Solar Energy, A Complement To FTA - Satellite TV Technology (89) - Nairaland
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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 viazi: 5:57pm On Mar 07, 2015 |
@ All, Can I get Magnum, Outback or Xantrex 5-10Kva original Inverter to buy in Nigeria? And how much is the cost? Urgent |
| Re: Solar Energy, A Complement To FTA by schneid: 7:08pm On Mar 07, 2015 |
Barezzi: For the batteries, what is the brand and how much. Also suggest controller capacity and no of panels. Thanks |
| Re: Solar Energy, A Complement To FTA by c0ogumo(m): 7:44pm On Mar 07, 2015 |
schneid: I will strongly advise you to go for a 48V system. I can help you get a 48VDC to 24VDC converter for the DC load. For the Charge controller, FM80 24V @ 80A = About 2000W for each charge controller Thats a waste of money if you go with 24V system. You could buy 2 x FM80 or Midnite Classic 150 Hope this helps |
| Re: Solar Energy, A Complement To FTA by schneid: 9:35pm On Mar 07, 2015 |
c0ogumo: Thanks. How much would that cost and what is the rating of the converter? Suggest the solar and battery sizing. I would have loved to use trojan 6v/410 for my design but the clients doesn't want it. So far, no one have mentioned if my calculations on sizing is the right procedure. Thanks as I hope for more options. BR |
| Re: Solar Energy, A Complement To FTA by pheleix: 10:00pm On Mar 07, 2015 |
schneid:You don't need to double the ba3 for the system voltage. From your calculations you need 38 and not 76 pcs of ba3 Total Ah/ba3 Ah = Total No of ba3s 1 Like |
| Re: Solar Energy, A Complement To FTA by c0ogumo(m): 10:20pm On Mar 07, 2015 |
@ Schneid I am sorry to say but this is not a DIY installation. Please consult a professional otherwise, you would be throwing money into the drain. We do not know how you come across the load you presented...therefore, cant really say if your calculation is right. Some calculations don't really apply in real world. You need to answer few questions before pointing you in the right direction. Please use my contacts below. Thanks. 1 Like |
| Re: Solar Energy, A Complement To FTA by schneid: 6:30am On Mar 08, 2015 |
pheleix: Thanks for the observation. |
| Re: Solar Energy, A Complement To FTA by schneid: 6:31am On Mar 08, 2015 |
c0ogumo: Pls check your inbox. Thanks. |
| Re: Solar Energy, A Complement To FTA by richmon74(m): 2:06pm On Mar 08, 2015 |
c0ogumo:Please can you emphasis this enough? I get so many wonderful calculations daily and they ask me to give them cost |
| Re: Solar Energy, A Complement To FTA by bintsdeyi: 2:08pm On Mar 09, 2015 |
Pls help me house I have 1200W Inverter, 120watts Battery, 100Watts mono solar panel. If I use generator to charge d battery, I could power a TV and a ceiling fan for abt 7hrs, but if I depend only on d solar panel to charge d battery for a whole day on a nomal sunny day like today in Lagos, I can't power d same TV set and a ceiling fan for more than an hour Pls can any one help tell me why I can't enjoy this solar panel? Thanks
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| Re: Solar Energy, A Complement To FTA by c0ogumo(m): 3:36pm On Mar 09, 2015 |
richmon74: I said Some calculations don't really apply in real world because we make so many assumptions when calculating Solar panel size and Battery bank size. 1. Power Consumption: The power consumption on a TV may be 250W. That does not mean that the TV would consume 250W continuous. It may reach 250W at start up and then back to 200W. Again for 30HP pump. We calculated that 1HP is 750W x 30 = 22500W. We dont know how old this pump is ....maybe the pump would consume more or less we don't know. We need to actually measure the consumption at startup and again