essegis:


One of the reasons I now go for external chargers. Over the years I have packed and condemned inverters with either bad chargers or bad inverters. Going together is NEVER a good combination.

Cheap Chinco "Reliable" I bought since 2016 is still doing the job, no chargers attached.

Yes o, the lesser the complexity the less likely something is to fail. Abi no be so?

aizakun:
pls some one should help me calculate my flat power needs
1 PC 65 inches Smart TV
1 PC 43 inches smart
1 pc 32 inches LED TV
3 ceiling fans
12 energy saving bulbs 18;watts
thank you as I patiently wait answers
I want to purchase batteries and solar panel and mppt charge controller

Buy kill-a-watt meter to get the accurate consumption (in watts) of these tvs





[url=/l1zkz6]Link may work[/url]

Solar innovations,just can't wait to explore all avenues solar-wise..... https://www.euronews.com/living/amp/2020/06/05/double-sided-solar-panels-have-arrived-and-they-re-35-more-effective

ojeysky:
Can anyone kindly recommend a good energy friendly water dispenser (with fridge/freezer compartment)?

The type I have seen are all 100w+ and I wonder if that's the normal for it. Especially as they have also have heating element.

Monlo:
Solar innovations,just can't wait to explore all avenues solar-wise..... https://www.euronews.com/living/amp/2020/06/05/double-sided-solar-panels-have-arrived-and-they-re-35-more-effective

I watched about the technology that made it possible earlier today. This is awesome. So those with tight spaces in the future can squeeze out more watts per square meter



https://www.youtube.com/watch?v=wwHjyeyRofM

60A 24/48v Yohako MPPT charge controller available, #55000. Call/WhatsApp us on 08168986461

MurderEnglish:
This is a wonderful thread. I just came across this today. I believe my energy problems will be met here.

Can any one help me?.

These are my power needs
1. Max. 3 laptops
2. Max. 4 phones
3. Max. 4 20,000 (80,000) mAH
4. Bluetooth speaker (it can be charged)
5. Rechargeable fan
6. Reading lamp
7. Led light
8. A flat screen TV maybe.

It's a single room, I think I need it to charge with NEPA or Generator (Mikano).

How much should I budget based on my power needs and how efficient will the whole setup lasts energy wise and longevity wise?

Your load looks like less than 200w, what do you mean by the bolded?

Also you didn't state the number of hours backup you are looking at. But I can only suggest that the load looks like something two 200ah batteries and a 1 or 1.5kva inverter can handle. For cost, check with an installer or marketer.

4 unit of Genus tubular batteries
5.5kva 24v Famicare inverter
8pcs of 260w solar panel
80A MUST MPPT charge controller.

All was bought from MANUEL SOLAR ENERGY ENTERPRISES.
Thanks to Mr Ola for the patronage, God bless you plenty sir.


Call/WhatsApp us on 08168986461

ojeysky:


You can only get help on calculation if you provide the actual wattage of the appliances just like you did for the bulbs

My 55 inches uses about 100 watts,43 inches uses about 80 watts and the 32 inches about 50 watts ,while the fans uses about 50 watts X 3 pcs
Thsnks

justcallmenuel:
4 unit of Genus tubular batteries
5.5kva 24v Famicare inverter
8pcs of 260w solar panel
80A MUST MPPT charge controller.

All was bought from MANUEL SOLAR ENERGY ENTERPRISES.
Thanks to Mr Ola for the patronage, God bless you plenty sir.


Call/WhatsApp us on 08168986461

how much to setup something like this

nem95:
how much to setup something like this

Each of the battery is 115k x 4pcs
The 5.5kva 24v is 190k
80A MPPT charge controller is 105k
260w mono solar panel is 32k each x 8pcs

#1,011,000.

mctfopt:



Your load looks like less than 200w, what do you mean by the bolded?

Also you didn't state the number of hours backup you are looking at. But I can only suggest that the load looks like something two 200ah batteries and a 1 or 1.5kva inverter can handle. For cost, check with an installer or marketer.

At the bolded, I meant to say Powerbank.

For hours of backup, I need at least 24hrs. I understand that NEPA might give light and also my compound has a Mikano that gives us light at least for 3hrs 4days every week.

