Jefferyzz:
Are U connecting d panels in series or parallel. If it's series, Ur only concern should b d length of d cable cause of voltage loss.

Series the 2 pv is not bad with the 4mm cable, especially with the inverter Voc of 450vdc and working voltage range of 50-430v. As you rightly said, his major concern should be distance (voltage loss) between the pv and the inverter.
I guess it's a 12v system

Please refer me to who sell access control materials/devices at Alaba.
I am in of electric push bar I have included a picture in case I no dey call am well .

💯

isangjohnson:

Series the 2 pv is not bad with the 4mm cable, especially with the inverter Voc of 450vdc and working voltage range of 50-430v. As you rightly said, his major concern should be distance (voltage loss) between the pv and the inverter.
I guess it's a 12v system

Hi.
Is IVPM better than IVEM?
what are the advantages and disadvantages of each?

NiyiOmoIyunade:
IVPM models are low frequency transformer based inverters with MPPT - the IVPM5048 should have a 120a MPPT bundled in

IVPS models are low frequency transformer based inverters - NO MPPT

IVEM models are high frequency hybrid inverters. The current iterations can do PV voltage up to 450v DC.

People colloquially call the high frequency inverters 'transformerless' but technically that is not the case.

skywalker95:
Hello house. I think I made a mistake by buying 4mm DC cables. I intend using two Jinko 615w panels. Please, is there any risk of fire hazard with this wire or will I only lose efficiency from my panels?

Answer to this depends on whether you're connecting in series or parallel.

Series, you're fine. Parallel, you're not.

A 615W panel isn't supplying more than 13 A at most, and a 4mm cable is more than enough to handle that. A 4mm DC cable is rate for ~20A.

If you're connecting in parallel, though, that's 26 A and you need an 8mm cable or risk a fire outbreak.

skywalker95:
Hello house. I think I made a mistake by buying 4mm DC cables. I intend using two Jinko 615w panels. Please, is there any risk of fire hazard with this wire or will I only lose efficiency from my panels?

Get your answer yourself at this site: https://www.solar-wind.co.uk/info/dc-cable-wire-sizing-tool-low-voltage-drop-calculator

You can play around with the variables and check what suits you best, costwise and performance wise

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why you should not charge up to 14.6v, there is little or no gain. Best advisable range is 13.7-13.8v.


https://www.youtube.com/watch?v=x0cYky8Axns&t=268s

Dam5reey1:


You point are off Topic, Can I use 14.6V on a well Built pack is well balanced at the top with low Deviation?

Stop adding errors from inverter and all.

The battery i tested all have 3.65V and BMS is active and there is no issue so far because I am using it.

Wether there is 0 gain or thats another topic.

Trending now:
100%
14.6v
3.65
3.55
3.50
Cable
Fire

obitobe:
why you should not charge up to 14.6v, there is little or no gain. Best advisable range is 13.7-13.8v.


https://www.youtube.com/watch?v=x0cYky8Axns&t=268s

This is my video too, watch to see my recommendation!


https://www.youtube.com/watch?v=YL-Yt_O8E44&t=11s

isangjohnson:

Series the 2 pv is not bad with the 4mm cable, especially with the inverter Voc of 450vdc and working voltage range of 50-430v. As you rightly said, his major concern should be distance (voltage loss) between the pv and the inverter.
I guess it's a 12v system

Lots of people are yet to understand that a 12-volt system actually costs more than those of higher voltages especially since you would be forced to use thicker cables

@bassdow
up there you mentioned that 4mm2 is not suitable for 2pcs of 615W panel. Explain why it's not suitable.

bassdow:
Lots of people are yet to understand that a 12-volt system actually costs more than those of higher voltages especially since you would be forced to use thicker cables

Though there's cost savings per watt for additional capacity gain, it's not true that 12V system is costlier than 24V or 48V system, it's not true except you're comparing same power across board (panel, battery, and load).

A 12V 1kW system is cheaper but use same wire sizes as a 24V 2kW system.

A 12V 2kW system will use bigger wire than a 24V 2kW system only for the battery connection but you can opt to use half the battery capacity thus reducing the overall cost.

There is a big difference between theory and praticals. Most here only based their arguments on online writers that copied one another. Most testers are white guys with different climatic conditions which plays a very big factor on solar yield.

On the other hand, there are guys who will go beyond paper to confirm exaggerated points. Where you belong matters. There are things I won't even say in public because it will defy the rules of most YouTube believers. Na who get sense go survive this economy.

Gradually grid users are getting dark nights while solar users are getting bright nights. October to December heat here I come.

oluwapoju:
Pls I need recommendation on Wi-Fi module that's compatible with Cworth inverter?

They have their module. I got one within the week

What advantages does the hybrid inverter have over the non hybrid inverter with charge controller and vice versa?

samistry:
What advantages does the hybrid inverter have over the non hybrid inverter with charge controller and vice versa?

Hybrid: with Charger and MPPT built in.
Pros
Cost saving
Easy installation
Aesthetics
Efficiency

Cons
Not modular

Non Hybrid : with Charger no controller
Pros
easy to maintain.
independent devices

Cons
High cost
not efficient

Dam5reey:


Hybrid: with Charger and MPPT built in.
Pros
Cost saving
Easy installation
Aesthetics
Efficiency

Cons
Not modular

Non Hybrid : with Charger no controller
Pros
easy to maintain.
independent devices

Cons
High cost
not efficient

On what grounds are they not efficient?