after about 15 mins to actually figure out the consumption of the pump. Some people may the thinking its good to over-design the system, Yes its good for a DIY/Small project..... but for 30HP pump running 24/7 thats not a joke. 2. Battery Sizing So many labeled 12V 200AH batteries out there are just 150 or 160AH battery. I know the secret behind all these cheap batteries. The Chinese manufacturers add glass to the battery to make it the weight of a 200AH battery. How do we account for this in our calculation?.So people please watch out when picking your batteries. 3. Solar Panel sizing The installation of your panels is another critical thing. It has to be installed correctly to make sure there is no shade. shade could reduce the energy harvest by 50%. Its has to be at the correct angle. How do you account for a 250W panel putting out 150W in your calculation. 4. Wiring After doing a the calculations and thinking everything is correct, if you do not use the correct wire size, you wont get the desired output. To round it up, all the assumptions we make when sizing our system is good if we are installing a small system. For a very big installation, everything has to be right or we could be throwing millions in the drain. I hope this answer you question richmond74. Guys please drop your comments |
| Re: Solar Energy, A Complement To FTA by Akanniade(m): 4:31pm On Mar 09, 2015 |
c0ogumo: It wasn't a question. He was emphasising your point. Lots of folks don't do proper sizing mainly from financial constraint. I think it's time government do a mass importation of solar products for people to buy at discounted rates. 1 Like |
| Re: Solar Energy, A Complement To FTA by JUO(m): 4:41pm On Mar 09, 2015 |
bintsdeyi:1. you don't have a charge controller. 2. your solar Panel is too small. you need like 300w Panel to charge that battery to full and a good cc not toy 1 Like |
| Re: Solar Energy, A Complement To FTA by Akanniade(m): 4:44pm On Mar 09, 2015 |
bintsdeyi: It's still the classic mistake of improper sizing. You should first check the voltage drop between your panel and C.C. Check for shading , dust cover on the panel.Also that battery is small for the loads you want to run for 7hrs. 1 Like |
| Re: Solar Energy, A Complement To FTA by richmon74(m): 8:14pm On Mar 09, 2015 |
c0ogumo: I wasnt asking a question though. I was just saying you should emphasize enough. The actual application sometimes varies very well with the theoretical calculations. |
| Re: Solar Energy, A Complement To FTA by bintsdeyi: 9:01pm On Mar 09, 2015 |
JUO: Thanks JUO, lol, sorry u said that my charge controller is a toy, see me see wahala o, I'm in soup! but I spent N5,000 to get dt. Do u have any pic and d price of the one I shld get shld I decide to add 200panel to it. Pls I need price of 200w too. Thanks |
| Re: Solar Energy, A Complement To FTA by bintsdeyi: 9:14pm On Mar 09, 2015 |
Akanniade: Thanks @Akanniade, its a new panel. I don't understand what u mean by voltage drop btw panel and Charge Controller, I'm a novice in ds, all I do is charge and use whenever necessary. |
| Re: Solar Energy, A Complement To FTA by JUO(m): 4:33am On Mar 10, 2015 |
bintsdeyi:you can give this a try http://www.aliexpress.com/item/100-Real-MPPT-20A-Solar-Charge-controller-Tracer-2210RN-with-MT-5-remote-meter-20amps-100VDC/1932888890.html or http://www.aliexpress.com/item/20A-Tracer-2215RN-MPPT-solar-controller-PV-DC-150V-To-12v-24v-solar-battery-charger-regulator/758241221.html you will not regret it |
| Re: Solar Energy, A Complement To FTA by Akanniade(m): 12:03pm On Mar 10, 2015 |
bintsdeyi:Voltage drop may be due to your wire gauge being too small wrt distance from panel to C.C. It means you may be losing power along the cable. You should check the cable joints as well. |
