SolnergyPower:
Thank you but my budget is less than 100k.

earthrealm:


errrm, sorry .want to make some clarifications, must be the 2 days that i had my gen on to charge my inverter than confused me...something i hvnt done in more than 6months.
so on gen the mopower charging voltage remained on 51.6v and current on 22amps, no matter the setting [i blv cos the batt was low, the charging algorithm is making it charge the batt slowly, or it doesnt like the not so clean gen power?], it stayed like this for 3hours...

phcn later brought power, and i was now monitoring the display like a hawk...i saw the voltge go as high as 59.6v and 31amps [something i dont recall ever seeing b4 unless on equalize setting], it later settled to 53.6v and current abt 2amps, wch i believe is float.
seems mustpower has only 3 stage charging, unlike prag that has 4 stage.
i am using the 15.1v setting now, and not the 14.8v i have always used...lemme watch and see if there is any improvement

@juo & all, how do u calculate the self consumption of the inverter....wch device do u use?

earthrealm:


100 effing watts!!!!!, and the clowns wrote <25w on the manual, ...damn!.
so pls clarify the dc voltage on the display when its charging, what charging/batt setting do you use, what type of battery do you have

@bigrovar most common inverters dont charge with 58v for a 4 batt setup, prag is even 13.3v, mustpower stated 14.8v but i dont see that when my batts are charging

Ferdiwar:



That is to say that the best way to switch off you system of it is not on a 24hours working capacity is to off the battery to the inverter

DMerciful:
On must power I use option 3 for charging which is sealed flooded acid(I use sealed flooded acid battery n lithium iron phosphate(glorious battery)) They quoted 25w in their manual but its pure lie. The best way is to use energy saver mode so when there is very little load it goes on standby however even if you running a load of 39w, know that what ur battery is seeing is 130w. Their charging system is awesome(mine is adjustable charging current), I have no issues though I use a 24v system.

earthrealm:


yeah, i was using option 6 - open lead acid 14.8v, ytday i switched to option 7 calcuim-15.1v, lemme observe and see, though am seeing some improvements already
yes i use the energy saving function, once your loa is less than 35w, it will trip off, a bit iffy for me on cold nights when i have only 2 energy saving lights on,16w each, it usually goes off...unless its 18w each.

have you checked the idle consumption when on energy saving mode?

earthrealm:


yeah, i was using option 6 - open lead acid 14.8v, ytday i switched to option 7 calcuim-15.1v, lemme observe and see, though am seeing some improvements already
yes i use the energy saving function, once your loa is less than 35w, it will trip off, a bit iffy for me on cold nights when i have only 2 energy saving lights on,16w each, it usually goes off...unless its 18w each.

have you checked the idle consumption when on energy saving mode?

abunafiu:
I have been banned for 4 days in a row for trying to share my battery absorption parameters.
I don't understand nairalands anti spam algorithm.
I wanted to contribute to the discussion on flooded mercury.
Let me observe sha before her banned again.

DMerciful:
I have a small inverter with self consumption of about 5w. I use this at night n for light load operations. I use my must for appreciable loads. I switch over from one inverter to the other without my electronics going off

earthrealm:


type it, convert to picture and upload the attachment, the spambot doesnt like calculations and stuff

Ferdiwar:


Maybe the spambot failed mathematics in school

SolnergyPower:
Please who has a brand new 48V MPPT solar charge controller for sale?

dejidotun2000:
How do you switch without interruption ?

abunafiu:
I have been banned for 4 days in a row for trying to share my battery absorption parameters.
I don't understand nairalands anti spam algorithm.
I wanted to contribute to the discussion on flooded mercury.
Let me observe sha before her banned again.

earthrealm:
@abunafiu, nope i didnt just water them...have tried charging them at 61v/ie equalization setting for upto 24hrs, at 3hr internals with usage inbetween...still no show.
ait o...u said ur bank drops to 49.2v by 6am powering the loads u listed?. how many batts do you have?/whats ur bank size in AH?

MINE DROPS TO 49.2V under 8hrs just powering 2 ceiling fans 75w each. 3 x 16w energy bulbs, 1 samsung 46inch led tv..90w or so, dvd hometheater 85w (a few hrs inbetween)
i think the drop to 49.2v is too rapid, i used the mecury set b4 transfering them to the villge, they stayed at 50v for almost the whole day!

abi is this normal, and am just anxious for nothing?

therealMcCain:
My journey for RE has started,

I have the following

1. 1400va Kevin inverter 24v
2. Epever 30a, 100v CC
3. 4×200w solar panels, acquired from our uncle in the house, GeorgeD1( yet to be received though)
4.watt meter

I rewired the house & have a dedicated DB for the inverter


Outstanding

1.Pv connection cable
2.breakers
3.BATTERIES
4.combiner box
5.Pv mounting kit or frame should I choose ground mount
6.earthing protection for Pv & inverter DB

CC
Dmerciful
GeorgeD1
Efuro
Bigrovar
Juo
Abunafiu

More questions coming please
1. The max for my CC is 780w, can I use the 4 panels totalling 800w?

