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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2323887 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 DMerciful(m): 6:17am On Jun 09, 2017 |
Ground mounting is awesome....a lot of advantages. Now, the sun moves from North to South on 6months basis so any experiment/observation must be done for 12months when the sun must have moved from south to north and back and plotted on a graph so as to know the performance versus the sun longitudinal movements. The panels gives the maximum possible harvest when they are at 90° to d sun at any instantaneous time. If you leave ur panel they way they are and observe, I promise you within 6months u'll see about 14.7amps again. You can also research d effect of temperature on harvest. Oshomo12: |
Re: Solar Energy, A Complement To FTA by DMerciful(m): 6:20am On Jun 09, 2017 |
6° is a lot if you're coming from a wrong angle installation towards the right angle installation. If ur point of application of a force on a body is 6° and you increase by 6 to 12°, check d resultant force if d resultant is not reduce considerably. That's how light ray behave! Oshomo12: |
Re: Solar Energy, A Complement To FTA by Oshomo12(m): 6:30am On Jun 09, 2017 |
DMerciful:Not that, this is what I saw, u said not possible. So I agree with u. But, if it's just as little as 5% of loss due to spacing, why trouble urself spacing? One can leave with that!" |
Re: Solar Energy, A Complement To FTA by Oshomo12(m): 6:35am On Jun 09, 2017 |
DMerciful:Sorry for not making myself clearer, Feb was exactly one year I installed those panels, and 9.4amps was the max seen within the period of a year. I did the test this year Feb. I have a record of the max of each month thru out this period. I take my records between 12:10-2:20pm |
Re: Solar Energy, A Complement To FTA by DMerciful(m): 7:18am On Jun 09, 2017 |
OK....will check this to confirm how much improvement with temperature reduction.'weldone Oshomo12: |
Re: Solar Energy, A Complement To FTA by BRIGHTSOLAR(m): 8:31am On Jun 09, 2017 |
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Re: Solar Energy, A Complement To FTA by BRIGHTSOLAR(m): 8:31am On Jun 09, 2017 |
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Re: Solar Energy, A Complement To FTA by bodeface: 11:12am On Jun 09, 2017 |
mcTrinity: @mcTrinity I have got the SUNTECH 310W Poly if you are interested, let me know. |
Re: Solar Energy, A Complement To FTA by nene2016(m): 11:58am On Jun 09, 2017 |
You have a mail boss. Refa: |
Re: Solar Energy, A Complement To FTA by Feshizzy(m): 2:57pm On Jun 09, 2017 |
Who could help point me in the direction/video on insulating lighter load to th inverter from a distribution board DB, I would be very grateful, Thank you! 1 Like |
Re: Solar Energy, A Complement To FTA by mcTrinity(m): 3:21pm On Jun 09, 2017 |
bodeface:price? |
Re: Solar Energy, A Complement To FTA by Empiree: 1:53am On Jun 10, 2017 |
Seun, the highlight doesnt work anymore. I have noticed this for few months now or is it just me?. By highlight i mean to enlarge text (Font size). Whats going on please? Let's see if this work. Example: [size=15pt]Seun[/size] See that?. It doesnt work |
Re: Solar Energy, A Complement To FTA by Chuckdee(m): 7:30am On Jun 10, 2017 |
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Re: Solar Energy, A Complement To FTA by bigrovar(m): 8:04am On Jun 10, 2017 |
bigrovar: So it turns out these freezer settles down real quick. I brought my watt meter from work and after an initial starting stage surge of 240w (not to be confused with start up surge) it settled down within 30 minutes to 115w which is quite OK for me. 2 Likes |
Re: Solar Energy, A Complement To FTA by Oshomo12(m): 8:56am On Jun 10, 2017 |
bigrovar:That's good, from 240w to 115w within 30mins. It quite efficient, thanks for reporting back, cos fear don de catch me. I have the same freezer too. |
Re: Solar Energy, A Complement To FTA by bodeface: 9:36am On Jun 10, 2017 |
mcTrinity: @ mcTrinity Sorry getting back to you late, the price is 80K, let me know quantity, might be able to get better offer. |
Re: Solar Energy, A Complement To FTA by mcTrinity(m): 12:34pm On Jun 10, 2017 |
bodeface: thanks... you've got contact? |
