by Tanada » Mon 27 Jul 2015, 12:40:12
$this->bbcode_second_pass_quote('Simon_R', 'H')i Tanada
I am sorry, I meant total energy, total electrical energy.
So how many stations to rid ourselves of hydrocarbon energy
thanks
Simon
Ah Okay that is a little different question. Currently Nuclear power produces about 30 Exajoules of energy and humanity uses about 550 Exajoules. See this graph,

The different components break down like this,

So Oil is 170 EJ, Coal is 165 EJ, Natural Gas 115 EJ, and you don't have to worry about the Solar, Wind, Tidal, Biomass, and Hydro.
So based on the earlier calculation 200 new reactors would give you about 30 EJ so to replace Oil you need (170/30)*200=1,134 new reactors.
To replace Coal (165/30)*200=1100 new reactors and that is a check mark because most of them are either direct heating or electricity production and I estimated 2,000 to replace all electricity from all sources including Hydro, Coal and Natural Gas.
To replace Natural Gas which is about half used for heating and half used for electricity production, (115/30)*200=767 new reactors.
Total to replace all FF used today 767+1,100+1,134=3,001 new reactors.
Two key things to keep in mind, fossil fuels are used as feed stock for lots of things that don't involve direct combustion. Secondly we do not have to replace all FF use instantly, it would be a process taking about 20 years if we start next week.