Inverter temperatures & location

I'm interested in all sorts of data and one thing I wanted to know was how having my inverter in my loft would effect temperatures.
I used an IR thermometer today and the casing of my Huawei Sun2000 was 53 degrees C.
Heat sink at the rear was 60 degrees C.

I've been assured by the company who installed it that this is totally normal but I think I'll get a couple of vent tiles put above it in the roof to help get rid of some of the heat.

It's located on my gable end wall.
4.3kwp JA panels, Huawei 3.68kw Hybrid inverter, Huawei 10kw Lunar 2000 battery, Myenergi eddi, South facing array with a 15 degree roof pitch, winter shade.
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Comments

  • QrizB
    QrizB Posts: 13,822 Forumite
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    Interesting!
    I'm interested in all sorts of data and one thing I wanted to know was how having my inverter in my loft would effect temperatures.
    ...
    It's located on my gable end wall.
    Did you measure the ambient temperature in your loft? I've not been into mine today but I imagine it's quite torrid up there.
    N. Hampshire, he/him. Octopus Go elec & Tracker gas / Shell BB / Lyca mobi. Ripple Kirk Hill member.
    2.72kWp PV facing SSW installed Jan 2012. 11 x 247w panels, 3.6kw inverter. 30MWh generated, long-term average 2.6 Os.
    Taking a break, hope to be back eventually.
    Ofgem cap table, Ofgem cap explainer. Economy 7 cap explainer. Gas vs E7 vs peak elec heating costs.
  • EcoScruples
    EcoScruples Posts: 389 Forumite
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    That's the one thing I can't do as I don't have thermometer. It feels stuffy and I'd say at a guess it's about 30 degrees C but until I get a gadget I won't know for sure.

    The battery is in my airing cupboard and that's fine, no real temp from that when in use.
    4.3kwp JA panels, Huawei 3.68kw Hybrid inverter, Huawei 10kw Lunar 2000 battery, Myenergi eddi, South facing array with a 15 degree roof pitch, winter shade.
  • Reed_Richards
    Reed_Richards Posts: 4,122 Forumite
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    Lofts often get too hot in summer.  I have often thought that what is needed is something like the automatic louvre vent you get on greenhouses.
    Reed
  • EcoScruples
    EcoScruples Posts: 389 Forumite
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    This is what I have on my lower roof, I'd have thought they would be enough just to let some hot air out when needed.

    4.3kwp JA panels, Huawei 3.68kw Hybrid inverter, Huawei 10kw Lunar 2000 battery, Myenergi eddi, South facing array with a 15 degree roof pitch, winter shade.
  • paul991
    paul991 Posts: 362 Forumite
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    my loft is  red hot in 7 years has never had a problem with the samil inverter which  has a heatsink and no fan .  
  • EcoScruples
    EcoScruples Posts: 389 Forumite
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    paul991 said:
    my loft is  red hot in 7 years has never had a problem with the samil inverter which  has a heatsink and no fan .  
    How much power do you put through it at its peak?
    I mean they're basically transformers so are designed to run hot so I'm not really concerned.
    I just like to know.
    4.3kwp JA panels, Huawei 3.68kw Hybrid inverter, Huawei 10kw Lunar 2000 battery, Myenergi eddi, South facing array with a 15 degree roof pitch, winter shade.
  • markin
    markin Posts: 3,844 Forumite
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    edited 12 June 2022 at 7:54PM
    The panels shade the roof, As long as its under 60°C it can radiate heat away.

    Operating temperature range   -25 ~ +60°C
    Relative operating humidity   0%RH ~ 100%RH

    No posts from this forum came up in my google search...
    "(16 PV panels mounted about 100mm from the tiles) my average loft temp has dropped to a comfy 22-25 deg C on a hot day. Basically the panels are limiting the solar heat transfer to the tiles, hence a now much cooler attic space......."

  • EcoScruples
    EcoScruples Posts: 389 Forumite
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    Unfortunately my panels aren't on the same roof.
    I'm going to get a remote thermometer to see what happens in the roof space during July/August.
    If it's too hot then I'll install a couple of roof vents.
    4.3kwp JA panels, Huawei 3.68kw Hybrid inverter, Huawei 10kw Lunar 2000 battery, Myenergi eddi, South facing array with a 15 degree roof pitch, winter shade.
  • Magnitio
    Magnitio Posts: 907 Forumite
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    FusionSolar does provide reporting on inverter internal temperatures. This is the graph for mine today, which is located in our garage:

    The tech spec for the inverter states:

    Operating temperature range -25 ~ +60 °C (Derating above 45°C @ Rated output power)

    So you may have some performance issues at higher temperatures.
    6.4kWp (16 * 400Wp REC Alpha) facing ESE + 5kW Huawei inverter + 10kWh Huawei battery. Buckinghamshire.
  • EcoScruples
    EcoScruples Posts: 389 Forumite
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    I assume those stats are in the installer login using a web browser?
    Very useful indeed and will save me using a separate thermometer.
    4.3kwp JA panels, Huawei 3.68kw Hybrid inverter, Huawei 10kw Lunar 2000 battery, Myenergi eddi, South facing array with a 15 degree roof pitch, winter shade.
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