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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2274535 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 nonoski: 2:24pm On Nov 16, 2019 |
Just out of curiosity why hasn't anyone experimented with Wind Turbines. These past few weeks Sun shine was a huge luxury here in Port Harcourt. In the month of Sept and October some days it rained or was cloudy for 6 straight days With very poor solar yield. Even today 16th of Nov its still raining in ph. I had to improvise and maneuver to make sure my batteries don't fall below 12.3v but even at that on 3 occasions the batteries fell to 11.9v and 12.1v before sunrise. My battery bank is 48v 600amps (12nr) with a solar array of 7350w (15nr 250w & 12nr 300w) and 2nr Outback Charge Controller FM80 These has necessitated my research on wind turbines but it seems to have very poor reviews. I want buy 2nr 1000w FuSystems wind turbine paralleled to give 2,000w. Please those who have used wind turbines please what is experience. |
Re: Solar Energy, A Complement To FTA by queenfav(f): 2:43pm On Nov 16, 2019 |
earthrealm:eleme axis. Woji isn't far, the person can always come down. Pls do refer the person. |
Re: Solar Energy, A Complement To FTA by efuro(m): 3:28pm On Nov 16, 2019 |
I thought you're one of the old members here. The issue of wind turbine had been dealth with long long time ago when many of us were finding it hard to maintain healthy over nite voltage. But nowadays lithium brands have been helpful. Pls Check out may be you may find it helpful. https://www.nairaland.com/390522/solar-energy-complement-fta/305#62133575 nonoski: |
Re: Solar Energy, A Complement To FTA by chris81964(m): 3:50pm On Nov 16, 2019 |
nonoski: You have a lot of PV power even with the poor weather that you have experienced in Port Harcourt. I have a client who I monitor his system and his numbers have always been better than what I see here in Lagos. He has 18kwh in lithium ion batteries. You have 14400 Kwh useable (50%). What do you consume during the night? 1 Like |
Re: Solar Energy, A Complement To FTA by Namzy(m): 4:16pm On Nov 16, 2019 |
queenfav:I'm sure the charge controller you are looking out to determine whether you battery is full is basing the it's percentage on the battery voltage which is unreliable. My axpert inverter does that. Your battery will have different voltage based on the load applied to it. So a 100% battery when you put a sufficient load on it will suddenly drop to like say 80% and when you remove the load it rises back to 100%. For an accurate battery % reading get a battery meter that has a shunt to calculate amps going in and out to determine the battery percentage. I recommend the fangpusun bmv 700 on aliexpress. |
Re: Solar Energy, A Complement To FTA by harizonal123(m): 4:29pm On Nov 16, 2019 |
Namzy:Link pls |
Re: Solar Energy, A Complement To FTA by hancock(m): 4:43pm On Nov 16, 2019 |
For those hoping to go the path of lithium batteries, an independent testing lab in Australia have been conducting series of test cycles on lithium batteries and the results published periodically. http://batterytestcentre.com.au/ Interesting how Chinese brands of lithium are coming out strong giving the premium brands like Tesla and LG a run for their money. Pylontech batteries reporting a State of Health (SOH) 86% after 1,470 cycles Latest report for September 2019 can be read here http://batterytestcentre.com.au/reports/ 2 Likes
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Re: Solar Energy, A Complement To FTA by simydan(m): 7:08pm On Nov 16, 2019 |
[b][/b]Hello House! This thread is very interesting and very educative, I must say it's really nice falling into this conversation. I'm a diy hobbie with electrical knowledge and have been considering going off grid a very long time but because of the high cost of installing a standard solar system set up I've been sitting on the fence. I've spent lots of time researching about solar, chargers, inverters and battery... While I admit that almost everything that need to said about this topic have been said, I still believe there are other things left behind and would help deliver a better project if one is better informed. I realized that one of the most important part of any grid tie or off grid system centers on the back up system which is the battery, it is the battery that makes your system worth awhile. About 50% to 70% of the total cost of any back up system goes to the battery. That is why the quality of the battery and the technology used is of great importance. It is on this note I'll be talking on the battery Tech's and spec's. As we all know, we have several battery Tech's out there ranging from sealed lead acid, gel, flooded, lithium iron oxide, lithium iron phosphate etc... With lead acid being the oldest and most used due to the fact of past glory and cost effective. I can boldly say that amongst all