Glad to join this forum . I need a list of requirements of what’s needed to put solar panel in my house . The items are as follows; 1 inverter Lg refrigerator 3 fans 2 )55 inches tv 5 led lights Note i hv tried to calculate exactly what i need , if anyone can help make this calcution , i will be most grateful.

Good to have you and other kobocitizens join us on this platform. An expert will attend to your request shortly. @mank1234

Enyinne how many fans and what is the power consumption of each.

numobong 3 fans and 2 tvs , one inverter LG fridge, and 5 led lights

Please help with solar energy requirement for my home

mank1234

Enyinne
Condition 1: If fridge is to be used from 10am to 4pm except when connected to grid:
1.5kW 24V inverter
60A charge controller
1500W of solar panel
200AH 24V battery

Do 2x charge controller, solar panel, and battery if condition 1 is not true.

numobong

mank1234 please can you show how you arrived at this cos in your discussion here you only showed how to calculate withctoral monthly energy consumption.

Enyinne

mank1234 thanks for this response.pls how long can this appliance run daily ? And whats the best type of battery that will last more ,lithium or Gel . Your appreciated.

numobong

Enyinne totally off-grid?

Edit: solution has already been proffered by mank1234u

Enyinne

numobong thanks for assisting

mank1234

numobong it’s guess from experience previous work. I’ll do calculation for this later, here and in the discussion you referenced.

mank1234

Enyinne
It should take (minimum) as follows
Both television 4hrs
Fans (all through the day and 6hrs at night)
Lights - as needed
Fridge (6hrs @ day)
Edit1: Felicity lifepo4 24V is recommended.

Edit2: if you want an indept analysis, provide the energy rating of all the appliances, and how long you want to run them.

administrator

@Enyinne your discussion was renamed and placed in appropriate category to reflect the content and attract contributors. Thank you.

mank1234

Diversity as used below is probability that two or more identical appliances will be ON at the same time.

2 television @ 100W each for 4 hours @ 0.9 diversity factor = 2×100×4 = 800Whr
Fridge @ 150W for 6hrs = 150 × 6 = 900Whr
3 fans @ 75W each for 18hrs @ 0.5 diversity factor = 3 × 75 × 18 × 0.5 = 2025Whr
led bulbs, quantity not stated. We will assume 10 led bulbs of 5W each ON for average of 10 hrs (some will be ON for longer period, some for shorter period) diversity factor 0.8 = 10 × 5 × 10 × 0.8 = 400Whr

Total requirement for load is 800 + 2025 + 900 + 800 = 4125Whr.
Assume inverter self consumption of 25W * 24hrs = 600Whr.
Note charging loss is ignored since lifepo4 battery was opted for.
Total energy require from solar panel = 4125 + 600 = 4725W.
Solar panel required = 4725/3 = 1,575W

Inverter fridge does not require high startup power so 1.5kVA or 1kW inverter at 24V is enough for the setup.

A 60A 24V solar charge controller can handle 1500W solar panel.

200AH 24V is 4800Whr which can confortably carry both TV, all 3 fans and the lights for 10hrs when fully charged.

Enyinne

mank1234 sir , do u have an idea of how long lasting the felicity lithium battery can go if all things being equal .

mank1234

Enyinne not really. Most lifepo4 batteries have cycle life of 7-10years - that is when the capacity of the battery is expected to be 90%.
A 200AH lifepo4 battery is expected to have 180AH after 7-10years if used according to the specification sheet.

Enyinne

mank1234 ok thanks so much .

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