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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2246022 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 NiyiOmoIyunade(m): 8:50pm On Aug 10, 2018 |
Perfecto! It would seem you are in a good place then. Be aware though that gassing voltage is about 14.4v at the 25°C reference - if you are not deep discharging your batteries then you may not need to go as high as 14.6v. Charging a battery properly is a fine art akin to balancing on the point of a needle - some finnagling may be required before you hit the sweet spot. You should troubleshoot why your voltage sense cables appear to be giving incorrect readings at the inverter/solar charger. Do you have temperature compensation as well? If not you may try for 29v actual measured voltage during absorb - unnecessary gassing when charging at high voltages may appear to give you higher battery capacity in the short run but in the long run will shorten your battery life as the battery dries out quickly especially when combined with high charge current. You need to find that sweet spot that gives you the best bang for buck - not to say you are not already there but just laying out the guiding principles. duwdu: |
Re: Solar Energy, A Complement To FTA by DUNKA(m): 12:10am On Aug 11, 2018 |
kiekie1:my problem with you is that Even if you want to settle with obasanjo and atiku your pricing na war ![]() ![]() 1 Like |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 8:49am On Aug 11, 2018 |
DUNKA: Kindly reach us for price as discussed . Thanks! WHATSAPP::: https:///send?phone=2348170385620 |
Re: Solar Energy, A Complement To FTA by chris81964(m): 9:44am On Aug 11, 2018 |
Looking for one quality used 300 watt poly panel. I have 5 and need a 6th or I am forced to use a 250 V Victron Controller. |
Re: Solar Energy, A Complement To FTA by Barezzi(m): 4:26pm On Aug 11, 2018 |
Guys, Is there any danger connecting the AC output of an Inverter to its AC input? |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 6:07pm On Aug 11, 2018 |
Barezzi: Bossman, is this ?z coming from you ![]() 4 Likes |
Re: Solar Energy, A Complement To FTA by Barezzi(m): 7:01pm On Aug 11, 2018 |
I am not sure it'll do anything. Maybe drain the batteries, since the only load is the inverter itself. I just wanna be sure... |
Re: Solar Energy, A Complement To FTA by duwdu: 7:26pm On Aug 11, 2018 |
NiyiOmoIyunade: Indeed, I have a temperature sensing cable as well, but the CC is not picking up that up properly, either. So I guess I do have my further work cut out for me w.r.t. the CC or set up. Thanks for your words of wisdom and the set of best practices; I'll soak them in, for sure. Much appreciated. ........ P34c3 ..... ... |
Re: Solar Energy, A Complement To FTA by Saipro(m): 7:38pm On Aug 11, 2018 |
Barezzi:Usually, asides increased drain on the batteries (assuming not grid-tied), nothing should happen. Mid to premium builds would sense self-feed and either shutdown or display an error. Such has been my experience. Never seen an inverter damaged by such though. 3 Likes |
Re: Solar Energy, A Complement To FTA by chris81964(m): 8:03pm On Aug 11, 2018 |
Saipro:The original Yiyen inverters used to go poof. 2 Likes |
Re: Solar Energy, A Complement To FTA by Saipro(m): 10:31pm On Aug 11, 2018 |
chris81964:That's interesting. Lucky you. We learn everyday. My original 1kVA nameless Chinese inverter (with negligible footprint consumption) would show a false charging light making the gleefully unaware user think it's actually charging itself (got into a few such arguments which I never really could win). 1 Like |
Re: Solar Energy, A Complement To FTA by Oshomo12(m): 4:04am On Aug 12, 2018 |
Barezzi: I actually tried it with a "1.5kva" inverter constructed by my student. It wanted to charge the batteries but couldn't and gave a sound as if it was overloaded. Note: it's just a basic law of physics, conservation of energy! You can't just create anything like that, no magic. |
Re: Solar Energy, A Complement To FTA by mctfopt: 6:56am On Aug 12, 2018 |
Barezzi: My friend some years back was super fascinated by perpetual motion machine and tried to build one. He ended up blowing the not-so-smart Chinese inverter when he tried this stunt. ![]() 1 Like |
Re: Solar Energy, A Complement To FTA by bigrovar(m): 8:50am On Aug 12, 2018 |
Na wa for August o. Seems today is going to be yet another bad solar day across Nigeria. Generation has been up down up down.and I have a feeling it will get worse. 1 Like |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 9:47am On Aug 12, 2018 |
bigrovar: Haha sure nt much a problem for hybrid designs ![]() ![]() ![]() 1 Like |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 9:50am On Aug 12, 2018 |
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Re: Solar Energy, A Complement To FTA by bigrovar(m): 10:17am On Aug 12, 2018 |
kiekie1:wind turbine is an an option in Nigeria we don't have enough wind. I am completely offgrid. This is the 3rd time the generator would be fired up this year the 2k fuel I got is yet to be exhausted so small price. Never had 2 consecutive bad day as my generation log for out going week will indicate, it usually alternate between a bad and very good day. and today might still turn out good. 1 Like
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Re: Solar Energy, A Complement To FTA by kiekie1(m): 10:25am On Aug 12, 2018 |
