Solar Panel “Farm” and astronomical seeing

Forums General Discussion Solar Panel “Farm” and astronomical seeing

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  • #625784
    Alan Snook
    Participant

    Does anyone know what effect 300 acres of solar panels starting 500 metres away has on seeing? The land is currently agricultural arable.

    #625788
    Dawson
    Participant

    I suspect no one definitively knows. You may have to conduct experiments with an existing solar farm.

    I suspect day time seeing could be impaired as thermals rise off it.

    The panels and metal frame structure will release heat quite quickly in the winter I suspect, but large areas of concrete, tarmac, buildings etc will release their heat more slowly which could impair seeing conditions.

    Security lighting at night could also be problematic.

    #625805
    Dominic Ford
    Keymaster

    I agree with James. The internet suggests solar farms can reach ~50C on a summer afternoon, which I imagine would have a significant effect on day-time seeing on sunny days. But I agree with James that their thermal inertia is likely to be quite low, so I would expect the panels to cool off quickly at dusk and pose little problem. But in the absence of empirical data, that’s just my guess!

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