JohnKester:


I have the 300L, which has been in use for almost 2 years. it is awesome and I have not had a single issue with it since it was installed.

Just install and forget it while you continue to enjoy your hot water.

Cheers

chairman. I have been trying to reach you. I have some question regarding Hydraform u used in your apartment. Would appreciate if you could reach me

bigrovar:


chairman. I have been trying to reach you. I have some question regarding Hydraform u used in your apartment. Would appreciate if you could reach me on bigbrovar AT G MAIL

Check your mailbox please.

Cheers

JohnKester:


I have the 300 liters mounted on my rooftop and centrally connected to all the bathrooms and kitchen! I can tell you that the water sometimes gets very hot and you have to be careful with the mixer so that your skin does not get scalded.

Imagine the cost of running gas cooker to boil hot water, or the cost to fuel the generator so your heaters can run. This is what I call green living. No need to worry about hot water except of course during those periods in the rainy season when it rains continuously for several days in a row.

Cheers

Hello, even during continuous rainy days , 200L solar water optional 1500w electric heating element attached to the reservoir beside the vaccum tubes is rarely used because i oversized my central solar water heater system. The backup heater is mostly used by those using 100L instead of 200L etc.. If at all i must use the 1500w element attached to my system due to bad weather , its still central , highly efficient compared to the smallest 10L sweet home/ariston unit for just 1 bathroom/kitchen which draws btw 1kw-1.5kw power.. ... I have been mute on this topic but to be sincere , solar water heater is the ideal option .. Its a highly efficient and reliable investment for innovative house owners ! Cheers

kiekie1:


Hello, even during continuous rainy days , 200L solar water optional 1500w electric heating element attached to the reservoir beside the vaccum tubes is rarely used because i oversized my central solar water heater system. The backup heater is mostly used by those using 100L instead of 200L etc.. If at all i must use the 1500w element attached to my system due to bad weather , its still central , highly efficient compared to the smallest 10L sweet home/ariston unit for just 1 bathroom/kitchen which draws btw 1kw-1.5kw power.. ... I have been mute on this topic but to be sincere , solar water heater is the ideal option .. Its a highly efficient and reliable investment for innovative house owners ! Cheers

Central water heater sounds good. Would you still advice this if bathrooms are about 25m apart?

@all... do we think the solar water heater wud fare well in a rented apartment?............am thinking of incorporating it in my build..........
2ndly perchance one wants to switch back to electric heaters, am thinking it should be easy enough to replace it with an external 50ltr ariston type...
cc: georged1, johnkester @all

kiekie1:


Hello, even during continuous rainy days , 200L solar water optional 1500w electric heating element attached to the reservoir beside the vaccum tubes is rarely used because i oversized my central solar water heater system. The backup heater is mostly used by those using 100L instead of 200L etc.. If at all i must use the 1500w element attached to my system due to bad weather , its still central , highly efficient compared to the smallest 10L sweet home/ariston unit for just 1 bathroom/kitchen which draws btw 1kw-1.5kw power.. ... I have been mute on this topic but to be sincere , solar water heater is the ideal option .. Its a highly efficient and reliable investment for innovative house owners ! Cheers

@ kiekie1 Are you selling any brand currently. The ones on Solarshop say Out of stock

pranil:



@ kiekie1 Are you selling any brand currently. The ones on Solarshop say Out of stock

Yes Sir.. You can reach me via my contact as usual ! Thanks

pranil,
i don't know what's happening but any time i quote your post i get banned for twenty four hours.
anyway, i'm sure you already seen testimonials from johnkester who happens to be using a similar brand
as mine from the same supplier.
as for temperatures, recall that earlier in the year i did a comparison between the conventional (ariston)
electric water heater and its solar counterpart. these days, depending on the degree of cloud cover, my
water temperature still gets above 40c which definitely is more than what i need to take a hot bath on
a cold day.
believe me when i say that solar water heating is the next best thing to sliced bread - and if this coming
from a guy who is not trying to sell you anything, it should speak volumes.

earthrealm:
@all... do we think the solar water heater wud fare well in a rented apartment?............am thinking of incorporating it in my build..........
2ndly perchance one wants to switch back to electric heaters, am thinking it should be easy enough to replace it with an external 50ltr ariston type...
cc: georged1, johnkester @all

earthrealm,
like i said earlier in the year, anybody can install a solar hot water system, be it a landlord or
tenant.for the tenant, the major challenge is where to put your water tower in case you want a gravity
feed system. however, that can be overcome by installing a pressurized system. with such a system,
the unit can be installed anywhere on the ground facing the sun. all you need is a pump to supply
the hot water on as needed basis.
its really amazing what the human mind can achieve when you set it to work.

