the energy problem and lawrence berkeley national laboratory
TRANSCRIPT
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The Energy Problem and Lawrence Berkeley National
Laboratory
California Air Resources Board 27 February, 2008
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Some risks of climate change*: • Water Shortages
• Property losses and population displacement from sea-level rise
• Increased damage from storms, floods, wildfires
• Reduced productivity of farms, forests, & fisheries
• Increased species extinction
• Spread of disease (malaria, cholera, dengue fever, …)
* See the Stern Review Report: “Part II: The Impacts of Climate Change on Growth and Development”
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Emissions pathways, climate change, and impacts on California Proceedings of National Academy of Sciences (2004)
Using two climate models that bracket most of carbon emissions scenarios:
B1 A1 fi 500ppm Current path
(BAU)
Heat wave mortality: Alpine/subalpine forests Sierra snowpack
2-3x 50–75% 30–70%
5-7x 75–90% 73–90%
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78% of British Columbia pine will have died by 2013.
“Approximately 40% of the merchantable pine volume in the province has likely already been killed.” British Columbia, Ministry of Forests and Range, 2006
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How would atmospheric CO2 be affected by global warming?
Atm CO2 would increase because:
• Warming may enhance decomposition
• Increased ocean stratification more carbon in mixed layer
reduced air-to-sea flux
• ….
Atm CO2 would decrease because:
• warming may enhance photosynthesis
• Enhanced marine productivity and export
• …
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6 I air - OPtran Correlation Coemc1ent 90N
60N
30N
0
30S
60S
90S
180 150W 120W 90W 60W 30W 0 30E 60E 90E 120E 150E 180
-0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 6NPP - 6T8 ;, Regression Slope
90N
60N
30N
0
30S
60S
90S
180 150W 120W 90W 60W 30W 0 30E 60E 90E 120E 150E 180
-300 -100 -80 -60 -40 -20 0 20 40 60 80 100 300
21st Century Correlations & Regressions: FF= SRES A2 ; δ = Coupled minus Uncoupled
21st Century Correlations & Regressions: FF= SRES A2 ; δ = Coupled minus Uncoupled
{δT, δSoil Moisture Index}
Warm-wet
Warm-dry
Regression of δNPP vs δT
NPP decreases with carbon-climate coupling
Fung et al. Evolution of carbon sinks in a changing climate. PNAS 2005
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A dual strategy is needed to solve the energy problem:
1) Maximize energy efficiency and decrease energy use. This part of the solution will remain the lowest hanging fruit for the next few decades.
2) Develop new sources of clean energy
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Lawrence Berkeley National Laboratory 3,800 employees, ~$520 M / year budget
11 employees were awarded the Nobel Prize, (9 did their Nobel work at the Lab.)
Berkeley(Over 55 Nobel Laureates either trained or had Lab 200-significant collaborations at LBNL) acre site
Today:
~ 3% of the members of National Academy of Sciences, 18 in the National Academy of Engineering,UC Berkeley
2 in the Institute of MedicineCampus
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1960
1970
1980
1990
2000
Total Electricity Use, per capita, 1960 - 2001
12,000
10,000
8,000
6,000
4,000
2,000
0
KW
h
Electricity use per person (1960 – 2001) kWh14,000
U.S.
California
Art Rosenfeld turns his attention to the energy problem
1962
1964
1966
1968
1972
1974
1976
1978
1982
1984
1986
1988
1992
1994
1996
1998
12,000
8,000 7,000
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GWH Impacts from Programs Begun Prior to 2001
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
Half of the energy savings in California were made by
separating utility profits from selling more energy G
WH
40,000
35,000
30,000
25,000
20,000
15,000
10,000
5,000
0
Utility Programs
Building Standards
Appliance Standards
~ 14% of Annual Use in California in 2001
Source: Mike Messenger, CEC Staff, April 2003
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High Performance Buildings Research & Implementation Center
(HiPerBRIC)
United Technologies
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“Prius of Buildings: Exploiting the Interfaces between Building Systems”
Buildings Design & Energy Analysis
HVAC Natural Ventilation, Indoor Environment
Windows & Lighting Networks,
Communications
Building Materials Sensors,
Domestic/International Controls Policies, Regulation, Standards, Markets
Power Delivery & Demand Response
Demonstrations
Integration & Building Operating Platform
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Potential supply-side solutions to the Energy Problem by 2050
• Oil, Unconventional Oil • Coal • Gas • Fission • Geothermal
• Wind • Solar photovoltaic
and Solar thermal • Bio-mass
Base-load electricity generation
Energy storage and efficient electricity transmission is needed before transient sources >30% of baseload
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Estimated Temperatures at 6 Kilometers L09Qnd
Rrloerl Lake& - Geoc;,rusurezone,
v..,_ .. ._,_,._,._.,_,,_ _ __ .,__,~kll-&lll.,._.... , ____ "'
-ll-~'==-==" .. <14il~ZCH-~"" ~=:.:::.::,~~!~::" .. --
.,. .
