Alternative energies Flashcards
unconventional fossil fuels
Tar sands
Deep water Oil
Oil shale
Shale gas
Tar sands
Canada
injecting steam into the ground to melt bitumen
contributes 3x as many GHG as conventional FF
150,000 jobs
over $1trillion on tax
energy and water insensitive, leakages
Oil industry contributed $18bn to damages of communities
160bn barrels exist
deep water oil
creating holes in earths crust for extraction under the sea
vulnerable to extreme weather events, hurricanes
long distances to shore
deepwater horizon disaster, 11 killed, 2000km of the gulf coast covered in oil
BP atlantis platform, 15 years estimated life
Brazil- ships cost $12bn each, diversifying supply in case of drought (HEP fails)
Oil shale
Liberating world from instability of Middle east
eastern supply
Water insensitive, 2 barrels of water for every oil barrel
expensive
Shale Gas
forcing water and chemicals into raock, splitting for gas
Carbon footprint is half of coals
many sites needed
land subsidence, temors, water contamination
in 2015 overtook coal as main electricity producer in US
1-16% of wells will spill each year
Alternatives to FF
nuclear
wind
solar
biofuels
Wind
Uk expected to deliver 50GW of offshor wind by 2030
need 2600 more turbines
Solar
Germany heavily invested, produce 25,000 GW (green party)
UK 5%, gov plans to increase fivefold by 2035
Nuclear
efficient, high cots
Hinkley point, £18bn project providing energy for 60 years
hope to provide 25% of energy by 2050
Biofuels
ethanol from sugar cane
1.3mil jobs, electricity produced with waste
land use change can impact CC
Brazil
industry struggled to compete when gov removed FF tax
Radical Tech
Carbon Capture
Hydrogen Fuel cells
electric vehicles
Carbon capture
Captured CO2 can be used in polymer manurfacturing
expensive
possibility of natural disasters
£20bn investment
projexts in NW NE and wales
Hydrogen fuel cells
only waste is H2O
lack of infrastucture to supoport distribution
enrgy required to gert H alone
more effiecient than petrol or deisel
Electric vehicles
Urban environments, pollution reduced
few charging points in rural regions
no road tax
estimates that by 2025 EV will cost same as petrol or deisel