GeorgeD1:
pranil,
i don't know what's happening but any time i quote your post i get banned for twenty four hours.
anyway, i'm sure you already seen testimonials from johnkester who happens to be using a similar brand
as mine from the same supplier.
as for temperatures, recall that earlier in the year i did a comparison between the conventional (ariston)
electric water heater and its solar counterpart. these days, depending on the degree of cloud cover, my
water temperature still gets above 40c which definitely is more than what i need to take a hot bath on
a cold day.
believe me when i say that solar water heating is the next best thing to sliced bread - and if this coming
from a guy who is not trying to sell you anything, it should speak volumes.

I definitely believe you . there is no doubt in mind about the advantages . In India most of the big cities the town planners have made it mandatory for new building spurring faster adoption

Seriously looking at the solarshop flat plate collector as my further research showed me that it is Grundfos OEM brand made in China. I have serious respect for Grundfos as a brand . The price is a deterrent though at 600 K it is worth 25,000 Units of Nepa which the back of envelope calculations say worth heating 2000 Ltrs of water by 10 DEG

Good people. Great Nation. Good morning to all o. Please. abeg una, help me made decision:

Is this a recommended good buy?

I use a Magnum RD4024E inverter/charger in my office. and I have an offer for the following for: 80k each. 16units. We normally regularly have up to 12-14hours electricity daily. But I have also been advised to make sure the batteries don't get dead as that could make them die faster. so, after this purchase, I will probably be working on a solar panel backup. I run a 247 service. and primarily use the batteries for fans , computers, and nothing more. all acs are never on the inverter.

I am particularly interested in these because they are Lifepo4. and the seller confirmed the are still up to 90% good.

Very few cycles used, has more than 90% life left!

210 Ah Lithium Iron Phosphate Battery

4 Cells = 12v Lead acid Battery
8 Cells = 24v (2 X 12v) Lead acid Battery
16 Cells = 48v (4 X 12v) Lead acid Battery

Capacity: 210Ah
Height: 147 mm
Width: 429 mm
Length: 147 mm
Bolt Size: M8
Voltage nominal: 3.2V
Charge voltage cut-off: 3.6V
Discharging cut-off: 2.5V
Chemistry: LiFePO4

OR

This was recommended by one of my Ogas.

12MVR200 MONBAT. This is however, brand new. and will set me back: 130k each. But because it's: lead acid. I am tempted towards the used ones above;

Specifications:
• Nominal Voltage: 12V
• Terminal type: Front
• Grid alloy: Lead-Calcium-Tin alloy
• Plates: Flat Pasted
• Separators: AGM
• Active material: Very high purity lead
• Case and cover: FR ABS class V0
• Carrying Handles: Yes
• Terminal torque: 8 Nm

damola1:
Good people. Great Nation. Good morning to all o. Please. abeg una, help me made decision:

Is this a recommended good buy?

I use a Magnum RD4024E inverter/charger in my office. and I have an offer for the following for: 80k each. 16units. We normally regularly have up to 12-14hours electricity daily. But I have also been advised to make sure the batteries don't get dead as that could make them die faster. so, after this purchase, I will probably be working on a solar panel backup. I run a 247 service. and primarily use the batteries for fans , computers, and nothing more. all acs are never on the inverter.

I am particularly interested in these because they are Lifepo4. and the seller confirmed the are still up to 90% good.

Very few cycles used, has more than 90% life left!

210 Ah Lithium Iron Phosphate Battery

4 Cells = 12v Lead acid Battery
8 Cells = 24v (2 X 12v) Lead acid Battery
16 Cells = 48v (4 X 12v) Lead acid Battery

Capacity: 210Ah
Height: 147 mm
Width: 429 mm
Length: 147 mm
Bolt Size: M8
Voltage nominal: 3.2V
Charge voltage cut-off: 3.6V
Discharging cut-off: 2.5V
Chemistry: LiFePO4

LifePO4 cells are delicate and unless you know what you are doing, they can easily become expensive bricks very quickly. You have to do a very comprehensive capacity test to be sure you are not being sold bricks. Don't take the seller by face value. Can you share with us who your seller is? I am also interested in getting these cells too.

jazzman2:


LifePO4 cells are delicate and unless you know what you are doing, they can easily become expensive bricks very quickly. You have to do a very comprehensive capacity test to be sure you are not being sold bricks. Don't take the seller by face value. Can you share with us who your seller is? I am also interested in getting these cells too.

