The toe is sometimes used for large amounts of energy, as it can be more intuitive to visualise, say, the energy released by burning 1000 tonnes of oil than 42,000 billion joules (the SI unit of energy).
Multiples of the toe are used, in particular the megatoe (Mtoe, one million toe) and the gigatoe (Gtoe, one billion toe).
It is important to note that toe should be used carefully when converting electrical units - for instance, BP's 2007 report used a factor of 38% efficiency (the average efficiency of OECD thermal generating units in 2006), or roughly 16 GJ per toe, when converting kilowatt-hours to toe.
Fortunes deep under ; Find your gold and keep it too. With a spate of new discoveries in the Krishna-Godavari basin, petro engineers are the need of the hour.
Jan 12, 2009; There are a number of reasons why we need to be incredibly upbeat about the petroleum and petrochemical sector even as we observe...