Topic 7.2: Energy Sources — Uses and Management Questions

The United Kingdom made about 40% of its electricity from coal in 2012 and none in 2025. Describe one way in which this change in coal use could have been achieved.

Kessaly is a fictional country. Figure 1 shows its energy use by sector in 2020 and the projected energy use in 2050. With reference to Figure 1, identify which sector is predicted to reduce its energy use between 2020 and 2050.

Uruguay makes almost all of its electricity from wind, hydropower and biomass. Define the term renewable energy source.

Figure 1 shows the electricity generated in the United Kingdom by source between 2010 and 2024. Identify one possible reason why there has been a change in the quantity of electricity generated from wind.

China's five-year plan for 2021-2025 set a target to reduce the energy used per unit of economic output by 13.5%. Suggest one way in which this energy efficiency target could be met.

Figure 1 shows the sources of electricity generation in Belgium in 2024. Using Figure 1, state the proportion of electricity generated by non-renewable sources.

Figure 1 is a fact file on the Grand Ethiopian Renaissance Dam. Identify two environmental impacts of generating hydro-electricity at the Grand Ethiopian Renaissance Dam.

Figure 1 is a fact file on the Three Gorges Dam. Identify two environmental impacts of generating hydro-electricity at the Three Gorges Dam.

Figure 1 shows electricity production from renewable sources in Australia between 2011 and 2023. Identify one possible reason why there has been a change in the quantity of electricity generated from wind.

Spain's electricity from coal fell from about 37 TWh in 2018 to about 6 TWh in 2020. Describe one way in which this change in coal use could have been achieved.

The United Kingdom aims to make at least 95% of its electricity from low-carbon sources by 2030. Outline a strategy to achieve this target.

Solar farms in Chile's Atacama Desert produce large amounts of electricity at midday but none at night, when the country's copper mines still need power. State why energy production from some renewable sources creates the need for energy storage systems.

Ireland makes about a third of its electricity from wind, but on calm days output drops sharply. Identify one renewable energy source whose output depends directly on the weather.

Bhadla Solar Park, in India's Thar Desert, covers about 56 km² and can produce about 2,245 MW of electricity. Outline one advantage and one disadvantage of solar energy as a renewable source of energy.

Figure 1 shows the sources of electricity generation in Sweden in 2024. Using Figure 1, state the proportion of electricity generated by non-renewable sources.

The Benban Solar Park near Aswan, Egypt, is one of the largest in Africa, at about 1,650 MW. Outline one advantage and one disadvantage of solar energy as a renewable source of energy.

Figure 1 is a fact file on the Ilisu Dam. Identify two environmental impacts of generating hydro-electricity at the Ilisu Dam.

Australia aims to make 82% of its electricity from renewable sources by 2030, up from about 35% in 2024. Outline a strategy to achieve this target.

Figure 1 shows electricity production from renewable sources in Brazil between 2011 and 2023. Identify one possible reason why there has been a change in the quantity of electricity generated from wind.

India aims to have 500 GW of non-fossil electricity capacity by 2030. Outline a strategy to achieve this target.