Renewable, Non-renewable, Resource, Stock
Renewable-These are resources that are capable of natural regeneration into products within a timescale relevent to the people using it e.g.wind.
Non-renewable-A resource that is finite in within a human context e.g.Fossil fuels. They can be used only once and therefore they can be exhausted.
Resource-It is something that has a use for it at the time.
Reserve-The known quantity avaliable of a resource.
Stock-An estimate of how much of the reserve is on the planet as a whole.
Energy demand, Energy Consumption, Primary energy,
Energy demand-The amount of energy required at a certain place at a certain time and it will vary depending on the time and place.
Energy consumption-It is the amount of energy consumed by different users and is usually measure in kW or mW.
Primary energy-This is energy that has not been subjected to any change, conversion or transformation before use and it exists in a raw form e.g. coal.
Secondary energy-This is energy that has to be converted into a more useful product e.g. the conversion of coal or gas into electricity.
Sustainable, Energy security, Energy insecurity
Sustainable-Using something in a way that allows it to be protected for future generations.
Energy security-It is when you have access to reliable and affordable energy sources like Russia does.
Energy insecurity-This is the opposite of energy security. It is when you do not have access to a relliable and affordable energy source and rely on other countries or places for energy sources.