The amount of solar panels and accumulators you need is more.
Factorio solar panels to accumulators ratio.
So the op post is 100 accurate.
If your batteries can t fully charge during the day build more solar.
The optimal ratio is 0 84 21 25 accumulators per solar panel and 23 8 solar panels per megawatt required by your factory this ratio accounts for solar panels needed to charge the accumulators.
Solar panels are producing 100 nominal power 50 of the day.
Since you need more you can not round down so roughly 92 or 92 accumulators per 100 solar panels 23 25 or 46 50 or inversely you get roughly 1 091325249022011 solar panels per accumulator this change means in the long run you need less solar per accumulator.
If they don t last the night build more batteries.
20 regular solar panels or 8 advanced solar panels combined with 14 20 0 7 accumulators gave a stable 1 4mw for 35 sentinels 35 20kw 1 4mw.
This means that you need 1 428 mw of production of solar panels and 100mj of storage to provide 1 mw of power over one day night cycle.
Then when both of those are met build some more.
Your factory needs an average p power.
Or we can say we need 21 25 0 84 accumulators per solar panel.
Every ratio from almost 0 to infinite is valid as long as you have enough panels acc.
It takes 23 8 solar panels to operate 1 mw of factory and charge 20 accumulators to sustain that 1 mw through the night.
Without detailed calculations i believe that solar panels cost more than accumulators.
Or we can say we need 25 solar panels per 21 accumulators.
A single solar panel outputs an average of 42 kw over a day and requires 0 84 accumulators to sustain a constant power output through the night.
Now you have enough for a while.
A close enough ratio is 20 24 1 accumulators to solar panels to megawatts required for example a factory requiring 10 mw can be approximately.
I tried it out in sandbox mode with krastorio 2 and it seems correct.
And each cycle the accumulator charge goes from 0 to 100 and back to 0.