Thank you very much. The seller is UK based.

Actually here is the link:

http://www.ebay.co.uk/itm/Solar-Battery-Panel-LiFePO4-Cell-s-210ah-Deep-Cycle-12v-24v-48v-Off-Grid-/272773759432?

And no way for me to test as I do not have the resources to. Is there anyway to make the seller verify his claim?

damola1:


Thank you very much. The seller is UK based.

Actually here is the link:

http://www.ebay.co.uk/itm/Solar-Battery-Panel-LiFePO4-Cell-s-210ah-Deep-Cycle-12v-24v-48v-Off-Grid-/272773759432?

And no way for me to test as I do not have the resources to.

You will have to invest in some specialised dc bench power supplies and coulomb counters to properly test, balance and characterise these cells b4 use. Some people may advocate the use of a battery management system (BMS), but very experienced users bottom-balance only and it's been working for them.

jazzman2:


You will have to invest in some specialised dc bench power supplies and coulomb counters to properly test, balance and characterise these cells b4 use. Some people may advocate the use of a battery management system (BMS), but very experienced users bottom-balance only and it's been working for them.

Appreciate you bro.

what you have asked is beyond me. Unless I hire a local to go do a local testing there, and not sure how to even find one.

Quick one: would it be worth it if I have to hire someone to go there and do a test. and what will I be looking for from the specialist actually. if actually it's: 90%. will it really be worth it?

second. what will you recommend overall considering my situation..am I over reacting with these phosphate versions or its the real deal like the guy proclaimed.

damola1:


Appreciate you bro.

what you have asked is beyond me. Unless I hire a local to go do a local testing there, and not sure how to even find one.

Quick one: would it be worth it if I have to hire someone to go there and do a test. and what will I be looking for. if actually it's: 90%. will it really be worth it?

second. what will you recommend considering my situation..

LifePO4 is the future of energy storage if the price continues to fall. It's advantages far outweigh the aging lead-acid technology. But you need to know what you are doing with them. The seller's claims are generally true for LifePO4.

jazzman2:


LifePO4 is the future of energy storage if the price continues to fall. It's advantages far outweigh the aging lead-acid technology. But you need to know what you are doing with them. The seller's claims are generally true for LifePO4.

Is there no way the seller can be asked to do a test and do a youtube upload as proof of efficiency? if so, which test specifically will I ask him to do and on which tool. since he's also an expert in solar business.

What I am going to do with them is basically to power my office as I stated originally. I just want to get 247, no generator dream to work out fine.

damola1:


Appreciate you bro.

what you have asked is beyond me. Unless I hire a local to go do a local testing there, and not sure how to even find one.

Quick one: would it be worth it if I have to hire someone to go there and do a test. and what will I be looking for from the specialist actually. if actually it's: 90%. will it really be worth it?

second. what will you recommend overall considering my situation..am I over reacting with these phosphate versions or its the real deal like the guy proclaimed.

To do the test, you basically hook up each cell to precision dc power supply through a coulomb or energy meter like the trimetric or victron energy meters. But before then, you will have to drain each cell to zero SOC state, which is at 2.5v resting voltage after 24hrs. Set the bench supply to constant current mode @ 0.5C rate. Set an over-voltage cutoff at 3.65V and allow it to charge up until the voltage reaches 3.65v and cuts off. The energy meter should be able to read off how much AH put into the cell. As a confirmation, modify the setup and discharge the cell through the energy meter to a load resistor to 2.5v after resetting the energy meter.

jazzman2:


To do the test, you basically hook up each cell to precision dc power supply through a coulomb or energy meter like the trimetric or victron energy meters. But before then, you will have to drain each cell to zero SOC state, which is at 2.5v resting voltage after 24hrs. Set the bench supply to constant current mode @ 0.5C rate. Set an over-voltage cutoff at 3.65V and allow it to charge up until the voltage reaches 3.65v and cuts off. The energy meter should be able to read off how much AH put into the cell. As a confirmation, modify the setup and discharge the cell through the energy meter to a load resistor to 2.5v after resetting the energy meter.

Thank you. will try to speak to the seller to go through this and give you a feedback.

Or

I will probably ask an installer to go check and give an appropriate feedback.

https://www.renewableenergyhub.co.uk/solar-panel-solar-pv-installers-in-colchester.html

damola1:
OR

This was recommended by one of my Ogas.

