Is there a website that.....

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IanHx
Posts: 26
Joined: Sat Sep 30, 2023 5:12 pm
Location: Warwickshire

... tells you what % of max power you should be generating based on the local weather ?

For example today - bright sunshine through hazy sky - only seeing 66% of max rated value.
Would be great if there was some sort of "sun index" so that we could tell if its just atmospherics affecting everyone locally, or a specific issue with my panels.
Dave Foster
Posts: 1256
Joined: Thu Oct 13, 2022 7:21 pm

Have a look at Solcast.com, it's more of a commercial site but they let you set up as a home user and it gives a pretty accurate assessment of the solar expectations for your system based on the local atmospherics.

https://solcast.com/free-rooftop-solar-forecasting
IanHx
Posts: 26
Joined: Sat Sep 30, 2023 5:12 pm
Location: Warwickshire

Thanks, I'll have a look when I've fished out the relevant technical details !
IanHx
Posts: 26
Joined: Sat Sep 30, 2023 5:12 pm
Location: Warwickshire

Found another one that also seems useful - solar.meteosource.com.
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