Seminario: Pequeños sistemas modulares para centrales solares termoeléctricas Coorganizado IMDEA Energía con EOI

1. TESSERA SOLAR
1 Julio 2010

2. Table of Contents
(I) Background and Overview
(II) Technology
(III) Maricopa Solar Case Study
(IV) Utility Scale or Distributed Systems

3. (I) BACKGROUND AND OVERVIEW

4. SES & Tessera Solar Corporate Profile
$155m investment (controlling stake) in
SES / Tessera Solar since May 2008
Leading international developer and
operator of renewable energy and
NTR plc waste management assets
Sold Airtricity for 1.8bn to E.ON and SSE
in 2007/08
Based in Ireland with more than 4,100
Solar employees worldwide
Pioneers
Global developer of large scale solar
projects using the SunCatcher
SES Ltd. technology
1.5 MW reference plant operational since
December 2009 in Arizona
Around 60 employees worldwide
Engineering / Manufacturing Project Development TSI - London based entity leading
international development
Tessera Solar Tessera Solar TSA - Three existing PPAs for up to 1,627
SES Inc. Americas International MW in California and Texas
(TSA) (TSI)
Developer and manufacturer of the
SunCatcher Technology
Formed in 1996 to develop and
commercialise Dish-Stirling technology
Over 100 employees based in Phoenix
NTR backed vertically integrated concentrating solar power company

5. NTR Track Record of Success
Pre 1999 1999 - 2002 2002 - 2006 2007 - 2008
Toll Road Pioneer Irish Diversification Int l Development Transition
Today
Sale & RECYCLING
UK 2003 Ireland
1984 1999
US 2006
monetisation
UK
$780m
North
America
Sale of NA &
UK 2002 European SOLAR
1990 1999
businesses Americas
US 2004
$2.8bn and
International
Germany
Withdrawal
2001 2006
from Germany WIND
US 2007
North
America
Merged with
2002
Imagine
ETHANOL
North
America
Acquired
2008
TOLL ROADS
Acquired Ireland
2008
Acquired
2008 WATER
Ireland
Leading international operator and developer of renewable energy and sustainable waste
management

6. SES and Tessera Solar History
May 08 - NTR plc Tessera Solar is Commiss. of
Signs Power Purchase (renewable energy formed by Maricopa
Agreements with each of operator and developer) splitting the Solar, the first
San Diego Gas & Electric completes a $100m development commercial
Formed in 1999 in Phoenix, SES (750 MW) and Southern investment in May to take and plant using
acquires dish system technology California Edison (850MW) a controlling interest in manufacturing SunCatcher
previously developed by McDonnell SES (followed by a further business of SES technology
Douglas, Southern California Edison, $55m in November 2009) (PPA with
the Dept. of Energy and Sandia SRP)
National Laboratories
1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
Focus on Integration well underway - Reference plant
developing and headcount triples in first six Maricopa Solar
commercialising months construction start
the SunCatcher Hire of key management with
technology for relevant business / finance
solar thermal expertise (e.g. GE, BP, Ford,
applications Goldman Sachs, Lazard)
2 x AFCs submissions (key
permitting filing in CA) filed with
the CEC
4 new dishes using the X0 design
are successfully constructed and
commissioned at Sandia
Two of world s largest solar PPAs in California Significant expansion driven by NTR investment

7. SunCatcher Operational Experience
Legacy and Pedigree
1970s
Track record of 30+ years of R&D and testing at a total cost of $500m
1990s
Model Power Plant (MPP)
In 2004, SES began construction of a 150 kW pilot plant at Sandia
2004
Six 25 kW SunCatchers in operation at Sandia National Lab. (NM, US)
since 2005/2006
New Generation of Dishes X0
Four X0 dishes deployed at Sandia in early 2009 as part of the MPP
2009
Accelerated life testing of a further 6 engines being performed in
cooperation with McLaren
Maricopa Solar Plant (MSP)
1.5 MW (60 units) commercial power plant in Peoria, Arizona
Plant is online since December 2009 was officially opened on 22 2010
January 2010
Large Scale Commercial Deployments
Proven testing record and system based on known technologies
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8. SunCatcher Commercialisation
Past Today
Technology Commercialization Program Commercialization
Product Commercialization
Supply Chain Development
Development Projects
- Model Power Plant (on-sun)
- ALT Test Rigs
- Reference plant (Maricopa)
Company Infrastructure
Goals
Starting Point US & International Markets
30 Year History Supply Chain US Based
Development units Independent Engineers
with Global Reach
HB, NV, SA, SNL report (RW Beck) to
validate SunCatcher Ultra-Low Cost Systems
Model Power Plant High Volume
technology
6 Systems Manufacturing
(1Q10)
SES Supply Chain
Advanced Systems
Units redesigned for high volume manufacture

9. (II) TECHNOLOGY

10. SunCatcher
25 kW solar power system
The system consists of a solar concentrating dish
structure that supports an array of parabolic
mirrored facets
Dish concentrator tracks, collects, and focuses the
Sun s energy onto solar receiver tubes which contain
hermetically sealed hydrogen gas
This heats and pressurizes the gas in the heater head
tubing, powering a high-efficiency four-cylinder,
reciprocating Solar Stirling Engine
The Stirling engine converts thermal energy to grid-
quality electricity by utilizing hydrogen as an internal
working fluid that is recycled through the engine
A new paradigm clean energy solution
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11. SunCatcher Key Components

12. Stirling Engine & Generator
Stirling Engine
Generator

13. SunCatcher Stirling Engine
Piston Rod
Receiver Body
Regenerator
Cooler
Cylinder Block
Crankshaft
The Stirling Engine Invented in 1816

