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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2276005 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 Juror: 5:31pm On Dec 31, 2022 |
bigrovar:I've heard about fullriver DC having such capability, is it being sold locally? I mean the DC variant that has such higher discharge rate. 1 Like |
Re: Solar Energy, A Complement To FTA by Juror: 5:50pm On Dec 31, 2022 |
Does anyone have any experience using the common blue & black PWM controller to charge LiFePO4 12V batteries ? The highest volt I've seen it reach in a setup is 14.5V, any thoughts or experience? good or ? |
Re: Solar Energy, A Complement To FTA by Juror: 5:51pm On Dec 31, 2022 |
IyaTola:State your appliances What's your budget range ? 2 Likes |
Re: Solar Energy, A Complement To FTA by Juror: 5:53pm On Dec 31, 2022 |
nnadychuks: If you substitute in another battery, it may just die under another year. State your setup configuration and load profile, so you can get better suggestions. |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 6:01pm On Dec 31, 2022 |
Are you forecasting zero yield from the solar panels from like 12pm or what? I am wondering why people have such a dim view of the abilities of a lead acid battery - especially in this case when things could be arranged so that there will be sufficient solar for the pump to run off or at the very least enough solar to offset some of the pump's energy demand. Juror: |
Re: Solar Energy, A Complement To FTA by Aboki01: 6:04pm On Dec 31, 2022 |
Good evening Oga's in here... Abeg I would like to ask if 400-600k can setup a solar(inverter). I intend powering 1. 5 energy saving bulb 2. 55" Samsung smart TV 3. 2 ox fan 4. A deep freezer and a 95l haier thermocool refrigerator 5. 1 ceiling fan. Note: The major purpose of setting up the inverter system is for use at night time. From 7pm- Anytime it trips off in the middle of the night. |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 6:47pm On Dec 31, 2022 |
Errrrm, I think from some of the responses so far, we are missing the whole point of cedarfarms enquiry. I wont be drawn into this useless shenanigans , lithium vs leadacid battery, cos whatever anyone is using/decides to use. Leadacid o, lithium o...e no dey put shiishi for my pocket ![]() ![]() ![]() ![]() ![]() Its best you give your advice, focusing primarily on a design that will work for cedarfarms.and not focus more on attacking what someone else has said. I gave my answer based on what i feel is best for him/what i would do if i were in his shoes. From his questions/comments here...you can guage his knowledge/experience level----without any disrespect to him, he is a greenhorn in this whole solar-inverter biz, so i factored all those in, b4 giving my recommendation....and it would be nice others think along that line too. And dont come up with complex solutions that OP might not understand or be able to actualize. Las las he will be alright at the end, ![]() ![]() 8 Likes |
Re: Solar Energy, A Complement To FTA by samnaija: 7:25pm On Dec 31, 2022 |
NiyiOmoIyunade: Niyi , you can see most of the the profets of doom for lead acid had or created the worse thinking bank bank design with inadequate solar and wanted Shangri-La. If you got burnt that is on your head, your design was flawed.. A lot of people will still get burnt they have not been educated enough in battery university..... Both in lithium and lead . 1 Like |
Re: Solar Energy, A Complement To FTA by samnaija: 7:28pm On Dec 31, 2022 |
Juror: Do you really believe what you wrote, |
Re: Solar Energy, A Complement To FTA by Trippledots(m): 7:39pm On Dec 31, 2022 |
jonescosmos: ![]() |
Re: Solar Energy, A Complement To FTA by samnaija: 7:48pm On Dec 31, 2022 |
bigrovar: How many panels did you have, because all the load you stated. On 2 batteries is catastrophic. Two batteries that makes 24v200 ah of lead acid. Are you using presently this capacity in lithium or it is larger than this. People that have 8 lead acid batteries are even more discreet than this if you don't have enough panels. 2 Likes |
Re: Solar Energy, A Complement To FTA by zeestone99(m): 7:52pm On Dec 31, 2022 |
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Re: Solar Energy, A Complement To FTA by Juror: 8:24pm On Dec 31, 2022 |
NiyiOmoIyunade:Not zero yield but insufficient yield. This isn't about berating lead acid, I merely described realistic situations and scenarios which could easily occur. 2 Likes |
Re: Solar Energy, A Complement To FTA by Dam5reey(m): 9:05pm On Dec 31, 2022 |
samnaija: If course, it can withstand deep discharge I run 2kw load on 5kWh 24V battery bank without thinking about killing the batteries, whether there is sun or no sun. Boss its up to the person to decide! 2 Likes |
Re: Solar Energy, A Complement To FTA by bigrovar(m): 12:50am On Jan 01, 2023 |
