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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 ojeysky(m): 3:36am On Dec 22, 2020
ceaser:


So what will now happen to your 24v/280ah LFP, get more cells and repack for a 48v?

An upgrade was envisaged that's why am running 2p8s on my 16 cells, will just reconfigure to 16s. Advantage of a DIY I guess grin
Re: Solar Energy, A Complement To FTA by ceaser: 3:42am On Dec 22, 2020
ojeysky:


An upgrade was envisaged that's why am running 2p8s on my 16 cells, will just reconfigure to 16s. Advantage of a DIY I guess grin

Yeah. Nice. You had that factored in real good.

So that means each cell was 140ah? I always thought they were 280ah straight off.
Re: Solar Energy, A Complement To FTA by ojeysky(m): 4:54am On Dec 22, 2020
ceaser:


Yeah. Nice. You had that factored in real good.

So that means each cell was 140ah? I always thought they were 280ah straight off.

Each cell is 280Ah and I have 16 of them
Re: Solar Energy, A Complement To FTA by eleojo23: 5:14am On Dec 22, 2020
Please for those of you who have prepaid PHCN meters, does charging your batteries with the mains deplete your points significantly?
I mean does it consume much units or is the consumption negligible?

1 Like

Re: Solar Energy, A Complement To FTA by ojeysky(m): 5:38am On Dec 22, 2020
eleojo23:
Please for those of you who have prepaid PHCN meters, does charging your batteries with the mains deplete your points significantly?
I mean does it consume much units or is the consumption negligible?

Bros consumption can't be negligible o, the higher the charge rate the more kWh depletion you will see on your meter but good thing is that price of electricity is not too expensive
Re: Solar Energy, A Complement To FTA by ojeysky(m): 7:23am On Dec 22, 2020
Looks like @earthrealm has been banned grin

2 Likes 1 Share

Re: Solar Energy, A Complement To FTA by eleojo23: 8:08am On Dec 22, 2020
ojeysky:


Bros consumption can't be negligible o, the high the charge rate the more kWh depletion you will see on your meter but good thing is that price of electricity is not too expensive

Okay, thanks
Re: Solar Energy, A Complement To FTA by eleojo23: 8:09am On Dec 22, 2020
ojeysky:
Looks like @earthrealm has been banned grin

The double lines above your post validates your suspicion grin

Hopefully, the jail term will last only 24hrs cheesy

That antispam bot needs to be checked. It has gone rogue. sad

2 Likes 1 Share

Re: Solar Energy, A Complement To FTA by adrusa: 10:32am On Dec 22, 2020
eleojo23:
Please for those of you who have prepaid PHCN meters, does charging your batteries with the mains deplete your points significantly?
I mean does it consume much units or is the consumption negligible?

Yes! Inverter charging is inefficient. For every KWH you put in your battery, you may draw up to 1.5KWH from PHCN depending on the efficiency of your inverter. And for every KWH you put in your battery, you are probably only able to take out 0.7 or 0.8KWH. So, if you do this regularly, the losses add up.

2 Likes

Re: Solar Energy, A Complement To FTA by Peterlove11: 10:33am On Dec 22, 2020
House....Please I need your help, I recently installed solar panels in addition to my previous setup 3.5kva/24v with 4 220ah batteries due to the poor phcn supply. But I discovered that the daily solar generation is low, roughly 3.7kw.
My batteries is yet to be fully charge since installation.
Installed: 6 270w sunpower panels
2 installed facing south due to space constraint, the remaining 4 facing east
60ah 12/24/48v pwm CC. Maximum current have seen on the controller is 23amps
Is their anything I can do to increase the daily solar yield. At least make my Batteries enter float by the end of a day

2 Likes

Re: Solar Energy, A Complement To FTA by ojeysky(m): 10:48am On Dec 22, 2020
Peterlove11:
House....Please I need your help, I recently installed solar panels in addition to my previous setup 3.5kva/24v with 4 220ah batteries due to the poor phcn supply. But I discovered that the daily solar generation is low, roughly 3.7kw.
My batteries is yet to be fully charge since installation.
Installed: 6 270w sunpower panels
2 installed facing south due to space constraint, the remaining 4 facing east
60ah 12/24/48v pwm CC. Maximum current have seen on the controller is 23amps
Is their anything I can do to increase the daily solar yield. At least make my Batteries enter float by the end of a day

First wrong choice of CC, an mppt is better. What's the panel array configuration? I hope it's 2s3p and NOT 3s2p as that will significantly affect performance since 2 of the 6 panels has a different orientation.

