The line graph shows usage levels of different types of energy in one country from 2000 to 2020, and projections up to 2050. Overall, total energy use is predicted to rise, with fossil fuels consistently far exceeding green energy, and petrol and oil remaining the dominant source of fuel.
With non-renewables, in the first twenty years, petrol and oil consumption increased from 35 to just over 40 quadrillion units, despite several falls, and is expected to rise to just below 50 quadrillion in 2050. Coal use followed a similar pattern, albeit at a lower rare. It remained relatively stable at around 23 quadrillion units from 2015 and is predicted to increase from 2025, eventually reaching 33 quadrillion. In contrast, use of natural gas has fluctuated continually and is expected to peak at 25 quadrillion units in 2035 before declining.
Notably, more sustainable energy sources are used far less, all remaining close to 5 quadrillion units up to 2020. Nuclear energy has led this sector since 2010 and is expected to continue to do so with a peak of approximately 7 quadrillion units in 2025. Despite a predicted downward trend until 2045, it should regain this level in 2050. Solar and wind are forecast to mirror nuclear’s rising trend, increasing to around six quadrillion units, while hydropower generally declined from 2015 and is projected to remain the lowest at around 3 quadrillion units.