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Energy and greenhouse gas tables |
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1015 (106 x 109)
| peta (million billion) | P | 1012 (103 x 109)
| tera (thousand billion) | T | 109 giga
| (billion) | G | 106
| mega (million) | M | 103
| kilo (thousand) | k | 102
| hecto | h | 101
| deca | da | 100
| – (e.g. gram) – | - | 10-1
| deci | d | 10-2
| centi | c | 10-3
| milli | m | 10-6
| micro | µ | 10-9
| nano | n | | 10-12 | pico | p | | 1015 grams (petagram)
| gigatonne (Gt) | 1012 grams
| megatonne (Mt) | 109 grams
| kilotonnes (kt) (103 tonnes) | | 106 grams | 1 tonne
| kg/GJ (103 g/109 J)
| Gg/PJ (109 g/1015 J) |
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| | Unit of energy | joule (J) | | Unit of power (rate of energy usage) | Watt (W) | | 1 Watt =
| 1 joule s per second | 3600 watt-seconds =
| 1 watt-hour (3600 seconds in one hour) | 1 watt-hour =
| 3600 joules | 1000 watt-hours =
| 1 kilowatt hour | | 1 kWh = | 3.6 x 106 joules = 3.6 MJ |
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| | kWh to J
| kWh x 3.6 x 106 | joules | | J to kWh | J x 0.278 x 10-6 | kWh | kWh to MJ
| kWh x 3.6 | MJ | MJ to kWh
| MJ x 0.278 | kWh | kWh to GJ
| kWh x 3.6 x 10-3 | GJ | GJ to kWh
| GJ x 278 | kWh | | kWh to PJ | kWh x 3.6 x 10-9 | PJ | |
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