bigrovar: Yo yo yo that's quite cool as Oga Pranil has all that , yet creates room for Gen to kick in at certain periods ![]() ![]() NB: Mr Niyi has also joined us in large battery bank designs(38400wh) if I remembered correctly , am sure his can outlast 2 weeks of bad weather without AC , microwave, water heater usage to fiddle around 50-60% DOD .. Cheer's 1 Like
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Re: Solar Energy, A Complement To FTA by nonoski: 11:03am On Aug 12, 2018 |
Good day house I'm trying to put up a borehole project in the village somewhere in Anambra State. It's a village project that will be automated since nobody will be in the house most often time. Which of these two options would u pick Option 1: use Solar powered submersible (2HP) with automatic float switch. The submersible is connected directly to the solar array without the use batteries nor inverter. The solar array required is 1.8kw or more. Option 2: use a regular 2hp submersible pump and get an inverter + Solar setup. I am thinking of getting a 6.3kw solar array connected to a 600amps 48v battery bank using 2 Charge controller and 1no 5kva inverter. My issue with option 1 apart from lower overral cost is that I have seen it installed in many places and the submersible pumps are usually prone to failure. The solar array will only be used by the borehole. While option 2 apart from powering the borehole between 11.30am - 2.30pm will also power the house. |
Re: Solar Energy, A Complement To FTA by zeestone99(m): 11:18am On Aug 12, 2018 |
nonoski: Option 2 is fine, u get power 4 d house too wch ll b very useful, that's if no1 scatters the whole thing. Call/whatapp 08117398294 for quote Gracias 1 Like |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 11:49am On Aug 12, 2018 |
nonoski: Hello Nonoski, the both ideas are good but i will say 2hp is not really energy efficient especially when you ain't powering a large tank or community tank project ![]() ![]() ![]() 3 Likes |
Re: Solar Energy, A Complement To FTA by bigrovar(m): 12:09pm On Aug 12, 2018 |
kiekie1: My problem is not large battery bank. But my strategy is to priotize a full battery over all else. Lead acid battery don't like being left in a state of discharge for a long time and one way to get best from them and prevent sulphation is to ensure they get full charge everyday. Hence my battery bank was 85% full when I turned on the gen because solar supply was not enough to charge battery and power the house at the same time.. So it is cheaper to charge battery from solar and power the house with gen..when weather changes for the better I can turn off the gen. If I spend 3k a year on fuel to ensure my battery never stays under charge for more than 18 hours in a cycle.. I think it is money well spent. 4 Likes |
Re: Solar Energy, A Complement To FTA by Barezzi(m): 12:09pm On Aug 12, 2018 |
I'd go with option 2 Nonoski. I use a 1hp sub pump, and my tank capacity is 4000 litres. It's level controlled between the hours of 11.30am and 1.30pm. |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 12:36pm On Aug 12, 2018 |
anyone knows a budget 5kva/4kva inverter that has a charging current in excess of 40amps?.not usa or german ![]() ![]() mustpower,highpower etc all clock in at 31amps max, so those running 8x200ah batts on these devices are you not bothered as the charging rate isnt upto c/10, |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 12:37pm On Aug 12, 2018 |
bigrovar: Nice steps tho for your flooded battery bank and i never knew you wer entirely off the grid supply abinitio. The few examples I sighted all hovers around safe DOD's and sulphation won't occur to be factual... It was once argued few pages ago to intentionally allow your bank drain below 12v sometimes maybe for memory bla bla bla reasons ![]() 1 Like |
Re: Solar Energy, A Complement To FTA by nonoski: 12:39pm On Aug 12, 2018 |
kiekie1: zeestone99: Barezzi: Thank you all for the response. I'm yet to start the project, i'm still carrying out feasibility studies. The tank capacity will 12,000 Liters. In the part of Anambra I come from the depth of the borehole (450ft+) will over labour a 1HP pump if at all it will work. So for now i'm stuck with the 2HP option. The submersible will only run for 3hrs a day (11:30am - 2:30pm) A 2HP submersible pump is about 1500W if i add 20% inefficiency that will be about 1800w. So for the 3hr it will pump daily will be about 5,500-6,000w max from a battery bank of 28,800 ( 14,400w at 50% DOD) which i don't see as bad 2 Likes |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 12:43pm On Aug 12, 2018 |
earthrealm: Chief, I think we have hybrid 5kva specs that has upto 50-60a inbuilt cc designs.. If your budget is upto high end specs , simply opt in for Victron or Schneider brands .. Cheer's 2 Likes 1 Share
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Re: Solar Energy, A Complement To FTA by kiekie1(m): 12:45pm On Aug 12, 2018 |
nonoski: That's really deep #massive ![]() ![]() ![]() 2 Likes |
Re: Solar Energy, A Complement To FTA by chris81964(m): 12:56pm On Aug 12, 2018 |
nonoski: |
Re: Solar Energy, A Complement To FTA by bigrovar(m): 1:21pm On Aug 12, 2018 |
kiekie1: Yes o, usage matters a lot. 1 Like |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 5:00pm On Aug 12, 2018 |
kiekie1: Ahhha the hybrids...its this issue of resistive loads..that people hv varying opinions. Lemme research more |
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