spARTacus
Well-known member
Not sure, but we could probably throw a guess at it:How many gallons of water, at what head, to power national grid thru night time?
- what is the definition of "national grid" for this exercise?
- what is the average night time use of that grid?
- how many gallons of water head are currently supplying that grid for at night?
- what is the proportion of hydro and non hydro currently supplying that grid for at night?
- how many gallons of water head would be required to replace the non hydro proportion (based on the current hydro vs non hydro proportions)?