The given graph compares how many units of fuel are consumed regarding 6 types of fuel over the period of 50 years starting from 1980.
It is clear that non-renewable energy are used significantly more than their renewable counterparts, with petrol and oil being consumed the most. In addition, all components is expected to have a rise in consumption in the future.
In 1980, there are 35 quadrillion units of petrol and oil being burned, which is about 8 times more that that of Nuclear, Solar/Wind and Hydropower energy. The figure for Natural Gas is listed at 20 quadrillion units and consumption number for coal was around 16 quadrillion units. From 1980 to present, all types of energy saw a rise in units consumed, with Petrol and oil experiencing the most dramatic rise of 10 quadrillion units
In 2030, more gasoline is expected to be burned, and consumption remains at the forefront at less than 50 million billion units. Although some variation over time is shown, the amount of coal used is predicted to be more than that of natural gas, with about 30 and 25 million units burned respectively. For renewable energy sources, it is predicted that its number will increase by a minimum of just under 5 million units and hydroelectricity will record the lowest energy consumption by 2030.
