swaey:
Can anyone vouch for justcallmenuel’s credibility ..trying to get lithium batteries from him but I’m not in Lagos .

zeestone99:


Why don't u want to create a separate db

Trippledots:


Still need one?

mank1234:


It's not a good practice to mix AC and DC in same board except you're going to take the extra precaution of labeling each line apriopriately. Else, there is potential for catastrophe should an external person is invited to do servicing at the panel.

Personally, I used one DB for mains AC, generator AC, solar DC. As a precaution, the wires are well labeled, and I keep a circuit diagram of the wiring inside the DB as reference for whoever is to work on it tomorrow.

swaey:
Can anyone vouch for justcallmenuel’s credibility ..trying to get lithium batteries from him but I’m not in Lagos .

swaey:
Can anyone vouch for justcallmenuel’s credibility ..trying to get lithium batteries from him but I’m not in Lagos .

Justice629:


Bought 14 450watts Solar panels from him and he delivered them to my location without hitch.

justcallmenuel:
Nice one Engr Ahmad.

Thank you for always patronizing Manuel Solar, God bless you and your family richly.

Call/WhatsApp me on 08168986461

mangolpupa:


Mank1234, thanks for response. I am assuming that you still have a 3 way changeover upstream the main DB. So that you can control what AC out (Gen or Grid or Solar) is distributed throughout the house using existing wiring?

bodeface:
Happy Sunday to everyone!
Please, I need help from experienced installers, users and DIYs.

I am planning to upgrade my inverter system, am looking at buying a 5KW Hybrid inverter (with solar DC input of 450V minimum), I have read of so many brands, I am trying to leverage on the experience of the forum to know which brand and model is considered stable, low idle consumption, compatible with lithium battery (future plan), low failure rate and the cost is within N250K - 350K (slight increase above budget could be accommodated for value and reliability)

Experienced seniors, pls help with brand and models based on experience, these toys aren't cheap anyone, one has to choose wisely. Thanks for your suggestions.

bigrovar:
Recently carried out an ugrade of my solar array. Swapped out Yingli 335w x 9 for 9 Canadian Solar Hiku7 600w panels.

So far no have been very impressed with the performance. Even with the poor visibility and relatively poor solar yield season. This panels are pulling (consistently) over 83% of their rated capacity.
That's over 4.4kw of 5.4kw total PV capacity.



This with solar irradiance at just over 500 watt per meter² and ambience temperature of 37c (as reported by my personal weather station which has an irradiance sensor)

NiyiOmoIyunade:
This looks like a ready install where these questions should have already been answered at the design stage.

TLDR;;; - you very likely want the AC Coupled Option 2 below - by now I believe Schneider must have made firmware updates that make things better and smoother for the system designer/installer

Broadly, you can use the Fronius PV inverter in one of 2 ways

1) Grid-tie;- where you connect the Fronius and Mains into AC In 1 - in this config, the Fronius will only make power from PV where mains is available - without mains, it will shut down and go to sleep. This is the simplest usage scenario optimized for selling excess PV to grid.

The PV energy from the Fronius will first go to supply loads on AC Out and battery charging and all the excess will be exported to grid - big downside there will be no PV energy made when mains is down so not suitable for offgrid - there are a couple of schemes that may work around this but need extra expenditure.

2) AC Coupled;- this scenario is suitable for offgrid use and essentially sets up a micro grid where you connect the Fronius Inverter to the Schneider AC Out. Certain settings need to have been preset or else sparks may fly - see caveats below

a) Appropriate micro grid settings (e.g MG 50) selected on the Fronius

b) Schneider Conext XW+ or Pro must have appropriate frequency shift settings configured

c) A generator connected to AC In 2 must be fitted with a certain Schneider approved contactor/relay that opens the Fronius PV input whenever the generator is running. You do not, I repeat you do not want to feed in excess PV energy into your generator or else something must break. Of course you can jury rig your own contactor to isolate the PV but warranty is lost.

d) Battery charging by reversing energy from the Schneider AC Out is not automatic - care must be taken to configure appropriate [b] time of use [\b] settings for battery charging - you may need a PLC or Raspberry Pi or other logic controller to make this work smoothly for you else a lot of the Fronius PV potential will be wasted.

e) Size of Fronius PV can not over power the Schneider AC Out - Victron use the factor 1:1 rule so a 6kw inverter can only be mated with a max of 6kw PV or Fronius inverter size limited to 6kw PV output/passthrough - Schneider relax this rule somewhat so allow a roughly 1:1.3 size ratio but I would advise to stick to 1:1 as a max for safety and tolerance.

f) The Fronius will only run when it can sense electricity and then it wakes up and syncs its frequency to match - if your system goes off due to low battery, the Fronius cannot automatically wake it up next solar day, you will need to cold boot the system or preferably have a separate PV with a DC coupled charge controller to put some energy in the batteries and eventually wake the system up.

I could not see any DC coupled elements in your picture and this part is critical to a stable system especially if targeted for industrial use or mission critical

For the pundits when I say connect the Fronius to Inverter AC Out or Mains supply, I expect a distribution/bus bar arrangement with appropriate fusing/breaking and isolation for [Mains supply + Fronius Output + Inverter AC In] or [Inverter AC Out + Fronius Output + Inverter Loads] - essentially you must be able to separately isolate each and every of the energy generators, processors and centrally the consumers for a code compliant install.

These are some of the things I remember from playing with these gadgets back in the day - I must say, my experiences sent me firmly into the hands of Victron as they do all these things so much better and elegantly and robustly.

samnaija:


My brother I am using rebuilt inverters 5kva and 7kva, with transformers. there is a chap in arena that redesigns the inverter to your spec. The best thing about this , is the parts are always available.

Trippledots:


Interesting, please throw more light in this rebuilding thingy.

tsiriman:


I will add to the advice above, go for Deye 5kW hybrid inverter, you can add up to 6.5kW of solar panels to the dual MPPT of the inverter and you can get the logs and monitor it online from where ever you are in the world.

As advice above, pair it with 14kWh lifepo4 batteries and you are set for many years to come.

8kW Deye is abit pricey and might be way above your energy requirements.

Remember with victron you'll have to buy some other accessories for monitoring.

Please go for Deye if you can.

tobennae:
Thank you plenty @tsiriman & @earthrealm.
Your feedback is much appreciated.
Where can I reliably source the Deye 5KW inverter; 14kWh lifepo4 battery & solar panels in Lagos?

swaey:
Can anyone vouch for justcallmenuel’s credibility ..trying to get lithium batteries from him but I’m not in Lagos .

Valto:
24v 270ah/48v 135ah lithium battery with 100A Bluetooth bms, 125A circuit breaker, 10mm copper battery terminals, high quality HDF wooden box and voltmeter, brand new real capacity cells with proper compression is available

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VALTECH 12v 1000w, 12v 2000w, 24v 2000w pure sine wave standalone inverter is available

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QASA 10W 18" AC/DC standing fan @27500. cheaper brands also available @25k

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18W 56" DC/AC ceiling fan with remote control and 5meter connection cable @ 30k. other brands available @28k

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all types of lifepo4 lithium battery BMS is available
whatsapp 0802-057-4628

osayuwamwen:
I want to buy this lithium 100ah and this 5000watt inverter can i connect this inverter directly to my generator socket as in like in the way I connect my Gen to the house

Penuelseun:
Yes you can connect it to your house through a changeover switch

osayuwamwen:
Can this 5000watt type of inverter carry a borehole 1.5hp?