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Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 1:30pm On Apr 12, 2013 |
Well my view, don't look at it that way... U will get the figures wrong.. Look at it from the battery up... You have 500amp battery at 24vdc setup, right... So let's say u have sun at full for 5hrs a day, it will take 100amp per hour to charge the battery to full. Assumption that the battery is flat. Assume u are using morningstar ts mppt 60, u will need 2 of this, filled up to the top, for 24v each controller should have max of 1600w each. So u need a total of 3200watts of panel, u can do the numbers from here. So if u assume 10hrs u will only need one controller. From my little experience always think 5hrs Like I always say, I stand to be corrected 2 Likes |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 9:16pm On Apr 06, 2013 |
earthrealm: has anyone come across a reliable batt tester....some bad batteries show good voltage with the basic volt meter, but fail to carry load when connected!....wud want to purchase a simple tool to test battery capacity/amp b4 purchasing any battery in the future. my little experience, what works for me is just to load the battery with some heavy current drainer, if it survives 30mins, then u are good to go most of the times, still that's not a hundred percent guarantee, best thing to do is just buy a battery with a brand name and a date stamp, i am doing maintenance battery now. u can buy http://www.amazon.com/gp/product/B000AMBOI0/ref=oh_details_o09_s00_i01?ie=UTF8&psc=1 good luck |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 9:51pm On Apr 05, 2013 |
bodejohn: A word of caution on these cheap panels. Very true, i know of a guy, that supplies panels with "perfect printed labels of sharp solar panels from ALABA Int", by the way the have "stand by printers", for anything you require at that market. so its worth taking the extra time to investigate your source. But after all said, panel prices have more or less crashed. |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 10:22pm On Apr 04, 2013 |
George_D: hello akanniade, painful, i am a sharp fan and an importer of sharp panels, prices have really crashed this days, i use to sell sharp at N800 - N1000 per Watt, but now the prices have crashed. |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 10:07pm On Apr 03, 2013 |
George_D: @George_D: Correct! @DaLover: nice one, send us snap shots of the mppt readings at very high current thanks |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 2:24pm On Apr 01, 2013 |
hi, is anyone in this forum using flooded batteries like the Trojan T105? thanks |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 2:23pm On Apr 01, 2013 |
bodejohn: March was a very good month although the Sun's irradiance dropped deeply towards the end. nice one |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 2:00pm On Mar 31, 2013 |
DaLover: yes, correct. |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 4:14pm On Mar 30, 2013 |
earthrealm: ok, thanks..whats this one for? hi, as the name implies, its a fuse holder meaning that you can buy any fuse type you require, depending on the amps you need, just nut it round the two nuts and there you go, you have a fuse, like i call it fashionable that's it. but i like it. if you are getting it make sure you get the fuse you require. example fuse http://www.amazon.com/Absolute-ANL100-2-Pack-Fuses-Plated/dp/B005EUTA3E/ref=pd_sim_e_2 i always stand to be corrected thanks |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 12:26pm On Mar 30, 2013 |
earthrealm: wow this is a big loss, for us newbies venturing into the solar mmpt stuff...fear don catch me...pls some1 shud post a pic of a breaker, am about ordering my solar panels, mppt charger from amazon...would like to include the breaker..so guys pls help just get a simple cut out, between the controller and battery u need just a mechanical disconnect, just like the oga at the top George_D pic will do. if you want to be fashionable u can get http://www.amazon.com/BATTERY-DISCONNECT-CUT-OFF-KILL-SWITCH/dp/B00425NBRI/ref=pd_sbs_auto_5 - this is for 12V system http://www.amazon.com/HELLA-002843011-Series-Rating-Battery/dp/B0000AYAFE/ref=pd_sbs_auto_16 - this is for 24V system i just added it on my wishlist on amazon. |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 10:10am On Mar 29, 2013 |
bodejohn: hi, it was a nice sunny day, just got Mustpower inverter and wanted to test it as a backup inverter to the cyber power, connected the battery, u get that large spark(to avoid this put a cut out switch, i dont like a breaker between the battery and controller, cause if the breaker is activated and the panels are still producing power, it might fry the controller, so just a cutout switch should do ) cause i do a 48vdc, i then mistakenly short the +ve and -ve of the panels when connecting to the mppt cotroller and BANG! i lost the cotroller, thats it really thanks |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 5:30pm On Mar 28, 2013 |
