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Modifier
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Primary Energy examples
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Power examples
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name
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value
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Unit
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Example, energy sufficient to
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Unit
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Example, about the power of:
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E
|
exa
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1018
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Exa.Joule
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Australia's annual crude oil consumption = 1.5 Exa.Joules.
Australia's annual coal
consumption = 1.75 Exa.Joules.
Solar energy falling on Australia in two minutes = 1 Exa.Joule
|
Exa.Watt
|
|
|
P
|
peta
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1015
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PetaJoule
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Australia's annual natural gas consumption = 800 Peta.Joules.
|
PetaWatt
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peak solar power falling on Australia is over 8 PetaWatts
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|
T
|
tera
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1012
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TeraJoule
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medium factory gas use in one year.
|
TeraWatt
|
peak solar power falling on all Australian buildings
(ie 20 times electrical requirements)
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|
|
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100 GJ
|
An average car will use about 50 GJ of fuel per year.
|
100 GW
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peak solar power falling on Australian home roofs is about 400 GW
the total Australian maximum electrical demand is around 50 GW.
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10 GJ
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gas consumption of efficient home (10-30 GJ) in one year
|
10 GW
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peak electrical demand of NSW
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|
G
|
Giga
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109
|
GigaJoule
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solar energy falling on a Hobart home roof in one day in Winter.
|
GigaWatt
|
medium-large power station.
total peak output of Australia's domestic solar water heaters.
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|
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100 MJ
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coal used to supply average home with electricity for one day.
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100 MW
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small power station / large cogeneration plant
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|
|
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10 MJ
|
a ten minute shower.
a person’s food energy for 1 day.
a cup of petrol.
(but don’t try surviving on petrol!!)
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10 MW
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largest factories
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M
|
Mega
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106
|
Mega.Joule
|
run a large TV or a PC for one hour
|
1 MegaWatt
|
largest city building, medium hospital, medium-large factory.
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|
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100 kJ
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make a cup of tea with a gas kettle. primary energy to charge transistor battery.
|
100 kW
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electricity for medium office building. peak solar power on same building
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|
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10 kJ
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10 kW
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large electric water heater, peak demand of medium-large home.
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k
|
kilo
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103
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kiloJoule
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|
1 kiloWatt
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domestic heater or air-conditioner. The peak solar energy falling on 1mē of the earth.
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|
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100
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100 Joule
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100 Watts
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desktop computer, incandescent light, person standing.
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10
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10 Joule
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10 Watts
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notebook computer, VCR,
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-
|
-
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(=1)
|
Joule
|
|
1 Watt
|
transistor radio.
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