1.3 - National and Global Energy Resources

What is a renewable energy resource?

A renewable energy resource is a natural resource that can be replenished naturally in a short period of time, such as solar, wind, hydro, and geothermal energy, providing sustainable alternatives to fossil fuels.

Give four examples of renewable energy resources.

Solar, wind, hydro, and tidal energy.

Give an example of a non-renewable energy resource.

A non-renewable energy resource is a natural resource that cannot be replenished in a short period of time, such as coal, oil, natural gas, and nuclear energy, which are used primarily for energy production.

What are the advantages of generating power using gas rather than coal?

● Flexible Generation: Gas power stations have short start-up times so can be switched on/off more readily

● Lower emissions of carbon dioxide

State two disadvantages of using renewable energy resources to generate power

● Output often determined by external factors (like wind speed), so supply is uncertain

● Generating power through other means is often more efficient and economically beneficial

● Higher initial investment costs ● Limited availability of resources in some regions

State three advantages of nuclear power

● Low greenhouse gas emissions ● High energy density ● Reliable and continuous power supply

State three disadvantages of nuclear power.

● High costs for plant construction and decommissioning

● Risk of accidents and radioactive waste

● Limited fuel supply and uranium mining concerns

non renewable energy source

How does hydroelectric power produce energy?

Hydroelectric power produces energy by harnessing the flow of water through dams to turn turbines, which then generates electricity.

What are some disadvantages of using biofuels?

Biofuels can lead to deforestation, food competition, and high production costs.

What are the advantages of tidal energy sources?

Tidal energy sources are renewable, produce no greenhouse gas emissions, have predictable energy output, and can generate electricity with minimal ecological impact.

What are the disadvantages of hydroelectric power?

Hydroelectric power can disrupt local ecosystems, displace communities, and lead to sediment buildup, which affects water quality and aquatic life.

What are some advantages of solar panels?

Solar panels are renewable, reduce electricity bills, have low maintenance costs, and can provide energy independence. They are a renewable resource They can be used in remote areas where other types of energy are less accessible

Give examples of social factors which may act as a deterrent for certain types of energy production.

● Visual Pollution

● Sound Pollution