₦airaland Forum

chris81964:
An external charge controller gives me more flexibility with strings, array sizes and voltage.
Battery box is vented and I can direct the gasses where I want them. My batteries produce gas. Wood resists corrosion better and does a better job of managing temperature. I have a pretty consistent temperature in my battery box.
Enclosed battery boxes are required to meet code in some countries.

I hope I answered your questions.

I'm just wondering if having an additional external CC on a hybrid inverter will not duplicate the charge controlling capacity of the overall system. Isn't it like having 2 CC connected in series?

Thanks and I really appreciate the information.

Chris81964,

You posted this pic as a result of my earlier question about hybrid inverters.

I need some clarification please.

Why is there an external CC in the in the picture since the inverter is hybrid and has an inbuilt CC.

Why are the batteries in crates instead of placing then in open racks for proper air and cooling.

Thanks as I await your response.

DMerciful:
Just like complexities in living things where a kidney failure can cause the failure of the entire body so it is for a system that combines almost all functions. a failure in one section on the unit can render everything useless . Besides i like the flexibility i enjoy with separate unit blocks......especially for renewable enthusiast like myself who loves trying new things
Longevity of inverter depends on usage conditions like loading, surges, stabilizer protection etc. A solid inverter can fail prematurely if abuse.....fyi non of my inverters have failed...all functions intact.

DMerciful, I'm only trying to get good advice for my upcoming solar system. My intention is to get the best inverter I can get while considering cost.

GeorgeD1:
haslaw,
we could go back and forth on this topic but I think the bottom line still bothers on efficiency.
how do these hybrid inverters compare to their stand alone counterparts in terms of conversion efficiency?
until we begin to see hard empirical data, all we will be doing is argue based on emotions.

Yeah... You are correct. I'm not for or against any type of inverter really. I just want to get advice on the type of inverter to buy as I'll be buying an inverter and charge controller next month

GeorgeD1:
haslaw,
i think the question really should be, what is the conversion efficiency of these built in charge controllers?
i personally like to think that you cannot be a jack of all trades so i tend to avoid products which try to deliver
so many functions all in one. experience has taught me that there's always a trade off.

unless we can find a way of comparing the performances of the separate functions and can confirm that they
are indeed at par with their stand alone counterparts, i think savvy peeps will still prefer to go for products
that will deliver reliable performance while giving the high efficiency most sought after.

Thanks George, but when you look at it, there is no device that doesn't have some sort of trade off. Even the stand alone inverters still has its own peculiar drawbacks. Peeps not using hybrid have not been able to give any real reason for not liking hybrid.

I think the biggest issue is peeps not wanting to try new things and would rather stick to what they are already used to. We still have people who stick to their noisy generators than buy use inverters.

chris81964:
Charge controllers generate a large amount of heat. So does the AC charger inside the inverter. I want to minimize the heat sources inside my inverter, hence I prefer an external controller. Also I am not limited to the voltage and amount of watts I can hang by the controller within the inverter.

There is a cooling system in the hybrid inverter such as fans and cooling fins that fairly takes care of the heat generated same as the non-hybrid. Most of these hybrid inbuilt MPPT charge controller have high MPPT like 60A, 70A or even 80A. That should be enough for future expansions.

dejidotun2000:
I use one such inverter, it has been working fine but with minor issues; There is a power saving feature which is supposed to turn the inverter off if the connected load is low or zero.whenever I enable that feature the inverter output begins to rapidly switch on and off; I have not been able to realize more than 280W from an installed capacity of 600W solae panels, there is a voltage drop of 2v between the solar panels and the inverter though so I really can't assume the fault is from the 500W inbuilt mppt charger yet.

A voltage drop of up to 2v is high and will definitely lead to loses. Could it be that the cables from the solar panels to inverter are undesired

chris81964:
They are popular in Australia and South Africa. Nigerians are set in their ways. They are HF inverters and we have convinced ourselves that they may be less durable than the low frequency units. Installed well they are relatively trouble free

Thanks... I just wondered when I considered the price of the hybrid inverter with inbuilt MPPT charge controller as against the prices of both ordinary inverter and a separate MPPT charge controller. The prices is nearly twice when buying them separately.

I need some clarification please.


While browsing some inverters online the other time, I came across a type of hybrid solar Inverters with inbuilt MPPT charge controller. Looking at the specifications closely, I found out that these types of inverters are cheaper to install as a single unit instead of buying additional MPPT charge controller in a solar/inverter system.

My question is, why are these types of inverters not popular among inverter installers

Hi all, I am an inverter/solar system engineer and I need to buy inverters and batteries. I thought to check Ladipo Market out. I was able to see rev2214. He was very helpful but it seems inverters are not very common in Ladipo. Rev2214 tried to help my directing me to some areas but those guys had run out of stock. Please anyone that comes across inverters or batteries can reach out to me. Thanks.


Also I want to thank rev2214 for the assistance. I really appreciate it.

admindim:
i can teach u if u are still interested

Yes. I'm very much interested.

akinszz:
Some Nigerians working with an American oil and gas service firm, Weatherford International have raised the alarm over gross abuse of local laws and sharp practices being perpetrated by the Nigerian subsidiary of the company, Weatherford Nigeria, against them.

The average Nigerian employee in the company earn less than $1,000 a month, but the average expatriate earns $20, 000 a month or more. How can you afford one expatriate if you lay off Nigerians on the basis that you can’t afford to pay them,” the source queried. Already, the source said the Nigerian Content Development and Monitoring Board (NCDMB) has been notified of the development, but that there was great need to raise alarm over mass sack of over 100 Nigerians and other deliberate plot of the company against Nigerians for prompt action by the Nigerian government and other key stakeholders.


http://www.vanguardngr.com/2016/11/workers-accuse-american-oil-firm-violating-local-content-act/

These companies can only achieve this level of rescal behaviour in a useless country like Nigeria.

They can't even try it in African countries like Ghana, Angola, Ivory Coast, etc

DMerciful:
There is nothing really difficult with inverter installation. basic consideration is that u want the inverter AC input to be connected to mains supply(NEPA) or generator and the inverter output to power specific loads in the house. these specific loads you can separate from the distribution board. You can practice using a small computer UPS and learn from there. You can also watch you-tube videos

Thanks a lot. I have actually watched a few videos and I'm not really expecting the installations to be very difficult. But I just thought it might sharpen my skills if I tagged along a few times with someone who has been long in the business.

Hello house,

I am an electrical engineer with a fair practical knowledge of electrical wires and connections. I am looking for someone I can learn inverter installations from. Something like the practical aspects of inverter installations.

I live in Ikeja, Lagos

Hello house,

I am an electrical engineer with a fair practical knowledge of electrical wires and connections. I am looking for someone I can learn inverter installations from. Something like the practical aspects of inverter installations.

I live in Ikeja, Lagos

Hello house,

I am an electrical engineer with a fair practical knowledge of electrical wires and connections. I am looking for someone I can learn inverter installations from. Something like the practical aspects of inverter installations.

I live in Ikeja, Lagos

Commander, Rapid Response Squad (RRS), ACP Olatunji Disu (middle), flanked by Officers of Nigeria Police Pilots (Air wing) during a special training session on drone surveillance at the RRS Headquarter in Alausa Ikeja Lagos on Monday