AP Syllabus focus:
‘Energy resource use is unevenly distributed: developed countries typically consume more energy per person than developing countries.’
Energy use differs sharply among countries because of income, infrastructure, and economic structure. AP Environmental Science emphasizes comparing per capita energy consumption, understanding why disparities exist, and recognising environmental and equity implications.
Core idea: uneven per-person energy use
Countries are often grouped by development level to compare typical patterns of energy consumption per person and associated drivers.
World map showing primary energy consumption per capita (kWh per person) by country. The spatial pattern makes the global inequality in energy use easy to see at a glance, with many higher-income regions clustering at higher per-capita values. Source
Developed country: A nation with relatively high average income, industrial/service-based economies, and widespread access to infrastructure such as electricity, transportation, and health care.
Developed countries tend to use more energy per person because more activities are energy-intensive (heating/cooling, private vehicles, air travel, high material consumption, and commercial/industrial services).
Developing country: A nation with lower average income and industrial capacity, where access to reliable electricity, modern fuels, and infrastructure may be limited and where economies may rely more on agriculture or informal sectors.
Developing countries often use less energy per person but may experience rapid growth in demand as electrification expands and industries develop.
Key metric: comparing energy use fairly
Total national energy use can be misleading because populations differ.
Bar-chart style comparison of per-capita energy consumption by country (reported in kg of oil equivalent per person). This kind of visualization highlights why per-capita metrics are better than total national energy use for comparing typical individual energy demand across countries. Source
Per capita energy use allows more meaningful comparisons across countries.
= average energy use per person (commonly expressed in gigajoules per person per year or similar)
= energy used in a country over a time period (e.g., per year)
= number of people in the country
Per capita comparisons connect closely to lifestyle, infrastructure, and access to energy services, not just how many people live in a place.
Typical patterns in developed countries
Developed countries generally show high per capita energy consumption due to both household and economic factors.
Major drivers
Transportation systems dominated by personal vehicles and long-distance freight
Large building stock with heating and air conditioning needs
Energy-intensive consumption of goods (manufacturing supply chains, packaging, shipping)
High electricity demand from appliances, electronics, and data use
Extensive industrial and commercial activity (even when heavy industry is partly offshored)
What “high energy use” often looks like
Higher electricity use per household and more devices
Greater reliance on private mobility (cars, aviation)
Higher demand for constant, reliable power (hospitals, finance, retail, telecommunications)
Typical patterns in developing countries
Developing countries often have lower per capita energy use, but patterns vary widely between urban and rural areas and among income groups.
Major drivers of lower averages
Limited access to reliable electricity or modern fuels in some regions
Lower rates of car ownership and air travel
Smaller average living spaces and fewer energy-consuming appliances
Economic activity that may be less energy-intensive per person (though not always)
Within-country inequality matters
Urban households and higher-income groups may have energy use approaching developed-country levels
Rural or low-income communities may rely on minimal electricity or traditional fuels, lowering national averages
Why the disparity exists (high-utility explanations)
Energy use differences are not just “choice”; they reflect structural constraints and historical development.
Access and infrastructure
Availability of electric grids, clean cooking options, and fuel distribution strongly shapes consumption
Reliability issues can suppress use even when demand exists
Economic structure
Economies with more heavy industry or high-consumption services typically use more energy per person
Countries exporting raw materials may have lower domestic per capita use while enabling energy use elsewhere
Climate and geography
Cold or very hot climates can raise energy needs for temperature control
Long travel distances and low-density settlement patterns can increase transportation energy demand
Environmental and equity implications (within this comparison)
High per capita use often correlates with higher environmental footprints per person (especially where energy comes from fossil fuels).
Low per capita use can indicate limited access to energy services (lighting, refrigeration, medical equipment), highlighting energy poverty and development challenges.
The syllabus focus is the distributional fact: developed countries typically consume more energy per person than developing countries, and this imbalance shapes debates about responsibility and resource demand.
FAQ
They use multiple indicators rather than one label, such as income per capita, the Human Development Index (HDI), life expectancy, education levels, and infrastructure access.
Some organisations also use “low-income”, “middle-income”, and “high-income” categories to reduce ambiguity.
Yes. Small populations with energy-intensive industries (e.g., petrochemicals, aluminium smelting) can have high per person use.
Resource-rich economies may also have high domestic energy subsidies that increase consumption.
Extraction may be export-oriented, with limited domestic electrification.
Other constraints include weak grids, low household incomes, high connection costs, and political instability affecting investment.
Energy use measures how much energy is consumed.
Energy access focuses on whether households and communities can obtain reliable, affordable, and safe energy services (lighting, clean cooking, refrigeration), even if total use remains low.
Urbanisation can raise demand through construction, appliances, and industry, but it can also lower transport energy per person if dense cities enable public transport and shorter travel distances.
Net effects depend on planning, incomes, and infrastructure quality.
Practice Questions
Describe the typical difference in per-person energy consumption between developed and developing countries. (2 marks)
States that developed countries typically use more energy per person than developing countries (1).
Mentions per capita comparison / “per person” framing explicitly (1).
Explain three reasons why per capita energy use is typically higher in developed countries than in developing countries. (6 marks)
(Any three, 2 marks each: 1 for identifying, 1 for explaining):
Transport: higher private car use/aviation/freight and infrastructure supporting it (2).
Buildings: greater heating/cooling demand and larger building stock with more appliances (2).
Economic structure: more industrial/commercial activity and energy-intensive consumption of goods and services (2).
Access/infrastructure: reliable grids and widespread access to modern fuels enables higher use (2).
Income/consumption: higher incomes increase demand for energy services and products (2). (Max 6)
