Weather has no impact on soler forecast?

Hi, noted that for today, solar forecast is as high as for a regular sunny day.
weather in VRM Portal shows rain (and weather forecast is 100% rain for the day).
Is this really not taken into account when predicting the solar production?

Welcome to the community forums.

I think the weather is taken into account, however it may be one of the trickiest factors to take into account.

At least for my case, the curve usually looks “the same”, but when looking at it in detail it’s much lower values, the graphs axis is just scaled different.

My prediction on a sunny day is usually ~ 80-90 kWh, today it is 47 kWh - and from passt experience these values are quiet accurate usually something like 5kWh off at worst.

Check the values bottom right, they should be much lower depending on weather:

I have to say that too. Despite all my criticism of the consumption forecast, the production forecast is really, really good and takes the weather into account very, very well.

@dfaber Weather is definitely not considered enough in the solar forecast!

Here is the weather for today and the next two days.

And the solar forecast:

The PV doesn’t even produce 10 kWh a day in this weather, the forecast is for more than 20 kWh.

This was SOC today, tomorrow it will be not better:


But the SOC forecast is this:

Did you set a proper location in VRM, so the system knows which weather to use?

Yes!

Solar-forecast doesn’t get better…: