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


Author Message
Andrew_G
Guru

Joined: 18/10/2016
Location: Australia
Posts: 883
Posted: 04:16am 18 May 2026      

Hi Mike and Aaron,
Thanks for your replies.
I'm a complete novice on the solar front but have been playing with MMBasic for 10 years.
I posted to both forums as I assumed some shedders would have an interest in one field.
I know I hadn't been looking at the other forums.

We are 5k east of Melbourne, are fully electric with no gas. The house is to Passivhaus standards (heavily insulated, triple glazed and a heat recovery system).
It has a 'tin' roof, at 15deg facing north. All the unshaded roof has PV panels with micro-inverters. Yes it is a LiFePO4 battery (BYD).
With a full battery at sunset we typically dip to 40% and by playing with the the pool equipment get it back to 100% each day (except yesterday). We are not exporting yet.

I'll go looking at Windy.com.

Cheers,

Andrew