davodyguy:
Hello chief niyi and Dmerciful

It rained heavily last night and the effect is seen on the sun right now, very poor now in Lagos

My Panel is sending 3-4Amp to the batteries.

I want to use the inverter now and still allow the Panels to continue to charge. My question is if I load the batteries now, will the load be on the batteries by draining them or it would be like normal electricity that charges batteries and also supplies power without depleting my batteries?

I hope you get my question

davodyguy:
Hello chief niyi and Dmerciful

It rained heavily last night and the effect is seen on the sun right now, very poor now in Lagos

My Panel is sending 3-4Amp to the batteries.

I want to use the inverter now and still allow the Panels to continue to charge. My question is if I load the batteries now, will the load be on the batteries by draining them or it would be like normal electricity that charges batteries and also supplies power without depleting my batteries?

I hope you get my question

NiyiOmoIyunade:
If solar is your only power source and your loads exceed the 3-4amp solar charge current cominng in then your batteries would start draining since they must make up the power difference.

Even if there were no loads 3-4amps is very small to charge a battery so I would say wait a while for the sun to come out later in the day before you start putting on your appliances.

DMerciful:
Davodyguy,
You are right the sky is very cloudy and I am only getting 232w fortunately my 'convenience loads' are less than 180w so net my battery is charging a little.

Look at it this way, you a filling a bucket at a volume flow rate of 10m3/s and draining at 15m3/s....net you are depleting your reserve. For mains, the inverter takes enough power from the grid(we can say the grid power is unlimited comparatively) to power the load and charge the batteries.

I have an analogy meter that tells me if the batteries are being charged or discharged and by how much depending on the needle direction.

For light loads like TV, fans and lights, I use a small inverter of less than 20k but very efficient while I use my mustpower 3kva for heavy loads like AC, pumping machine, iron when needed.

See pics below

dejidotun2000:
It depends on your load.
If you panels are supplying 4A @ 24V, that's 96Watts.
Let's say your load is 100W, the panels will supply the 96W and the extra 4W will be taken from your battery.
In essence, your battery isn't charging.
Note that the self consumption of your inverter wasn't factored into the analysis.

davodyguy:


Wow. Yours is super. I'm currently doing 200watts. Its safe to conclude that I'm losing batteries, cos the 10amps can't do anything.

My wife is on my neck and since we work to take care of the family.

If the batteries start showing, signs of being low, I'll put on the gen.

My aim is to increase my system by end of march, 2018.

I'll get 2 more 300 watts panels to take my system from 600watts panels to 1200 watts panel

DMerciful:
Led TV and fan should not be more than 70w....mine is 42inch led TV and it's 50w and fan 20w

davodyguy:


Wow. Yours is super. I'm currently doing 200watts. Its safe to conclude that I'm losing batteries, cos the 10amps can't do anything.

My wife is on my neck and since we work to take care of the family.

If the batteries start showing, signs of being low, I'll put on the gen.

My aim is to increase my system by end of march, 2018.

I'll get 2 more 300 watts panels to take my system from 600watts panels to 1200 watts panel

DMerciful:
Funny when at investment stage the wifey will be like why are u spending so much. But at the benefit stage they can't do without it

DMerciful:
Funny when at investment stage the wifey will be like why are u spending so much. But at the benefit stage they can't do without it

NiyiOmoIyunade:
If you use the standard solar mount or the much cheaper but very reliable 'aluminium roof rails' such as myself or Zeestone improvised, I can assure you that there would be no heat related losses generated - the aluminium roof rails clear about 2 inches off the roof and underneath them is pretty cool because the panels would be reflecting heat off their surface. They also mount very conveniently using the standard solar roof brackets, clamps e.t.c

This is not a marketing pitch mind as they can easily be sourced off the open market at a good price - just something to consider that may be of help.


I am not a fan of mixing different panel brands except you know for sure they are nearly identical in rating, behaviour and performance - I always feel one brand would adjust voltage and amps output under load differently than the other and the least performing panel would become the limiting factor for the entire system.

See pictures of the kind of roof rails I had in mind attached.

davodyguy:


Hahaha.

It shows you're an experienced Married.

When I started satellite TV stuff, it was wahala.
Come see my collection of decoders, you go fear. I have a unique way of describing my house. I'll say its the only house you'll find a 3 90cm dishes and one massive 2.6m mesh dish in my entire estate. My wife almost reported me as being wasteful. But now, she watches AFN, which is not available on DSTV and other interesting stuffs

I do remind her of how she criticises me each time I'm spending.

Na our work ooo. Na we say we're tired of single living and go marry

kiekie1:


You are highly welcome Sir .. My mobile number is 24/7 reachable

davodyguy:
Hello team.

Found this, but not sure of it usefulness

sharks776:
Hello, I got and replaced me old quanta batteries with two brand new quanta batteries today. The manufacturing date was November last year and the manual say they should be charged if stored for 3 months from date of manufacture. Will live them to charge with nepa over night. Thinking of to add more PVs' . currently I have 6 130w making a total of 780w. Can I add 4 more to make it 1200w? Will the CC take it?
See my CC specification http://www.mustups.com/pc1600a-series-mppt-solar-charge-controller/

NiyiOmoIyunade:
If you use the standard solar mount or the much cheaper but very reliable 'aluminium roof rails' such as myself or Zeestone improvised, I can assure you that there would be no heat related losses generated - the aluminium roof rails clear about 2 inches off the roof and underneath them is pretty cool because the panels would be reflecting heat off their surface. They also mount very conveniently using the standard solar roof brackets, clamps e.t.c

This is not a marketing pitch mind as they can easily be sourced off the open market at a good price - just something to consider that may be of help.


I am not a fan of mixing different panel brands except you know for sure they are nearly identical in rating, behaviour and performance - I always feel one brand would adjust voltage and amps output under load differently than the other and the least performing panel would become the limiting factor for the entire system.

See pictures of the kind of roof rails I had in mind attached.

DMerciful:
NiyiOmolyunade Sir
[b]I have similar issue with epsolar itracer struggling to track max power point when the panel voltage was 106v Vs battery voltage of 25v. Reading through the manual it is recommended that PV voltage should be twice battery voltage so I changed my configuration to 2*3 [/b]so that Vmax is BTW 52v and 60v and since then there has been improved stability and improved harvest. I sold a fangpusun flexmax to someone and he complained that the performance was low compared to his Atracer 40A epsolar, I asked him to send it back and I experimented with different PV voltages and realized according to the manual, pv voltage of times 2 battery voltage is best for the flexmax provided ur cable size is thick enuf. Now he is very happy using it and he now install for others using this standard. So different voltages for different controllers

samnaija:
Guys a 24v 500ah system. What's the best panel configuration. If your are going to use12/24/48v epsolar mmpt charge controller 60a. The max power is 1600 watts for 24v system. Is it better parallel all panels or double the PV volts.

bodejohn:
Dear friends,

I have the following items available for sale.

1. 12/24/48V 45Amps TriStar MPPT CC complete with displays - 2pcs
2. 220Watts Solar Panels - 9pcs
3. 36v/2.2kva inverters - 2pcs

All items are in good condition and comes with 3 months warranty.

Location: Ibadan

Contact: WhatsApp only - 09078802022

makavele:
bad weather . . . oooooooooooooooo

zeestone99:


windmill sir

zeestone99:


windmill sir

DMerciful:
What is the Voc of the panels? U can get this info from the name plate. What is the wattage of each panel and how many panels in total?

davodyguy:

Is anyone in Nigeria using that 'fan' like system at the moment?

zeestone99:


Makavele ll use n giv us review sir, dnt wori I ll convince him