innovation in pv r&d - mit opencourseware...source: michael liebreich (chief executive,...
TRANSCRIPT
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Buonassisi (MIT) 2011
R&D Investment & Innovation in PV
Lecture 20 MIT Fundamentals of Photovoltaics
2.626/2.627 – 12/6/2011 Prof. Tonio Buonassisi
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High-Efficiency Concepts
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Very High-Efficiency Solar Cells
Advantages: - Very high efficiencies
Challenges: - High cost (often used in concentrators, where PV device is small % of total
system cost) - Manufacturability: Slow, expensive epitaxial growth methods
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Tandem (Heterostructure) Cells
http://www.spectrolab.com/DataSheets/TNJCell/utj3.pdf
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- Stack of lattice-matched materials with decreasing bandgaps.- Spectrolab Cells: GaInP2/GaAs/Ge. Effmax=32%, Effave=28%. 375 kW in orbit!- Theoretical efficiency limit for infinite tandem cell: 86.8%- Heteroepitaxial growth slow and expensive!
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Materials Availability
Most experts agree: not enough Ge to produce TW of PV.
Development of new low-bandgap materials.
Source: A. Feltrin, A. Freundlich, “Material Considerations for Terawatt Level Deployment of Photovoltaics.”Renewable Energy 33 (2008): 180-185. Courtesy of Alex Freundlich. Used with permission.
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Global Investment Trends in Solar
& Other Renewables
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Source: “Who’s Winning the Clean Energy Race? G-20 Clean Energy Factbook.” Pew Charitable Trusts, 2010. (PDF)
© The Pew Charitable Trusts. All rights reserved. This content is excluded from our Creative
Commons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
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China ($bi)
United States ($bi)
Source: Michael Liebreich (chief executive, Bloomberg New Energy Finance) testimony at “The Global Clean Energy Race,” hearing of House Select Committee on Energy Independence and Global Warming, September 22, 2010. Testimony slides (PDF).
© Bloomberg New Energy Finance. All rights reserved. This content is excluded from ourCreative Commons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
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E.U. ($bi)
Source: Michael Liebreich (chief executive, Bloomberg New Energy Finance) testimony at “The Global Clean Energy Race,” hearing of House Select Committee on Energy Independence and Global Warming, September 22, 2010. Testimony slides (PDF).
© Bloomberg New Energy Finance. All rights reserved. This content is excluded from ourCreative Commons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
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RE Investment, by Type and Sector
Source: “Who’s Winning the Clean Energy Race? G-20 Clean Energy Factbook.” Pew Charitable Trusts, 2010. (PDF)
© The Pew Charitable Trusts. All rights reserved. This content is excluded from our Creative
Commons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
Asset finance: Installation, capacity expansion… Public markets: Stock offerings, IPOs…
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Source: Michael Liebreich (chief executive, Bloomberg New Energy Finance) testimony at “The Global Clean Energy Race,” hearing of House Select Committee on Energy Independence and Global Warming, September 22, 2010. Testimony slides (PDF).
© Bloomberg New Energy Finance. All rights reserved. This content is excluded from ourCreative Commons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
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Renewable Energy Technology Pipeline
Source: “Who’s Winning the Clean Energy Race? G-20 Clean Energy Factbook.” Pew Charitable Trusts, 2010. (PDF)
© The Pew Charitable Trusts. All rights reserved. This content is excluded from our Creative
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2009 Government Investment in Clean Energy
Source: “Who’s Winning the Clean Energy Race? G-20 Clean Energy Factbook.” Pew Charitable Trusts, 2010. (PDF) © The Pew Charitable Trusts. All rights reserved. This content is excluded from our Creative
Commons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
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Source: DOE, Clean Energy Futures (2000)
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Source: DOE, Clean Energy Futures (2000)
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http://www.nsf.gov/statistics/infbrief/nsf10327/
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Funding-Patent Correlation for Energy
R. Margolis and D. Kammen (1999). “Underinvestment: The energy technology and R&D policy challenge”, Science, 285, 690 - 692.
© AAAS. All rights reserved. This content is excluded from our Creative Commonslicense. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
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Funding-Patent Correlation for PV
D. Kammen and G. Nemet, “Reversing the Incredible Shrinking Energy R&D Budget.”
Issues in Sci & Techn., Fall 2005, p. 84
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Funding-Patent Correlation for Energy
D. Kammen and G. Nemet, “Reversing the Incredible Shrinking
Energy R&D Budget.” Issues in Sci & Techn., Fall 2005, p. 84
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Global Trends in Venture Investing
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RE Investment, by Type and Sector
Source: “Who’s Winning the Clean Energy Race? G-20 Clean Energy Factbook.” Pew Charitable Trusts, 2010. (PDF)
Asset finance: Installation, capacity expansion… Public markets: Stock offerings, IPOs…
© The Pew Charitable Trusts. All rights reserved. This content is excluded from our Creative
Commons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
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VC Investment, by Sector
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Source: “Who’s Winning the Clean Energy Race? G-20 Clean Energy Factbook.” Pew Charitable Trusts, 2010. (PDF) © The Pew Charitable Trusts. All rights reserved. This content is excluded from our Creative
Commons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/. Buonassisi (MIT) 2011
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Solar Energy: Recent Boom
Eric Wesoff & Michael Kanellos The Venture Power Report
Courtesy of Greentech Media. Used with permission.
