1) Citizens for Responsible Energy Solutions

2) Combined Heat and Power Alliance (formerly Alliance for Industrial Efficency)

3) EDP Renewables North America LLC

4) First Solar, Inc.

5) OW North America

6) Pattern Energy Group LP

7) Solar Energy Industries Association

8) Space Nuclear Power Corporation

9) TracFone Wireless

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) Southern Spirit Transmission LLC c/o Pattern Energy Group LP

1) Air Products and Chemicals, Inc.

2) Alcoa USA Corp.

3) Austin StadCo LLC

4) Austin TeamCo dba Austin FC

5) Austin TrainingCo, LLC

6) Brazos River Authority

7) CDM Smith Inc.

8) Charter Communications Operating, LLC

9) Chisholm Trail Disposal, LLC

10) Cielo Wind Power LLC

11) Cirrus Logic, Inc.

12) Cook Children's Health Care System

13) CoreView USA, Inc.

14) Covestro LLC

15) Dallas Cowboys Football Club Ltd etal

16) Deloitte & Touche LLP

17) Deloitte Consulting LLP

18) DentaQuest, LLC

19) Distilled Spirits Council of the United States (DISCUS)

20) Eastman Chemical - Texas Operations

21) Flint Hills Resources, LLC

22) Frontier Waste Solutions

23) Georgia-Pacific LLC

24) GEXA Energy

25) Green Group Holdings, LLC

26) Guadalupe-Blanco River Authority

27) Guardian Industries Holdings, LLC

28) H-E-B, LP

29) Houston Astros, LLC

30) Houston Livestock Show and Rodeo, Inc.

31) Houston NFL Holdings, L.P. , DBA Houston Texans

32) Infor(US), LLC

33) INV Nylon Chemicals Americas, LLC

34) Koch Ag & Energy Solutions, LLC

35) Koch Engineered Solutions, LLC

36) Koch Supply & Trading, LP

37) Lone Star Transmission LLC

38) Lottomatrix USA Limited Liability Company

39) Lubbock Power and Light

40) National Football League

41) New Braunfels Utilities

42) NextEra Energy Inc.

43) NextEra Energy Resources LLC

44) North Texas Municipal Water District

45) Novartis Services Inc.

46) Office of the Commissioner of Baseball, DBA Major League Baseball

47) PCII, LLC

48) PGA Tour Enterprises, LLC

49) Phillips Infrastructure.Corporation

50) Puerto Verde Holdings, LLC

51) Rangers Baseball LLC

52) Reagan National Advertising of Austin Inc.

53) Robinhood Markets

54) San Jacinto River Authority

55) SH 130 Concession Company, LLC

56) Silicon Laboratories Inc.

57) SL ENERGY POWER PLANT I, LLC

58) SLR Property I, LP

59) Southern Spirit Transmission, LLC C/O Pattern Energy Group, LP

60) Speedway Motorsports LLC

61) Sports Betting Alliance

62) Texas Irrigation Council

63) Texas Motor Speedway, LLC

64) Texas Waterway Operators Association

65) TEXSAR, Inc.

66) The Exemption Project, Inc.

67) Uranium Energy Corp

1) Southern Spirit Transmission LLC c/o Pattern Energy Group LP

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.

1) Carlyle Investment Management, LLC

2) CVS PHARMACY, INC.

3) GLOBAL KRATOM COALITION, INC

4) MA Insurers Insolvency Fund

5) Pattern Energy Group Limited Partnership

6) PowerOptions, Inc.

1) 3 Elements Group, SA

2) Air Products and Chemicals, Inc.

3) Alcoa USA Corp.

4) Arkansas Electric Cooperatives, Inc.

5) Bayer U.S. LLC

6) BLUEBONNET ELECTRIC COOPERATIVE, INC.�

7) Brazos River Authority

8) CDM Smith Inc.

9) Celanese International Corporation

10) Chisholm Trail Disposal, LLC

11) Cielo Wind Power LLC

12) Covestro LLC

13) Daikin Comfort Technologies North America

14) Eastman Chemical - Texas Operations

15) El Paso and Hudspeth Counties Regional Water Supply Corporation

16) El Paso Water

17) Flint Hills Resources, LLC

18) Foster, Paul

19) Frontier Waste Solutions

20) Georgia-Pacific LLC

21) GEXA Energy

22) Green Group Holdings, LLC

23) Guadalupe-Blanco River Authority

24) Guardian Industries Holdings, LLC

25) Infor(US), LLC

26) INV Nylon Chemicals Americas, LLC

27) Koch Ag & Energy Solutions, LLC

28) Koch Engineered Solutions, LLC

29) Koch Supply & Trading, LP

30) Lone Star Transmission LLC

31) Lubbock Power and Light

32) New Braunfels Utilities

33) NextEra Energy Inc.

34) NextEra Energy Resources LLC

35) North Texas Municipal Water District

36) PCII, LLC

37) Phillips Infrastructure Corporation

38) San Jacinto River Authority

39) SL ENERGY POWER PLANT I, LLC

40) SLR Property I, LP

41) Southern Spirit Transmission, LLC C/O Pattern Energy Group, LP

42) TEXSAR, Inc.

43) Trellis Company and Subsidiaries

44) Uranium Energy Corp

45) Waste Control Specialist, LLC

1) Apex Clean Energy Holdings, LLC

2) Clearway Energy Group, LLC

3) Comcast Corporation

4) Invenergy, LLC

5) IP Renewable Energy Holdings LLC

6) Ligado Networks

7) Longroad Energy Management, LLC

8) Oracle America, Inc.

9) Pattern Energy Group Services LP

10) SLM Corporation

11) T-Mobile US, Inc. (formerly T-Mobile, Inc.)

12) Temptime Corportion

13) The Internet & Television Association

14) TransCanada Pipelines, Ltd.

1) Combined Heat and Power Alliance (formerly Alliance for Industrial Efficency)

2) EDP Renewables North America LLC

3) First Solar, Inc.

4) OW North America

5) Pattern Energy Group LP

6) Solar Energy Industries Association

7) Space Nuclear Power Corporation

8) TracFone Wireless

1) Citizens for Responsible Energy Solutions

2) Combined Heat and Power Alliance (formerly Alliance for Industrial Efficency)

3) EDP Renewables North America LLC

4) First Solar, Inc.

5) OW North America

6) Pattern Energy Group LP

7) Solar Energy Industries Association

8) Space Nuclear Power Corporation

9) TracFone Wireless

10) WTW, Inc.