A nice feature would be to have the solar forecast included as a sensor in the Buienradar integration.
From the website:
www.buienradar.be/belgie/zon-en-wolken/zonradar/24uurs
In the background it is using an open API:
There is a 24h with a 1h interval and a 3h with a 5m interval forecast available. Returns solar power percentages (values from 0 to 100).
This sensor could be very useful to be able to estimate PV-panel production for current day. And for home batteries it could be used to deside to charge your batteries during night at low tariff when there is no or not enough sun forecasted for the next day.
