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Automating skylights with blinds to block direct sun (lemmy.world)

submitted 1 year ago by sytone@lemmy.world to c/homeassistant@lemmy.world

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Looking for a solution on how to determine when to close and open skylight blinds. I can just do hours of the day but would like it to be a bit more intelligent.

Anyone looked at using something like the math used for solar panels? I was thinking that when max solar power was generated in the summer that is when they are closed to keep heat out.

Ideas?

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[–] NeoNachtwaechter@lemmy.world 1 points 1 year ago

Just a few ideas for very easy math:

Start with the sunrise and sunset times. You can have them automatically for your location.

Calculate the middle between these: this is your best "noon" time (free of DST etc).

Calculate the duration between these: the longer it is, the warmer.