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Geography
Carbon
ENergy security
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Created by
charlotte mcclure
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Cards (12)
What are the key components of energy security?
Availability
:
uninterrupted
energy supply
Accessibility
: energy must be
reachable
Affordability
: competitively
priced
energy
Reliability
:
uninterrupted
energy supply
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Why is energy security important for a country?
Energy is vital for the
functioning
of a country, powering
transport
,
lighting settlements
, and more.
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How is energy consumption measured?
In
per capita
terms, as
kilogrammes
of oil equivalent or megawatt hours per person.
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What does energy intensity measure?
It measures the
units
of energy used per unit
GDP.
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How does energy intensity relate to economic development?
Energy intensity values generally
decrease
with economic development.
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What is the
energy
mix?
The combination of different
energy
sources used to meet
total energy consumption.
Varies from
country
to
country.
Includes distinctions between:
Domestic
and
foreign
sources
Primary
and
secondary
sources
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What are primary energy sources?
Energy sources found in
nature
, not converted or
transformed.
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What are secondary energy sources?
Energy sources derived from the
transformation
of
primary
sources, usually more convenient.
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What was the total energy consumption in 1820?
20
exajoules, mainly from
biofuels.
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How did energy consumption change from 1900 to 1980?
It increased from
50
exajoules in 1900 to
330
exajoules in 1980.
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What was the energy consumption in 2010?
540
exajoules.
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What types of energy sources were present in the 2010 energy mix?
Biofuels
,
coal
, oil, natural gas, hydro, and nuclear.
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