Energy Security Flashcards
Types of sources of energy?
Stock and Flow
Primary and Secondary
Examples of stock resources:
Coal (primary)
Oil (primary)
Natural Gas (primary)
Uranium (nuclear fission - primary)
Examples of flow resources:
Biomass (primary and secondary)
HEP (primary)
Other renewables (secondary)
What are primary sources of energy?
Raw materials used in their natural form to produce energy e.g. coal, petroleum(oil), uranium and wood.
What are secondary sources of energy?
Raw materials that are manufactured or altered to produce energy e.g. biogas and alcohol made from biomass and renewable energy that has to be collected with specialised equipment.
How has the global energy mix changed between 1800 and 2000?
In 1800 it was primarily biomass and a small % of coal.
By 2000 it is mainly oil, gas and coal with a small amount of HEP and biomass.
What physical factors impact a countries energy mix?
Geology may impact fossil fuel stocks and yield.