1) alliantgroup

2) Altria Client Services LLC

3) American Bus Association

4) American Investment Council

5) Avangrid

6) Citadel LLC

7) Clearway Energy Group

8) E.ON Climate & Renewables North America Inc.

9) EDF Renewable Energy

10) Invenergy Wind, LLC

11) Lincoln Clean Energy, LLC

12) Morgan Stanley Dean Witter & Company

13) National Venture Capital Association

14) NextEra Energy, Inc.

15) Pattern Energy Group

16) Securities Industry and Financial Markets Association

17) Terra-Gen Power LLC

18) The Large Public Power Council

19) United Services Automobile Association

20) Vestas-American Wind Technology, Inc.

1) alliantgroup

2) Altria Client Services LLC

3) American Bus Association

4) American Fuel and Petrochemical Manufacturers (AFPM)

5) Avangrid

6) Barrick Gold Corporation of North America Inc.

7) Charter Communications

8) Clearway Energy Group

9) E.ON Climate & Renewables North America Inc.

10) EDF Renewable Energy

11) Exelon Business Services Co., LLC

12) Ford Motor Company

13) Hallmark Cards

14) Health Care Service Corporation

15) Invenergy Wind, LLC

16) Lincoln Clean Energy, LLC

17) Marathon Petroleum Company LP

18) Mondelez International

19) Morgan Stanley Dean Witter & Company

20) National Council of Farmer Cooperatives

21) NextEra Energy, Inc.

22) Pattern Energy Group

23) Terra-Gen Power LLC

24) The Bank of New York Mellon

25) The Goldman Sachs Group, Inc.

26) The Northwestern Mutual Life Insurance Company

27) Tinuum Group LLC

28) Vestas-American Wind Technology, Inc.

29) Westlake Chemical Partners, LP

1) American Bus Association

2) Avangrid

3) Clearway Energy Group

4) Coalition for American Insurance

5) E.ON Climate & Renewables North America Inc.

6) EDF Renewable Energy

7) Health Care Service Corporation

8) Honeywell International Inc.

9) International Paper Company

10) Invenergy Wind, LLC

11) Lincoln Clean Energy, LLC

12) Mondelez International

13) National Council of Farmer Cooperatives

14) NextEra Energy, Inc.

15) Pattern Energy Group

16) Terra-Gen Power LLC

17) The Medical Device Competitiveness Coalition

18) The Northwestern Mutual Life Insurance Company

19) United Services Automobile Association

20) Verizon Communications, Inc. and various subsidiaries

21) Vestas-American Wind Technology, Inc.