₦airaland Forum

Saipro:
The one I tested has the following zero load consumption values:

Full power on: 33 - 40W
AES mode: 29 - 37W
Search mode: 15 - 17W

It's an earlier unit though (firmware xxxx1xx)

NiyiOmoIyunade:
Not this matter again o biko!

So the only new conclusion I can reach is that we either got lemons due to poor quality control or other factors were at play or all the positive testimonials got a different generation/different production batch and better quality inverters than we did although all still within thesame Axpert family.

NiyiOmoIyunade:
Oga Pranil,

Please do you have a link/source for this MPPSolar 5kW 61v Inverter?

I am hoping also that they have an inverter only version with no charge controller built in - this should bring down the price point significantly.

Barezzi:
I use mine with a 2kw hotplate and 2kw electric kettle simultaneously every morning 5 days a week for almost a year now.
This is with other loads of fridge, booster pump and other base loads.

I use a 10kva Gennex Inverter (Axpert clone).

makawhy201:
checkout the link below.

https://www.aliexpress.com/item/-/32863099171.html?spm=a2g0s.13010208.99999999.518.61a43c0063gJhA

NairaBaba:
Oga Pranil,

Please help post the name or link to the current limiting device. Thanks

mrmachine:
We can't really call them 5kva then

mrmachine:
Thanks Mr Niyi. The issue is that I don't have control over what they would plug o. I would love the one that has no restriction but still appreciable no load consumption. Thanks sir

NiyiOmoIyunade:
On my 12v 600w immersion heater, the positive and negative terminals are very close together - less than an half inch clearance - also very small such that it is hard to fit a reasonable gauge cable and terminal lug on them.

At bolded, never underestimate human ingenuity/stupidity - I once bent a clothes hanger wire and used it to short a 12v battery - turns out they make very good heating elements - another ocassion, I retrofitted a battery load tester - took out the metallic element, attached 35mm cables and shorted it to a battery with the metal element immersed in a bucket of water - dumped the entire battery into the water within an hour - water was boiling feverishly and the 35mm cable burned my hands when I touched the exposed copper - I soon realised this piece of metal would even take 24v or 48v - only difference was in the quantity of heat generated - imagine 100amps at 24v - I soon abandoned this folly and went on to more productive things.

But my question remains - in the below image, how to safely crimp on DC cables to such flimsy connections - I ruled out solder for many reasons

NiyiOmoIyunade:
My Oga Pranil,

These are the very same immersion heaters I use for battery capacity testing and also for panel and CC benchmark tests.

Boiling water is always a good way to use up excess energy.

For this solar water heating scenario, what will be the working principle to keep the hot water tank topped off with fresh water as the hot water boils away or better yet how does one incorporate a DC thermostat capable of breaking large currents?

When I first thought along these lines, I thought it best to undersize the panels relative to the water heater so the water doesnt really boil off/get to boiling point on an average solar day.

Another struggle I face is connecting securely to the heater terminals - they are so small and tightly clustered one is always afraid of a shortcircuit and no sooner does one finally get positive and negative terminals connected, the battle against corrosion due to exposure to moisture starts.

kiekie1:
Hello Mr George, contact me privately if you need any service parts for your solar water heater ranging from vaccum tubes, float tank,optional AC element etc .. Cheer's

DUNKA:
Your system is a whole water works on its own and it is ground mounted.

If as I intend to mount on a stand not sure if the same problem George1 encountered may be an issue.

Any feedback for Simba on a roofmounted installation?

DUNKA:
Quite unfortunate and your review had put a real dampner on setting up a solar water heater as I had looked at Protek and other brands such as Simba,NaturePal etc but that all seem to be of similar quality and reputation and I cannot shout

Well the waiting game still continues until a qualitative and affordable solar water heater comes into the market while I will for now increase my solar panels for use of an electric heater.

richmon74:
Hi Engr.

I was referring to Morningstar Inverter/Charger not Charge controller as in your case.
The Victron Smartsolar you are talking about is a charge controller not inverter.

godspeed:
Thanks pranil

Was planning to go for epsolar before I stumbled upon this.

In ur professional opinion, which will you advise I go for?

godspeed:
Ur tots on this charger house.

Found it on jumia

richmon74:
Few of the features that I remember that makes the Morningstar 4kW Inverter great are;

- It comes with known morningstar quality/effeciency
- It is transformerless and as such light weight
- It has inbuilt Display
- It has inbuilt AGS
- It has current Shunt mounted inside with busbars for battery and cc connections.
- Internal DIN rail for breakers
- Inbuilt Network card for stacking and for hooking up Charge controllers
- It has already installed hardware for Lithium Ion battery. Though they are still working on the software as at today.
- It's coming with great price as well

that's all I can remember for now

richmon74:
Goodnews No. 2

We will be bringing in Trojan Lithium Ion battery for your peace with battery.

