Lowest Price node may calculate saving based on something.
Maybe:
Assume you spend 1 kWh per hour in the whole period. That is in total X kWh for the average price on the same hours.
Then divide X on the number of hours on, and multiply with the average price for these hours.
Lowest Price node may calculate saving based on something.
Maybe: Assume you spend 1 kWh per hour in the whole period. That is in total X kWh for the average price on the same hours. Then divide X on the number of hours on, and multiply with the average price for these hours.