these batteries, the lithium iron batteries are the future of batteries due to their safety and huge dept of discharge (DOD). Especially the lithium iron phosphate (lifepo4) battery. As far as am concern the main disadvantage of this battery is the initial cost and complexity as it is not handled like the popular lead acid battery. On like other batteries, this battery require a special kind of charge sequence of constant voltage and constant current (CV/CC). Because of this charge pattern it makes it difficult for any charger to charge it without damaging the battery so a special charger is required to charge it. Before I go further I like to highlight some advantages of a typical lifepo4 battery 1. Light weight: about 50% less weight and less volume than a traditional battery. 2. High capacity: lifepo4 is about twice in capacity to a traditional lead acid of the same rabattery 100ah lifepo4 battery is like 150ah-200ah lead acid battery. 3. Depth of discharge (DOD): lifepo4 can withstand more discharge rate of about 80%-100% than traditional batteries which is just 50%. 4. Cycle life: They have a cycle life of 2000-5000 cycle at 80%-100% DOD respectively while traditional lead acid have only 300-800 cycle at just 50% DOD. 5. Large charging current: A well built lifepo4 battery can withstand charge current of about 50%-100% its rated current thereby leading to shorter charging time and charges at CV/CC. For this reason I have decided to make my first project a lifepo4 battery pack and because of of the level of information and privilege I have I am sourcing every parts directly from china myself. Just to satisfy my curiosity and finally have a better power backup This are the list of item I ordered recently and expecting for the project 1. 600w none charger inverter. 2. 20a lifepo4 charger 3. 12v 100ah lifepo4 battery 4. 63A automatic switch for switching between PHCN and inverter since my inverter is not connected to PHCN. I'll keep on with update for this project with pictures when I receive the items. 5 Likes |
Re: Solar Energy, A Complement To FTA by nonoski: 7:26pm On Nov 16, 2019 |
efuro:I'm an old member here actually.. I installed all my solar system by myself with knowledge from here mostly. But I couldn't remember if it has been discussed thanks for the link will read it. chris81964: I have neva bothered to check the consumption in terms of wattage. However it takes about 8-9kwh to charge the batteries to/Throu absorption from sunrise to 11:30am - 12:30pm before going into float. Most often times one of the CC goes into float while the other maintains bulk charge. However during the dry season uptill August my batteries neva went below 12.5v but now on some occasions it has dropped to 11.9v and its beginning to worry me. I am thinking of changing this entire battery bank to Lithium in the future but I need it to last till mid next year |
Re: Solar Energy, A Complement To FTA by tonididdy(m): 9:44pm On Nov 16, 2019 |
Anyone in Benin I can learn a DiY setup from? Please quote me. I am willing to appreciate monetarily |
Re: Solar Energy, A Complement To FTA by zeestone99(m): 11:36pm On Nov 16, 2019 |
queenfav: You can't judge whether your battery is full or not by looking at the display of pwm controllers. Check the battery voltage instead. By evening your batteries should be around 13.4v and above. 1 Like |
Re: Solar Energy, A Complement To FTA by olaolu11(m): 12:53am On Nov 17, 2019 |
tonididdy: Your DIY learning needs no physical presence Sir/ma. All you need is a thirst for knowledge, data for browsing and timeout for study/research, and willingness to ask questions while pushing the boundary. Most important, you must experiment/test/tryout the knowledge acquired. Challenges you encounter will bring out more questions which you would want answered. My setup was done from knowledge gathered from various sites yet I never left my sitting room. 4 Likes |
Re: Solar Energy, A Complement To FTA by olaolu11(m): 1:17am On Nov 17, 2019 |
harizonal123: @queenfav. I forgot to tell you wire used and distance of panel to controller could also be a problem. If possible, snap and post the specs of your panels, controller and size of wire used. And the distance of the panels to your controller. Compare with your Hubby's friend. I still believe you may likely not need to buy/replace anything. I have two pwm and one mppt controllers that are idle now due to the challenges I faced then. So I advise you hesitate before buying anything. Let the house analyse your challenges. Pictures/drawings speak better. Panel specs are on a sticker at the back of the panels. If i guess right, 450 watts you use will be three 12volts 150watts panels connected in parallel. My array is 600watts(150watts bigger than yours) in parallel and I use 60amps pwm controller with 25 meters dual core 6mm wire, one 200ah mercury battery. I have been advised to do series but i am too "lazy" now. I use it with TV at least 12hrs, lights and a 130 watts ox fan(sun hours only; I shall do vigil one day and see how it goes at night). With all these, it has never beeped low battery except once(still hasn't discovered why). So check your load too and itemise them; you may be wasting energy. 4hrs!!? And your load, have you changed to low wattage bulbs like say 5watts/8watts? And I hope you don't leave lights on in rooms while not there? Are you using ceiling fans/ stand fans that are high consumers? These could be reasons for what you are facing assuming the installer did a good job. |
