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Nairaland Forum / Nairaland / General / Properties / Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS (59070 Views)
75 Plots For Sale With C Of O In Ibadan For 350k Per Plot. (full Pictures) / Before & After: Renovation/Remodelling Jobs Full Of Surprises / Need To Drill Quality Boreholes! (2) (3) (4)
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Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by Enosa1(m): 8:34am On Dec 01, 2014 |
Thanks again for your suggestions and recommendations last time(concerning the inverter charging circuit that got damaged). I've not been too active for sometimes, but back now. keep up the good work. |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by DanielUnilag: 4:53pm On Dec 18, 2014 |
Geek007: Now guys, this info is very important. |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by DRealGeesam(m): 10:07am On Dec 22, 2014 |
DanielUnilag:Hello daniel, i'm sorry i've not updated this thread in a while. Let me now answer his question |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by DRealGeesam(m): 10:11am On Dec 22, 2014 |
DRealGeesam:Hello daniel, this is the answer i gave to his question. Let me know if there is any other thing you want to know. @danielunilag Note: the cost quoted is basically for getting the solar panels controllers... Not installation. And price varies depending on market forces. Thanks |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by DRealGeesam(m): 11:39am On Jan 15, 2015 |
Been a while ![]() |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by DRealGeesam(m): 9:43am On Jan 16, 2015 |
DRealGeesam:Yh |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by DRealGeesam(m): 10:42pm On Feb 26, 2015 |
...Be back soon... |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by DRealGeesam(m): 10:41pm On Feb 27, 2015 |
DRealGeesam:...Loading... 1 Like |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by confluence: 4:03am On Mar 09, 2015 |
@the realgeesam, Thanks for all your effort and assistance, the borehole water is now cleaner than before, after several days of pumping it out, |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by DRealGeesam(m): 6:49am On Mar 16, 2015 |
confluence:YOU ARE WELCOME SIR ![]() |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by smsdigito: 5:08pm On Mar 20, 2015 |
i think i will love this. How much is it within Lagos?
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Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by uzoexcel(m): 9:32pm On Mar 20, 2015 |
followin this threead ![]() ![]() |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by schneid: 12:07pm On Mar 28, 2015 |
I stumbled on this thread today and I am so impressed by the op's wealth of expertise on this subject. I read each post from page 1-10. Good job. I do solar stuffs too but I can agree u r d boss. I read where you mentioned where solar brand name should not be the real deal but the chip manufacturer. I rely so much on solarworld module (255watt @N65k), outback charge controller, morning star. From your experience, kindly recommend a cheaper alternative in terms of cost without compromise to quality for the items mentioned. Products/prices/supplier? Email: aphizaa@gmail.com. thanks as I expect feedback |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by kiekie1(m): 12:36am On Mar 29, 2015 |
schneid: Its all self explicit esp if you do good research in the open market. Solar world panel is good bt hope you know its still China manufactured but of thick and standard quality ? I have used Joy , Yingli, Perlight solar modules and they all work very well. Morningstar and outback are good but you can still get same result @ affordable prices with brands like Ep solar, Provolt mppt/pwm charge controllers . The EP Solar "I TRACER" 60a mppt controller is just 95k to 100k compared to Morningstar price and has excellent features like: -inbuilt LCD display, -high efficiency energy harvest with advanced mppt algorithm -dual core (ARM CPU+DSP) control architecture -run data and event recording -multi phase synchronous rectification tech realizing peak conversion efficiency 98% -high reliabilty including reverse connection, over current and load short protection etc -diversified load control mode -monitor software supplement and firmware update -extensive communication capabilities (RS232, RS485 with modbus protocol, CAN bus extendable) I have few stock now @ my Ikeja Lagos outlet namely; *EP Solar 60a MPPT .... @ 95k *Trojan USA flooded J185p batteries 12v 205a .......... @ 65k *Bluegate Pure sinewave power Inverter 3.5kva 24v with lcd display and selectable charging current 70a... #last stock *Perlight and Joy Solar panels For best affordable prices,contact Smartcell Ventures,Lagos Nigeria. Simply call Sir Frankie "08135031951" for purchase,fast delivery and waybills .. Thanks ! |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by schneid: 12:30pm On Mar 29, 2015 |
Thanks. Noted |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by Barezzi(m): 4:44am On Mar 30, 2015 |
DRealGeesam:Interesting thread... For the yingli panels, i'll prolly need roof space the size of a football field to build a 4kw array... over 20 panels!! ![]() Can u post the spec sheet for the yingli panels? |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by DanielUnilag: 7:45pm On Apr 08, 2015 |
Barezzi:Can you vouche for ds yingli panels and where can I get one? |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by DanielUnilag: 9:43am On Apr 09, 2015 |