I want to know how much I will budget for this project.
I really don't want to buy a generator, the noise alone is killing me.

Good day all, please how many batteries and solar panels can power a 15kw Inverter for 12 hours assuming the total load on the Inverter is 12kw continuously for 12 hours . Note: the load consists of mainly pumps, electric motors and 1kw electric heater. Thanks

MurderEnglish:


At the bolded, I meant to say Powerbank.

For hours of backup, I need at least 24hrs. I understand that NEPA might give light and also my compound has a Mikano that gives us light at least for 3hrs 4days every week.

I want to know how much I will budget for this project.
I really don't want to buy a generator, the noise alone is killing me.

Ok I see. Contact marketers for price.

Expertt:
Good day all, please how many batteries and solar panels can power a 15kw Inverter for 12 hours assuming the total load on the Inverter is 12kw continuously for 12 hours . Note: the load consists of mainly pumps, electric motors and 1kw electric heater. Thanks

Ol boy is load o!

Are you really ready for this?

Expertt:
Good day all, please how many batteries and solar panels can power a 15kw Inverter for 12 hours assuming the total load on the Inverter is 12kw continuously for 12 hours . Note: the load consists of mainly pumps, electric motors and 1kw electric heater. Thanks

You can't be putting the inverter on 80% of it's capacity for 12hr, u will kill it. And if u must, get another 15kw and parallel the two(30kw).

For the battery and solar panels, seriously, I am not in the mood.

aizakun:

My 55 inches uses about 100 watts,43 inches uses about 80 watts and the 32 inches about 50 watts ,while the fans uses about 50 watts X 3 pcs
Thsnks

100+80+50+150+(18x8)=524w
524x1.2(if we factor loss)= 628
You will need about 16KWH of backup for this. At 24v system, that translate to between 600 and 700AH Lifepo4 or 1200AH Lead acid (assuming you apply safety precautions).

Do you really want to have 524w all through 24hrs? I don't think so but you have a rough estimate to work with.

ojeysky:


100+80+50+150+(18x8)=524w
524x1.2(if we factor loss)= 628
You will need about 16KWH of backup for this. At 24v system, that translate to between 600 and 700AH Lifepo4 or 1200AH Lead acid (assuming you apply safety precautions).

Do you really want to have 524w all through 24hrs? I don't think so but you have a rough estimate to work with.

How did you type all these numbers without getting banned?

ojeysky:


100+80+50+150+(18x8)=524w
524x1.2(if we factor loss)= 628
You will need about 16KWH of backup for this. At 24v system, that translate to between 600 and 700AH Lifepo4 or 1200AH Lead acid (assuming you apply safety precautions).

Do you really want to have 524w all through 24hrs? I don't think so but you have a rough estimate to work with.

thanks for your analysis, I can work with 14 hours ,can you give me the number of batteries and solar panel as well as Mppt charge controller size

mctfopt:



How did you type all these numbers without getting banned?

Oh maybe I was just lucky, I would watchout for that in future o

Expertt:
Good day all, please how many batteries and solar panels can power a 15kw Inverter for 12 hours assuming the total load on the Inverter is 12kw continuously for 12 hours . Note: the load consists of mainly pumps, electric motors and 1kw electric heater. Thanks

You need a minimum of 20kva diesel generator..

A 15kw inverter cannot power 12kw load for 12hrs. The cost implications of powering a 12kw load is not for your everyday diy

aizakun:

thanks for your analysis, I can work with 14 hours ,can you give me the number of batteries and solar panel as well as Mppt charge controller size

Go with 400AH(2x200AH 25.6v) Lifepo4 or 800AH (8x200AH 12v), if budget is an issue, you can manage 4x200AH lead acid.
80A MPPT
You should get at least 3KW panel array

Sellers here can give you pricing.

