Sustainable energy

• Identify major energy resources: fossil fuels, nuclear, biofuels, wind, hydroelectric, tides, and solar. • Describe the general process of electricity generation using turbines and generators. • Describe the National Grid system, including the use of transformers for efficient transmission. • Identify the components of mains electricity (live, neutral, earth) and their safety functions. • Evaluate the sustainability, availability, and environmental impact of different energy sources.