Idle current?

For the cost it's almost the same thing.

Obnoxious2001:


On what grounds are they not efficient?

Idle current?

For the cost it's almost the same thing.

Cable losses, connected device..

Stand alone Inverter is more expensive na. Unless you are not in market.

Dam5reey1:


Cable losses, connected device..

Stand alone Inverter is more expensive na. Unless you are not in market.

Okay

Dam5reey:


Hybrid: with Charger and MPPT built in.
Pros
Cost saving
Easy installation
Aesthetics
Efficiency

Cons
Not modular

Non Hybrid : with Charger no controller
Pros
easy to maintain.
independent devices

Cons
High cost
not efficient

Gone are those days broda.
Some Transformer based inverters are now efficient and have very low idle consumption, like our 5kva Snadi transformer based inverter on idle consumes around 29w to 30w.You can come to the office to check anytime u r free.

zeestone99:


Gone are those days broda.
Some Transformer based inverters are now efficient and have very low idle consumption, like our 5kva Snadi transformer based inverter on idle consumes around 29w to 30w.You can come to the office to check anytime u r free.

Sure, was interested until the price is no longer viable.
You self know that at your price, I will have 6.2KVA Hybrid with 6000w MPPT which is equivalent to 120A MPPT now tell me the cost of the 120A separate MPPT.
And I will still cater for battery cable from CC to batteries.

Dam5reey1:


Sure, was interested until the price is no longer viable.
You self know that at your price, I will have 6.2KVA Hybrid with 6000w MPPT which is equivalent to 120A MPPT now tell me the cost of the 120A separate MPPT.
And I will still cater for battery cable from CC to batteries.

Money for Felicity 120A MPPT reach to buy 3.5 KVA hybrid with 80A inbuilt normally.

At this point, there's pretty much no value in buying a standalone inverter.

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[pte author=HeavenlyBang post=132685941]

Money for Felicity 120A MPPT reach to buy 3.5 KVA hybrid with 80A inbuilt normally.

At this point, there's pretty much no value in buying a standalone inverter. [/quote]

Can it kick in at 30v ?
Like just with one panel.

HeavenlyBang:


Money for Felicity 120A MPPT reach to buy 3.5 KVA hybrid with 80A inbuilt normally.

At this point, there's pretty much no value in buying a standalone inverter.

Is when your hybrid inverters develop faults that you appreciate the stand alone.

Any little fault on hybrid inverter you are look at almost 100k on repair.
Besides you are left completely stranded if you don't have a redundancy plan.
(if you dey this ship go and make plans down storm is coming )

So if you do a comparative cost check, transformer based are cheaper over time

Dam5reey1:


Cable losses, connected device..

Stand alone Inverter is more expensive na. Unless you are not in market.

Cable lose is not a factor of Inverter but rather associated devices / application.

Even the HF inverter require you size the wires adequately.

I will still maintain my stand point, a lot of good product exists in the market, but no body is willing to use their money to test them.

So test brand/names make more money onces they cross the threshold.

Obnoxious2001:


Is when your hybrid inverters develop faults that you appreciate the stand alone.

Any little fault on hybrid inverter you are look at almost 100k on repair.
Besides you are left completely stranded if you don't have a redundancy plan.
(if you dey this ship go and make plans down storm is coming )

Baseless take. Na you wan spoil am? Pretty much every solar setup I've seen abroad uses a hybrid inverter, and not a transformer-based one. How come those inverters aren't dying every day.

Na so dem say carburetor better pass injectors back in the day.

HeavenlyBang:


Baseless take. Na you wan spoil am? Pretty much every solar setup I've seen abroad uses a hybrid inverter, and not a transformer-based one. How come those inverters aren't dying every day.

Na so dem say carburetor better pass injectors back in the day.

Abroad uses hybrid inverter and also use standalone.

Even why compare abroad with us, their heavier load is connected to grid .

They connect their system with the grid, if their system is making or generating excess power it turns their utility meter backwards hence they are suppling to the grid .

When their system is under performing the grid or utility is used. So please why compare we in Nigeria to them. Their inverter virtually does nothing.
But in Nigeria here without grid, same inverter water heater, pumping machine and ac.

I'm yet to see a Nigerian who thinks that External CCs are waste of Time and Money in the present day Renewable Energy Systems.

Can your charge controller invert DC to AC when your separate Inverter becomes faulty?, Of what use exactly will your Charge controller be at the point in time?

Please answer sincerely. Except of course you want to tell us about how you can still power your DC gadgets. But outside this, please educate us further.

Obnoxious2001:


Is when your hybrid inverters develop faults that you appreciate the stand alone.

Any little fault on hybrid inverter you are look at almost 100k on repair.
Besides you are left completely stranded if you don't have a redundancy plan.
(if you dey this ship go and make plans down storm is coming )

So if you do a comparative cost check, transformer based are cheaper over time



Cable lose is not a factor of Inverter but rather associated devices / application.

Even the HF inverter require you size the wires adequately.

I will still maintain my stand point, a lot of good product exists in the market, but no body is willing to use their money to test them.

So test brand/names make more money onces they cross the threshold.