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how to calculate number of photo volatic panels and number of batteries required

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  • how to calculate number of photo volatic panels and number of batteries required

    i could not understand this conversion please help me in understandind this
    regards mudassar khan







    5 Houses:
    Power needed during the day = 50400Wh = 50,4 KWh.
    Average radiation in Lahore Pakistan is 5320 WH/m2/d
    Solar panels needed to produce 50,4 KWh.
    We use panels: Polycrystalline 240Wp / 30.66-36.84V DC out I max: 7.83 Amps.
    Dimensions: netto: 1370x940 mm = 1,28 M2
    240Wp/1,28 = 187,5 Wp per m2 at a radiation of 1000 W/m2.
    Radiation in Lahore Pakistan = 5320 W/m2
    So power production per m2 = 187,5Wp x 5320/1000 = 187,5 x 5,32 = 997,5 Wp / m2.
    Power production must be 504000Wp/997,5 = 50,52 M2 solar panel needed.
    240Wp = 1,28 m2.
    50,52/1,28 = 39,47 panels >> 40 solar panels of 240Wp = 9600Wp total.
    Suggested already to place 10.000 Wp.
    Material needed:
    We calculate with 48V battery bank:
    40 pcs solar panels 240Wp.
    300 mtr PV solar 4 mm2 cables.
    20 male Tyco PV cable splitters
    20 female Tyco PV cable splitters
    5 pcs Solar battery charger EPIP-602 50Amp. 48V-50 Amp. Each battery charger 8
    pcs 240Wp panels (4 x parallel / 2 x pcs in serial)
    Set cables to connect the solar chargers to the batteries
    64 pcs AWG Deep cycle batteries 12V-150AH
    Battery bank 48 V 4 pcs in serial 12V-150Ah.
    Per bank 48 x 150AH = 7200Wp.
    Power backup needed for the night is 22900 Wh. When you take this power away from the
    batteries they may not dis-charge more than 20%.
    Needed battery bank capacity is 22900 /20%x100% = 114500 Wh/7200 = 15,9 = 16 banks
    of 4 pcs 12V-150AH = total: 64 pcs batteries.
    Set cables to connect all the batteries.
    3 pcs DC to AC sine wave inverters Type PM-3000SI. Incl AC charger.
    Power master inverter s 48V 3000 Watt each. Type: PM-3000SI. AC outL: 220V/380V
    50 Hz. Continue power 3 x 3000Wp en short surge power max 3 x 6000Wp.
    Set cable to connect the DC Ac inverters to the battery bank.



    and for
    Garage unit.
    Power needed during the day = 16100Wh = 16.1 KWh.
    Average radiation in Lahore Pakistan is 5320 WH/m2/d
    Solar panels needed to produce 16,1 KWh.
    We use panels: Polycrystalline 240Wp / 30.66-36.84V DC out I max: 7.83 Amps.
    Dimensions: netto: 1370x940 mm = 1,28 M2
    240Wp/1,28 = 187,5 Wp per m2 at a radiation of 1000 W/m2.
    Radiation in Lahore Pakistan = 5320 W/m2
    So power production per m2 = 187,5Wp x 5320/1000 = 187,5 x 5,32 = 997,5 Wp / m2.
    Power production must be 16100Wp/997,5 = 16,14 M2 solar panel needed.
    240Wp = 1,28 m2.
    16,14/1,28 = 12,6 panels >> 14 solar panels of 240Wp = 3360 Wp total.
    Suggested already to place 3.000 Wp.
    Material needed:
    We calculate with 48V battery bank:
    14 pcs solar panels 240Wp.
    100 mtr PV solar 4 mm2 cables.
    7 male Tyco PV cable splitters
    7 female Tyco PV cable splitters
    2 pcs Solar battery charger EPIP-602 50 Amp. 48V-50 Amp.
    Each battery charger: A: 8 panels ( 4x parallel of 2 pcs in serial) B: 6 pcs 240Wp panels (3
    x parallel / 2 x pcs in serial)
    Set cables to connect the solar chargers to the batteries
    16 pcs AWG Deep cycle batteries 12V-150AH
    Battery bank 48 V 4 pcs in serial 12V-150Ah.
    Per bank 48 x 150AH = 7200Wp.
    Power backup needed for the night is 6125 Wh. When you take this power away from the
    batteries they may not dis-charge more than 20%.
    Needed battery bank capacity is 6125 /20%x100% = 30.625 Wh/7200 = 4 = 4 banks of 4
    pcs 12V-150AH = total: 16 pcs batteries.
    Set cables to connect all the batteries.
    1 pcs DC to AC sine wave inverters Tye PM-3000SI. Incl AC charger.
    Power master inverter s 48V 3000 Watt each. Type: PM-3000SI. AC outL: 220V/380V
    50 Hz. Continue power 3 x 3000Wp en short surge power max 3 x 6000Wp.
    Set cable to connect the DC Ac inverters to the battery bank.

  • #2
    Re: how to calculate number of photo volatic panels and number of batteries required

    You might get 150W per sq. meter of panel for 5 hours/day.

    The avg. US house takes 1 kw with peak reaching 10x or 20x higher.

    The energy storage required depends on the number of consecutive cloudy days.

    Comment


    • #3
      Matching 12V/150 AH Batteries to 48V Solar UPS

      Sir/Madam,

      I have 12/150 AH Batteries. According to the Solar Inverter design, System Volatage:48V; Battery Bank Capacity: 600 AH. How it could be matched. Kindly direct me connecting it by series of Parallel way in order for me to reach 48V/600AH. Thanks.

      Comment


      • #4
        Re: Matching 12V/150 AH Batteries to 48V Solar UPS

        Originally posted by Victor View Post
        Sir/Madam,

        I have 12/150 AH Batteries. According to the Solar Inverter design, System Volatage:48V; Battery Bank Capacity: 600 AH. How it could be matched. Kindly direct me connecting it by series of Parallel way in order for me to reach 48V/600AH. Thanks.
        4 12 V batteries connected in series will be 48 V. That stack will have the same 150 Ah capacity as the individual batteries.

        4 such stacks connected in parallel will give 600 Ah capacity. So you need 16 batteries.

        Comment


        • #5
          Re: Matching 12V/150 AH Batteries to 48V Solar UPS

          Originally posted by Victor View Post
          Sir/Madam,

          I have 12/150 AH Batteries. According to the Solar Inverter design, System Volatage:48V; Battery Bank Capacity: 600 AH. How it could be matched. Kindly direct me connecting it by series of Parallel way in order for me to reach 48V/600AH. Thanks.
          kindly provide with type of Battery is recommeted & which type you used (I Mean to say design of battery)

          Comment


          • #6
            Here is a tutorial that you may find useful



            and this

            Comment

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