> 250
225 - 250
175 - 200
125 - 150
75 - 100
< 50
Temperature ° C
U.S. Geothermal Resources are Huge
Heat at 6 km depth:
• T > 200 ˚C: 296,000 EJ*; T > 125 ˚C: 2,410,000 EJ
• Total US energy consumption: ≈ 100 EJ
• Total U.S. geothermal energy use is ~0.3 %
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Reservoir
Why is Geothermal Energy Contribution so Small?
• Geothermal energy extraction is currently limited to natural hydrothermal systems.
• There is a vast store of geothermal heat that is difficult to recover (hot rocks lacking fluid and permeability).
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inject cold water produce hot water
Enhanced Geothermal Systems (EGS) EGS is currently not economically
viable. The chief obstacles are:
dissolution and precipitation of rock minerals, that may cause anything from short-circuiting flows to formation plugging large power requirements for keeping water circulating water losses from the circulation system inadequate reservoir size - heat transfer limitations high cost of deep boreholes (≈ 5 km)
fracture network in hot rock
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Helios: Lawrence Berkeley Laboratory and UC Berkeley
Cellulose-degradingCellulosePlants microbes Engineered
photosynthetic microbes Methanol and plants Ethanol
Hydrogen Artificial Hydrocarbons
Photosynthesis PV Electricity Electrochemistry
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Energy Storage
• Large scale for storage of renewable sources of energy such as wind and solar thermal and photo-voltaic sources.
• Small scale for isolated (off-grid) villages, communities, buildings, homes, automobiles, laptop computers, ….
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Battery Usage in EVs, HEVs, and PHEVs
HEV
EV
0.2-0.4 kWh CS Used frequently in CS ~
'"----- -----✓~
0.2-0.4 kV\lh cs ~
Used .sometim,es in CS
C arged and used (CD)
Charged and used (CD)
Total Battery Capacity*
1-2 k\\Th I
6- U k\Vk-30-40 k\Vk
0 10 20 30 40 50 60 70 BO 90 100
CD: Charge Deple,ting SOC Rang (o/a) cs: Charge Sustaining
12 *Battery capacity for a m idsize car
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IRep1eat1ed cycling led to th 1e rough 1ening of· the lli surface .a.nd 1eventu.ally to c.atastrophic dendrit1e growth.
PEO
t-O intermediate times high surface area Li
dendrite short
------LAWRENCE BERKELEY NATIONAL LABCRATCRY _____ _
Fatal Flaw in Polyethylene Oxide
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Hybrid solution:* use a co-block polymer that self-organizes into
PEO (dark bands)
Polystyrene (light bands)
* Nitash Balsara, Materials Science Division, LBNL; UC Berkeley professor
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100 nm
• ~ Berl~eley Lab 1·5 I 13 19¥-13 I 59948 P.511-1 h◄R-5+1 P.S-·I
~ Office of ~ Science
U.S. DEPARTMENT OF ENERGY
A lithium – metal battery material with a dry, block copolymer separator shows promise. (Nitash Balsara)
Latest results of prototype ~ 1000 deep discharge cycles and no sign of degradation. Energy density initial target: 2x Li-ion
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Distributed storage capacity potential
• In North America, there are ~260 million vehicles ~ 100 M personal automobiles.
• Assume 50% market penetration and 30 kWh storage per electric vehicle.
• (50 x 106 cars)(30kWh) = 1.5 x 109 kWh = 1.5 TWh > 10% of energy used/day
50 M cars can be programmed to buy energy at night (at low cost) and sell back during the afternoon (at high cost).
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Limiting factors for plant productivity
•
Baldocchi et al. 2004 SCCJPE 62
~ 0.2 – 0.3% of the non-arable land in the world would be need to generate current
electricity needs (~ 4 TW) with solar electricity generation at 20% efficiency.
Rad/water temp/waterTemp/water limitationlimitation limitation
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.. l Ill .. .!! 0 "Cl 0 Cl) Cl) ...
20,ooo~------------------------------------------------------------0 D Resean:h, development, and deployment phase
1983
5,000
2,000
1,000
e Commercialization phase
...... o ····-·························-················· .. ·-········ .. ···············-··············· .................................... ..................................................... .