http://www.greentechmedia.com/articles/read/the-master-list-of-early-stage-solar-startups-the-sequel/
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Solar Start-Ups • >200 solar start-ups worldwide. • Few failed start-ups to date: Wakonda, Solasta, SV Solar, Senergen, Optisolar, Solyndra,
SpectraWatt, Evergreen Solar. • More failed start-ups coming (main cause: failure to raise capital for manufacturing, failure
to reduce costs faster than state-subsidized production elsewhere, failure to secure investor confidence).
• Eric Wesoff (Greentech Media) keeps tabs on each, publishes list. •http://www.greentechmedia.com/articles/read/the-master-list-of-early-stage-solar-startups-the-
sequel/ •http://www.greentechmedia.com/articles/read/Solar-Start-Up-Bloodbath-2010/
Source: Eric Wesoff, Greentech Media
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RE Companies & Start-Ups in the New England Area
© New England Clean Energy Council and Google. All rights reserved. This content is excluded from ourCreative Commons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
http://www.cleanenergycouncil.org/clustermap 25 Buonassisi (MIT) 2011
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U.S. Trends in RE Manufacturing
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Solar Manufacturing in the United States
Figure removed due to copyright restrictions.See lecture 20 video for details about where various PV technologies are manufactured.
http://www.gtmresearch.com/report/pv-manufacturing-in-the-united-states-market-outlook-incentives-and-supply
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Solar Manufacturing Support in the United States
State Support
Figure removed due to copyright restrictions.See lecture 20 video for details of state-by-state grants, loans, and tax incentives.
http://www.gtmresearch.com/report/pv-manufacturing-in-the-united-states-market-outlook-incentives-and-supply
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Solar Manufacturing Support in the United States
Federal Support: Advanced Energy Manufacturing Tax Credit
30% of qualified investment, not to exceed US$2.3bi.
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Global Trends in RE Installation
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Market Incentives via RE Policy
Germany U.S. China
Source: “Who’s Winning the Clean Energy Race? G-20 Clean Energy Factbook.” Pew Charitable Trusts, 2010. (PDF)
© The Pew Charitable Trusts. All rights reserved. This content is excluded from our Creative
Commons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
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RE Investment, by Type and Sector
Source: “Who’s Winning the Clean Energy Race? G-20 Clean Energy Factbook.” Pew Charitable Trusts, 2010. (PDF) © The Pew Charitable Trusts. All rights reserved. This content is excluded from our Creative
Commons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
Asset finance: Installation, capacity expansion… Public markets: Stock offerings, IPOs…
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Source: Michael Liebreich (chief executive, Bloomberg New Energy Finance) testimony at “The Global Clean Energy Race,” hearing of House Select Committee on Energy Independence and Global Warming, September 22, 2010. Testimony slides (PDF).
© Bloomberg New Energy Finance. All rights reserved. This content is excluded from ourCreative Commons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
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Global Trends in R&D
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© Goldman Sachs. All rights reserved. This content is excluded from our CreativeCommons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
From Gilman, D. “The new geography of global innovation.” Goldman Sachs Global Markets Institute, Sept. 20, 2010. (PDF)
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China’s stated 2020 target: 2.5% of GDP
© Goldman Sachs. All rights reserved. This content is excluded from our CreativeCommons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
From Gilman, D. “The new geography of global innovation.” Goldman Sachs Global Markets Institute, Sept. 20, 2010. (PDF)
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© Goldman Sachs. All rights reserved. This content is excluded from our CreativeCommons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
From Gilman, D. “The new geography of global innovation.” Goldman Sachs Global Markets Institute, Sept. 20, 2010. (PDF) Buonassisi (MIT) 2011 37
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© Goldman Sachs. All rights reserved. This content is excluded from our CreativeCommons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
From Gilman, D. “The new geography of global innovation.” Goldman Sachs Global Markets Institute, Sept. 20, 2010. (PDF)
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© Goldman Sachs. All rights reserved. This content is excluded from our CreativeCommons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
From Gilman, D. “The new geography of global innovation.” Goldman Sachs Global Markets Institute, Sept. 20, 2010. (PDF)
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Technology Evaluation
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Task: Evaluate a New PV Tech
• Why?
– You’re a job applicant – You’re an inventor – You’re an investor
• How?
– Analyze physics
– Analyze cost, scale potential & manufacturing
– Analyze markets
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total absorptionexcitation drift/diffusion separation collection
2.626/2.627: Fundamentals Every photovoltaic device must obey:
Conversion Efficiency Output Energy
Input Energy
For most solar cells, this breaks down into: Inputs Outputs
Charge Excitation
Charge Drift/Diff
usion
Charge Separation
Light Absorption
Charge Collection
Solar Spectrum
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total absorptionexcitation drift/diffusion separation collection
Liebig’s Law of the Minimum
S. Glunz, Advances in Optoelectronics 97370 (2007)
Image by S. W. Glunz. License: CC-BY. Source: "High-Efficiency Crystalline Silicon Solar Cells." Advances in OptoElectronics (2007).
