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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2296434 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 DUNKA(m): 4:06pm On Feb 28, 2015 |
@Richmon thank u. I have received d items at Jos purchased from you. Hope 2 do more business with u very soon. Regards |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 9:40pm On Feb 28, 2015 |
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Re: Solar Energy, A Complement To FTA by richmon74(m): 12:09am On Mar 01, 2015 |
DUNKA: Oh! I didn't even know you were DUNKA. Thanks for your business though |
Re: Solar Energy, A Complement To FTA by bodejohn(m): 11:07am On Mar 01, 2015 |
Second Ts-Mppt-45A and Ts-M-2 successfully commissioned. See picture below. Both CCs pumping juice into my re-arranged 36v 450Ahr battery bank. Next upgrade will be a complete rearrangement of the components for esthetics and ease of maintainance. Thanks to @c0ogumo for the supply of the Tristar CC.
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Re: Solar Energy, A Complement To FTA by jukeblam(m): 3:40pm On Mar 01, 2015 |
@everyone, Could there be any possible issues arising due to storage of working Trojan batteries outside a building, exposed to sun and rain? Or they must be protected from the elements? |
Re: Solar Energy, A Complement To FTA by Barezzi(m): 7:08pm On Mar 01, 2015 |
jukeblam:See am here... http://www.trojanbattery.com/pdf/TRJN0109_UsersGuide.pdf |
Re: Solar Energy, A Complement To FTA by jukeblam(m): 8:42pm On Mar 01, 2015 |
Barezzi: Thanks! |
Re: Solar Energy, A Complement To FTA by bodejohn(m): 4:35pm On Mar 05, 2015 |
I am going completely off grid (Nepa abi na Phcn switched off) till the end of 2015. I want to prove to madam that "I have fully delivered my promise on power"...LOL The Count up Started on February 15th, 15 days downed already... Who is joining me? |
Re: Solar Energy, A Complement To FTA by JUO(m): 4:58pm On Mar 05, 2015 |
my dream. we dey back dey come |
Re: Solar Energy, A Complement To FTA by Barezzi(m): 5:15pm On Mar 05, 2015 |
Chai!! so no a.c for you till year end |
Re: Solar Energy, A Complement To FTA by bodejohn(m): 6:30pm On Mar 05, 2015 |
Barezzi: It rarely gets hot here at night but even if it does, a cold shower and my standing fan will do just fine...#ihavedecided 2 Likes |
Re: Solar Energy, A Complement To FTA by tivta(m): 7:38pm On Mar 05, 2015 |
bodejohn:. What state are you in? |
Re: Solar Energy, A Complement To FTA by bodejohn(m): 8:19pm On Mar 05, 2015 |
tivta: I am in Ibadan, the Oyo state capital. My area is general damp. I share boundary with a seasonal stream. |
Re: Solar Energy, A Complement To FTA by tivta(m): 8:47pm On Mar 05, 2015 |
bodejohn:. Ok, here in lagos the temperature is very hot. |
Re: Solar Energy, A Complement To FTA by TSHIRT2: 1:01pm On Mar 06, 2015 |
bodejohn:Though i have 500w panel and since january 1st 2015 uptill today it has serve my light,tv,fan,blending needs,most expecially weekend 12hrs tv and decoder need.The CDA is begging me to connect to phcn because of d money they will get 4rm me and my has always been that rather than pay them i will use d money to add 2 my panel,so off grid dey sweet belle |
Re: Solar Energy, A Complement To FTA by tundebabzy: 1:55pm On Mar 06, 2015 |
bodejohn:Off-grid is still dream land for me. I was charging my batteries with phcn before now. It worked well from last quarter of last year till February. Now 4 hours of light isn't even assured and gen has had to cut short its sabbatical leave. Its my inverter that is now on sabbatical. |
Re: Solar Energy, A Complement To FTA by schneid: 8:23am On Mar 07, 2015 |
Top of the morning to you solar geniuses in the forum. Kindly view my sizing below and assist where possible. Power requirement= 43200WH At 97% efficiency/losses = 44536.08WH Using 24DC system, AH required= 44536.08WH/24 = 1855.67AH At 50% DOD = 3711.34AH At 2days autonomy = 7422.68AH Battery selection Using 200AH batteries = 7422.68/200 = 37.11 approx 38pcs . For 24 system (2 batteries in series) = 76pcs Solar sizing Power requirement = 43200WH Assuming 5hrs of sunlight 43200WH/5 = 8640W Using SW255w panels= 8640/255 = 33.8 = 34PCs Solar arrangement Strings = 2 x 24 Parallel = 17 of the strings. Charge controller Knowing that each panel is about 8.5A x 17 in parallel gives 137A. I want to use 2 nos of Outback FM80. Pls kindly review my calculations and correct me before I do something crazy. Thanks as I look forward to your professional responses. |
Re: Solar Energy, A Complement To FTA by schneid: 8:38am On Mar 07, 2015 |
Here I am again [sup][/sup] my professors in the house. Am not familiar with water pumps been powered with solar. I know of grundfoss DC pumps but not the AC pumps. My challenge. Am to power a 30HP AC pump with solar. 30HP will give me (30 x 750) = 22500watts. Been an inductive load , am looking at pf of 0.65. This therefore means my apparent power is 22500/0.65 = 34615.38VA. And considering starting current which might be up to x 3. Kindly advice on this project with the following. This system is expected to be TOTALLY off grid and running 24/7. Inverter capacity? Brand and system DC voltage . Solar and battery sizing? Thanks as I await your professional suggestions. Best Regards |
