11(m): 10:55pm On Aug 18, 2019 |
If a 12 volt battery reads 11.7 volts, what does it mean/imply. Does it mean the battery is no longer good? |
Re: Solar Energy, A Complement To FTA by Trippledots(m): 12:19am On Aug 19, 2019 |
olaolu11: Under what conditions was that reading taken? What are you trying to get when you took the reading? 11.7v is just a value within the operating range of a "12v" battery. |
Re: Solar Energy, A Complement To FTA by Penuelseun(m): 7:47am On Aug 19, 2019 |
kiekie1:I will sir, thanks 1 Like |
Re: Solar Energy, A Complement To FTA by olaolu11(m): 4:51pm On Aug 19, 2019 |
Trippledots: I understand you can check the quality of a battery when buying it by using a multimeter. So i used it to check a supposedly new battery and it read 11.7 Unfortunately i coulnt get the ampere because it was a 10amps multimeter |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 5:41pm On Aug 19, 2019 |
A brand new battery reading 11.7v is a bad sign. It probably means it has been left without charge for at least a year - in this scenario, sulfation would have built up on the plates and very likely capacity would have degraded - a proper recharge should restore some capacity but you should not expect 100% - if you must buy this battery, discount the price appropriately. You cannot measure how much power is stored in a battery by using a multimeter and measuring across the battery terminals - you will need to apply a constant load to a fully charged battery and measure how many hours it takes to discharge the battery and infer the Ah capacity as a function of Load × Backup Time (in Hours). It is dangerous to attempt amps measurement across battery terminals with the test leads of a multimeter. Even high end multimeters are capped around 20A if you are doing in-line measurements - placing the test leads directly across the battery terminals is effectively dumping the entire battery into the multimeter - you may succeed in this enterprise if you connect the test probes only momentarily as the test probe cables will run hot very quickly - with cheap meters you will very likely blow a fuse as trying to measure amps across the +ve and -ve battery terminals is essentially shorting the battery and dumping the entire energy stored through the multimeter. olaolu11: 5 Likes |
Re: Solar Energy, A Complement To FTA by generationz(f): 8:59pm On Aug 19, 2019 |
Hello people, Is it possible to use a 105,000mah powerbank as a substitute for batteries in an 80 watt solar panel , charge controller and inverter. |
Re: Solar Energy, A Complement To FTA by lexi28(m): 9:20am On Aug 20, 2019 |
generationz: theoretically, Yes. but there will be some requirements. 1. the power bank should have inbuilt BMS. I guess that you are referring to the Zinox Powerbank? 2. you charge controller should have a feature for charging lithium or LFP batteries. not the ordinary pwm charge controller. this is because default voltages for AGM batteries are higher than those of LFP or lithium batteries. 12V AGM can take 14.5v charge, 12.6v lithium will not. this controller on aliexpress may be of help. someone on the forum here has used it, going from pictures he posted. https://m.aliexpress.com/item/32902994892.html 3. the 80w panel will produce like 4.5a at best, on cloudy days even less. you can go for the 150w (7-8amps max) panel instead, so that on cloudy days you could at least match the power bank Dc charger. my 2 pence. 2 Likes |
Re: Solar Energy, A Complement To FTA by lexi28(m): 9:21am On Aug 20, 2019 |
generationz: theoretically, Yes. but there will be some requirements. 1. the power bank should have inbuilt BMS. I guess that you are referring to the Zinox Powerbank? 2. you charge controller should have a feature for charging lithium or LFP batteries. not the ordinary pwm charge controller. this is because default voltages for AGM batteries are higher than those of LFP or lithium batteries. 12V AGM can take 14.5v charge, 12.6v lithium will not. this controller on aliexpress may be of help. someone on the forum here has used it, going from pictures he posted. select the model you want from the checkout. lithium versions have the DY PREFIX. https://m.aliexpress.com/item/32902994892.html 3. the 80w panel will produce like 4.5a at best, on cloudy days even less. you can go for the 150w (7-8amps max) panel instead, so that on cloudy days you could at least match the power bank Dc charger. my 2 pence. |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 9:35am On Aug 20, 2019 |
Hello, I want to get ceiling and standing fan with low consumption. I have found some DC fans at good price, my question is considering I will be connecting it to a AC power source, what AC/DC adapter can I use for it? Thanks
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Re: Solar Energy, A Complement To FTA by generationz(f): 9:43am On Aug 20, 2019 |
lexi28: Thanks a lot. Yes I use the zinox power bank. The black 105000 m a h. what about inverter? Which inverter should I use? |
Re: Solar Energy, A Complement To FTA by olopan(m): 10:08am On Aug 20, 2019 |
Good day everyone, have got a question pondering on my mind all day long, is this setup possible on Victron Quattro and also .. from the same power source ... please kindly examine the picture attached. 1 Share
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Re: Solar Energy, A Complement To FTA by chris81964(m): 12:22pm On Aug 20, 2019 |
You need three inverters to make it happen. Each inverter will represent a phase. olopan: |
Re: Solar Energy, A Complement To FTA by GeorgeD1(m): 12:54pm On Aug 20, 2019 |
NiyiOmoIyunade: niyi, you're very much on point. in the early days of my renewables journey, i did some extensive research on various methods of battery connections in a bank and the method i finally adopted was ranked among the best. that, along with my oversized solar array has ensured that my batteries remain in top shape these many years, beating even the most enthusiastic predictions. and, it's also the reason why i don't use a balancer despite having three parallel strings in my bank. |