12MVR200 MONBAT. This is however, brand new. and will set me back: 130k each. But because it's: lead acid. I am tempted towards the used ones above;

Specifications:
• Nominal Voltage: 12V
• Terminal type: Front
• Grid alloy: Lead-Calcium-Tin alloy
• Plates: Flat Pasted
• Separators: AGM
• Active material: Very high purity lead
• Case and cover: FR ABS class V0
• Carrying Handles: Yes
• Terminal torque: 8 Nm

I will give you @ ₦110,000, if buying up to 4pieces.
08035463411

earthrealm:
@all... do we think the solar water heater wud fare well in a rented apartment?............am thinking of incorporating it in my build..........
2ndly perchance one wants to switch back to electric heaters, am thinking it should be easy enough to replace it with an external 50ltr ariston type...
cc: georged1, johnkester @all

GeorgeD1 has said it all. Nothing more to add. Until you begin to enjoy it, you won't completely understand what we are saying.

I will just paint a little picture:

Imagine hot water on call, without thinking... You don't need to bother whether there was light to run the heater, or if the heater would irredeemably drain your batteries, assuming its connected to your solar setup. Just turn the tap and hot water flows as a natural way of life!

The beauty with this particular system is that it is a standalone, not depending on anything else to run!

I am sure you get the picture now!

Cheers

wow, you guys are seriously convincing me, so on rainy days -- does it still work a lil?...say heats water somehow to 40/50 deg C

If you need cccam account for Tvsat Africa 16e

9e cccam account

Full European cccam on hotbird and hispasat

Cccam for star time 5e

Canal reunion and Zap 36e cccam

Qsat account

Kwese sports decoder

Tiger3000 DECODER

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Whatsapp me +2348062272279

Skype : ancl.sy

kiekie1:


Yes Sir.. You can reach me via my contact as usual ! Thanks

Frankie would be great if you could put up the brand, sizes and cost here . As we can compare with the prices on KONGA and Jumps.

I have the following for sale :

1)iCell 12V 1.5KVA Inverter (75k)
2)Two 200W CSUN solar panels(60k)
3)Circuit breaker (2k each)
Would give out the circuit breaker for free to whoever buys 1 and 2 together

Thank you 08025426934 wale

DUNKA:
Frankie would be great if you could put up the brand, sizes and cost here . As we can compare with the prices on KONGA and Jumps.

Am highly flexible , you have my contacts as I prefer clients calling if solely interested .. Its not all brand you see on jumia et konga ok ... I can always offer you discounts on our pro brands displayed in our solar shop site ..

Solar thermal system(flat plate collector)


Overview:

Flat plate collector solar water heating system

Capacity: 200LDimensions: 620 x 620 x 1650Weight: 85kg RatedVoltage: 220V
Rated Power: 2.0KW
Rated pressure: 0.7MPa
Integration  S&P tank integrates the pumps, expansion tank, controller into a whole, thereby eradicating all risks.Saves installation space.  Improved compact appearanceTriple anti-corrosion protection   Anti-corrosive measures          Enamel Layer         Magnesium Stick         Electrical AnodeMaintenance free inner tank

Its currently worth above 700k but I will offer you discount on 550k displayed in our site ! Cheers

jazzman2:


To do the test, you basically hook up each cell to precision dc power supply through a coulomb or energy meter like the trimetric or victron energy meters. But before then, you will have to drain each cell to zero SOC state, which is at 2.5v resting voltage after 24hrs. Set the bench supply to constant current mode @ 0.5C rate. Set an over-voltage cutoff at 3.65V and allow it to charge up until the voltage reaches 3.65v and cuts off. The energy meter should be able to read off how much AH put into the cell. As a confirmation, modify the setup and discharge the cell through the energy meter to a load resistor to 2.5v after resetting the energy meter.

The seller has not quoted the Max charge and discharge current. The cells pre 2015 were all low rated ( mostly 50 Amps) ( 2.5 KW on 48 V max)

Please check that. Also cycle life was low ( 1500-1600). Nowadays cells with 5000 cycles are available.

Herwin ( china ) gave me a quotation of 1900 USD exworks of brand new for 10 KWH (48 V) including BMS and assemled system - I have also posted the freedomwon pricing earlier

The used ones are coming to almost 2000 Pounds for 48 V plus you have to use cables, MCB, fuses etc.

