₦airaland Forum

Thank you. I will factor this in.

mctfopt:
Just wanted to add something here, you can significantly reduce your energy need by running the freezer and fridge from 10am to 3pm (5 hours). A good freezer would've done a lot of cooling in this five hours.

I have considered all my light bulbs in the 232W, so that is 16 light bulbs of 10W and 2 4ft fluorescent tubes of 36W each. I will not use more than 25% of that load on an average day.

I am happy to replace the ceiling fans. I would only run 2 and that would be during the evening/night.

I don't have an AC yet so I will consider an inverter AC when I get round to it.

Thank you very much for your input. I will definitely take your points on energy efficiency on board.

FEGEITOK:
Is it possible to replace the current lights with energy saving bulbs? How many lights amount to the 232W?

Is it possible to replace the ceiling fans wth those that take less than 75W each?

You will need an inverter AC if you want to run an energy-efficient system

As you will learn when you start using inverters and batteries - energy is not infinite. Although we tend to think you when we use utility power, we only begin to accept that you have to manage consumption if you run a generator or an inverter.

In practical terms, we watch very closely how many watts we take out from our inverters and batteries because they can only give us so much power as the rating allows.

We can even calculate for losses and so even if an inverter is 1.5kva we might not give it loads amounting to 1.5kva

Thank you. Here's the wattage:

1. lights - About 6hours during the night. (232W total but it would probably be about a third of this over the course of the day)
2. Four ceiling fans - 2 running from 6pm-6am (300W total for the 4 fans)
3. TV with decoder - 7pm-11pm (85W)
4. Refrigerator - 7am-7pm (200W)
5. Chest freezer 7am-7pm (110W)
6. Water pump - 1 hour during the day (1.5hp)
7. Possibly an AC in the future - 6pm -11pm (Considering a 1 or 1.5hp system)

olopan:
I will get back to you on this shortly but can you put the wattage either total of them all or individual item with their numbers of loads or appliance

zeestone99:
Sunmart vmii 5.5kw 48v 100a hybrid inverter 500vdc - 375k

Sunmart Vmii 3.5kw 24v 100a hybrid inverter 500vdc - 320k

Sunmart Vmiii plus 3.5kw 24v 100a hybrid inverter 500vdc - 340k

Sunmart Vmiii plus 5.5kw 48v 100a hybrid inverter 500vdc - 395k

Sorotec Revo Vmii 5.5kw 48v 100a hybrid inverter 500vdc - 420k

Sorotec Revo Vmii 3.5kw 24v 100a hybrid inverter 500vdc - 340k

Sorotec 5.5kw 48v 100a hybrid inverter 500vdc parallel version (includes parrallel kit) - 460k

Sorotec 3.5kw 24v 100a hybrid inverter 500vdc parallel version (includes parrallel kit)- 380k

Sorotec Revo vmiii 5.5kw 48v 100a hybrid inverter 500vdc - 440k


Sorotec Revo vmiii 3.5kw 24v 100a hybrid inverter 500vdc - 360k

Powmr 3.2kva 24v 80a mppt hybrid inverter - 250k

Powmr 3.5kva 24v 100a mppt hybrid inverter - 340k

Powmr 5.5kva 48v 100a mppt hybrid inverter - 385k

Call/chat - 08117398294. To order

Thank you for the suggestions. I've done some homework on the Sorotec Revo Vmii 5.5kw 48v 100a. I'll take a look at the other suggested brands as well. This is all very new to me. I thought it would be a quick decision but it looks like I have to do a bit more research and not rush this.

mangolpupa:
1. Growatt 48v 5kw hybrid inverter - more than 500k
2. Sorotec 48v 5kw or 5.5kw inverter - around 450k. (do your due diligence and research)

There are other good brands which members can advice on but these are my take for now.

Thank you for your suggestions. I talk to the installer to see he's familiar with these brands. I did some research on the Sorotec and it looks like you need to know what you're doing to get it to work optimally. My research has now also got me thinking of lead acid vs LifPO4. Too many decisions!

Here are my estimated run times:

1. lights - About 6hours during the night.
2. Four ceiling fans - 2 running from 6pm-6am
3. TV with decoder - 7pm-11pm
4. Refrigerator - 7am-7pm
5. Chest freezer 7am-7pm
6. Water pump - 1 hour during the day
7. Possibly an AC in the future - 6pm -11pm

olopan:
Before proceeding.

If you have the time, can you share you load run time here.

How long you want them to do run during the day & also during the night.

Before you finally returning to the quote provided

Thank you for your input. What hybrid inverter brands would you recommend around that price?

mangolpupa:
Number 1 observation is that 48v 5kva Lento is not N500k. it is far less than that. Look around and find authorized or main distributors. If you are willing to spend 500k on an inverter then you can even get some hybrid brands of same capacity (48v 5kw).

Number 2. 350w x 10 = 3.5kw panel = N1,020,000
Yingli is a very good brand, to get 3.5kw equivalent = 450w x 8 = 3.6kw = @ N115,000 x 8 = N920, 000. So for 0.1kw more power rating, you save N100,000. Assuming the panels are of similar size, you are using 8 panels for yingli (instead of 10 for bestcom) which mean rooftop space savings.

Hello everyone. Please can you help me critique this quotation (parts and cost) I received from an installer? Background: I am looking to go off grid as much as possible. I need to power the following:

1. lights
2. Four ceiling fans
3. TV with decoder
4. Refrigerator
5. Chest freezer
6. Water pump
7. Possibly an AC in the future

Here is what I have been quoted:
1. 5KVA/48V Lento Inverter ₦500k
2. Four 220AH/12V Lento Tall Tubular Battery ₦190k each
3. Battery rack ₦19k
4. 2.5mm cable (15m) ₦1.1k/m
5. 60A Adjustable voltage protector ₦30k
6. 32A AC breaker ₦3.5k
7. Two Breaker enclosure 4-way ₦4k each
8. Ancillaries (Trunking pipes, tapes, 100A knife switch, flash bands, sealants, bolts & nuts) ₦29k
9. Ten 350W Bestcom Mono-crystalline solar panel ₦102k each
10. 60A 48V MPPT Sun-Extra solar change controller ₦155k
11. Four 63A Chint DC breaker single pole (for solar) ₦4.5k each
12. 10mm cable in meters (for solar) (50m) ₦1.4k/m
13. Four Solar Aluminium fittings ₦16.5k each

Thank you in advance for your help.

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