Finally 270x6 is a little above 1.6kw, some 24v CC are limited to a max of between 1.4kw and 1.6kw (60A CC is actually 1.4kw) so you may be getting limitation based on that as well. In addition, you are doing 2x of your rated panel, I will say it's not too bad but you should achieve up to 3x if setup is right.

3 Likes

Re: Solar Energy, A Complement To FTA by adrusa: 11:32am On Dec 22, 2020
Peterlove11:
House....Please I need your help, I recently installed solar panels in addition to my previous setup 3.5kva/24v with 4 220ah batteries due to the poor phcn supply. But I discovered that the daily solar generation is low, roughly 3.7kw.
My batteries is yet to be fully charge since installation.
Installed: 6 270w sunpower panels
2 installed facing south due to space constraint, the remaining 4 facing east
60ah 12/24/48v pwm CC. Maximum current have seen on the controller is 23amps
Is their anything I can do to increase the daily solar yield. At least make my Batteries enter float by the end of a day

Facing East or West is a NO NO. When you face East you receive sun until slightly after mid-day after which your panel will be in a shade. South is the best, North is also manageable if you have space constraints. Then consider changing your CC to MPPT.

2 Likes 1 Share

Re: Solar Energy, A Complement To FTA by Penuelseun(m): 11:35am On Dec 22, 2020
Peterlove11:
House....Please I need your help, I recently installed solar panels in addition to my previous setup 3.5kva/24v with 4 220ah batteries due to the poor phcn supply. But I discovered that the daily solar generation is low, roughly 3.7kw.
My batteries is yet to be fully charge since installation.
Installed: 6 270w sunpower panels
2 installed facing south due to space constraint, the remaining 4 facing east
60ah 12/24/48v pwm CC. Maximum current have seen on the controller is 23amps
Is their anything I can do to increase the daily solar yield. At least make my Batteries enter float by the end of a day
In addition to what ojeysky said, I always make it a rule of thumb to use 600watts solar panels to one 12v 200ah battery, so I think your panels are not adequate to fill up your batteries as you require at least 2400watts of panels if you hope to fill up your 24v 440ah batteries before the day runs out, with an mppt cc of course
Re: Solar Energy, A Complement To FTA by Peterlove11: 12:13pm On Dec 22, 2020
ojeysky:


First wrong choice of CC, an mppt is better. What's the panel array configuration? I hope it's 2s3p and NOT 3s2p as that will significantly affect performance since 2 of the 6 panels has a different orientation.

Finally 270x6 is a little above 1.6kw, some 24v CC are limited to a max of between 1.4kw and 1.6kw (60A CC is actually 1.4kw) so you may be getting limitation based on that as well. In addition, you are doing 2x of your rated panel, I will say it's not too bad but you should achieve up to 3x if setup is right.

Thanks... concerning the panel array configuration, I will confirm from the installer. The difference in price btw the pwm and mppt is much. Will it commiserate with increase in efficiency
Re: Solar Energy, A Complement To FTA by Peterlove11: 12:19pm On Dec 22, 2020
adrusa:


Facing East or West is a NO NO. When you face East you receive sun until slightly after mid-day after which your panel will be in a shade. South is the best, North is also manageable if you have space constraints. Then consider changing your CC to MPPT.


I discovered the panels facing the east receive at least 4hrs of sunshine daily(8am to 1pm). The northern side is usually shaded from the sun most of the time. The western side have at least 4hrs of sunshine too(12pm to 5pm). The best based on my location is the southern roof which have incident sunshine from 8 to 5pm daily. I will strongly look into the mppt

1 Like

Re: Solar Energy, A Complement To FTA by Peterlove11: 1:04pm On Dec 22, 2020
Penuelseun:
In addition to what ojeysky said, I always make it a rule of thumb to use 600watts solar panels to one 12v 200ah battery, so I think your panels are not adequate to fill up your batteries as you require at least 2400watts of panels if you hope to fill up your 24v 440ah batteries before the day runs out, with an mppt cc of course

Getting additional panels now will be way beyond my budget..... currently I might end up drinking garri this Xmas because of the emergency solar installation. Hopefully next year I might add more panels
Re: Solar Energy, A Complement To FTA by essegis(m): 1:05pm On Dec 22, 2020
They say when it rains it pours.

