mark akhurst, bp: the princeton wedges model
TRANSCRIPT
1Mark Akhurst, BP: The Princeton wedges model
Options for change – enabling technologies
Mark Akhurst BP Plc
2Mark Akhurst, BP: The Princeton wedges model
Options for change – enabling technologies
A further shift to natural gas
Nuclear power
Renewables Bio-products Carbon capture and storage
Mass transportation
Road transport
Buildings Low energy appliances
Doing things differently
Energy conservation and efficiency
Emission reduction
3Mark Akhurst, BP: The Princeton wedges model
1.9
20502000
14
7
Billion of Tons of Carbon Emitted per Year
19500
Currently
projected
path
Flat path
Historical emissions
2100
14 GtC/y
7 GtC/y
Seven “wedges”
O
Options for Change - Princeton Wedges Model
Illustrating the scale of the challenge
4Mark Akhurst, BP: The Princeton wedges model
Effort needed by 2050 for 1GT C reduction:
•1400 new gas fired power stations•= approx 2 per month•190 bcfd NG by 2050•Alaska pipeline would be ~ 4 bcf.
Natural Gas for Power Generation
Current proven reserves of natural gas ~ 65 years
Increased shift to gas would reduce this
Challenge is to discover new reserves of natural gas, and equally importantly, bring this gas to markets
5Mark Akhurst, BP: The Princeton wedges model
Power with Carbon Capture and Storage
Graphics courtesy of DOE Office of Fossil Energy
Effort needed by 2050 for 1GT C reduction:
Carbon capture and storage at 700 GW coal power plants.
6Mark Akhurst, BP: The Princeton wedges model
Carbon Storage
Effort needed by 2050 for 1 GT C reduction:
3500 Sleipners
A flow of CO2 into the Earth equal to the flow of oil out of the Earth today
Graphic courtesy of Statoil ASA
Start now to gain experience with the permitting of storage sites.
7Mark Akhurst, BP: The Princeton wedges model
Effort needed by 2050 for 1 GT C reduction:
Add 700 GW (twice current capacity): fourteen 1-GW plants/year.
Requires 4% pa CAGR (compared with 2% CAGR since 1990).
Nuclear Electricity
Graphic courtesy of NRCPlutonium (Pu) produced by 2050, if fuel cycles are unchanged: 4000 t Pu (and another 4000 t Pu if current capacity is continued).
Compare with ~ 1000 t Pu in all current spent fuel, ~ 100 t Pu in all U.S. weapons.
Potential Pitfalls:Nuclear proliferation and terrorismNuclear waste, NIMBY
8Mark Akhurst, BP: The Princeton wedges model
Wind Electricity
Effort needed by 2050 for 1 GT C reduction:
300,000 5MW windmills.
Today: 5MW turbines are still in prototype phase (2MW is standard)
Land cover = Portugal
1% of world steel prod’n
US built 2700 liberty ships in 5 years
Prototype of 80 m tall Nordex 2,5 MW wind turbine located in Grevenbroich, Germany
(Danish Wind Industry Association)
9Mark Akhurst, BP: The Princeton wedges model
Solar PV Electricity
Effort needed by 2050 for 1 GT C reduction:
700 times current capacity
= 60 times faster (linear) growth rate than current
10 million hectares of land (less than 0.1% of world’s land, half the land area of Barbados)
Compare: land area required for 1GT reductions with biofuels = 250 million hectares)
Photo courtesy of BP
10Mark Akhurst, BP: The Princeton wedges model
Biofuels
Effort needed by 2050 for 1 GT C reduction:
Two billion 60 mpg cars running on biofuels
250 million hectares of high-yield crops (one sixth of world cropland).
Transport may not be best use of biomass/biofuel resources
Usina Santa Elisa mill in Sertaozinho, Brazil (http://www.nrel.gov/data/pix/searchpix.cgi?getrec=5691971&display_type=verbose&search_reverse=1_
11Mark Akhurst, BP: The Princeton wedges model
GHG per capita varies within 3:1 range in developed nations
6000 kg/capita in USA
2000 kg/capita in Germany
Role of mass transportation is a key element
Mass Transportation
Effort needed by 2050 for 1 GT C reduction:
Mass transportation replaces 50% of projected road travel in small/medium vehicles
12Mark Akhurst, BP: The Princeton wedges model
Road Transport – vehicle efficiency
Effort needed by 2050 for 1 GT C reduction:
1 billion cars on the roads today
2 billion by 2050
Current average efficiency 20 - 30 mpg
2050 average efficiency 50 - 60 mpg
Advanced fuels & lubes
Lightweight materials
Increased dieselisation (eg USA)
Hybrids
Photo courtesy of Toyota
13Mark Akhurst, BP: The Princeton wedges model
Buildings / Low Energy Appliances
Space heating/cooling
Water heating
Lighting
Appliances
Effort needed by 2050 for 1 GT:
Buildings emit 3.9 Gt/yr carbon = 20% of total
Cutting emissions from buildings by 25% from 2050 BAU = 1 Gt/yr C
More than half potential in developing regions
Example:
10 billion incandescent lamps today plus significant lighting by direct fuel burning
⇒50 billion by 2050
⇒Full replacement with efficient bulbs (eg. LED) reduces 0.5 Gt/yr C in 2050, assuming existing carbon intensity of power generation
14Mark Akhurst, BP: The Princeton wedges model
Doing things differently
Not a capping or reduction in valuable activity.
Reducing unnecessary, and unvalued waste: eg current standby capacity in USA = xx large power stations running at full capacity.
A shift in perception of “wealth” and “value” – recent examples of low-carbon wealth creation:
- cell phones
- IT / software / computer games
Urban Design
Telecommuting
On demand services
Radical business models
Low-carbon wealth creation