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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2276014 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 makavele: 10:19am On Jan 06, 2018 |
Ijeoma660: Like the initial poster said, there should be a rating of the panels. . but if the stickers have peeled off; do a benchmark test . . to give you rough estimates . . .for Voc and Isc . . . in any case, if the panels will be connected in series .. a 4mm to 6mm cable will suffice due to low current. They can be connected via their MC4 cables if present . . or you can improvise if absent Battery connect/interconnect cables should be at least 16mm (industry standard) p.s.: 250 x 4 = 1kwp panels is just sufficient enough to bring your batteries to float just around 1pm or so . . if your batteries are discharged to 50% during the night . . . Personally for me, I love to see float around 11am to 11.30 am latest |
Re: Solar Energy, A Complement To FTA by bigrovar(m): 11:14am On Jan 06, 2018 |
DMerciful: The above plus physics also comes to play. There is no way 250VOC panel on a mppt charger would charge a 12v battery bank as efficiently as it would charge a 48 or even 96v battery bank. with the 250v a lot of work is required to down convert to battery voltage of 12v, and more work means more energy.. more energy used in the down conversation process means less for the battery. it is just more efficient to leave the PV VOC to be about twice the battery voltage. Your mileage my differ based on the design of the CC. Episolar as stated above prefers a 3x3 because of its huge toroidal transformer and excellent heat dissipation of it's controllers. However Victron energy works best when the panel voltage is about double the battery nominal voltage. It is not written on any stone (rarely is anything nowadays) but it is just best practice for getting the most from your system. 1 Like |
Re: Solar Energy, A Complement To FTA by bigrovar(m): 11:21am On Jan 06, 2018 |
Ijeoma660: for cable service you need to calculate voltage loss there are sites on the internet where you can calculate this by putting in the expected voltage from the panel to cc and from cc to battle. Standard practice is to ensure voltage loss between PV and CC stays between the 1-5% ball pack and battery to cc should not be more than 2%. Like Oga makavele said, do a test to figure out the VOC of the panel and its ISC. You can always use a multimeter just make sure you do your test around 12 noon on a sunny day. Test all your panel for VOC and ISC and then connect them a CC and battery and test the VMP and IMP. this should give u a close indication on the size of the panel. whatever u get, make sure it is original flexible wire for solar. I think Frankie sells some so U can reach out to him 1 Like |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 9:21am On Jan 07, 2018 |
sinistrian: Hello, contact us for solar cables & accessories . Smartcell global services 081-350-31951 |
Re: Solar Energy, A Complement To FTA by idsolar(m): 3:45pm On Jan 07, 2018 |
Hello house. I still have these 2 charge controllers for sale. 1.Roysolar charge controller 12/24v 60a 2. Roysolar 12/24v 20a Interested? Call/sms 08033735359 |
Re: Solar Energy, A Complement To FTA by idsolar(m): 3:51pm On Jan 07, 2018 |
Hello house. I still have these 2 charge controllers for sale. 1.Roysolar charge controller 12/24v 60a 2. Roysolar 12/24v 20a Interested? Call/sms 08033735359, |
Re: Solar Energy, A Complement To FTA by olagunju2000: 5:41pm On Jan 07, 2018 |
olagunju2000: Finally i have something to report on my setup. I have changed the Master CC to Magnum PT100 CC. I have also changed my cable to 16mm tiny flex. I got a fairly used Magnum 4.3kw inverter as well. My daily harvest improved from 6.1kwh in November to 14kwh in January. Although weather may have played so part in the increment. I believe that the new charge controller and cable change play significant role 5 Likes
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Re: Solar Energy, A Complement To FTA by DUNKA(m): 6:17pm On Jan 07, 2018 |
olagunju2000:Nice one ![]() |
Re: Solar Energy, A Complement To FTA by garbamaza: 6:59am On Jan 08, 2018 |
Good morning all, I need fairly used 250w or 300w solar panels. |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 7:28am On Jan 08, 2018 |
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Re: Solar Energy, A Complement To FTA by kiekie1(m): 8:04am On Jan 08, 2018 |
garbamaza: Hello, hope you finally procured the fairly used poly panels sampled by Ola 1 Like |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 8:05am On Jan 08, 2018 |
garbamaza: Sorry i have exhausted mine .. Cheer's |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 10:11am On Jan 08, 2018 |
My Oga. You have thrown some serious cash and resources at this problem. I salute your determination and I'm happy at the outcome you have achieved - 14kwh yield out of a 4.5kw solar array is a decent result considering the harmattan haze that is just now lifting off. Once we get into the times of good sun, you should be able to achieve 17kwh to 23kwh daily average if your power consumption stays as it is currently. I have a sneaky feeling you already got good results once you ported to the Magnum PT100 CC and all you lacked was a means to measure your solar yield because the Magnum monitoring interface required you to also have a Magnum inverter. Regardless, you can not go wrong with the choices you have made - the Magnum Inverter and CC lines are well respected products and with good reason too. Please observe battery DoD rules (no more than 30-50% of battery AH capacity consumed daily) and ensure your batteries get a full charge and move into 'float' daily and you should get many good years of service from them. olagunju2000: 1 Like |