So since 3rd of this month Ikeja Electric installed a 3 phase meter for me which I paid for oo. Ever since their initial 100 units was exhausted under 3 days I have not been able to buy credit and use it as it keeps complaining meter not yet activated. I sure madam has spent more than 5k calling their customer care ever since, yet no solution.

Na inside this wahala sun decide to carry him busy body shift base oo. It now casts a house shadow over my panels. When I did the design for panel placement I took time & did the study properly hence my surprise when I noticed shadow yesterday. This has caused the system not to float for over a week now. Even on days the inverter is not used it still doesn't float.

Well, presently there is no immediate plan to get around this conundrum oo. Question is just why we make our own lives deliberately difficult in this country. No be everything be government cos this is a private business that could have just come up with a very simple system of activation instead of this suffering for their customers. Heard every one who collected meters around the time I did have the same problem.

Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 1:31pm On Dec 22, 2020
The answer is that it depends on the inverter and batteries used.

Case 1 - Lead Acid Batteries charged with Clean PHCN supply, inverter efficiency in AC to DC conversion @ ~90%. Lead acid charge efficiency at 85%.

For every 1kwh of energy removed from battery you will need 1.3kwh of PHCN units to put it back

Case 2 - Lithium battery at 99% charge efficiency and other factors constant as above.

For every 1kwh of energy removed from battery you will need 1.12kwh of PHCN units to put it back.

1.3kwh vs 1.12kwh may look trivial to the uninitiated but this is actually ~60% efficiency gain and not to be scorned at all.

One more reason to choose an efficient Lithium battery over lead acid.



eleojo23:
Please for those of you who have prepaid PHCN meters, does charging your batteries with the mains deplete your points significantly?
I mean does it consume much units or is the consumption negligible?

2 Likes

Re: Solar Energy, A Complement To FTA by ojeysky(m): 2:30pm On Dec 22, 2020
essegis:
They say when it rains it pours.

So since 3rd of this month Ikeja Electric installed a 3 phase meter for me which I paid for oo. Ever since their initial 100 units was exhausted under 3 days I have not been able to buy credit and use it as it keeps complaining meter not yet activated. I sure madam has spent more than 5k calling their customer care ever since, yet no solution.

Na inside this wahala sun decide to carry him busy body shift base oo. It now casts a house shadow over my panels. When I did the design for panel placement I took time & did the study properly hence my surprise when I noticed shadow yesterday. This has caused the system not to float for over a week now. Even on days the inverter is not used it still doesn't float.

Well, presently there is no immediate plan to get around this conundrum oo. Question is just why we make our own lives deliberately difficult in this country. No be everything be government cos this is a private business that could have just come up with a very simple system of activation instead of this suffering for their customers. Heard every one who collected meters around the time I did have the same problem.

Perhaps you did the calculation at a time when the direction of sunlight had not tilted, to reduce this impact and since you don't rely have space to move things around, you may have to redo S and P array setup by making sure the shadowed panels are put on a separate string from the rest of the panels. Now this will be dependent on the type of CC you use, as you need to work within the acceptable Voc of the CC.

1 Like

Re: Solar Energy, A Complement To FTA by IYGEAL(m): 2:32pm On Dec 22, 2020
Peterlove11:


Getting additional panels now will be way beyond my budget..... currently I might end up drinking garri this Xmas because of the emergency solar installation. Hopefully next year I might add more panels

grin
Re: Solar Energy, A Complement To FTA by Pochettino(f): 11:58pm On Dec 22, 2020
Here's what I need;

An inverter set of about 2kva capacity that can last at least 10hours on a full charge.


How much will it cost?