I already have 25kva diseal Gen, am planning for 20kva Inverter but I need to know the number of 200ah batteries and 300w mono solar panels that will be able to run 12kw load for at least 12hrs

Expertt:
I already have 25kva diseal Gen, am planning for 20kva Inverter but I need to know the number of 200ah batteries and 300w mono solar panels that will be able to run 12kw load for at least 12hrs

Bros I have just done a rough calculation for 0.6kw which will require 350AH for 12hrs you can do the maths of the rest. I forsee over 8000AH, that's going to require a huge money and robust planning

60a Fangpusun 125k
080-987-337-09

Expertt:
I already have 25kva diseal Gen, am planning for 20kva Inverter but I need to know the number of 200ah batteries and 300w mono solar panels that will be able to run 12kw load for at least 12hrs

If you are NOT powering only the inverter, I'll suggest to either get a lower size inverter or upgrade the size of the generator. 20kva inverter and 25kva generator are too close especially when you consider that you may have like 3kva other loads, generator is not good to run at almost 100% capacity.

24v and 48v battery equalizer is available.
24v is #20000
48v is #30000.

Call/WhatsApp us on 08168986461

2000w souer inverter and charger available, #21000. Call/WhatsApp us on 08168986461

Expertt:
I already have 25kva diseal Gen, am planning for 20kva Inverter but I need to know the number of 200ah batteries and 300w mono solar panels that will be able to run 12kw load for at least 12hrs

Hi, good evening... first and foremost, please take your time to plan this setup, it’s an investment you won’t wish you didn’t do well enough, an again opinions won’t be enough, you need to be convinced also that the final plan will work. Well

It may not be convenient for your 25kva generator to power 20kva Inverter, considering other load to power.

You could chat us up on whatsapp; 08031138665

www.jekitech.com

Expertt:
Good day all, please how many batteries and solar panels can power a 15kw Inverter for 12 hours assuming the total load on the Inverter is 12kw continuously for 12 hours . Note: the load consists of mainly pumps, electric motors and 1kw electric heater. Thanks

Your question calls for professional services. It cannot be adequately addressed in a DIY forum. But we can start.
A well-ventilated inverter runs at internal temperature about 40-65 degrees centigrade. Considering temperature derating and PF, the maximum continuous output at 40degrees is about 61 percent of its nameplate kVa. Your 15kW inverter * 0.61 will carry a continuous load of about 9.15kW. In the first instance, the types of loads you mention tend to cycle on-off, so they stress inverters more and heat it up more, which will lower the power delivery, so expect lower supply for continuous load. In the second instance, your energy storage capacity will determine how long the inverter will supply for.
You mention that the loads are mainly pumps, motors and heaters. Generally, it is advised to not put these HVAC-type loads on solar systems because they usually have start & stop surges current that may be many times their continuous running current. To be conservative, budget 2x or 3x provision for the surge power of the inverter.
You also need to allow for the tare of the inverter system itself.
So your 15kW inverter seems inadequate on its own, your system will need to be expertly built up with solar PV, battery storage, and a backup generator, and solid loads management,

As for number of batteries and solar panels and 12 hours. Presumably you want to carry these loads by solar and storage during daytime?
Batteries: 12kw for 12 hours seems to be straight-forward 144kWh, say 150kWh for system losses, but there's more to worry about.
Allow for some redundancy: 2x for lead acid, 1.5x for lithium. So, 300kWh for lead-acid, 225kWh for LFP.
At 48v nominal, 6250ah lead acid, 4700ah LFP.
Unless you intend to disconnect the loads after the 12 hour shift, then reconnect them before the next 12 hour shift, you will need to provide for their consumption all the time they are connected! You need more batteries.

How many 200ah lead-acid batteries are you going to configure in series-parallel, for your system to be efficient at 48v? 2v 3000ah+ batteries are available if you have a forklift. How will you maintain this battalion of lead-acid batteries? You are in high-voltage lithium territory

Solar
You should plan for the worst month of the year, so assume 4 hours of peak sun hours. All other daylight is a bonus.
There's more mathematics, but to keep this short: You will likely need a backup generator, and diversion loads.

Expertt:
I already have 25kva diseal Gen, am planning for 20kva Inverter but I need to know the number of 200ah batteries and 300w mono solar panels that will be able to run 12kw load for at least 12hrs

Hi Expertt,

You need only 132 units of 200Ah Lead-Acid Battery to give you 6600Ah Battery Bank (@48V and 50% DoD) that you need...

You also need 160 units of 300W PV Modules to give you 48KW PV Array that you need...

You also want to know how many Charge Controllers you'll need

Cheers