1) AMERICAN CHEMISTRY COUNCIL, INC.

2) AREVIA POWER

3) BRADFORD WHITE CORPORATION

4) DUKE ENERGY CORPORATION

5) ENTEK TECHNOLOGY HOLDING, LLC

6) EXELON CORPORATION

7) HIGHLAND ELECTRIC FLEETS

8) INTERNATIONAL MOTORS, LLC

9) LENNOX INTERNATIONAL INC.

10) NEWRANGE COPPER NICKEL LLC

11) TALEN ENERGY (FKA TALEN ENERGY SUPPLY, LLC)

12) THE INTERSTATE NATURAL GAS ASSOCIATION OF AMERICA

13) TRANSCANADA PIPELINES USA LTD

14) VENTURE GLOBAL LNG, INC.