SunEye-360 sensor integration?

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Mark Campanelli

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Nov 21, 2023, 5:08:03 PM11/21/23
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I see that the SunEye-360 shade sensor is now owned by Fluke. This got me wondering if anyone has ever integrated this sensor’s shade data into a pvlib model run?

Will Hobbs

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Feb 12, 2026, 11:47:15 AMFeb 12
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(a few years later...)

Hi Mark, 

I've just started experimenting with something close to this. For now I'm just including far horizon shade, starting from this example [1]. I'm working in a branch of my model workflow repo [2].

For near-shade, I started experimenting with a no longer supported package called pyny3d, which should be able to calculate a simple area-weighted average shade loss on arbitrary polygons by solar azimuth/elevation, but I found what looks like a significant bug [3], so I'm not sure how much time I will keep spending on that path. 

Rather than using SunEye-style "point" measurements, I'm more interested in a workflow for utility scale sites that uses something like geojson polygons to represent strings or whole inverter arrays and then a simplified 3d representation of treelines. Maybe extracting data from [4] or [5], but I haven't spent much time figuring out the tree data. 

Will

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