Re: Solar Energy, A Complement To FTA by davodyguy: 3:08pm On Jun 10, 2017 |
Hello house. Please advice. Between Mppt and PmW charge controller, which should I use and why? Thanks |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 4:13pm On Jun 10, 2017 |
bigrovar: how many liters is it?. swapped the samsung for an LG 245LITER freezer, it frosts from top to bottom, unlike the 260L samsung, initial readings after 10mins was about 130w, but subsequent readings after power outage is abt 115w after 10mins....it dropped as low as 96w after being on for >24hrs. It has a 1amp energy nameplate @davodyguy, you may have the google it or scroll thru the middle of this thread. this issue hv been analysed several times davodyguy: |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 4:32pm On Jun 10, 2017 |
kiekie1: Hurry while stock lasts ... |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 4:38pm On Jun 10, 2017 |
bigrovar: This 374L made in Romania freezer produces Frost / block like crazy and is also energy efficient.. You guys can give it a try OK ! 1 Like
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Re: Solar Energy, A Complement To FTA by durodee(m): 5:31pm On Jun 10, 2017 |
Bought where pls? kiekie1: 1 Like |
Re: Solar Energy, A Complement To FTA by Ferdiwar: 7:17pm On Jun 10, 2017 |
kiekie1: Beko is a well trusted name when it comes to freezers and to me it is still the best in the market so far. 1 Like |
Re: Solar Energy, A Complement To FTA by DMerciful(m): 7:57pm On Jun 10, 2017 |
Use MPPT......Mppt harvest Ur 25%-30% more than pwm. Its the latest on charge controller technology... Its like Comparing CNN with NTA davodyguy: |
Re: Solar Energy, A Complement To FTA by davodyguy: 8:26pm On Jun 10, 2017 |
DMerciful:Thanks. I was told to use PMW, since I don't inter to use more than 4 panels |
Re: Solar Energy, A Complement To FTA by DMerciful(m): 8:30pm On Jun 10, 2017 |
Unless u re OK to loose 30% davodyguy: |
Re: Solar Energy, A Complement To FTA by Dam5reey(m): 8:33pm On Jun 10, 2017 |
davodyguy: If you system is above 150W panel... Think MPTT... Alright let's start with conversion from panel to battery Efficiency.. PWM is 80% while MPTT is close to 100% If a panel supply 100W PWM gives 80w... Cos you will have same current.. but your Extra voltage is wasted.. MPTT converts extra voltage to Current... 2. Cable sizing, example 3 150watts panel is 450watts. if you use PWM higher cable guage is required you will use parallel connection meaning increase in current.. 18V @ 25.2A 8awg is required with MPTT you can connect 3 150watts in series that will make 54V @ 8.4A you can use the 12awg or 10awg 2 Likes |
Re: Solar Energy, A Complement To FTA by bodeface: 8:36pm On Jun 10, 2017 |
mcTrinity: Suntech 310W Poly @ 80K, large purchase subject to discount. |
Re: Solar Energy, A Complement To FTA by Dam5reey(m): 8:41pm On Jun 10, 2017 |
davodyguy: Alright.. don't complain about performance after installation sha.... What is the PV system watt and battery system Voltage? The installer might have his points.. What other points did he mention aside 4 panels? |
Re: Solar Energy, A Complement To FTA by davodyguy: 8:51pm On Jun 10, 2017 |
Dam5reey:[quote Dam5reey:See my response below Inverter is 1000 watts 12 v 2* 200amps battery Connection in parallel Intend to use 4*200 watts mono Frame panels You guys can advise better Thanks all DMerciful: |
Re: Solar Energy, A Complement To FTA by Dam5reey(m): 9:30pm On Jun 10, 2017 |
davodyguy: In this case.. PWM will be a waste of resources.... For better efficiency.. if you are not looking at cost go 24V battery Voltage system with 40A MPPT controller.... Your 800W panel will provide approx. 60A @ float charge of 13.8V. you will spend more in this case... Since 60A MPPT controller is required... Go with first option.. otherwise you can go with your installer, |
Re: Solar Energy, A Complement To FTA by pranil(m): 11:49pm On Jun 10, 2017 |
DMerciful: You can calculate the expected performance of your panels and then compare to the field readings. PVGIS gives very accurate values to the P10 probability[sup][/sup] ( +-10 % ) within actual prediction http://re.jrc.ec.europa.eu/pvgis/apps4/pvest.php?lang=en&map=africa |
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