Re: Solar Energy, A Complement To FTA by lexi28(m): 2:25pm On Aug 20, 2019 |
generationz: modified sine wave inverters come cheap. 300-500w are readily available. but they have one drawback. they can't handle surge currents from inductive loads like fans and the rest. pure sine wave inverters are better. pure sine wave inverters are more expensive and hardly come in lower capacities less than 1000w. p.s you should know that there is a load limit of 100w on the zinox power bank. so I guess buying an expensive pure sine wave inverter for a 100w load limit is not cost effective. depending on your load, buy a MSW 300W portable inverter. or check this link: (kindly read the reviews, use Google chrome browser if necessary): https://m.aliexpress.com/item/32812776117.html https://m.aliexpress.com/item/32804402790.html best of luck 1 Like |
Re: Solar Energy, A Complement To FTA by olopan(m): 3:08pm On Aug 20, 2019 |
Thanks for the quick response Mr Chris, am just being a cheapskate here, trying to bypass getting a generator cabling to the inverter and using the output of both PHCN and GEN after the changeover and in the sequence of Line one for the AC1 Input and Line two as AC 2Input. Guess its a NO GOOD Area with my diagram. CC: Chris81964 chris81964: |
Re: Solar Energy, A Complement To FTA by adrusa: 6:52pm On Aug 20, 2019 |
Let me share a little experience with you, especially for people who may be employing installers to do their solar jobs. A small solar set up was installed in my office with 8 batteries at 48v and what appeared like an a PWM controller but with MPPT written on it. We really didn't put it to use until sometimes last week. However, we noticed that the batteries soon died, even in the afternoon with blazing sun. So my colleagues in the office informed me and I went down to see the installation. I asked that the NEPA input should be put off and put a load on the inverter. Lo and behold, the charge controller was not supplying any current to the battery. So, we were effectively running on the batteries. While the installer was fiddling with the installation, I looked at the label on the CC. Low and behold, it is labelled "auto 12/24v". So, the installer actually put a CC with max 24v input on a 48v system! Fast forward to this afternoon, when the installer brought a Fangpusun CC (the FM80 Clone) to replace the CC. Still the CC was still not supplying any current to the batteries. Unfortunately, the installer was garrulous, unwilling to own up to his mistakes and was insisting that everything was fine. By the way, the Fangpusun was displaying "unloaded" at the right lower corner. I really have no idea what that means since I have never seen that on my original outback CC. So, lessons 1. Don't assume that your installer know what he is doing, pay attention and ask questions 2. Ask a more knowledgeable friend to help you look over your installation if it is working well 3. Don't let any installer bamboozle you. If he can not explain what he is doing in a way you can understand, he probably does not know what he is doing. But for the fact that I checked, we would have been thinking that our solar was working well, when we were only using NEPA to charge our batteries. Finally, what does "unloaded" mean on Fangpusun Outback Clone? 3 Likes |
Re: Solar Energy, A Complement To FTA by generationz(f): 6:53pm On Aug 20, 2019 |
lexi28:Thanks. Is the inverter needed for the solarbpanel or powerbank? Considering the fact that I can use the power bank to charge my phone and laptop without an inverter on a normal day when it was charged with electricity. |
Re: Solar Energy, A Complement To FTA by chris81964(m): 7:46pm On Aug 20, 2019 |
The Quattro has 2 AC inputs and 2 AC outputs. Even if you do what you are thinking about, only one of the two will work. It looks at the most qualified and that is what it uses. I am guessing at what you are driving. olopan: |
Re: Solar Energy, A Complement To FTA by odimbannamdi(m): 8:33pm On Aug 20, 2019 |
ojeysky: Bro, how much is it? I am considering buying one as well. |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 11:06pm On Aug 20, 2019 |
odimbannamdi: 16k do you have direct DC setup or you are doing conversion? |
Re: Solar Energy, A Complement To FTA by zeestone99(m): 1:01am On Aug 21, 2019 |
adrusa: I will rather call you the installer. It's seems your company gave the job to a Carpenter that watched YouTube unknowingly, or your company went for the cheapest available option and got a cheap result. No known installer here with good reputation will do this. Next time just call me ![]() ![]() ![]() 3 Likes |
Re: Solar Energy, A Complement To FTA by zeestone99(m): 1:02am On Aug 21, 2019 |
We will be installing our set of lithium batteries soon. I will keep the house updated. Kudos to you all for making this thread lively and informative. Cheers 1 Like |
Re: Solar Energy, A Complement To FTA by lexi28(m): 1:13am On Aug 21, 2019 |
generationz: hi, simple question. your laptop & phone have ports / sockets to which they are plugged into. they basically are DC devices. the solar panels are an alternative to the DC charger that comes with the power bank, so if you do not have PHCN, the panels will charge your power bank. knowing the Powerbank you are using, you can only use one charging source at a time. the inverter comes into use when you wish to watch TV and other gadgets that require nepa supply. if your laptop and phone is all you ever use your Powerbank for, you do not need the inverter. your connection will be: solar panels=> charge controller => Powerbank charge input. that is all. hope it helps 1 Like |
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