Prediction of solar PV output for day(s) ahead.


Author Message
Andrew_G
Guru

Joined: 18/10/2016
Location: Australia
Posts: 883
Posted: 10:49pm 17 May 2026      

G'day,
I'm seeking views on the prediction of solar PV output for day(s) ahead.
(I'm new to this section of TBS, I normally lurk on the Microcontroller and PC projects section.)

We have had a new solar system for a few months (14kW of panels, 8kW inverter, 16.6 kWh battery).  
Last night was the first time we dropped to minimum SoC (set at 15%) and we had to import a fair bit of power.
At sunset we only had 90% in the battery - I could have held back on some consumption.
That prompted me to Google sites that helped predict solar output based on weather forecasts.
The one that caught my eye was 'OpenWeather'. I already use it for weather (current and forecast) as it outputs in JSON - which I can use via my Webmite.

Do any of you have any comments or suggestions?

Cheers,

Andrew