Penuelseun:
Yes you can, for let's say a 100ah battery and inverter excluding a solar panel

Neimar:


Solar panel would cost how much?
I need an estimate
To power bulb, TV and maybe laptop

olopan:
The 20 panels is just a start, minimum to charge your batteries alone, considering your loads you will need. More panels. -300W + will be better

If you haven't roof your house yet kindly consider a flat roof this will be better for a solar install.

And plan ahead of time to get your plans scalable and flexible (since your loads, are not properly define yet)

sethtsadopp:

Well the roofing is not in my hands as it's a mini estate where we just buy. Attached is plan and 3D. The second one is mine. They are still at DPC and project should be ready to deliver by March/April next year so I'm trying to plan ahead. Is it possible to deduce how much Panels each tenant's roof can take from the attached plan/3D? Im interested in knowing. It's a flat hidden roof so i think that's good right?

For Load my rough Guess will be
2-3 Interver AC(1.5hp)
2-3 TV
3 standing FANs
1 Water Heater
All lightings
1 Fridge
1 Freezer.

My plan is to use appliances that are as low energy consuming as possible and this will be factored in as we do any purchase.

So with all these, do you think a 15KWh - 20KWh LiFePO4 would go a long way? And how much should I budget for? I'd personally like to buy most of the things myself to save cost. I am already in talks with Felicity and BSLBATT. The former is cheaper but I'm concerned about quality as I'm getting divergent views.

soladavies:
Fairly used 1kva pure sine wave inverter needed

sethtsadopp:

Well the roofing is not in my hands as it's a mini estate where we just buy. Attached is plan and 3D. The second one is mine. They are still at DPC and project should be ready to deliver by March/April next year so I'm trying to plan ahead. Is it possible to deduce how much Panels each tenant's roof can take from the attached plan/3D?
From a rough estimate each tenants roof apart from the far right apartment excluded should do ~ 11.88KWp /36 JA solar panels each but 40 Panels if others slack

Im interested in knowing. It's a flat hidden roof so i think that's good right?

The flat roof is perfect as the panels layout will allow for the sun to pass over them daily and seasonally

For Load my rough Guess will be
2-3 Interver AC(1.5hp)
2-3 TV
3 standing FANs
1 Water Heater
All lightings
1 Fridge
1 Freezer.

Your loads based on assumptions is roughly 8KW at peak

My plan is to use appliances that are as low energy consuming as possible and this will be factored in as we do any purchase.
So with all these, do you think a 15KWh - 20KWh LiFePO4 would go a long way?

20KWh ESS is preferred

And how much should I budget for?

5.5m without BOS or workmanship etc. ( completely offgrid)

I'd personally like to buy most of the things myself to save cost.

Your items can be bought locally by yourself as you local warranty

I am already in talks with Felicity and BSLBATT. The former is cheaper but I'm concerned about quality as I'm getting divergent views.

sethtsadopp:

Well the roofing is not in my hands as it's a mini estate where we just buy. Attached is plan and 3D. The second one is mine. They are still at DPC and project should be ready to deliver by March/April next year so I'm trying to plan ahead. Is it possible to deduce how much Panels each tenant's roof can take from the attached plan/3D? Im interested in knowing. It's a flat hidden roof so i think that's good right?

For Load my rough Guess will be
2-3 Interver AC(1.5hp)
2-3 TV
3 standing FANs
1 Water Heater
All lightings
1 Fridge
1 Freezer.

My plan is to use appliances that are as low energy consuming as possible and this will be factored in as we do any purchase.

So with all these, do you think a 15KWh - 20KWh LiFePO4 would go a long way? And how much should I budget for? I'd personally like to buy most of the things myself to save cost. I am already in talks with Felicity and BSLBATT. The former is cheaper but I'm concerned about quality as I'm getting divergent views.

earthrealm:


SINCE YOU PLAN TO BUY most items yourself, why not consider buying the lifepo4 cells from china and have someone build the pack for you for a small fee................or you buy the ready built packs by the guy in jos, his 48v 300ah pack was 1.5m last time i asked.

but buying the cells from china, you would spend about 90 to 130 usd per cell, ie 3.2v 280ah eve ,catl or rept cell, freight inclusive, so a 560ah 48v cell, made up of 32 pieces would gulp about 4k usd or less, which is real value for money. 29kwh!.

we wrapped up a group buy of almost 150 cells in april, and they are already enroute nigeria..hopefully july will make landfall in naija, you and likeminded souls could organize a similar group buy to save more cost..................forget about buying panels from china, its not worth it
good

sethtsadopp:

Well the roofing is not in my hands as it's a mini estate where we just buy. Attached is plan and 3D. The second one is mine. They are still at DPC and project should be ready to deliver by March/April next year so I'm trying to plan ahead. Is it possible to deduce how much Panels

So with all these, do you think a 15KWh - 20KWh LiFePO4 would go a long way? And how much should I budget for? I'd personally like to buy most of the things myself to save cost. I am already in talks with Felicity and BSLBATT. The former is cheaper but I'm concerned about quality as I'm getting divergent views.

NiyiOmoIyunade:

Already mounted a 300L solar water heater on the roof so hot water needs are covered.

earthrealm:


SINCE YOU PLAN TO BUY most items yourself, why not consider buying the lifepo4 cells from china and have someone build the pack for you for a small fee................or you buy the ready built packs by the guy in jos, his 48v 300ah pack was 1.5m last time i asked.

but buying the cells from china, you would spend about 90 to 130 usd per cell, ie 3.2v 280ah eve ,catl or rept cell, freight inclusive, so a 560ah 48v cell, made up of 32 pieces would gulp about 4k usd or less, which is real value for money. 29kwh!.

we wrapped up a group buy of almost 150 cells in april, and they are already enroute nigeria..hopefully july will make landfall in naija, you and likeminded souls could organize a similar group buy to save more cost..................forget about buying panels from china, its not worth it

tonididdy:

Do you have an Xbox 1s?
Bro that shit is 170w

olopan:
This I can tell you the plan looks good, I am interested to work with you on things

I will give you a better break down at a later time studying the information provided.