Juror: They use to be sold sometimes around 2019. Haven't seen them in the wild since. |
Re: Solar Energy, A Complement To FTA by bigrovar(m): 12:56am On Jan 01, 2023 |
samnaija: The key is system design to maintain balance. This has been the key to my solar setup from day one. I went from 480w -> 600w -> 800w -> 1000w -> 1800w (when I went completely off-grid) -> 3000w. Each panel increase lead to adjustment in energy usage to utilize the new capacity. I think people are being overtly sensitive about this whole lithium - lead acid issue. Use what works for you. The important thing is to design your system around the limitations of whatever battery system you are using. |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 2:49am On Jan 01, 2023 |
Juror: A 12v lifepo4 should not be charging up to 14.5v do reduce your bulk voltage to a voltage within 13.5 to 14 |
Re: Solar Energy, A Complement To FTA by Valto(m): 9:18am On Jan 01, 2023 |
Juror:u seem to be even over charging your cells. from my experience, the perfect charge voltage for 12v lifepo4 lithium is between 13.8v to 14v bulk, 13.5v or 13.6v float. 1 Like |
Re: Solar Energy, A Complement To FTA by GeorgeD1(m): 10:33am On Jan 01, 2023 |
here's wishing everyone on this thread a prosperous new year! 5 Likes
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Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 11:58am On Jan 01, 2023 |
Insufficient solar yield is a design problem that will happen regardless of battery chemistry chosen. So what if lead acid batteries are used to run a relatively large load for the 30 - 45 minutes typically required to pump water? And although there is some solar production in that usage window, it does not fully cover the load demand and the poor battery has to do a good part of the work - what do you forecast could go wrong ![]() Lead acid batteries are not as weak or poor or terrible as people sometimes like to paint, millions of Nigerians are using these batteries and getting decent performance relative to the price they paid. Even in high demand applications, the batteries are dieing mostly from undercharging on a per battery basis and inability to keep series connected batteries well balanced than from the size of the current draw they support. I am not even saying the OP should use lead acid, his battery choice is strictly his preference and what his pocket can cover but even in that worst case scenario, I see no technical difficulty or serious issues that would come up because someone chose to use a modest sized solar and battery bank to run large loads for a relatively short period on a regular basis. Juror: 3 Likes |
Re: Solar Energy, A Complement To FTA by adrusa: 2:15pm On Jan 01, 2023 |
earthrealm: And you are right bro. It is unfortunate that a few people are unable to contain their rank insecurity with their lead acid battery and attack everything and everyone they perceive as dissing their favourite battery chemistry. They sometimes forget that many lithium advocates used lead acid for many years, some running into up to a decade. I used lead acid (AGM and flooded) for about 10 years. I used to pump water on my tubular batteries, but I had 8 of them, 400AH 48V, and my pump was 1 hp. I won't do 1.5 hp on 200AH 24V lead acid battery under any circumstance. Your inverter must be able to do a good surge for considerable length of time, like 5 minutes to be safe. And if there is a major cloud passing while the pump is working, an inverter LVD is a real possibility due to voltage sag. Irrespective of how many people don't like hearing it, Lithium is this guy's best option. The next best option is to have a considerably large lead acid bank like GeaorgeD, 400AH 48v or 800AH 24V will be a good starting point. 2 Likes |
Re: Solar Energy, A Complement To FTA by dollarnaira: 2:46pm On Jan 01, 2023 |
Now it is clear that the moment you mentioned what another person is not ready to hear, you will trigger a tsunami. |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 3:15pm On Jan 01, 2023 |
400Ah 48v of lead acid to support water pumping for a max of 45 minutes every other day or so? I think it is rather much - most agree that some juice coming in from the PV will offset some of this burden quite nicely if not all depending on timing and irradiation levels. Truly it is not even compulsory to run a 1.5hp pump off the solar system - a standby generator fired up every 3 days or so may just be perfect for the need. I started off with lead acid and used and sold all the common variants from AGM to Flooded to Gel, now I sell LFP batteries exclusively (Pylon tech) and assemble my own LFP packs - despite my very positive experience with the LFP chemistry I do not recommend it blindly for all situations - small systems can make do with lead acid and give a very nice return on investment (I gifted 3 small 12v lead acid systems to 2 relatives and a young friend in December 2022 and all are as happy as can be) . Lead acid is a very easy and simple place to begin the RE journey from. adrusa: 4 Likes |
