solar thermal overview

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NATIONAL SOLAR ENERGY CONFERENCE

Solar Electric Generating System for Nevada

ELDORADO SOLAR ELECTRIC GENERATING SYSTEM

Portland Or, July 13, 2004

Gilbert E Cohen

Vice President of Engineering & Operations

Email:[email protected]

Web site: www.solargenix.com

ASES 2004
http://www.solargenix.com/http://www.solargenix.com/http://www.solargenix.com/


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Discussion topics

Solargenix Energy LLC (SGE), the Company

SGE technology of choice

Brief history of PT

Simple schematic

Nevada Eldorado SEGS Project status

Arizona Red Rock Saguaro solar power plant Concluding remarks


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Solargenix Energy, LLC

Corporate Headquarters: Raleigh, NC

Branch Offices

Sanford, North CarolinaLas Vegas, Nevada

Newport Beach, California

Manufacturing

Chicago, Illinois

Engineering and RD&D branches

California, Colorado, Europe


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Solargenix Energy initiative for the development ofAn advanced Concentrating Solar Power Plant

in Boulder City Nevada


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THE PARABOLIC TROUGH

TECHNOLOGY

Solargenix Energytechnology of

choice for theNevada Solar

project


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Renewable EnergyWith Proven Solar Thermal Electric Technology

With the first CSP projectunder construction since 1991,

and a large utility-scale solarplant in advanceddevelopment phase,Solargenix is the leadingdeveloper of CSP in the USA.


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Evolution of the technology September 1, 1907

Parabolic Trough Collector


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1912: 55 kW

by Shuman in Egypt

Kramer Junction 1988

LUZ - LS3

September 1, 1907


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December 30, 2003SGE NEWCONCEPT


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SIMPLE SCHEMATIC OFPARABOLIC TROUGH OPERATION

(North-South Axis)

SIMPLE SCHEMATIC OFPARABOLIC TROUGH OPERATION

(North-South Axis) The SEGS utilize Parabolic Trough Collectors

which is a Concentrating Solar Power (CSP)Technology

CSP Technologies utilize Direct NormalRadiation (DNR) which is measured in termsof Watts per Square Meter (good sunlightyields ~1,000+ Watts/m2)

Concentration Ratio

Solargenix 71:1 (71 Suns)


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Simple schematic of a typical SEGS power plant

Solar Collector Assemblies: 640

Aperture Area (m/Sq.ft): 5.0 / 59Length (m/ft): 100/328Concentration Ratio: 71Optical Efficiency: 0.77# of Mirror Segments: 157440

# of receiver tubes 15360Field Aperture (m): 300,320Site area (Km/acres): 1.40/350Field Inlet Temp.(C/F): 350/662

Field Outlet Temp. (C/F): 395/743

SOLAR FIELD

65 MW solar field 25 Minutes Storage

The solar thermal industry and especially the ConcentratingSolar Power industry are being developed worldwide in a

rapid pace, this should attract more large manufacturers toconsider the production of solar field components atattractive costs.


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Solargenix Advanced Parabolic Trough

No Site Cutting or Welding

Weight Incl. Mirrors ~ 22 kg/m2

Length : 100 meters

Solargenix Space Frame

Increased Rigidity via Interlinking

No Jig Necessary for Assembly

Components Easier to Handle and Ship


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Preliminary Test Results: Solargenix Prototype Collector

Tested in Albuquerque - NM

at 940 W/m 2 DNI

50

60

70

80

90

100

0 100 200 300 400

Delta Temp Abv Ambient (Deg C)

MeasEffic

iency(%)

Meas Eff Data Pts to date

Curve Fitted Eff Solargenix

Curve Fitted Eff LS-2 Evac_Cermet;

1994


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POWER BLOCK

Turbine Generator Gross Output 55 MWeNet Output to Utility 50 MWe

Solar Steam Conditions

Inlet Pressure 102 bars/1480 psiReheat Pressure 17.5 bars/254 psiInlet Temperature 371 Deg.C / 700 Deg.F

