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Stats: 2,077,968 members, 4,488,541 topics. Date: Tuesday, 25 September 2018 at 10:39 AM
|Re: Solar Energy, A Complement To FTA by DMerciful(m): 2:10pm On Jan 13|
Did a review sometime ago but posted in bits as the autobot was banning me whenever I post for like 3days and even deleted the posts. Anyways, lithium ion phosphate is what they say it is....high longevity,immunned to sulphation and memory effects, high DOD. Expensive in the short term but extremely cheap in the long run
|Re: Solar Energy, A Complement To FTA by DMerciful(m): 2:12pm On Jan 13|
What controller do you use?
|Re: Solar Energy, A Complement To FTA by Barezzi(m): 2:28pm On Jan 13|
Best advice/insight of 2018!
|Re: Solar Energy, A Complement To FTA by makavele: 2:29pm On Jan 13|
Isn'it it obvious?
EPever iTracer series
|Re: Solar Energy, A Complement To FTA by makavele: 2:31pm On Jan 13|
Thanks so much . .
Lithium , oya activate !!!
|Re: Solar Energy, A Complement To FTA by Dam5reey(m): 7:53pm On Jan 13|
So you do bench test too...
Thought you have a general rule that all panels cannot produce more than 77% of the rated capacity real life, even Canadian panels..
|Re: Solar Energy, A Complement To FTA by efuro(m): 7:56pm On Jan 13|
Since November my harvest from sunshine has dropped to 40-55% of installed capacity.
Thank God i over sized my PV to get pass 6hrs absorption stage
|Re: Solar Energy, A Complement To FTA by makavele: 8:24pm On Jan 13|
My nigga; rules can be bent; especially when large sums of "owo" is involved
|Re: Solar Energy, A Complement To FTA by zeestone99(m): 11:34pm On Jan 13|
I ll luk into d matter sir as usual... Solidly on ground 4u
|Re: Solar Energy, A Complement To FTA by zeestone99(m): 11:36pm On Jan 13|
Hmmm oya giv us link, the statement cheaper has gotten my full attention
|Re: Solar Energy, A Complement To FTA by Feshizzy(m): 12:23am On Jan 14|
Good Day Everyone,
I do have a safepower 3.5kva 48v inverter for 2 year+
But I noticed an issue with it,
Before now, while charging;
It's indicates it current bar then continue upwards,
In the sense that, if it was remaining 2 bars before (2/4),
When it starts charging it goes from 2/4, 3/4 4/4 back to 2/4 in that circle till it gain a bar and so on it gets full,
But of recent after getting some new batteries,
For a while now I noticed it doesn't operates in such fashion anymore, now it starts from 0/4 to 4/4 ( even if it was remaining 3/4 bar before) circle till it shows "fully charged" and by then the batteries are literally hissing.
Please is this normal from anyone experience?
Or has the charging algorithm gone bad? If so, is it fixable? Has anyone else had such issue with their inverter and noticed any form of overcharging?
I do appreciate and await a response.
|Re: Solar Energy, A Complement To FTA by makavele: 12:45am On Jan 14|
battery hissing indicates overcharge n gassing
inverter charging algorith has failed and is now overcharging battery
or somebody tampered with the charge settings or profile or you got a different class of battery
one of these options is the answer
|Re: Solar Energy, A Complement To FTA by Feshizzy(m): 1:00am On Jan 14|
Thank you kind sir for you swift response,
Batteries are AGM and the inverter have it settings to the letter, the current charge has 3 profile, low/medium/high and it is on the medium setting.
Forgive my ignorance,
But has there been known cases of inverter having failed algorithm and fixed?
|Re: Solar Energy, A Complement To FTA by makavele: 6:50am On Jan 14|
Yes, a lot of times !
Just for the hell of it, you say you use AGM batteries, yeah?
What are your absorb and float voltage setpoints?
|Re: Solar Energy, A Complement To FTA by kianoe4400(m): 8:30am On Jan 14|
hello house, please anybody who has fairly used good working either 24 or 12v solar panels at a give away price should be kindly help a brother out...whatsapp me on 0.8.1.8.184.108.40.206.4.1.7 God bless
|Re: Solar Energy, A Complement To FTA by zellfoxx(m): 10:18am On Jan 14|
Hello house, does anyone know how I can get Solarworld XL mono panels?
|Re: Solar Energy, A Complement To FTA by DMerciful(m): 11:08am On Jan 14|
Seller can be negotiated with.
|Re: Solar Energy, A Complement To FTA by bigrovar(m): 11:19am On Jan 14|
My advise. Get a panels from a tier 1 solar company. Or a strong tier 2. They are bit more expensive but pay of in the long run and they might actually give u more than some of these black China products like sunshine and joysolar. The first set of products are usually OK and decent.. Once they gain market share.. Subsequent imports end up being crap. Also remember solar PV are suppose to last 25 years. They last longest of all your PV components besides cables so your investment in panel should be over a 20 years at least. Many black China panels are will last tops 10 years if u are lucky. Most degrade even faster. I have seen numerous joysolar installations that have suffered from cell burn out. It's is a common problem with joysolar. Sunshine is just not it for me. Maybe the first set were really good. Present ones in the market I will not recommend. Best PVs are those produced via fully automated production line removing room for human error. With stake naira and PV prices coming down. You can get a good 250w panel at sub 60k price and they would give u rest of mind. Any PV whose name and review you can't find on Google is suspicious. Google the company, read their profile and user review. Also check on YouTube. Jinko, Canadian Solar, Yingli, solar world, etc are some of the names brand you can get and go to sleep. Only time I will go for a tier 3 provider is if am getting it for almost free in which case I have nothing to lose.