Re: Solar Energy, A Complement To FTA by queenfav(f): 1:38am On Nov 17, 2019 |
olaolu11:wow, thanks a lot bro, will look into all you pointed out. |
Re: Solar Energy, A Complement To FTA by olaolu11(m): 1:54am On Nov 17, 2019 |
ceaser: How is the power bank performance? I won't mind getting it o. I thought I would get two of those fans by month end but with this jack up in price, I may only get one and save for the other. E good make person get money o, I for fon buy since. |
Re: Solar Energy, A Complement To FTA by olaolu11(m): 2:09am On Nov 17, 2019 |
queenfav: Dont believe all you are told by workmen, noone will tell you he is incompetent. Ask your installer the size(amps) of the pwm. You can also check yourself. It should be on the pwm, snap and send to the house. 1 Like |
Re: Solar Energy, A Complement To FTA by queenfav(f): 6:47am On Nov 17, 2019 |
olaolu11:the PWM is 30a |
Re: Solar Energy, A Complement To FTA by Namzy(m): 7:24am On Nov 17, 2019 |
harizonal123:Bmv 700 US $39.96 | accessory 700 for MPPT controllers 5a 10a 15a 30a 50a4 45a 60a 70a https://s.click.aliexpress.com/e/q4vm4C7O |
Re: Solar Energy, A Complement To FTA by ceaser: 8:08am On Nov 17, 2019 |
earthrealm: ![]() See this bros o. You still wan buy this new stock finish again! Make I giddy up. But tell me which is better deal spec wise between the UKA and Qasa. Thanks. |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 11:09am On Nov 17, 2019 |
FAIRLY USED 200 AHMS INVERTER BATTERIES NOW AVAILABLE!! I have some set of fairly used tested okay inverter batteries . Feel free to come , test and pick-up yours if interested for ₦45,000 (LIMITED STOCK) . We also waybill to any state as usual ! Location: Lagos mainland Contact, Smartcell global services 081-350-31951 WHATSAPP::: https:///2348170385620
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Re: Solar Energy, A Complement To FTA by kiekie1(m): 2:24pm On Nov 17, 2019 |
ceaser: The both ain't same size / capacity , guess the qasa should be better in performance ! One of them doesn't come with battery ! Outside jumia sales, you can also get an all on one AC/DC spec with solar panel input & LED light as i recently procured.
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Re: Solar Energy, A Complement To FTA by Nobody: 3:26pm On Nov 17, 2019 |
nonoski: You have a lot of rain, have you explored mini hydro turbines to charge your batteries? |
Re: Solar Energy, A Complement To FTA by lexi28(m): 4:20pm On Nov 17, 2019 |
dataking: hi, please can you share which software you used to draw up your sketch? many thanks |
Re: Solar Energy, A Complement To FTA by lexi28(m): 4:52pm On Nov 17, 2019 |
ceaser: hi, can you share specs of the motor you used? and maybe some pixs of how large (size) a gate it was opening? many thanks |
Re: Solar Energy, A Complement To FTA by simydan(m): 5:24pm On Nov 17, 2019 |
Anybody interested in lifepo4 battery brand new made from 32650 cells any voltage and ah rating is welcome...you can quote me with your contact This one is personally built for me 1 Like
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Re: Solar Energy, A Complement To FTA by Namzy(m): 6:33pm On Nov 17, 2019 |
simydan:How much? |
Re: Solar Energy, A Complement To FTA by queenfav(f): 6:54pm On Nov 17, 2019 |
olaolu11:the PWM solar controller is 30A,its Roy solar product. |
Re: Solar Energy, A Complement To FTA by simydan(m): 7:23pm On Nov 17, 2019 |
Namzy: 12v 100ah is 135k 24v 100ah is 240k You can get different configuration for voltage and current |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 9:10pm On Nov 17, 2019 |
queenfav: hahahaha, that useless cheap roy charge controller, am yet to hear any good news about that product |
Re: Solar Energy, A Complement To FTA by olaolu11(m): 12:33am On Nov 18, 2019 |
kiekie1: How much and link,pls? |
Re: Solar Energy, A Complement To FTA by olaolu11(m): 12:43am On Nov 18, 2019 |
earthrealm: Seems Roy cc is the choice of many installers. I have been seeing it at most locations I visit. What is its attractiveness, is it that cheap? The 60amps I got from aliexpress has no name, is under 10k and is serving well. If your assertion is right about it not having good review, why is it common in houses? And why go for something that's not good because it is cheap. 1 Like
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