Re: Solar Energy, A Complement To FTA by bodejohn(m): 8:40am On Mar 07, 2015 |
@ Schneid, it will be near impossible to charge 38 strings of battery adequately. It is even advisable not to go beyound 3 or 4 strings. You will definitely need to step up that battery voltage to 48 or 96V so that the number of the strings will be reduced. I think you were also too optimistic about the efficiency of the system. 85 or 90% will be reasonable. On a lighter note, are you going to finance that project with a World Bank loan or is it FG sponsored? 78 batteries at 60k each will be 4.6M. 1 Like |
Re: Solar Energy, A Complement To FTA by schneid: 9:44am On Mar 07, 2015 |
bodejohn: Thanks BodeJohn, Increasing system voltage won't be possible because its a 24DC load (DC lamps) I can adjust efficiency as u suggested. I might have to reduce autonomy to 1.5days I might have to increase DOD to 75%. All these above just to reduce cost. Hhmmmm World bank? Its not a personal project but the owner should be able to fund it. Thanks |
Re: Solar Energy, A Complement To FTA by bodejohn(m): 10:16am On Mar 07, 2015 |
schneid: Are the loads purchased already? if not, I suggest you go for 220v power so you can go higher on the battery voltage. It might save you some more costs. Same for the 30HP pump. You will be able to run it on a VFD and prevent the expected starting current... 1 Like |
Re: Solar Energy, A Complement To FTA by schneid: 10:32am On Mar 07, 2015 |
bodejohn: Yes the loads are existing. Both for the lamps and pump. As a way out, I might have to split the load into 3. That way I can have 1200watts each and then size each load separately. What do you think? |
Re: Solar Energy, A Complement To FTA by bodejohn(m): 11:09am On Mar 07, 2015 |
schneid: Perfect, a reasonable option. Is the pump AC or DC? You just have to be careful with high DC currents, they are dangerous. Your efficiencies might also well exceed 90% since there will be no power inversion. On the side, is your client building a poultry farm? |
Re: Solar Energy, A Complement To FTA by schneid: 11:57am On Mar 07, 2015 |
bodejohn: For the lights. Its for a factory premises. For the pump, its for production purposes. (AC pump) Money is not the issue here. I just want to confirm if my calculation parameters n methods are in tact. Thanks |
Re: Solar Energy, A Complement To FTA by chris81964(m): 1:33pm On Mar 07, 2015 |
Sorry for the late response. Get higher AH batteries. Like someone else said you don't want to exceed 4 strings. Charging and discharging becomes a nightmare. Find 6V or 2V Batteries with higher AH. schneid: |
Re: Solar Energy, A Complement To FTA by chris81964(m): 1:36pm On Mar 07, 2015 |
Thin film requires more space than an equivalent mono or poly panel. They however don't lose as much power from shading or heat as your mono and poly. durodee: 1 Like |
Re: Solar Energy, A Complement To FTA by chris81964(m): 1:48pm On Mar 07, 2015 |
I advice people not to skimp when it comes to an Inverter or Charge Controller. We install systems in Nigeria and we had to replace sub standard equipment we installed for our clients at our cost. Most of the systems you purchase in Nigeria are designed for emergency use. The Chinese have flooded the market with equipment that try to imitate the established Inverter brands out there. There are good Chinese brands. I will ask that you Google the brand you are buying before you make the purchase. We have two systems that we have installed that work well. One is made by Voltronics and the other is made by multiple manufacturers. Yiyen and Develpower and many more. They have their benefits and disadvantages as well. The Voltronics inverter is a high frequency unit. It comes with a built in AC charger and DC / Solar charger. Works great when the sun shines. Has a poor charger. Low standby consumption pretty robust. Yiyen powerful charger and the you don't need a voltage regulator does that one it own. Has high standby consumption. It is a low frequency unit. We have moved our products up market. They cost a bit more but all around do the job we need them to do. I advice that you do your research before you purchase. Decide if a high frequency or low frequency inverter will work for you hardywaltz: |
Re: Solar Energy, A Complement To FTA by chris81964(m): 1:55pm On Mar 07, 2015 |
Start by checking the voltage coming in from NEPA /PHCN if it is too low it will not charge your batteries properly. The battery will run out quickly if it is never fully charged. They need to see a full charge daily before you use them. Ogojohn: |
Re: Solar Energy, A Complement To FTA by c0ogumo(m): 2:25pm On Mar 07, 2015 |
bodejohn: It was a pleasure doing business with you. I hope to do more business with you in the future. www.solardepotng.com |
Re: Solar Energy, A Complement To FTA by Barezzi(m): 2:44pm On Mar 07, 2015 |
schneid:There are 2000Ah 2v batteries... Buy 36 in 3 parallel strings for 6000Ah. Those batteries cost an arm and a leg each, but since money ain't an issue, u might wanna consider it. |
Re: Solar Energy, A Complement To FTA by bodejohn(m): 5:11pm On Mar 07, 2015 |
c0ogumo: Sure boss! |
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