|Re: Solar Energy, A Complement To FTA by bigrovar(m): 11:27am On Jan 14|
Feshizzy:That battery is being over charged to the point of gassing which is forcing it to lose water (never good for AGM as water lost can't be replaced) get a multi meter and check the battery voltage when it is charging. What is the name of your inverter
|Re: Solar Energy, A Complement To FTA by Feshizzy(m): 11:56am On Jan 14|
makavele:The inverter doesn't have such setpoints The settings regarding batteries are just two mechanically switch setup Charging settings: high(50a),medium(30a),low(10a) Battery selection: tubular,vrla
|Re: Solar Energy, A Complement To FTA by Feshizzy(m): 12:10pm On Jan 14|
Its a safepower 3.5kva 48v inverter sir
Here's the issue with my inverter above,
My inverter image is below!
Thank you for your time!
|Re: Solar Energy, A Complement To FTA by kiekie1: 12:29pm On Jan 14|
Hello, kindly use a digital multimeter to read the individual charge voltage of batteries .. I don't really advocate for mixtures of old & new set of batteries in any situation to save you the stress of cumbersome trouble shooting ! Cheer's
|Re: Solar Energy, A Complement To FTA by bigrovar(m): 2:05pm On Jan 14|
You are witnessing the effect of mixing batteries (old and new or mixing products) the difference in internal resistance forces the stronger battery to get more than their share of charge and load... the stronger battery gets over charged and over worked.
|Re: Solar Energy, A Complement To FTA by bigrovar(m): 2:16pm On Jan 14|
regarding the effect of mixing batteries. Here is an email I set to battery supplier after one of their batteries failed kobalizing the other batteries in the bank.
I would like to bring to your attention the state of one of the batteries deployed under the Tertiary Institutions Knowledge Center (TIKC). I noticed that the uptime of the Inverter deployed has reduced considerably. I did a voltage test of all the batteries in the bank. (See attached) and noticed one of the batteries attached to Inverter 1 can no longer hold a charge and now displays 11.7v when under charge.
From the attached notes u can see that while the rest of the bank is in float 13.* v, the string that has the shorted battery stuck at 11.7 are all doing 14.* v when there should be at float. This is what causes gasing.
|Re: Solar Energy, A Complement To FTA by olagunju2000: 5:28pm On Jan 14|
My responses bolded above.
|Re: Solar Energy, A Complement To FTA by Feshizzy(m): 5:37pm On Jan 14|
Thank you very much bigrovar, makavele, kiekie1 for you input, I am indeed grateful.
But about the inverter issue?
Is it going to be of great concern?
I noticed when it displays "fully charged" it doesn't send much current to the batteries. I believe this to be the float stage.
But the inverter doesn't count the way it should when it was still new?
Would this new development affect the battery charge performance?
My inverter is a safepower 3.5KVA 48v sine wave inverter that is close to 2 year and also a period of 6 month dormancy after the first year!
Special thanks to bigrovar for being thorough on my battery.
|Re: Solar Energy, A Complement To FTA by DMerciful(m): 8:02pm On Jan 14|
i made this request before and i am making it again.
kindly recommend an air conditioning unit brand that consumes low power such that i can conveniently power with my inverter.
|Re: Solar Energy, A Complement To FTA by jarkbauer: 8:09pm On Jan 14|
I currently have a 1.5KVA 24volts inverter
2 200amps batteries.
I want to add solar array.
Please Can someone tell me what I need if I want to add solar.
|Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 9:56pm On Jan 14|
You need solar charge controller, solar panels, solar panel mounting kit (if necessary), cables, and DC breakers.
|Re: Solar Energy, A Complement To FTA by Barezzi(m): 9:58pm On Jan 14|
DMerciful:LG Gencool brand of air conditioners.
|Re: Solar Energy, A Complement To FTA by earthrealm(m): 10:00pm On Jan 14|
ur bank being a 12v 500ah, needs an inverter tht can output 50amps charging current at 12v to prevent sulphation and premature battery death, am sure none of the inverters listed by @niyi can output such a high charging current. only american and german inverters are capable of such feats at 12v, magnum, schneider etc....
your best bet is either getting such high end inverters or going solar and slap on a 60amp cc minimum, 70amp even better..and enough panels to generate >50amps.
thats the big heartache that 12v setup brings....its best avoided by going for 48v, 24v etc
|Re: Solar Energy, A Complement To FTA by makavele: 10:25pm On Jan 14|
Assuming you only discharge your batteries to 50% everynight;
you would be consuming just about 2.4KwH
And you need at least 800Watts of panel power to recharge the battery back
in about 4 hours sunlight . . .
I mentioned 800 Watts because it would be downplayed to about 600W x 4 hrs= 2.4kwH . .
Thats just the basics . . if you wish to power some loads during the day; therefore you would need to add more panels;
depending on power requirement.
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