0 United States □Japan
0
........................................................................... □ .. 1995
■
1987
• ................... .. . ....................................
1980
200 .... .... ................... ........... .... ......... .... .... .. .. ............... .. ................. ..
100 -----------..----------------------..-------------10 100 1,000 10,000 100,000
Cumulative megawatts installed (log)
Cost of electricity generation vs. installed capacity(1990 dollars / installed Megawatt hour)
Photovoltaics
2005 10x cost difference
Windmills (not including distribution,
energy 2005 storage and
back-up generation
Gas turbines costs)
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MOLECULAR FOUNDRY FACILITY DIRECTORS
Organic and Macromolecular Synthesis Facility Jean MJ Frechet
Inorganic Nanostructures Facility A. Paul Alivisatos
Nanotabrication Facility Jeffrey Bokor
Biological Nanostructures Facility Carolyn R. Bertozzi
Theory of Nanostructured Materials Steven G. Louie
Imaging and Manipulation of Nanostructures Facility Miquel Salmeron Research Interests
The Molecular Foundry
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Reel-to-reel mass production of solar cells using nano-technology?
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Energy Biosciences Institute $50M/ year for 10 years
Univ. California, Berkeley Lawrence Berkeley National Lab Univ. Illinois, Urbana-Champaign
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•
■ 50_ Berl~eley Lab 1·1 ■-13 13¥·1+13395¥ f-531-1 P.593-f ■ -liii-i · F
I JQINT DIQENE ~ ,y [NIS1"111JTl!i
~ Office of ~ Science
U.S. DEPARTMENT OF ENERGY
DOE IHOe · .. ·
I . .
Joint Bio-Energy Institute (JBEI) LBNL, Sandia, LLNL, UC Berkeley,
Stanford, UC Davis $25M / year for 5 years
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Feedstock grasses (Miscanthus) is a largely unimproved crop. Non-fertilized, non-irrigated test field at U. Illinois yielded
15x more ethanol / acre than corn.
50 M acres of energy crops plus agricultural wastes (wheat straw, corn stover, wood residues, urban waste, animal
manure, etc. ) can produce half to all of current US consumption of gasoline.
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Lignocellulose
JGI~ DOE JOINT GENOME INSTITUTE US DEPARTMENl Of 1: NEflGY Of f' IC£ or SC IENCE
Advancing Science with DNA SequenceTermites have many specialized enzymes for efficiently digesting lignocellulosic material
Mono- & oligomers
Glucose, fructose, sucrose
Acetate
Fermentation pathways
H2 &
CO2
Fermentation pathways
Cellulases Hemicellulases
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IN "~ ~ . ' I I~ ... .J ·,]:;i,. •.M'fl••r• ·u, f ,J, ...,, ·11 ~ ,, •ltr ~ -. ., . • -;,.,. ;' ·1 "~,.:i ,
---- - '"•I ·t1• .J.j
•,l!f;i;1 ,rrJJ ,1 ....,._.~" It ·l """"'·1 •1'·· ,, •,J,. J 11•1 ff•,i, ~1.,"W~).oi;rA ~r1•'1"1~ "~" •..p
__., .f>,,., ""'•l'" , ,. w),. ,., ,..j-
lot ." .-tin -41•1,,,..,,. ; ""'· ... 1 ,1;,• ,,.;,
,.,.,,J,.. ..,)'f~~.,,...~ n-t•1•1\1a " -1) .,.,,.,;),. -----~ - 'J•i'11'°""' ,,,,..~)
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, I" •• ,r;. ~I ,rf',"'/rf•..n~ -t:A ~ ?l"' ~,,. .. •1•1H'I t,,j,.,-,fl"""1ft~, .-i •,H ~ l ,t"L . '. ~-~ ~., r ,
ti~' (1'•,t-f/11 •,n )'- ..,,. .,t.,,,., ~.,tb •I" ., ' -,Ir-:, .. <t'J t ~~ 4tct ::i ti«•¥" o,ff'
Man first learned to fly by imitating nature
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Can we make an artificial photosynthesis system?