| Re: Solar Energy, A Complement To FTA by LSBLeaky(m): 10:33pm On Mar 10, 2015 |
please can I get an external battery charger with high charging rate to charge my batteries so I can use it with my high wattage UPS |
| Re: Solar Energy, A Complement To FTA by earthrealm(m): 2:12pm On Mar 11, 2015 |
hello house?..anybody used/using this new luminous 2.5kva inverter?........i need to know the charging current, and also see the display in action, if it displays batt status, batt life remaining etc http://inverters.com.ng/Luminous_2_5kva_36V_Inverter-details.aspx am in a dilenma, my present 24v 1500kva inverter's runtime appears insufficient for my load wch hovers btw 120 to 370w max. so i want to upgrade to 3 or 4 batteries...but i feel the charging current of my present 1.5kva inverter is too poor to handle 4 units of 180amp/hr batt, so i need a smart upgrade, but my budget is tight and solar isnt an option. i know trojan or magnum will meet my need but from my research they are too expensive. |
| Re: Solar Energy, A Complement To FTA by richmon74(m): 8:55am On Mar 13, 2015 |
earthrealm: If charging current is your need you can use any of those china inverters that looks like MUST Power. Maybe a 2kw Voltron, Powerstar, etc. They have good charging algorithm and as long as you don't put too much demand on the as per power they are great inverters. One very important thing to note; NEVER LOAD THOSE INVERTERS BEYOND 50% OF THEIR CAPACITY. They don't function well beyond 50% of their rated load carrying capacity. The output waveform becomes very distorted and that increases consumption from your battery beyond the calculated figures. I'll find time to write comprehensively on this some day. |
| Re: Solar Energy, A Complement To FTA by kiekie1(m): 1:14am On Mar 14, 2015 |
HURRY HURRY HURRY !!!!!! 1. USA TROJAN T105-RE Premium Line Flooded Lead Acid Battery 6V (225AH)20hr Rate ..... @ 34k 2. USA TROJAN J185P-AC Signature Line Flooded Lead-Acid Battery 12V (205AH) 20hr Rate .... 65k POWERSTAR LIGHT 2kw 12v, 3kw 24v, 4kw 48v, 5kw 48v, 6kw 24v, 6kw 48v pure sinewave LCD power inverter " Inbuilt 35/70a Peak Charging Current" .... (In Stock) Latest Model EP SOLAR " i TRACER " charge controllers now in stock 60a 12v/24v/36v/48v MPPT CC with 150v max "Load control feature,inbuilt LCD display, internet kit, ethernet cords and cd rom ..... 90k EP Solar 30a PWM CC ..... 30k PERLIGHT SOLAR MONO & POLYCRYSTALLINE PANELS (12v 80w to 24v 290w) ...........now available All our products come with 1 year Warranty. CALL SIR FRANKIE NOW FOR SUPPLIES / WAYBILLS +2348135031951 .... THANKS
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| Re: Solar Energy, A Complement To FTA by omotech: 12:29pm On Mar 16, 2015 |
Xpert & gurus in d house, I am a newbie in dis sector but I need help of xpert. I want to buy electric charger that can charge (200amh 12vts bat3) properly, what type of charger will I go for? Where can I get it? How much will it cost? Thnxs |
| Re: Solar Energy, A Complement To FTA by rodgers: 12:55pm On Mar 18, 2015 |
I passed through a neighborhood here in Lagos and saw a mini wind generator and I have also seen one before in the Ikeja cantonment. Anyone with the experience of how effective this is in Lagos? |
| Re: Solar Energy, A Complement To FTA by chris81964(m): 1:18pm On Mar 18, 2015 |
rodgers: I have seen a few of them by the secretariat in Alausa. Lagos does have a lot of wind. I will suggest you do a hybrid if you are on the mainland. It will work if you do it as a combination
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| Re: Solar Energy, A Complement To FTA by chris81964(m): 1:27pm On Mar 18, 2015 |