If yes what's my best way of connecting them?

2. If my CC Max rating is 30a, won't it be a problem if my CC is producing almost this on a constant basis because of my 800w setup

3.can I use normal 10mm cable or it's best I go for the amoured cable

Distance from panel to CC will be 7m

Distance from CC to battery will be 12m


These distances is a result of optimum position for the inverter & battery

The location of the CC in my balcony is safe from water but battery at ground level won't be

Should i work out a way to put the battery there, I can't put my inverter there

Meaning if my CC & battery is at Same location, my inverter will be inside the house 12m away from Battery

Option 2

Run cable straight from Pv to CC-battery-inverter all located inside the house, 19m

My only concern with this option is ventilation

So how do I go about this please

DMerciful:
I have a two way switch I switch over quite fast such that whatever is on remains on

JUO:
this your battery is not performing poorly with the way you are painting it for a standalone system. You have calculated over 400w from the list above for a battery that has worked without any assistance for over a year and without adequate charge for a very long time. I think the battery is dropping in performance cos of steady use. Try and introduce solar and see what happens. Is never advisable to use only inverter and battery and expect your battery to do over 700 cycles in some cases you can do 700 cycles in less than a year

DMerciful:
I was banned like 6 times trying to conclude my review on lithium...in d end I stopped half way.

therealMcCain:
My journey for RE has started,

I have the following

1. 1400va Kevin inverter 24v
2. Epever 30a, 100v CC
3. 4×200w solar panels, acquired from our uncle in the house, GeorgeD1( yet to be received though)
4.watt meter

I rewired the house & have a dedicated DB for the inverter


Outstanding

1.Pv connection cable
2.breakers
3.BATTERIES
4.combiner box
5.Pv mounting kit or frame should I choose ground mount
6.earthing protection for Pv & inverter DB

CC
Dmerciful
GeorgeD1
Efuro
Bigrovar
Juo
Abunafiu

More questions coming please
1. The max for my CC is 780w, can I use the 4 panels totalling 800w?

If yes what's my best way of connecting them?

2. If my CC Max rating is 30a, won't it be a problem if my CC is producing almost this on a constant basis because of my 800w setup

3.can I use normal 10mm cable or it's best I go for the amoured cable

Distance from panel to CC will be 7m

Distance from CC to battery will be 12m


So how do I go about this please

efuro:




But your statement below:
“The location of the CC in my balcony is safe from
water but battery at ground level won't be” I can't put my inverter there !

Shows you don’t have a problem (at least to me). However, I wonder why you can’t put inverter there?. If it is for security reason, I can reason with you. Solar devices are very expensive & attractive to undesirable elements, it’s when they are safe that you can enjoy 24hrs power.

therealMcCain:



Thanks

I will send a snapshot of the balcony later

I intend installing the CC up but if the battery is placed at ground level, it will be exposed to rain cos water gets there when it rains

Secondly, everyone entering my flat will see my setup at once which I don't quite like, then there is the issue of operating the inverter by coming out of the house

earthrealm:


got the battery early oct 2016, so still fairly new, not upto 1 yr,
my next plan is to hook up my WATT METER to the inverters output and hv the total consumption in watts, so i can have a clearer picture and compare notes with folks running a similar setup on this thread.

why am a bit concerned is that when i had 2 x 200ah sealed batt with 1.4kva luminous, when new, it lasted 3 to 5 days of almost same load, though 6pm to 11pm daily usage, the mustpower 4 x 200ah flooded batt setup barely lasts 2 full days noon to 12am usage and voltage will approach 48v, and lower

emmaniche:
Good evening house, I’m new into green energy. But I’ve been mandated to make a quotation for the installation of solar energy at a particular location.
My main concern is the client in concern is really interested in monitoring the solar setup over cctv and if possible controlling the setup. i.e the charging and discharge rate, watts stored, battery level, switch time from NEPA to solar.
House is this really possible as I’ve been mandated to research into this and give back a quotation for the projected to be kick started.
Thanks very much awaiting feedback from u guys. God Bless.