Energy

• Primary energy is the raw materials used to make secondary energy
• Secondary energy is the processed energy made from primary sources
• Energy demand is increasing due to: increased population, increased wealth and increased standard of living
• Renewable energy is energy that can be replenished naturally over time
• Fossil fuels are non-renewable as they take millions of years to form
• China is now the largest energy consumer in the world.
• Hydroelectric power is renewable because water cycles around the planet
• non-renewable energy is energy that cannot be replenished, such as fossil fuels
• Energy gap is the difference between energy production and demand in a given area
• More energy is used in urban areas
• A country with an energy surplus can sell its excess energy abroad
• Rural areas have more potential for renewables due to space availability
• The UK has been importing more gas than it exports