OPTION ( NOT CONSIDERED IN BOULDER CITY)Gas Mode Steam ConditionsInlet Pressure 102 bars/ 1480 psiReheat Pressure 17.5 bars / 254 psi

Inlet Temperature 510 Deg.C / 950 Deg.F

The market for conventional power plants today is very competitive,leading to

many sources for components at attractive costs


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Supplier of the HeatCollection Element (HCE)

More than 200prototypes installed

at Kramer Junctionin the last two years

No degradation or

breakage reported


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Corporate Structure

Photovoltaics

Solarthermal

Gas Burner

Systems

Home Tech

White Goods

Food Display

H

AdvancedOptical Materialsand Components

Optics for Devices

Ophthalmics

SpecialFlat Glass

Microlithography

Lighting

Components

Digital Projection

Advanced CoatedComponents

O

ElectronicPackaging

Fiber Optics

Cathode RayTube (CRT)

Flat PanelDisplay (FPD)

Electronics

E

PharmaceuticalSystems

PharmaceuticalPackaging

Tubing

Labware

Health

P

Solar

S

B

usinessSegme

nts(BS)

Strategic Business Units (SBU)

SBU


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REFLECTOR

PANELS

Proven Durability

Excellent Reflectivity

Easy to install


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Flabeg GmbH & Co. KG is a company specializedon production of glass products like automotiveand decorative mirrors, glass for solarapplications and architectural products. Thecompany with world-wide activities is located inFrth, Germany. It is well known for theproduction and delivery of more than 2.000.000m2 of mirror surface for all nine existing SEGS-plants built in California.

Supplier of Mirrors

for the Solar Field


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PROJECT STATUS

Long term Power Purchase Agreement signed withNevada Power and Sierra Pacific

Long term lease agreement signed with the Cityof Boulder City, at the Eldorado Valley - Nevada

Long term Water service contract signed withthe City of Boulder City

Development agreement signed with the City of

Boulder City


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PROJECT STATUS (Continued)

Interconnection study Phase 1 completed

Project design in final stages

Financial team selected and in duediligence phase

EPC selection in progress Decision must bemade soon

Permitting process in progress

PROJECT LOCATION


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PROJECT LOCATION

PROJECT LOCATION


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Market Place

ELDORADO VALLEY SOLAR ENERGY PROJECT

NORTH

US 95

NTSDC

Communications

tower

First

of

2 units

Next

of 2

units

vacant vacant

Eldorado Energy,

LLC

Reserved for

Eldorado

Energy,LLC

SOLAR

320 ACRES

South to

Searchlight

FiberOpticCable

PV Plant

Eldorado Valley Drive

SWG High Pressure

Gas Transmission Lines

gas line

Power

Block


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Why this project is feasible?

Reliability of Solar Field


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e ab ty o So a e d

Because : Past experience shows:

Evidence of longevity Satisfactory performance of existing plants


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Operation and Maintenance

O&M will be done under long term contract by qualified Solargenixoperators with substantial experience in that field.

O&M contract may provide variable payment rates depending on plantoutput.

One Operating Company for several projects.

Efficient tooling and procedures have been developed for O&M0

100

200

300

400

GrossSolarProduction-GWh

8

10

12

14

16

18

20

22

O&MCosts-

M$

1992 1993 1994 1995 1996 1997

Net Production O&M Costs - M$

O&M Costs vs. Production

Kramer Junction SEGS


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Reliable prediction of solar radiation levels

Although Solar radiation varies from year to year, the UShas an excellent track record of solar radiationmeasurement.

Sophisticated and unique output performance modelshave been developed, proved and validated during thepast 10 years.

Financial sensitivity analysis assume lower insolation

levels.

SOLAR ELECTRIC GENERATING SYSTEMS


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SOLAR ELECTRIC GENERATING SYSTEMS

SOME NEAR OPPORTUNITIES

Solargenix 1 MW project in Arizona.

