1) ADVANCED ENERGY UNITED

2) AMERICAN AIRLINES, INC.

3) AMTRAK

4) ARIZONA ASSOCIATION OF MANUFACTURED HOMEOWNERS

5) ARIZONA TRANSIT ASSOCIATION

6) CITY OF CHANDLER

7) COMCAST CABLE COMMUNICATIONS MANAGEMENT, LLC

8) ENVIRONMENTAL DEFENSE ACTION FUND

9) HUALAPAI TRIBE

10) LIBERTY UTILITIES

11) MARICOPA COUNTY SPECIAL HEALTHCARE DISTRICT

12) MERCK SHARP & DOHME LLC. AND ITS AFFILIATES

13) PATTERN ENERGY

14) PLUS POWER

15) VISIT PHOENIX

16) WAYMO LLC