1 Like

Re: Solar Energy, A Complement To FTA by IYGEAL(m): 12:37am On Dec 23, 2020
Pochettino:
Here's what I need;

An inverter set of about 2kva capacity that can last at least 10hours on a full charge.


How much will it cost?

What largely determines how long you'd use the inverter and how much you'd spend for it are:

1. The load you'd run on the inverter.
2. Your battery capacity.

Also, albeit to a less significant extent, the efficiency of your inverter.

So, for this forum to help you, provide the rated power of all the appliances (loads) you'd be running on the inverter, how you intend to charge the battery(-ies); and possibly, your budget.
Re: Solar Energy, A Complement To FTA by generalstingz(m): 9:01am On Dec 23, 2020
Up for grabs.

Felicity 5kva 48V inverter 3 months used 205k

Felicity 2.5kva 24v inveter 3 months used 175k

Felicity lithium pack 200AH 24V 3 months used 4 units 374k

2 with warranty intact ( 374k) and 2 with voided warranty (350k)

Discounts on multiple purchase

Client is upgrading

EDITED
Re: Solar Energy, A Complement To FTA by omotoda(m): 9:06am On Dec 23, 2020
generalstingz:
Up for grabs.

Felicity 5kva 48V inverter 3 months used

Felicity 2.5kva 24v inveter 3 months used

Felicity lithium pack 200AH 24V 3 months used 4 units
2 with warranty intact and 2 with voided warranty

Client is upgrading


Quote prices please?
Re: Solar Energy, A Complement To FTA by ojeysky(m): 9:08am On Dec 23, 2020
generalstingz:
Up for grabs.

Felicity 5kva 48V inverter 3 months used

Felicity 2.5kva 24v inveter 3 months used

Felicity lithium pack 200AH 24V 3 months used 4 units
2 with warranty intact and 2 with voided warranty

Client is upgrading

Just curious, is there a reason for changing the LFP packs?
Re: Solar Energy, A Complement To FTA by generalstingz(m): 9:13am On Dec 23, 2020
ojeysky:


Just curious, is there a reason for changing the LFP packs?

Upgrade to a 48V system with premium inverter
Re: Solar Energy, A Complement To FTA by Pochettino(f): 9:16am On Dec 23, 2020
IYGEAL:


What largely determines how long you'd use the inverter and how much you'd spend for it are:

1. The load you'd run on the inverter.
2. Your battery capacity.

Also, albeit to a less significant extent, the efficiency of your inverter.

So, for this forum to help you, provide the rated power of all the appliances (loads) you'd be running on the inverter, how you intend to charge the battery(-ies); and possibly, your budget.

1. Don't bother about my load. Just 2kva capacity should do the job because a 2kva gen does it currently.

2. For batteries, I expect the person seting up the inverter to know the most efficient one that can support a 2kva inverter & last at least 10 hours on a full charge.

I put up my needs there so whoever is doing it knows what it entails.
Re: Solar Energy, A Complement To FTA by ojeysky(m): 9:28am On Dec 23, 2020
Pochettino:


1. Don't bother about my load. Just 2kva capacity should do the job because a 2kva gen does it currently.

2. For batteries, I expect the person seting up the inverter to know the most efficient one that can support a 2kva inverter & last at least 10 hours on a full charge.

I put up my needs there so whoever is doing it knows what it entails.

The point is that without stating your load we can't help you as that is the most important need that you need to indicate

6 Likes

Re: Solar Energy, A Complement To FTA by earthrealm(m): 10:15am On Dec 23, 2020
eleojo23:


The double lines above your post validates your suspicion grin

Hopefully, the jail term will last only 24hrs cheesy

That antispam bot needs to be checked. It has gone rogue. sad

YUP, WAS banned again, the mail mods issh doesnt work for me, twinskenny or so is the mod for this section. didnt see any supermod option.

@ Niyi , who do you mail?
See my harmless Post...

Re: Solar Energy, A Complement To FTA by ojesymsym: 10:20am On Dec 23, 2020
Is it just me or has anyone experienced that these inverter fridges block fast and lost their frost also very quickly once they are not powered.

Any good freezer recommendation that is able to retain ice long after power outage?

1 Like

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