DRealGeesam:@DRealGeesam, I av to say u r d best but I do av some criticisms on ur calc & I hop to mk dem constructive. Mayb it'll help if u can demystify d following query; 1. Aw did u arrive at 0.64kva? Was it based on chrgn current reqt or power reqt? 2. D solar circuit is DC so I fink 0.64kva shld b 0.64kw 3. Are d 80w panels arranged in series? If so... 17.5x8 = 140v 4. Thus, Wot is d rating of d mppt chrg controller if u proffer d same chrg controller for both 0.64kva & 1.42kva solar system? 5. Do d cost u enumerated above cover delivery & installation? Thks. 1 Like |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by geesampower(m): 9:13pm On Apr 09, 2015 |
DanielUnilag:Nice questions ![]() Lets look at it together 1. How did i arrive at 640w (0.64kw) for the charging? Answer for 4 200ah batteries of 12v each battery. Right? So what is the total capacitative power of the batteries. Power= Current X voltage P=200ahX4X12= 9600Wh Note: a good invert will shut down when the battery gets to 11.4V this is 50% of the battery charge. So our drained batteries still has 4800Wh left in it. Hope u get it so far? Our aim is ONLY to charge this battery, which means replacing the used 4800Wh Having an array that gives you 640W output an a day of good sunshine of 8hours that will give you 5120Wh in a day. ![]() So that is how i got .64kw o 2. YOU ARE RIGHT!!! ![]() 3. Haba! Why should u connect it in series? Bros! U and i know the answer to this nau ![]() 4. 30amps is enough Thank you. This is drealgeesam |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by davinchi(m): 10:45pm On Apr 09, 2015 |
DRealGeesam:What does it cost to have a 3.5 or 5 KVA Solar dependent light? I need the ABC's of everything I need and what load can it carry? Thanks |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by geesampower(m): 3:09pm On Apr 12, 2015 |
davinchi:ABC's may not be possible now. But there are lots of configurations especially for the panels and the batteries depending on how much you load it per time. But a good setup will cost about 1m for 3.5 kva to 2m for 5kva. How you intend to use it could actually is actually a big factor. This is drealgeesm |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by DanielUnilag: 7:28pm On Apr 12, 2015 |
geesampower:@darealgeesam, sir, I don't mean to sound patronizing but I'm totally flabbergasted at ur wealth of experience. Keep up d good work. But I stil a notch unresolved. U stated d 80w panels will b connect in 4 strings of 2 panels connect in series. I.e. voltage = 2x17.5=35v. I tot d system was a 48v, 4 batts inverter set up. Or am I mistaken? |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by geesampower(m): 9:18pm On Apr 16, 2015 |
DanielUnilag:My dear daniel, i am sorry for this late reply. Seen this question since u posted it but i have been sneaking in and out of nairaland. To ur question. Have u ever wondered y solar panels meant for 12 systems have an Voc (open circuit voltage) of at least 17v? That is the key question. The reason is because of the way technology has be homogenized. The manufacturers of solar panels, charge controllers,pv inverters, did not choose that standardization for fun. What you don't know obviously is. That your solar panels are EXACLY like you batteries. The only difference is the source of energy which is the sun. Now when u connect 2 batteries together, one of 13v and another at 11v. What happens is the battery of 13v drops to 11v immediately (as long as they are connected) and starts charging the battery of 11v in an instant the both can equilize at a voltage between 11v and 13v but will NEVER be 13v. Same with when a solar panel is connected to a discharged battery. It will never charge it at 17.5v. But the battery will surely over charge after a while because the panel will keep supplying charge to the battery until it attains 17.5v, obviously this is far more than a 12v battery shld take, because a 12v battery is 100% full at 13.4v. That is why you shld use a charge controller for charging. Once it is at 13.4v the charge controller will only supply a float charge to the battery so it wont over charge. There is a lot to say to this but the summary is 17v is the standard volts solar panels are designed to for 12v systems and this helps them give a good output, it will never charge at 17v especially with a charge controller. |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by geesampower(m): 9:22pm On Apr 16, 2015 |
There is so much to talk about. PWM and MPPT controllers is something i feel tempted to talk about but not now. Will like us to look into the max working voltages they work with and the stages of charging they both give And why their efficiencies are significantly different |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by Barezzi(m): 10:07pm On Apr 16, 2015 |
geesampower:Talk am, I am interested in reading your views on the matter... |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by geesampower(m): 10:28pm On Apr 16, 2015 |
Barezzi:Boss! Hehehehe No time for typing much tonight jare. How far with the yingli panels? Been expecting feed back |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by Barezzi(m): 11:14pm On Apr 16, 2015 |
geesampower:Ah! Not forgotten bruv, i'm at work now, i'll call you soon. |
Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by geesampower(m): 6:11pm On Apr 21, 2015 |
geesampower:Charge controllers Must you use them?... Yes and no Yes for every commercial installation No for those tweaking and know what they are doing. You love yourself ? Use them. Just met a man that does not use charge controllers. Smh I reserve my comment. This solar biz, there is so much to talk about. New thread loading... My respect to Mr. Femi Ayeni and mr. Richmond. |
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