1000 MW Initiative for CSP in the Southwest of the

USA. Western Governors Associations commitment tothe deployment of 30,000 MW of renewable

energies by 2015. 5000 Mw Global Market Initiative (GMI) adopted atthe World energy summit last month in Bonn

(Germany).

Solargenix strategic alliances in Australia, Mexicoand Spain etc

Renewable Solar Portfolios.


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ARIZONA


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MODULAR DISTRIBUTED SOLAR

TROUGH POWER PLANT

Robert Cable Scott Canada Gilbert Cohen

Solargenix Solargenix


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APS 1 MWe Project Introduction

Project Team

Plant Performance

Plant Layout

Operation

Maintenance

Schedule

Solar Powered Water

Cooled Binary Power

Modular Plant


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Project Team

Strong Project Team for Integration of

two proven technologies.

ORMAT - OEC system.Solargenix - Solar system and Solar Field.

APSGeneral Site Conditions, Oversight,and Utilities.


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Project Location

SolarSite

Approxi

mately

10 acres

Saguaro Power plant is approximately one hour south and east of Phoenix, AZ on I-10.


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Schematic of 1MW Solar Trough Power Plant

Condenser

Recuperator

Turbine / Generator

Feed

Pump

Heat Exchanger

HTF

Pump

Solar

Field

Expansion

Vessel


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Performance Assumptions

2000 MWhr Generated Annually $0.0291/kWh Annual O&M Expenses

95% plant availability (>1 SCAs o/s) 10,346 square meters of aperture (~22 SCAs)

86.5% spectral reflectivity (92.5 cleanliness)

Evacuated receivers (HCEs)


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0

50

100

150

200

250

300

1 2 3 4 5 6 7 8 9 10 11 12

Month

NetElectricalOutput-MWh

Monthly Solar Output1 MW ORC

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1 3 5 7 9 11 13 15 17 19 21 23

Hour

NetElectricalOu

tput-MWh

Peak Day Solar Output Profile

1 MW ORC


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Solar Field

Preliminary

Site Layout

Power Block

Power Plant Operation


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Power Plant Operation

Unattended startup and operation

Optimal parameters developed during 6 month startupperiod

Constant HTF flow

Design SF temperatures: Cold 250F; Hot 580F

Safety Parametershigh wind, low flow, over temp Remote monitoring and control

Integrate Field Control System & OEC control systems

Daily/Customized reports

Sola Field Maintenance


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Solar Field Maintenance

Reflectors0.3% breakage/year. Replace each month.

HCEs1.5% failure rate. Replace in winter. Coincide with outages when

possible.

One loop o/s at a time. Reflectivity maintenance.

1 entire field per/week in summer.

No washing in winter. Other Solar System maintenance.

Valve packing.

HTF pump vibration analysis. Electronic maintenance.


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Groundbreaking of first CSP plant in the US since

1991- Red Rocks Arizona March 24, 2004

Saguaro 1MW solar project Red Rock


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Arizona

JUNE 2004


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In addition to generating electricity for APS customers, the solartrough plant will help APS meet the goals of the Arizona CorporationCommissions Environmental Portfolio Standard, which requires APS

to generate 1.1 percent of its energy through renewable sources 60 percent through solar by 2007.

The Saguaro Power Plant


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The Saguaro Power Plantlocated in Red Rock,Arizona will be thelocation, of a first of itskind, solar thermalelectric power plant. Bycombining two proven

existing technologiestogether a unique systemhas been designed.Solargenix will provide

and design the solartechnology similar indesign to that deployed atthe combined, 354 MWeSEGS plants in California.

Start-up: January 2005

Wrap Up


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Wrap Up

Strong/Proven Team.

Solargenix Energy /ORMAT/APS are strong

leaders in their respective fields.

Performance goals/targets very realistic and

achievable. Project could be used later incorporatingAlternate Fuels or Solar Storage.

ANOTHER EXCELLENT SOLAR ELECTRICPROJECT! Thank you.


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