Solar Electric Interest Group (SEIG)

June 3, 2008

2© 2007 Electric Power Research Institute, Inc. All rights reserved.

Announcement

Webcast Recording Notice• We are recording this webcast and its audio discussion• Your continuing participation in this webcast provides

consent to the recording• If you do not consent, you should end your participation

3© 2007 Electric Power Research Institute, Inc. All rights reserved.

Web Cast Agenda

Time Topic Presenter

10 min Welcome, introductions, agenda Greg Nelson (PNM)

15 min SEIG activities and 2008 annual plan Cara Libby

25 min Member updates on solar projects All

5 min SEPA’s Germany Fact-Finding Mission Cara Libby

5 min EPRI solar supplemental projects Tom Key, Terry Peterson, Cara Libby

4© 2007 Electric Power Research Institute, Inc. All rights reserved.

What is SEIG?

• Goals of EPRI Solar Electric Interest Group – Share best practices with a network of knowledgeable peers– Participate in collaborative RD&D activities that help to define the

future role of solar energy in the utility industry– Enhance corporate experience and image as leaders in solar

applications– Stay abreast of advances in solar PV cost, efficiency, and

business models for power production– Better understand and define the role of central station solar

(CSS) in the future generation portfolio– Collaborate with industry organizations to develop joint projects

(e.g., CSS database, utility business models)

5© 2007 Electric Power Research Institute, Inc. All rights reserved.

Membership/Participation

SEIG Members from P84American Electric PowerArkansas Electric Coop Corp.

Central Hudson Gas & Electric Corp.CPS EnergyDairyland Power Coop.

Exelon

Golden Valley Electric Assn., Inc.

Hoosier Energy Rural Electric Coop.Kansas City Power & Light

Lincoln Electric SystemNebraska Public Power District

Oglethorpe PowerTri-State G&T Association, Inc.

Current MembersArizona Public Service

Avista Utilities

BC Hydro

California Energy Commission

Hawaiian Electric Company

Nevada Power / Sierra Pacific Resources

Pacific Gas & ElectricPacifiCorpPublic Service Company of New Mexico

Progress Energy Inc.Southern California Edison

Sacramento Municipal Utility District

Southern Company

Salt River Project

Xcel Energy

SEIG CollaboratorsNREL

Sandia

EIA

SEPA

EPRI Consultants

* New members in bold font

6© 2007 Electric Power Research Institute, Inc. All rights reserved.

EPRI Solar Website: www.epri.com/seig

• Public website launched in August 2007

– Technical reports– Presentations– Events calendar– Links to solar

websites– News– Project notices– Image gallery

• Solar Electric Interest Group (SEIG) members can access members- only collaboration site

7© 2007 Electric Power Research Institute, Inc. All rights reserved.

SEIG Activities in 2008

• Feb. 19-21: POWER-GEN RE 2008 (Las Vegas)• Feb. 25-28: EPRI Generation Advisory Meeting & Tour of PV facilities (Tempe, AZ)

Date Activity Location

Late July/August(1.5 days)

Commercial PV• Review of SEPA’s Germany Fact-Finding Mission• Tours of Bay Area manufacturing facilities and/or commercial PV

installations: FedEx, Google, Santa Rita Jail• Speakers: SunPower, BrightSource, GreenVolts, Applied Materials, Zantrex

EPRI (Palo Alto)

Sept. 22-23* EPRI Generation Advisory Meeting• Informal hosted networking dinner

Arlington, VA

Oct. 13-15* SEPA Solar Power 2008 Conference• Informal hosted networking dinner

San Diego, CA

November Southwest Solar Developments• Emcore (and Schott?) tour• Dish Stirling and tower demonstrations at Sandia• PNM update on NM CSSP project• John Wiles, New Mexico State University – application of National Electric

Code to PV systems

Albuquerque, NM

* Choose either Sept. or Oct. event for hosted dinner

Member Updates• PV Deployment

News

• Plant Announcements

• Integration Studies

• New Program

• Utility Ownership Models

• SEPA Update

• Other

9© 2007 Electric Power Research Institute, Inc. All rights reserved.

Germany Fact Finding Mission Sponsored by SEPA and First Solar

• Participants: APS, Avista, BC Hydro, CPS Energy, PG&E, SRP, SCE, Southern Company

• Meetings with German utilities: – Badenova– EnBW Energie Baden-Württemberg AG– RWE Transportnetz Strom GmbH

• Tours– Solar Fabrik manufacturing plant– Franhofer Institute– First Solar 1.8 MW rooftop installation

(Muggensturm) – First Solar 432 kW ground mount installation

(Karlsruhe) – Phoenix Solar presentation at Remote

Monitoring Facility (Ulm) – 6.3 MW SunPower installation (Muhlhausen)

• Intersolar tradeshow

10© 2007 Electric Power Research Institute, Inc. All rights reserved.

Solar Assisted Steam Cycles

• Conceptual design study and one or more detailed case studies to evaluate solar augmented steam cycles

• Focus on natural gas plants in first phase

• Case study includes solar technology review, site assessment, integration analysis, and development of generic plant layouts with workable drawings and schematics

• Generic proforma model to estimate cost of electricity for various operating scenarios and plant design options

Value:• Avoid fuel costs• Reduce emissions• Participate in renewable energy credit

markets• Meet renewable energy goals

Illustration of a possible cycle in which a solar field supplies steam to a natural gas combined cycle plant (Source: Abengoa)

• Supplemental project notice available next week• Webcast will be held June 27 to get feedback

11© 2007 Electric Power Research Institute, Inc. All rights reserved.

Continuing Supplemental Projects

• STEP– Improved model for

techno-economic evaluation of CSP

• HEPV– Third Generation - Very

High-Efficiency Solar Cells Study

12© 2007 Electric Power Research Institute, Inc. All rights reserved.

Other Project Ideas

• Integration of central PV: incremental regulation needed and the corresponding effects on operation and emissions of other plants

• Thermal energy storage• Grid integration vs. PV DC • Integration of wind and solar