obimind: Easiest way to tell is the price. A really good controller should cost you over N50k. If you want to splurge budget over N100k for a fairly good MPPT. Your batteries are worth it. |
| Re: Solar Energy, A Complement To FTA by chris81964(m): 1:31pm On Mar 18, 2015 |
bintsdeyi: Sorry for the late response. You are not giving us enough information. Tell us more about the charge controller. How many amps. How many hours are you charging the batteries with the panels for? What is the voltage of your 100 W panels. Bros on a more serious note. Your wiring is dangerous. No protections. |
| Re: Solar Energy, A Complement To FTA by JUO(m): 4:59pm On Mar 18, 2015 |
amazing device: say goodbye to overload, over-voltage. this device will trip off when you exceed the power and can only reconnect when the load is removed. i tried using electric iron on 2a/460w the device tripped. suitable for those who specializes in overload inverter. just attach it to the inverter output and your inverter will be saved from over-voltage and overload even in your absence http://www.aliexpress.com/store/group/Current-limiting-protective-device/613696_256224028.html
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| Re: Solar Energy, A Complement To FTA by durodee(m): 2:07pm On Mar 19, 2015 |
Anybody interested in appropriate cable size for your installation can check this site: http://www.solar-electric.com/wire-loss-tables.html Excerpts: Voltage Loss Tables for AWG Wire Wire Loss Tables for Solar Electric Systems Includes 12, 24, and 120 volt charts and a metric to AWG size conversion table. This is a five percent table which means at these amperage ratings at the listed distances, 5% of the power would be lost to resistance. Five percent is normally acceptable in low voltage systems, but if you want a 2% figure, divide the given distances by 2.5. For a 10% loss multiply the distance by 2. For distances at 48 volts, double the 24 volt distances for a 5 percent loss figure. For 240 volt 5% loss, double the 120 volt distances. These distances include the NEC requirement for current over sizing of 25%. Example: For a pump drawing 9 amperes at 24 volts, located 88 feet from the battery bank: look at the center table for 24 volts. In the far left column find the next number higher than 9 (which is 10) and follow that line across the table until you find a distance figure greater than 88. At the top of the column find the gauge of wire (#6) that should be used. This method insures that wire losses are kept to an acceptable level without spending too much money on extra-heavy cable. Using a heavier wire than indicated, however, will result in even higher efficiencies and we do sometimes invest in the next larger gauge. Wire can get expensive, and it may not be worth the money to get that last 1% if you have to go to a much larger wire size. Some of the newer grid tie systems inverters, such as the Sunny Boy, use up to 600 volts DC. Generally in these systems loss in wire is nothing to worry about. HOWEVER - you will have to be more careful about selecting and installing the wiring - high voltage DC is not something you want to do a 2nd rate wiring job on. Make sure the insulation is rated for 600 volts, and that there is no damage to the wire or insulation. All distances are in FEET Do not use any wire sizes that might fall into the red zone - this would exceed the amperage rating of the wire and it may overheat and burn. 120 Volts AC or DC Chart Amps in Wire Watts at 120V #14 #12 #10 #8 #6 #4 #2 1/0 2/0 3/0 2 240 422 656 4 480 187 328 516 6 720 141 225 328 562 8 960 103 159 272 422 666 10 1200 84 131 216 337 534 15 1800 56 84 131 225 356 562 20 2400 65 103 168 272 422 675 25 3000 84 131 216 337 543 30 3600 65.63 112 178 281 450 722 40 4800 84 131 216 337 543 675 50 6000 