Re: Solar Energy, A Complement To FTA by AshipaEk0: 3:16pm On Jan 01, 2023 |
Aboki01: N.O. NOOOOOOO 2 Likes |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 3:55pm On Jan 01, 2023 |
Say you want to build a smallish system and your household can get by on like 500w of day time loads and 300w ish of night loads - you may have to run the 1.5hp pump off grid or gen primarily. If you go the lead acid route, every 12v 200Ah battery can support about 120w of loads (the C20 rating) so you would need 4pcs of 12v 200Ah to run your 300w of night loads from 6pm to 8am every day - 4 pcs of 12v 200Ah also fits your existing 48v Luminous inverter perfectly. The solar panel wattage needed to support 500w of loads from 8am to 6pm and 300w of loads from 6pm to 8am will be any where from 3000w to 4000w of solar panels - at this point in tech and time, I would say choose the larger panel sizes so at least 450w - 9 pieces of quality 450w panels will get you to 4000w mark nicely and put you on the energy independence side of the curve. 6 pieces of quality 450w panels will give you enough energy most days. All these above assume you are fully offgrid, if you get some hours of PHCN or Gen then you can size your panels leaner, if you are able to reduce your loads too then all the better. You will see that the bill of materials for this 'small' offgrid system runs into a few millions at today's prices. If budget constrained, the more you can prune down your loads, the more you can make your system lean. The idea is that this will be your system for 2 to 3 years and then you can upgrade to better tech - the panels and your inverter can likely be retained through all your upgrades but you will most likely need new batteries. If your budget supports it, you can get 51.2v 135Ah LFP battery pack instead of 48v 200Ah lead acid pack (4pcs of 12v 200Ah lead acid) - with Lithium you just need to get your charge profile right and set a suitable LVD and you can worry less about whether you are overloading the batteries or whether there was enough solar charge for that day. With Lithium also, you can expect from 6 years and above of use vs say 18 months - 4 years with lead acid. The level of positive assurance is higher with Lithium i.e a well designed pack with decent cells will likely give you 8 years or more of service. If you cross 1 year with your lead acid, you will celebrate, 2 years you got something good and 3 years and above you got it right. If your budget does not cover enough for 9pcs of 450w panels + 4pcs of 12v lead acid batteries at least then you are going very lean, if you already made the decision to go solar any ways then I would say just get 4pcs of 450w panels + 2pcs of 12v 200Ah + compatible inverter (you will need to jettison the 48v Luminous) and use this system to learn what is possible - later with your learnings and more cash available and faith in renewable energy you can build a system more in line with your needs. One viable way to proceed as a newbie is to get a quote from an installer and bring it here for people to help you critique the materials used and costs. If you are more DIY inclined you can purchase an energy meter within 10k and use it to determine what your appliances consume - this will put you in a very good place with respect to sizing your system properly. Cedarfarms: 5 Likes 1 Share |
Re: Solar Energy, A Complement To FTA by Fapemz: 4:12pm On Jan 01, 2023 |
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Re: Solar Energy, A Complement To FTA by Pojomojo: 4:16pm On Jan 01, 2023 |
![]() Aboki01: |
Re: Solar Energy, A Complement To FTA by Pojomojo: 4:34pm On Jan 01, 2023 |
Juror: ![]() |
Re: Solar Energy, A Complement To FTA by IyaTola: 4:36pm On Jan 01, 2023 |
Juror:I want Canadian panel and lithium batteries |
Re: Solar Energy, A Complement To FTA by Cedarfarms: 5:32pm On Jan 01, 2023 |
NiyiOmoIyunade: Thank you for this elaborate explanation, it really puts things into perspective, and helps me consider my best options. Happy new year! |
Re: Solar Energy, A Complement To FTA by vta2008: 7:12pm On Jan 01, 2023 |
bigrovar: Abeg no vex how do I calculate the recommended discharge rate of my setup? It's a 5.5kva 24v inverter with 4 pieces of Hausstrom HS-22043 12V 220AH Tall Tubular Battery. I don't know the C rating of the battery as it's not included in the package. The discharge rate is per hour abi? Thanks |
Re: Solar Energy, A Complement To FTA by Jefferyzz(m): 7:44pm On Jan 01, 2023 |
Cut ur load 5 5w bulb 1 Samsung tv 2 rechargeable fan À deep freezer of not more than 130w With 600k u will b able to setup something that will power all that. Aboki01: |
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