question

kinzigsegler avatar image
kinzigsegler asked

Solar Irradiance shown on VRM data export

Hello,

I am using a Multiplus 2 GX working fine.
Since some days I noticed two new columns at the VRM data export table: 'Solar Irradiance' and 'Solar Irradiance Forecast' which both shows values on each full hour. I am not using any irradiance meter.
So what is the base for this nice service?
Shows it values optimised for my geographical position or just a value for Central Europe?
Is it possible to read out this data live on the VRM (adwanced) dashboard?

Thanks for your informanition



multplus 2 gx
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3 Answers
PeterM avatar image
PeterM answered ·

Could some please define these two new terms , also just noticed it - particularity the forecast one - is it the value expected for the next hour , next day same time ? Where is it sourced from ? Position Granularity of the data ?

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PeterM avatar image
PeterM answered ·

I managed to plot the Victron Irradiance and forecast with my measured irradiance ( tilted 23 deg ) below using the custom widget .


1682092292802.png


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thanar avatar image
thanar answered ·

OK, also chiming in here... Anyone knows how these values get calculated, or which source data are they based on?

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ejrossouw avatar image ejrossouw commented ·

@thanar No need to chime when you can search. https://community.victronenergy.com/questions/216543/new-vrm-feature-solar-forecast.html

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thanar avatar image thanar ejrossouw commented ·
Happy there’s a proper reply on this old question, even a year later.
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