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Customer Needs
on-grid off-grid consumer high efficiency
Images removed due to copyright restrictions. See the lecture 20 video.
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Levers of Cost
T. Surek et al., Proc. 3rd World Conference on Photovoltaic Energy Conversion, Osaka, Japan (2009) © IEEE. All rights reserved. This content is excluded from our Creative Commonslicense. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
Cost Levers: • Efficiency
• Processing Costs ($/m2)
• Manufacturing Yield
• Capital equipment cost
• Overhead< • Other<
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Manufacturing Technology
Courtesy of Prof. Satyendra Kumar, Dr. Sanjay K. Ram, et al. Used with permission.
Vacuum Based: Large capex, Potential for high performance
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Resource Availability, Scaling
http://www.aps.org/publications/apsn ews/201103/energycritical.cfm
© APS and MRS. All rights reserved. This content is excluded from our CreativeCommons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
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Source: Michael Liebreich (chief executive, Bloomberg New Energy Finance) testimony at “The Global Clean Energy Race,” hearing of House Select Committee on Energy Independence and Global Warming, September 22, 2010. Testimony slides (PDF).
© Bloomberg New Energy Finance. All rights reserved. This content is excluded from ourCreative Commons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
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© Deutsche Bank AG. All rights reserved. This content is excluded from our CreativeCommons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
Deutsche �ank �limate �hange !dvisors; “The German Feed-in Tariff for PV: Managing Volume Success with Price Response;” May 23, 2011. (PDF)
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Convergence Between PV and Conventional Energy Scale
Inception (Phase I: 1977–1981, 50% CAGR). Carter president, SERI ramps up. Stagnation (Phase II: 1985–1995, 12% CAGR). Oil prices & government support
plunge. PV manufacturing sustained by big oil (BP Solar, Mobil Tyco). Scale (Phase III: 2000–2010, 48% CAGR) Strong government subsidies for
installation & manufacturing in JPN, DE, US, EU, CN. PV manufacturing led by electronic (Sharp) & “pure-plays” (Q-Cells, First Solar, Suntech).
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Other Intangibles
• Team
• Financing
• Patent Portfolio • <
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Examples
• Solar Paint
• Wundermaterial
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Path Forward
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Source: Michael Liebreich (chief executive, Bloomberg New Energy Finance) testimony at “The Global Clean Energy Race,” hearing of House Select Committee on Energy Independence and Global Warming, September 22, 2010. Testimony slides (PDF).
© Bloomberg New Energy Finance. All rights reserved. This content is excluded from ourCreative Commons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
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Cost Tipping Point
Source: U.S. Department of Energy
•Premise: High cost of PV limits market adoption. •At $1 per peak watt (Wp), PV electricity ~5¢/kWh.
•At 5¢/kWh cost, PV cost-competitive with bulk electricity in most US states.
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Towards $1/Wp
$1.48 $0.97
$0.40
$0.22
$0.18
$1.70
$1.05
$0.50
0
2
4
6
8
Inst
alle
d S
yste
m C
ost
($
/Wp
) PV Module
Inverter
BOS/Installation
$0.10
2004 2010 2016 $1/Wp (est.) DOE Goal Target
>3x PV module cost reduction necessary for $1/Wp.
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Electricity Consumption
The World at Night
57 Source: NASA (public domain)
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Solar Resource
Source: NASA Earth Observations (public domain)
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Solar Supply Well Matched to Future Energy Demand
Source: NASA Earth Observations (public domain)
http://eosweb.larc.nasa.gov/sse/
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Need for Innovation in PV 99% of solar panels have yet to be produced.
$6bi VC investment lost is drop in bucket compared to GDP. (There will be others).
Momentum, capital, innovation culture.
BUT… Rest of world catching up fast, increased competition.
Need concerted R&D efforts focused on key targets. Better investments, smarter choice of technologies.
Need to change the way we innovate: leverage collaborative work, pooled resources, improve industry-university-lab relations, direct-to-manufacturing innovation.
Need for a steady, predictable market necessitates progressive & steady industrial policy.
Need more investment in education.
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How You Can Get Involved Expose yourself to new ideas, learn how the system works Intern at the DOE
!dvanced Research Projects !gency • Energy (DOE !RP!-E)
Solar Energy Technologies Program (DOE-EERE)
Do a UROP
Many options: http://pv.mit.edu/your-involvement/students/ http://web.mit.edu/MISTI/
Intern at a company
Know your fundamentals (physics, chemistry, and biology). Become comfortable applying these to interdisciplinary problems.
Choose meaningful use-inspired scientific project(s) grounded in solid economic motivation.
Develop a strong interest in a value-added field, leverage any and all resources available to you, and excel at something you’re passionate about (so you’ll become 20x more productive than your global competitor).
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MIT OpenCourseWarehttp://ocw.mit.edu
2.627 / 2.626 Fundamentals of PhotovoltaicsFall 2013
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