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Global energy consumption has risen dramatically over the past century and continues to grow. Understanding who uses energy, how much they use, what types they use and why these patterns differ is central to the Edexcel B Paper 3 topic on consuming energy resources. This lesson examines the complex relationship between energy consumption, economic development, and energy security.
Total global primary energy consumption in 2023 was approximately 580 exajoules (EJ) — a figure that has roughly tripled since 1970 and continues to rise.
| Energy Source | Share of Global Primary Energy | Trend |
|---|---|---|
| Oil | 31% | Slowly declining share, but absolute consumption still rising |
| Coal | 27% | Declining in HICs, but still rising in parts of Asia |
| Natural gas | 24% | Growing — seen as a "transition fuel" |
| Hydroelectric | 7% | Steady growth, mainly in Asia and Africa |
| Renewables (solar, wind, etc.) | 7% | Fastest-growing sector — doubled between 2019 and 2023 |
| Nuclear | 4% | Relatively stable; some countries expanding, others phasing out |
Despite the rapid growth of renewables, fossil fuels still provide over 80% of global energy. This dominance explains why the world is struggling to meet its climate targets — reducing emissions requires fundamentally changing the global energy mix.
Energy consumption varies enormously between countries, and the pattern is closely linked to levels of economic development.
There is a strong positive correlation between a country's Gross Domestic Product (GDP) per capita and its energy consumption per capita:
| Country | Energy Consumption Per Capita (GJ) | Classification | Key Factors |
|---|---|---|---|
| Qatar | ~800 | HIC | Tiny population, massive oil/gas production, air conditioning, desalination |
| USA | ~280 | HIC | Car culture, large homes, energy-intensive industry, high living standards |
| Germany | ~150 | HIC | Industrial economy, but strong energy efficiency policies |
| China | ~100 | NEE | Rapid industrialisation; now the world's largest total energy consumer |
| Brazil | ~60 | NEE | Significant HEP; growing economy; large population |
| India | ~25 | NEE | 1.4 billion people; rapid growth but still low per capita consumption |
| Nigeria | ~5 | LIC | Large population with limited energy infrastructure; many rely on traditional biomass |
| Ethiopia | ~3 | LIC | One of the lowest per capita consumption rates; majority rural population |
Exam Tip: Always distinguish between total energy consumption (which is highest for large, populous countries like China, the USA and India) and per capita consumption (which is highest for wealthy, often small, countries like Qatar and Iceland). Paper 3 questions often require you to interpret graphs showing one or both measures.
Several factors explain why energy consumption varies between countries:
The strongest predictor of energy consumption. Wealthier countries have more energy-intensive industries, more transport infrastructure, higher ownership of appliances and greater use of heating and cooling systems.
Different countries have very different energy mixes — the proportion of each energy source in their total consumption.
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