The good news with this is the fact that you wouldn't need to change your inverters and CCs as the Trojan Lithium will come with internal BMS (which victron lacks) which will be good enough for DIY guys as you wouldn't need to crack your head on rigorous configurations.

So guys, the renewable energy have come to stay and the technological advancement is coming closer to you.

I just hope most of us will get an opportunity to experience the efficiency of Lithium Ion batteries before the Graphene battery wipes it out.

dgr8truth:
The battery cabinet for my DIY powerwall is now completed and in full use.

The next project is building the remaining 43000 kilowatts hours pack. It will be a real challenging project.

Dam5reey:
Not sure parallel connection really have issues with balancing, cos I can't find Battery balancer for Batteries connected in parallel..

Any other suggestion/opinion is welcome..

dgr8truth:
My initial review of the easun 3kva inverter.

So yesterday night BEDC decided to be stingy with the 4/6 megawatts electricity that we managed to generate as a country, so unlike before I decide to be my own BEDC, and having initially this week tasted of the forbidden fruit and experience the consequences, I decided to go again this time to the same forbidden tree a have a filled day and I was not disappointed. It's sin I'm willing to commit again and again, a sin some nairalanders are committing daily. Me I nor go talk go dey see us for this jungle.

The easun inverter I can't say if it's good or bad since it's just about 13hrs in test operation but thus far it is proving to be a good buy. The self consumption is very negligible about 1.88w. Reading from the DC input is 52.04 why reading from the ac side of the inverter is 50.16. The total watts being drawn as at this reading is about 50.16w, I believe that is why the self consumption is very negligible.

One of the convincing options why I decided to buy the inverter over the Indian brands is its selectable dc cutoff voltage for battery.
For now my disappointed with the inver is that it can't keep log, it would have helped me alot.

More reviews of the inverter, and the DIY powerwall will follow.

Dam5reey:
Shipping is 153$

JUO:
Power your fridge, freezer, AC with solar during the day and public power at night when available. Don't kill your batteries with huge load. Price is 16k for 63a

Saipro:
Oga Pranil ... making sense since 1914

earthrealm:
I GUESS COST is part of the problem, and low wind speed in most parts of southern nigeria..save for victoria island axis. TAKE THE 600W HORIZONTAL BLADE WINDTURBINE, IT PRODUCES ITS MAX POWER AT 34mph windspeed, and 150w at 20mph wind speed. the avg wind speed in southern nigeria is btw 6 to 12mph, so imagine installing that unit, you wud be getting about 60 to 100w harvest from it, wch considering the cost is a massive waste of funds.




in my search came across the verical blade type, which hopes to replaces to the horizontal blade type../ the vertical blades are more compact than the hopritonal types, and could be comboéd with solar panels...wouldnt mind getting a 600w vertical blade type to support my panels if the price is right.

[url]https://www.aliexpress.com/item/CE-Approved-600w-wind-turbine-12v-24v-build-in-charge-controller-3-years-warranty/380416524.html?spm=2114.search0104.3.96.6680619eFLYcOK&ws_ab_test=searchweb0_0,searchweb201602_5_10152_10151_10065_10344_10068_5722815_10342_10343_10340_5722915_10341_5722615_10696_10084_10083_10618_10307_5722715_10059_306_100031_10103_10624_10623_10622_5722515_10621_10620-10152,searchweb201603_2,ppcSwitch_5&algo_expid=a8719cb2-5b88-4ca3-bf32-b9c0e0e2d09b-14&algo_pvid=a8719cb2-5b88-4ca3-bf32-b9c0e0e2d09b&priceBeautifyAB=0[/url]

mcTrinity:
have one I'm still wiring... see pics. Is yours different?

godspeed:
Hello house

So much confusion everywhere ooo!

So I got a professional installer to take a look at my set up and confirm why the battery is not charging.

First thing he said is that instead of using 2 250watts panels, I should have gone for 4 150 watts panels, because this according to him, gives me more amperage - 8 amps each translating to 32 amps. He said the battery (220 ah) requires 22 amps to charge while I can use the excess amps to power my appliances.

He claims the 2 panels I have presently generates max of 12 amps which he claims can never charge the battery full.

He also tested the voltage coming thru the CC and got ~36 volts, this he said is too much for the CC as it's designed for 12-24 volts and claims the excess volts is not healthy for the CC and it's preventing it from working optimally.

I had him speak with my installer and he said why he used 250 watts is to get 24 volts which can be converted to more current to charge the battery.

Both of them just left me confused with their technical jargons but both agree I need to change the CC to MPPT.

When the professional guy says I need to add one more 250 watts panel to be able to get a full charge on the battery daily, my installer claims changing the CC to MPPT will fix the problem as it will convert excess volts to current which is sufficient to charge the battery full.

So house, I'm really so confused

ebocoms:
Ok thanks @pranil. Is it the -Ve from the inverter that would pass through the breaker or the the -Ve (jumper cable) that would pass through the breaker B?