67 103 171 272 431 543 684 24 Volts DC Chart Amps in Wire Watts at 24V #14 #12 #10 #8 #6 #4 #2 1/0 2/0 3/0 1 24 169 262 412 675 2 48 84 131 207 337 532 4 96 37 66 103 169 267 6 144 28 45 66 112 178 282 8 192 21 32 54 84 133 216 10 240 17 26 43 67 107 169 270 15 360 11 17 26 45 71 112 180 289 20 480 13 21 37 54 84 135 217 270 343 25 600 17 26 43 67 108 172 217 274 30 720 13 22 36 56 90 144 180 228 40 960 17 26 43 67 108 135 171 50 1200 13 21 34 54 86 108 137 12 Volts DC Chart Amps in Wire Watts at 12V #14 #12 #10 #8 #6 #4 #2 1/0 2/0 3/0 1 12 84 131 206 337 532 2 24 42 66 103 168 266 432 675 4 48 18 33 52 84 133 216 337 543 675 6 72 14 22 33 56 89 141 225 360 450 570 8 96 10 16 27 42 66 108 168 272 338 427 10 120 8.5 13 22 33 53 84 135 218 270 342 15 180 6 8.5 13 22 35 56 90 144 180 228 20 240 6.6 10 16 27 42 67 108 135 171 25 300 8 13 22 33 54 86 108 137 30 360 6.6 11 18 28 45 72 90 114 40 480 8 13 21 33 54 67 85 These are one-way distances, measured from point A to point B. The out and back nature of electrical circuits has already been included. For PV arrays, figure the entire run, from the panels to the charge controller to the batteries Cross Reference of AWG (American Wire Gauge) Sizes to Metric (mm) AWG mm2 AWG mm2 AWG mm2 AWG mm2 30 0.05 18 0.75 6 16 4/0 120 28 0.08 17 1.0 4 25 300MCM 150 26 0.14 16 1.5 2 35 350MCM 185 24 0.25 14 2.5 1 50 500MCM 240 22 0.34 12 4.0 1/0 55 600MCM 300 21 0.38 10 6.0 2/0 70 750MCM 400 20 0.50 8 10 3/0 95 1000MCM 500 |
| Re: Solar Energy, A Complement To FTA by olak3: 3:00pm On Mar 19, 2015 |
I have one 2000w /24v Modified Sine Wave Power Inverter For SALE or EXCHANGE for similar rate with 12V The brand name "Demuda" Technical Details Model No. DMD-2000W/24V/F/A Size 275 x 165 x 125mm Weight 4.5Kg Certificate CE and ROHS DC Input section DC Input Voltage 24V DC Operating Voltage 21-29V DC Low-voltage Protection 18.5-20.5V DC Low-voltage Alarm 19.5-21V DC Over-voltage Protection ≥29V Fuse 35A*3 Quiescent Current ≤1.6A AC input Section AC input voltage 220v AC inout frequency 50Hz AC operating voltage 170-250v AC Low-voltage Protection ≤150v AC over-voltage Protection ≥250v Ac input Frequency 50Hz Working and Protection Transfer Efficiency ≥90% Overload Protection 2000W--2400W Short-circuit Protection Yes Start soft-start function Operating Temperature -10°C--+50°C Temperature Protection +60°C--+70°C Green LED Indicator Green Light (Working),Flash(Overload Protection) Red LED Indicator Red Light(Error Protection) Other Warranty 2 years Packing Color box packing or skin packing BRAND. NEW If interested call 08153802255 or wattsap |
| Re: Solar Energy, A Complement To FTA by olak3: 11:41am On Mar 20, 2015 |
earthrealm:I have 2kw /24v Modified Sine Wave Power Inverter For SALE The brand name "Demuda" Technical Details Model No. DMD-2000W/24V/F/A Size 275 x 165 x 125mm Weight 4.5Kg Certificate CE and ROHS DC Input section DC Input Voltage 24V DC Operating Voltage 21-29V DC Low-voltage Protection 18.5-20.5V DC Low-voltage Alarm 19.5-21V DC Over-voltage Protection ≥29V Fuse 35A*3 Quiescent Current ≤1.6A AC input Section AC input voltage 220v AC inout frequency 50Hz AC operating voltage 170-250v AC Low-voltage Protection ≤150v AC over-voltage Protection ≥250v Ac input Frequency 50Hz Working and Protection Transfer Efficiency ≥90% Overload Protection 2000W--2400W Short-circuit Protection Yes Start soft-start function Operating Temperature -10°C--+50°C Temperature Protection +60°C--+70°C Green LED Indicator Green Light (Working),Flash(Overload Protection) Red LED Indicator Red Light(Error Protection) Other Warranty 2 years Packing Color box packing or skin packing BRAND. NEW If interested call 08153802255 or wattsap |
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