If you are looking for 24 V Soladin in Ghana is selling Lithium Ion assemblies with high current rating


Charge voltage

Nominal voltage
标称电压 48V
3
ominal capacity
标称容量
208Ah @0.2C Discharge(放电)最小值
210Ah @0.2C Discharge(放电)典型值

Energy
能量
10.08kWh
5
Charge current
充电电流
Standard charge（标准充电）: 0.2C Approx 6 Hour（约6 小时）
Rapid charge（快速充电）: 0.5C Approx 1.5 Hour（约3 小时）
6
Standard Charging method
标准充电方法
0.2 CC(constant current) charge to 58.4V, then CV(constant voltage 58.4V) charge
till charge current decline to 0.02C
0.2C CC (恒流) 充电至58.4V,再 CV (恒压58.4V) 充电直至充电电流 0.02C.
7
Max. charge current
最大充电电流
100A
8
Max. discharge current
最大放电电流
100A
9
Max.Pulse Current
最大脉冲电流 300A(<3S)
10
Discharge cut-off voltage
放电截止电压 40V(常规)
11
cell & Method
电芯组装方式
(3.2V30Ah) 16S7P
12
Operating temperature

pranil:


The seller has not quoted the Max charge and discharge current. The cells pre 2015 were all low rated ( mostly 50 Amps) ( 2.5 KW on 48 V max)

Please check that. Also cycle life was low ( 1500-1600). Nowadays cells with 5000 cycles are available.

Herwin ( china ) gave me a quotation of 1900 USD exworks of brand new for 10 KWH (48 V) including BMS and assemled system - I have also posted the freedomwon pricing earlier

The used ones are coming to almost 2000 Pounds for 48 V plus you have to use cables, MCB, fuses etc.

If you are looking for 24 V Soladin in Ghana is selling Lithium Ion assemblies with high current rating


Charge voltage

Nominal voltage
标称电压 48V
3
ominal capacity
标称容量
208Ah @0.2C Discharge(放电)最小值
210Ah @0.2C Discharge(放电)典型值

Energy
能量
10.08kWh
5
Charge current
充电电流
Standard charge（标准充电）: 0.2C Approx 6 Hour（约6 小时）
Rapid charge（快速充电）: 0.5C Approx 1.5 Hour（约3 小时）
6
Standard Charging method
标准充电方法
0.2 CC(constant current) charge to 58.4V, then CV(constant voltage 58.4V) charge
till charge current decline to 0.02C
0.2C CC (恒流) 充电至58.4V,再 CV (恒压58.4V) 充电直至充电电流 0.02C.
7
Max. charge current
最大充电电流
100A
8
Max. discharge current
最大放电电流
100A
9
Max.Pulse Current
最大脉冲电流 300A(<3S)
10
Discharge cut-off voltage
放电截止电压 40V(常规)
11
cell & Method
电芯组装方式
(3.2V30Ah) 16S7P
12
Operating temperature

The poster, Damola, mentioned they are CALB cells. You can check online for their specs.

pranil:


The seller has not quoted the Max charge and discharge current. The cells pre 2015 were all low rated ( mostly 50 Amps) ( 2.5 KW on 48 V max)

Please check that. Also cycle life was low ( 1500-1600). Nowadays cells with 5000 cycles are available.

Herwin ( china ) gave me a quotation of 1900 USD exworks of brand new for 10 KWH (48 V) including BMS and assemled system - I have also posted the freedomwon pricing earlier

The used ones are coming to almost 2000 Pounds for 48 V plus you have to use cables, MCB, fuses etc.

If you are looking for 24 V Soladin in Ghana is selling Lithium Ion assemblies with high current rating


Charge voltage

Nominal voltage
标称电压 48V
3
ominal capacity
标称容量
208Ah @0.2C Discharge(放电)最小值
210Ah @0.2C Discharge(放电)典型值

Energy
能量
10.08kWh
5
Charge current
充电电流
Standard charge（标准充电）: 0.2C Approx 6 Hour（约6 小时）
Rapid charge（快速充电）: 0.5C Approx 1.5 Hour（约3 小时）
6
Standard Charging method
标准充电方法
0.2 CC(constant current) charge to 58.4V, then CV(constant voltage 58.4V) charge
till charge current decline to 0.02C
0.2C CC (恒流) 充电至58.4V,再 CV (恒压58.4V) 充电直至充电电流 0.02C.
7
Max. charge current
最大充电电流
100A
8
Max. discharge current
最大放电电流
100A
9
Max.Pulse Current
最大脉冲电流 300A(<3S)
10
Discharge cut-off voltage
放电截止电压 40V(常规)
11
cell & Method
电芯组装方式
(3.2V30Ah) 16S7P
12
Operating temperature

@Pranil

Can you confirm if these batteries develop any form of memory over time?

Cheers