Andrea Coon WREGIS Administrator acoon@wecc 801-883-6851 NARUC Annual Convention

1. Western Renewable Energy Generation Information System Andrea Coon WREGIS Administrator acoon@wecc.biz 801-883-6851 NARUC Annual Convention Anaheim, California November 12, 2007

2. What Is WREGIS? • An independent, renewable energy registry and certificate tracking system for the Western Interconnect region • WREGIS has two components: • Information system (software) • Administrative operations housed at the Western Electricity Coordinating Council (WECC)

3. How We Got Here • Three policy drivers (2002-2003) • Western Governors’ Association • Resolution supporting creating an independent regional renewable energy tracking system • California Renewables Portfolio Standard • CEC charged with developing a regional certificate-based renewable energy tracking system to verify compliance • Western Regional Air Partnership • Endorsed establishing a regional institution to spur development of renewable energy to mitigate regional air pollution and haze

4. How We Got Here (Cont.) • 2003-04 • Regional stakeholder support emerged • Year-long process assessed needs for WREGIS and designed system functionality • 2005-2006 • Stakeholder and regulator vision execution • Mid-2007 • User-driven process in place • WREGIS Committee & Stakeholder Advisory Committee • “Go-Live” June 25th

5. WREGIS Territory and Scope • Western Interconnect • 14 states, 2 Canadian provinces, and a portion of Baja California • Alberta, Arizona, British Columbia, California, Colorado, Idaho, Montana, Nebraska, Nevada, New Mexico, Oregon, South Dakota, Texas, Utah, Washington, Wyoming • WREGIS is similar to other REC tracking systems across the United States

6. WREGIS Basics • Generators, load serving entities, retail sellers, marketers, and others may open WREGIS accounts • Generators sign an agreement with WREGIS to report 100% of their generation • Certificates may be transferred within an account or to accounts of others • Certificates may be permanently retired

7. Regulatory Uses • Helps regulators implement RPS • Utilities retire certificates to show compliance with renewable obligation or voluntary program • WREGIS allows user to specify reason for retirement • Use of WREGIS is free for Regulators • Regulators use WREGIS data to verify certificates meet program eligibility • WREGIS does not determine program eligibility, but will record eligibility if State provides the determination

8. Regulatory Uses (Cont.) • Provides reports to users and regulators • Provides mechanism to incorporate RECs from small DG systems into programs • Provides multi-year banking functionality • e.g., if program has “roll-over” provisions

9. Why is WREGIS Important? • Policy neutral • Uses independent and reliable data • Helps states and provinces in compliance markets and with voluntary policies and programs • Protects against double-counting • Increased credibility and consumer confidence

10. Who will use WREGIS for RPS? • Currently several states and a voluntary program have either mandated use for RPS compliance or are recommending use for compliance on some level • California • Montana • New Mexico • Oregon • Washington • Green-e

11. Possible Future Uses of WREGIS • Discussions regarding other uses are ongoing • There is a possibility of adding emission tracking, not in WREGIS current scope • White tag tracking is possible with alterations to the software • With additional functionality, it could serve as a platform for tracking other environmental attributes in the west • Policy must come first

12. Region vs. Nation • Currently 6 regional tracking systems in place in U.S. and Canada • Tracking systems currently account for state by state differences • Software could be easily made compatible to enlarge renewable markets to nationwide

13. Questions & Answers Andrea Coon WREGIS Administrator acoon@wecc.biz 801-883-6851 www.wregis.org