Panel temperature

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I’d often wondered what sort of temperature my panels reached on a hot day. I’ve just taken a reading while I was cleaning the gutters out....drumroll......83C.
4kWp (black/black) - Sofar Inverter - SSE(141°) - 30° pitch - North Lincs
Installed June 2013 - PVGIS = 3400
Sofar ME3000SP Inverter & 5 x Pylontech US2000B Plus & 3 x US2000C Batteries - 19.2kWh

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  • mmmmikey
    mmmmikey Posts: 1,640 Forumite
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    I hope you fried a couple of eggs on them while you were up there :)
  • 1961Nick
    1961Nick Posts: 2,070 Forumite
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    mmmmikey wrote: »
    I hope you fried a couple of eggs on them while you were up there :)

    They kept sliding off....:(

    I’ve just taken the car roof temperature for comparison....79C
    4kWp (black/black) - Sofar Inverter - SSE(141°) - 30° pitch - North Lincs
    Installed June 2013 - PVGIS = 3400
    Sofar ME3000SP Inverter & 5 x Pylontech US2000B Plus & 3 x US2000C Batteries - 19.2kWh
  • 1961Nick
    1961Nick Posts: 2,070 Forumite
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    83°C should translate to a 29% drop in performance (83-25 x 0.5).

    3685w x .71 = 2616w

    Today's peak generation 2910w

    Best hour's generation 2.88 kW
    4kWp (black/black) - Sofar Inverter - SSE(141°) - 30° pitch - North Lincs
    Installed June 2013 - PVGIS = 3400
    Sofar ME3000SP Inverter & 5 x Pylontech US2000B Plus & 3 x US2000C Batteries - 19.2kWh
  • Martyn1981
    Martyn1981 Posts: 14,762 Forumite
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    1961Nick wrote: »
    They kept sliding off....:(

    I’ve just taken the car roof temperature for comparison....79C

    What colour is the car?

    I've noticed there is a huge difference between stroking a black dog v's a light coloured one, and our white cat with large black splodges feels cool - hot - cool to the hand as you stroke him outside.
    Mart. Cardiff. 5.58 kWp PV systems (3.58 ESE & 2.0 WNW)

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
  • 1961Nick
    1961Nick Posts: 2,070 Forumite
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    Martyn1981 wrote: »
    What colour is the car?

    I've noticed there is a huge difference between stroking a black dog v's a light coloured one, and our white cat with large black splodges feels cool - hot - cool to the hand as you stroke him outside.
    MY car is tanzanite which is a dark navy blue...not too dissimilar to the tone of the panels

    I wouldn't want to be a pigeon nesting underneath them!:D
    4kWp (black/black) - Sofar Inverter - SSE(141°) - 30° pitch - North Lincs
    Installed June 2013 - PVGIS = 3400
    Sofar ME3000SP Inverter & 5 x Pylontech US2000B Plus & 3 x US2000C Batteries - 19.2kWh
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