14. The SunCatcher 30+ years of development
Developed by leading solar industry pioneers: Ford, Kockums, Boeing,
McDonnell Douglas, Southern California Edison, the Department of Energy
and Sandia National Laboratories
Track record of 20+ years of R&D and testing at a total cost of $500m

15. CSP Technology Overview
The table below outlines the key characteristics of the various CSP technologies
Trough
Trough Tower Tower CLFR CLFR Dish Dish
Concentration Ratio 70-80 300-1,000 25-100 1,000-3,000
250oC (482oF) -
Current Operating 500+ oC 800oC (1,472oF) -
Temperatures 400oC (750oF) (1,000+ oF) 316oC (600oF) 900oC (1,652oF)
Average Net Conversion
Efficiency 11 - 14% 15 - 22% 9 - 11% 24 - 27%
Area requirements (MW
/sq mile) 100 - 128 60 - 80 180 100 SunCatcher
Near Term: Oil Near Term: Near Term:
Future: Steam, Steam, Molten Steam Future: Near Term: -
Technology Attributes
Heat Transfer Fluids Molten Salt Salt Molten Salt Future: -
1 dimension 2 dimension 1 dimension 2 dimension Lowest Cost
rotational rotational rotational rotational
Tracking method tracking tracking tracking tracking
Water usage (cooling & 24 years 1 year
washing) (m3/MWh) 2.940 2.800 - 0.019 Lowest Water Use
Stow speed: -
Damage:150 Stow speed:35
Stow speed: 23 Stow speed: 22.5 mirrors, 100 Damage: 90 - Highest Efficiency
Wind resistance (mph) Damage: 50 - 84 Damage: 87 receiver array 100
Parasitic Loss 10 - 14% 2 - 5% - 3 - 5%
Announced Project
Pipeline(specific projects Modular Design
with completion dates
through 2016) 6,011 MW 2,579 MW 748 MW 1,750 MW
Aggregate VC funding $126.4M $440 M $109.1 M $166.5 M
Abengoa,
Terrain Flexibility
Acciona, SkyFuel, BrightSource, Ausra, Novatec, & Minimal Land
Stirling Energy
Solel, Solar eSolar, SENER, Biosol, SkyFuel, Systems (SES) /
Disturbance
Millennium, SolarReserve, Solar Power Tessera Solar,
Key Developers Sopogy Abengoa Group Infinia, Abengoa
Source: Cleantech, Technology Innovation Report - Concentrated Solar Thermal, October 2008
The only modular, low water usage CSP technology with record breaking efficiency

16. (III) CASE STUDY- MARICOPA SOLAR

17. Maricopa Solar Tessera Solar s First Commercial Plant
1.5 MW (60 units)
commercial power plant
in Peoria, Arizona
Fully assembled and
online in late 2009
PPA with Salt River
Project
Full commissioning 15th
March 2010
Unveiled world s first commercial-scale SunCatcher Plant with Utility Partner Salt River Project on
22nd January 2010

18. Maricopa Solar: Installation of Pedestals
§A low-amplitude vibratory piling
§No excavation
§No grading
§No concrete
§Ease of decommissioning

19. Dish Assembly
§ The Maricopa reached a
target rate of assembling
2.5 dishes per day
§ A PCU can be swapped for
routine or unplanned
maintenance in <15 min

20. (IV) UTILITY SCALE VERSUS DISTRIBUTED SYSTEMS

21. Large V Small Scale Solar
June 29th 2010
... energy experts now say developers' focus
should be on deploying smaller solar plants ...
But can CSP tap into this interim market for SunCatcher
Technology Attributes
distributed energy, or must it always be limited
to utility-scale applications? Lowest Cost
Building large central station solar plants and
Lowest Water Use
transmission lines to remote desert locations
also involves major environmental trade-offs in
Highest Efficiency
terms of water usage and impact on virgin
desert Modular Design
The technology that is expected to dominate
the distributed generation market is Terrain Flexibility
& Minimal Land
photovoltaics (PV). Most agree that CSP will Disturbance
be left to niche applications.
Scaling down SunCatcher technology is easier than other CSP due to low water usage and
modularity
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22. Solar Technology Landscape
<10kW to 100MW 25MW to >100MW
Dish systems occupy a unique space between conventional CSP and PV Systems

23. SunCatcher Modularity
The modularity of the design allows commissioning of smaller blocks which significantly reduces
commissioning risk and enables revenues during the construction phase

24. Tessera Solar Americas Projects
Tessera Solar Americas has PPAs for up to 1,627 MW in place
Calico Solar 1, California (850MW) Imperial Valley Solar 2, California (750MW) Western Ranch, Texas (27MW)
Permitting completed; BLM Permitting completed; BLM Permitting in process Q2/3 2010
grant and CEC certification grant and CEC certification completion
expected Q3 2010 expected Q3 2010
EPC - Mobilization for
Phase I (275MW) Mobilization Phase I(300MW) Mobilization construction 4Q 2010 Final
for construction Q4 2010, Final for construction Q4 2010, Final COD Q1 2011
COD Q2/3 2012 COD Q1/2 2012
Ongoing negotiation for
Phase II (575MW) Mobilization Phase II (450MW) Mobilization extension up to 54MW
for construction Q3/4 2013 Q4 for construction Q3 2011,COD
2013, COD Q4 2015/Q1 2016 Q4 2013/Q1 2014
Large scale deployment of SunCatchers to start in 2010

25. Maricopa Solar
Thank You
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26. Maricopa Solar
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