Before we study the Global Warming issue, as a “warm up” we are going to verify if the order of magnitude of the worldwide power of energy production which appears to be 1.5 x E13 [W] in 2008 is correct.
In order to perform this verification, we are going to use the worldwide consumption balances, considering all uses and all energies.
The ton of oil equivalent (TOE) is a consumption unit that corresponds to the quantity of heat released by the combustion of a ton of oil.
One TOE = 11,600 [kWh]
The worldwide energetic power produced in 2005 is: 1.4 x E13 [W]
Explanation:P = 4.38 x E20 / 365 x 24 x 3,600 = 1.4 x E13 [W]
According to the I.E.A. graph, worldwide energy consumption in 2005 amounted to 10,500,000,000 tons of oil equivalent (TOE)
One TOE corresponds to 11,600 [kWh]
One kWh corresponds to 3,600,000 [J]
The worldwide energy consumption in 2005 was therefore:
Q= 10,500,000,000 x 11,600 x 3,600,000 = 4.38 x E20 [J]
The corresponding power was:
P = Q/t
Considering the worldwide energy consumption, the power produced in 2005 was of 1.4 x E13 [W], the estimation of 1.5 x E13 [W] in 2008 is therefore coherent.