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HELIOSHELIOSHELIOS Water Splitting by Sunlight
2 H2O 2 H2 + O2
H
H O
H H
O
O O
H H H H
Stored Energy
2 H2 + O2
2 H2O
Water Splitting Raction
Heinz Frei
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Mn Mn Mn Mn
Mn Mn Mn Mn
Mn Mn Mn Mn
HELIOSHELIOSHELIOS Carbon Dioxide to Liquid Fuel by Sunlight
2 CO2 + 4 H2O 2 CH3OH + 3 O2
Chris Chang
Stored Energy
2 CH3OH + 3O2
2 CO2 + 4H2O
Fuel-Forming Reaction
H H O
OH H
O OC
O C
O
CH3 H O HO CH3
O O
O O
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E.O. Lawrence introduced the idea of “team science”
Ernest Lawrence, Robert Serber, Luis Alverez, Edwin McMillan, Robert Oppenheimer, Robert Wilson (Glenn Seaborg not present)
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Bardeen
Materials Science Brattain Theoretical and experimental physics
- Electronic structure of semiconductors
- Electronic surface states - p-n junctions
Shockley
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Common denominators of the best run research laboratories during their “golden eras”
• Individual genius was nurtured, especially in their early careers; individuals were encouraged to quickly formteams to rapidly exploit ideas.
• The scientific direction was guided by collective wisdom and “managed” by top scientists with intimate, expert knowledge.
• Bold approaches were encouraged; some failure was expected, but there was an emphasis on recognizing failure quickly, and moving on to other opportunities.
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“On December 10, 1950, William Faulkner, the Nobel Laureate in Literature, spoke at the Nobel Banquet in Stockholm,
… I believe that man will not merely endure: he will prevail. He is immortal, not because he alone among creatures has an inexhaustible voice, but because he has a soul, a spirit capable of compassion and sacrifice and endurance.’
With these virtues, the world can and will prevail over this great energy challenge.”
Steven Chu (USA) and José Goldemberg (Brazil) Co-Chair’s Preface
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lnterAcademy Council About the IAC I
“Lighting the Way: Toward a Sustainable Energy Future”
Released October 22, 2007
Co-chairs: Jose Goldemberg, Brazil Steven Chu, USA
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Earth RiseEarthrise from Apollo 8 (December 24, 1968 )
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How about using CO2 as Heat Transmission Fluid?
property CO2 water
chemistry poor solvent for rock minerals powerful solvent for rock minerals: lots of potential for dissolution and precipitation
fluid circulation in wellbores
highly compressible and larger expansivity ==> more buoyancy, lower parasitic power consumption
low compressibility, modest expansivity ==> less buoyancy
ease of flow in reservoir
lower viscosity, lower density higher viscosity, higher density
heat transmission smaller specific heat larger specific heat
fluid losses earn credits for storing greenhouse gases
costly
Favorable properties are shown bold-faced.
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30,000
24,000
18,000
12,000
6,000
~ ~ '-'
Modest but stable fiscal incentives were essential to stimulate long term development of
power generation from wind
3 MW capacity deployed and 5 MW generators in design (126 m diameter rotors).
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UNITED STATES ANNUAL AVERAGE WIND POWER
., ' ,·~--~ \ ()
D "'! 'a
---=,;;..------ --·
PUERTO RICO
• H ~ ---~1, w;ag ~,·C-~U ••
Wind sites in the US
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Advantages of High Voltage DC over AC transmission:
After 500km, HVDC is less expensive!
• Two conductors vs. 3 or 4 for AC. • Radiative and dielectric losses are much less. • Capacitance losses
(Energy used to polarize the capacitance of the cable and surrounding environment)
•Long distance DC grid system will make a more robust grid system.
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in many locations
----------- _:::::::~ ::::::: ____________________ :::~ ::---- -
Many Drivers, Including ImprovedEconomics and Policy Support
Wind power with PTC competitive 160
140
in the US, but needs policy 120
support (typically RPS) in others
Whether wind is 2005
$/M
Wh 100
80
60
competitive in 40 long-term absent policy support 20
depends on cost 0
of fossil fuels
Average Price of Wind Power Without PTC
Operating Cost of Natural Gas Combustion Turbine
Average Price of Wind Power With PTC
Operating Cost of Natural Wholesale Price Range Gas Combined Cycle for Flat Block of Power
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
Electricity Markets and Policy Group • Energy Analysis Department 53
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•
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~ Office of Science
U.S. DEPARTMENT OF ENERGY
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Distributed junction nano-solar cells * (Separation of electrons and hole creation and transport.)
* A. Heeger, et. al. Exciton
Diffusion Length
P3HT100 nm Absorption
Depth
n
Polymer
ITO
e-h+
Al
20 nm
S
Absorption
Charge Transfer
Charge Transport
Exciton Diffusion
CdSe Nanorods
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Cellulotome
Enzymatic subunit .... .,.
....-t-Doderin Interaction
,,....-.-CahHin
CBM-t;eNulo,e ~~~~~- Interaction
Cellulosomes can be designed with complementary enzymes to form a single multi-enzyme complex. Cellulose hydrolysis rates were shown to be 2.7- to 4.7-fold higher compared with
purified enzyme preparations.