Stay tuned

abbeymighty:
This guy is tested ad trusted, I have given him an instslation in April , well executed. Patronised him

olopan:
Thanks brother, appreciate the review

Glad we could deliver the best for you.

earthrealm:


but buying the cells from china, you would spend about 90 to 130 usd per cell, ie 3.2v 280ah eve ,catl or rept cell, freight inclusive, so a 560ah 48v cell, made up of 32 pieces would gulp about 4k usd or less, which is real value for money. 29kwh!.

sethtsadopp:
It's a flat hidden roof so i think that's good right?

The flatter the roof the better. A slight 10-20% inclination is desirable depending on your area.
However the "hidden" is a disadvantage, as the parapet will cast a shadow most hours of the day except at midday when the sun is directly above.
Also your building is skewed facing SW. But you want your Panels facing South for optimal results meaning your panel orientation will be skewed to your building when installed.
Lastly if your flat roof slopes to the back of your house, it means the direction of slope of your roof is counter to the desired inclination of your panels. So to install on that roof you need to design a platform for your panels with the desired inclination.




My plan is to use appliances that are as low energy consuming as possible and this will be factored in as we do any purchase.

On this you already got some decent advice/calculations from previous contributors. But let me add that you stick to 3-5w bulbs and for TV 25w or less. Also identify the actual wattage of the so called "inverter AC or heater". A heater is usually 1000w or higher, so what is the rating of the solar type. I would generally not use any appliance exceeding 80w on my inverter except when the sun is at its peak and my inverter on bypass .

So with all these, do you think a 15KWh - 20KWh LiFePO4 would go a long way? .

A battery assembly giving 500ah or higher is suitable for a monocrystalline 150w x4 panels installation

toluxa1:


Hi there. This Solar Water Heaters, how efficient/effective are they? How does it work, Is it direct sunlight that heats the water or there is some kind of electronic heating? What is the average temperature of hot water you get? Near boiling possible? Can you get hot water even at night?
Lastly what is the cost of the one you use?

All4good:
A battery assembly giving 500ah or higher is suitable for a monocrystalline 150w x4 panels installation

olopan:
Replies are in Red below
kindly share your email or contact us via number on signature below, I will like to share with you a more detailed information, documents to fill as to arrive at a precise energy usage and see how we can help bring your ideas to actualization

toluxa1:


Hi there. This Solar Water Heaters, how efficient/effective are they? How does it work, Is it direct sunlight that heats the water or there is some kind of electronic heating? What is the average temperature of hot water you get? Near boiling possible? Can you get hot water even at night?
Lastly what is the cost of the one you use?

All4good:

On this you already got some decent advice/calculations from previous contributors. But let me add that you stick to 3-5w bulbs and for TV 25w or less. Also identify the actual wattage of the so called "inverter AC or heater". A heater is usually 1000w or higher, so what is the rating of the solar type. I would generally not use any appliance exceeding 80w on my inverter except when the sun is at its peak and my inverter on bypass .
Thanks very much for taking time to reply. @bolded.. really? But even inverter AC I believe is more than that. I am looking at a system on 15 - 20 KWh and the plan is to have at least 2 - 3 1.5HP AC on it.


The flatter the roof the better. A slight 10-20% inclination is desirable depending on your area.
However the "hidden" is a disadvantage, as the parapet will cast a shadow most hours of the day except at midday when the sun is directly above.
Also your building is skewed facing SW. But you want your Panels facing South for optimal results meaning your panel orientation will be skewed to your building when installed.
Lastly if your flat roof slopes to the back of your house, it means the direction of slope of your roof is counter to the desired inclination of your panels. So to install on that roof you need to design a platform for your panels with the desired inclination.

Hmm, quite true about the hidden roof. Though my own place is right at the middle of the structure (3rd House) so I am thinking it should have the least shadow impact. I may be wrong though, we will see how that goes.


A heater is usually 1000w or higher, so what is the rating of the solar type.
I do not think the Solar Water Heater uses any Power at all. This is why I have decided to go for Solar Water Heater. I believe the water is directly heated from the heat of the Sun and consumes zero electricity. That is my current understanding of it's operation sha.

sethtsadopp:


Thanks very much for your reply. I will reach out to you for further discussion By the way BSLBATT said they can give me the 20KWh (10KWh x 2 - in parallel) for about $3800 What do you think about the suggestion someone made on buying cells to assemble. I am particular about the high quality of the entire setup that's why I am skeptical about that.

sethtsadopp:


Thanks very much for your reply. I will reach out to you for further discussion (I am in Abuja though). By the way BSLBATT said they can give me the 20KWh (10KWh x 2 - in parallel) for about $3800. Fair price I think...? I don't think importing panels is worth it though, i have not done my calculations on that well. You mentioned JA.. they good? What do you think about the suggestion someone made on buying cells to assemble. I am particular about the high quality of the entire setup that's why I am skeptical about that.

All4good:


Will the 560ah 48v cell, be suitable for a 24v mppt inverter.

That your psychic girlfriend was the best thing to come your way. Better go find her.

eddyline:

Contact of the guy in Jos please

eddyline:

Contact of the guy in Jos please