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Energy Comparison

 
 

1 kWh stored energy means  ...

refer to:  power comparison
lift a mass of 1000 kg 370 m up
10 liter boiling water
39 kg lead-acid batteries 
or 23 kg NiCd batteries
volume of 7200 m3 capacitors
compact car (1000 kg) crusing 
with 305 km/h (190 MpH)
0.11 liter  gasoline
0.15 kg chocolate
25% - 50% of an adults nutrition 
needs per day
or ...

 

a kinetic energy storage device with:
  •   250 kg mass 
  •   0.5 m3 volume 
  •   unlimited number of charge/discharge cycles 
  •   high charge/discharge efficiency