earthrealm: wonder y urs is grayed out, mine is not..see the pic i added below. mail me the pics skyhigh0455 at yahoo dot com.i will help u add it. Just to show u why its very important to put a breaker or cut of switch between ur charge controller and the battery and solar panels, I fried my Morningstar mppt 60amps just cause of my carelessness. thanks
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Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 12:06pm On Mar 27, 2013 |
How do I add a pic on this forum My "choose file" is greyed out, I can't select it Thanks |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 10:31pm On Mar 26, 2013 |
earthrealm: could some1 post a pic of the cables...u said 6mm....is is the normal house wiring cable?...or is there special dc cable....braided or non braided? It's me again,I would advice u do flex cables for all ur dc connections, a bit pricy compared to the regular non flex My .02cent |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 4:53pm On Mar 21, 2013 |
kiretiv: hi guys am new into the solar stuff, just installed a couple but am not getting the max benefits. I got 12pcs of 280watt panels on a 60watt charge controller with 16pcs of 12v 150ah batteries but my batteries still don't get beyond 49v at the end of the day. I see in George D pix having 57v which is amazing. I want to know if my set up is having issues or another charge controller need to be added. fyi I use same charge controller as George D, and my arrays setup is 2 panels in series and 6 parallel. thanks hi again, please can send me the make or brand of the 280watt panels |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 11:12pm On Mar 20, 2013 |
kiretiv: hi guys am new into the solar stuff, just installed a couple but am not getting the max benefits. I got 12pcs of 280watt panels on a 60watt charge controller with 16pcs of 12v 150ah batteries but my batteries still don't get beyond 49v at the end of the day. I see in George D pix having 57v which is amazing. I want to know if my set up is having issues or another charge controller need to be added. fyi I use same charge controller as George D, and my arrays setup is 2 panels in series and 6 parallel. thanks hi, "batteries still don't get beyond 49v at the end of the day." i am assumiing you are doing a 48v on the battries right? since you have 12pcs of 280watt, and u are using @George_D type MPPT controller, you should have "3 modules in 4 strings" just like @bodejohn just rightly put it. The morningstar MPPT 60 can handle 150vdc, with "3 modules in 4 strings" you voltage should be about 110vdc aprox which is less than 150vdc, good to go like i always say, "i stand to be corrected", we still dey learn this solar thing. |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 10:59pm On Mar 20, 2013 |
bodejohn: hi, sorry i have not recieved any mail, which addy did you send it to? |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 3:20pm On Mar 19, 2013 |
earthrealm: is it recommended to buy special cables to connect ur solar cells to the batteries...considering the distance?... i intend to install my solar panels but they are going 2 be about 35ft waya from my mppt/battery..can i just use normal ac single core cable, the separate red n black type...or do i need to buy a special cable? The cool part about mppt controllers is that u don't need really thick cables like the regular non mppt controllers, I stand to be corrected, but I always advice that a flex cable be used for ur DC connections, maybe in ur case 2-4 mm flex should sort u out. For the. Pricing issue, I would like u to send a snap shot of the module spec, I am seeing really high wattage panels and low current being sold in nigeria. Thanks |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 3:40pm On Mar 17, 2013 |
@bodejohn: very cool, u are sorted, ur charge controller is maximized. |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by TotalGreen: 2:32pm On Mar 16, 2013 |
hi, i am new in this forum, read some of your post and would like to contribute to this topic, i have been in renewable business for some time, i would say i have a little experience about this topic. i would like to answer some questions that might be of help. @pdozie : please you cannot equalize sealed deep batteries, only Flooded batteries can bee equalized, flooded meaning maintenance batteries(where you can open to caps and fill in distilled water). @bodejohn : (6 panels....2pcs of 120watts and 4 pieces of 100watts., I will be buying 4 more 120watts by the weekend. I plan to change the whole array to 120watts and rest all the 100watts panels till I get another charge, controller.) like to ask, those that us MPPT controllers how do you connect your panels, example i guess the for you to have sukam 3.5kva you would be running 48volt dc, how did you combine "2pcs of 120watts and 4 pieces of 100watts" on your MPPT controller. just asking to know, cause i do not think you might be maximissing your MPPT controller on the HOT days. |
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