Re: Solar Energy, A Complement To FTA by JUO(m): 12:49pm On Jan 08, 2018 |
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Re: Solar Energy, A Complement To FTA by earthrealm(m): 6:07am On Jan 09, 2018 |
DMerciful: nice. where and how much did u buy the epsolar ebox?... also the internet dongle, how is it powered. thinking of using such to monitor my villa set up remotely 1 Like |
Re: Solar Energy, A Complement To FTA by babniyen(m): 6:17am On Jan 09, 2018 |
Hello house. Please assist with this challenge. I have a 12V dc load drawing 6.3A, a 200ah battery, a pwm charge controller and 290 watt mono panel. Connected it up but i noticed that the battery is not getting charged. Please assist. |
Re: Solar Energy, A Complement To FTA by funstufz(m): 7:24am On Jan 09, 2018 |
Everything here sounds spanigerjam.... simply to say, am a Mewbie here.. Any help ![]() |
Re: Solar Energy, A Complement To FTA by DUNKA(m): 7:35am On Jan 09, 2018 |
funstufz:go and read from page 1 it will greatly assist you 3 Likes |
Re: Solar Energy, A Complement To FTA by efuro(m): 9:32am On Jan 09, 2018 |
earthrealm: Thoughtful. Villa setup always need remote tweaking too. I wonder how he handled 3 - 5volts mismatch of remote devices. Sure to get help from "meciful" legend. 1 Like |
Re: Solar Energy, A Complement To FTA by efuro(m): 10:46am On Jan 09, 2018 |
babniyen: Attach pix of the setup. Panels, cabling, breaker, pwm and ur vpower battery. We are not magicians. 2 Likes |
Re: Solar Energy, A Complement To FTA by makavele: 2:35pm On Jan 09, 2018 |
babniyen: Not getting charged at all ? OR Not getting charged adequately ? |
Re: Solar Energy, A Complement To FTA by babniyen(m): 5:22pm On Jan 09, 2018 |
Sorry Not charging adequately. The voltage keeps dropping. The installation is still temporary, for proof of concept. Thanks makavele: |
Re: Solar Energy, A Complement To FTA by babniyen(m): 5:40pm On Jan 09, 2018 |
Will attach the pictures when i get home. Thanks efuro: |
Re: Solar Energy, A Complement To FTA by makavele: 6:29pm On Jan 09, 2018 |
babniyen: You are still confusing us. What do you mean the voltage keeps dropping? If the voltage is dropping during charge; then it means the charge controller and/or panel isn't supplying the necessary charge But if the voltage drops after a full day's charge; then check your battery. please try to be explicit. |
Re: Solar Energy, A Complement To FTA by babniyen(m): 6:40pm On Jan 09, 2018 |
It is dropping during charging with the Load on as well. makavele: |
Re: Solar Energy, A Complement To FTA by DMerciful(m): 6:47pm On Jan 09, 2018 |
It uses a SIM. It has a charger and can also be powered from the batteries. Bought it from a seller on Aliexpress.Ningbo Zhenhai Geebo Electronics, check this guy on Ali express.com earthrealm: 1 Like |
Re: Solar Energy, A Complement To FTA by makavele: 7:12pm On Jan 09, 2018 |
babniyen: This is what I am saying . . The panel and/or charge controller isn't working . . . and you think it is working . . . so you connect the load . . . . the battery keeps dropping volts until it gets flat . . But if the panel and/or controller is working, then battery is bad . . replace it So isolate the problem one after the other . . . test panels, check wiring, test charge controllers and check your battery too one amongst them is the judas come to think of it . . your single panel on a PWM controller "might" just be insufficient to charge that 200Ah battery to full in one single 'Sun-day" (not Sunday) 1 Like |
Re: Solar Energy, A Complement To FTA by Dam5reey(m): 11:06pm On Jan 09, 2018 |
babniyen: If your system is pure solar (off grid), then 140 + 150 watt panels will damage the battery due to insufficient charge current... Practically you can only get 50-60AH from your panels on a good day For hybrid system like mine, I do have power most of the time so my 220 Watts panel is just a supplement... To keep my battery voltage High during the day... I run my inverter 24hours/7day For 200ah do not load more than 100- 120watts Recommended solar for off grid is 600watts... I do see some seller misleading people buy selling a system with 100Ah battery with 130watts panel and tell you you will have 24 hours light... ![]() 1 Like |
Re: Solar Energy, A Complement To FTA by makavele: 11:26pm On Jan 09, 2018 |
Dam5reey: Of course, you will have more than 24 hours light sef; sheybi na just connect one 3W bulb . . dazall ![]() ![]() ![]() 1 Like |
Re: Solar Energy, A Complement To FTA by Dam5reey(m): 11:35pm On Jan 09, 2018 |
makavele: Obviously it's not 3watt bulbs but energy efficient 9watt type... The first step when going into solar is power audit... You miscalculate you will waste money... ![]()
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Re: Solar Energy, A Complement To FTA by makavele: 11:42pm On Jan 09, 2018 |
Dam5reey: I have dozens of this in my house . . Recently, I had to replace all the bulbs in my house with the 5W cool-white LED bulbs . . . 45 in all (minus 14 x 3W spotlights) Thats 45 X 5 watts (max) = 225W if they are turned on concurrently Cos I came to realize it is cheaper to save energy than it is to generate it. 7 Likes |
Re: Solar Energy, A Complement To FTA by Dam5reey(m): 11:49pm On Jan 09, 2018 |
makavele: Before buying any electronic. I look for power ratings and sellers will be wondering why... ![]() 1 Like |
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