uk energy Flashcards
energy conservation meaning
reducing energy consumption and using existing energy sources to be efficient
energy mix meaning
the combination of different energy
energy security meaning
reliable and affordable sources of energy
renewable meaning
a source that wont run out of
natural energy
non-renewable meaning
sources of energy that will run out
how much of global energy is non-renewable
87%
energy insecurity?
more energy used than it produces
what will we do when the UK becomes energy insecure in the future
import more energy to reduce the gap between demand and supply
why has energy demand increased in recent years?
technology
population increase
why do countries experience energy insecurity
increase in demand
supply meaning
the amount of something available for use
demand meaning
the consumers need or desire to use a product
surplus meaning
when demand is lower than supply
deficit meaning
when demand is higher than supply
how does climate affect energy
windy climates - wind turbines
sunny climates - solar pannels
impacts of energy insecurity
food production
industry
conflict
cost
types of resource management
biomass -burning to produce biofules
wind -turbines
hydro - dams
tidal - turbines in rivers
solar - pannels
what is resource management
key resources need for economic and social well-being
food water energy
what is carbon footprint
estimate of the impact that activities have on climate change
what is UK average of carbon footprint
10,000kg per person per year
what is world average of carbon footprint
4000kg per person per year
CASE STUDY FOR PETROL CONSUMPTION
Brazil!!
how much has Brazil reduced petrol by?
40% since 1993
how has Brazil reduced petrol use
introduced using sugar cane ethanol in cars
how many new cars in Brazil run on petrol AND ethanol?
90%
benefits of sugar cane ethanol in Brazil
cheaper
renewable
lasts longer/takes you further
locally produced so no cost of trade
reliable
disadvantages of ethanol in Brazil
cut down trees to grow it
takes a lot of energy to produce
LIC/NEE CASE STUDY FOR ENERGY
Nepal!!
how much below is Nepal than south asian average?
20%
what is the highest used source in NEPAL?
wood
why do people deforestate in NEPAL?
no supervision of the forest
use it to sell the wood
homeless make homes there
use it for energy
Nepal has no fossil fules of its own for how many people
28million
how peoples lives have improved due to energy
new jobs
lights
education (technology for it)
communication
cooking easier
