ALLETE, Inc. [ALE]
Alliant Energy Corporation [LNT]
Ameren Corporation [AEE]
Avista Corporation [AVA]

Basin Water, Inc. [BWTRQ.PK]
BBJ Environmental Technologies, Inc. [BBJE.PK]
BPI Energy Holdings, Inc. [BPG]

CenterPoint Energy, Inc. [CNP]
CH Energy Group, Inc. [CHG]
CMS Energy Corporation [CMS]
Commerce Energy Group, Inc. [EGR]
Consolidated Edison, Inc. [ED]

DPL Inc. [DPL]

EESTech, Inc. [EESH.PK]
EVN AG [EVNVY.PK]
Exelon Corporation [EXC]

GDF SUEZ [GDFZY.PK]
Global Environmental Energy Corporation [GEECF.OB]
Golden Spirit Enterprises, Ltd. [GSPT.OB]
GreenCore Technology, Inc. [AQUA.PK]

Integrys Energy Group, Inc. [TEG]

Kronos Advanced Technologies, Inc. [KNOS.PK]

MGE Energy, Inc. [MGEE]
Mirant Corporation [MIR]

NiSource Inc. [NI]
Northeast Utilities [NU]
NorthWestern Corporation [NWE]
NV Energy, Inc. [NVE]

PG&E Corporation [PCG]
PNM Resources, Inc. [PNM]
Public Service Enterprise Group Incorporated [PEG]

SCANA Corporation [SCG]

TurboSonic Technologies, Inc. [TSTA.OB]

UGI Corporation [UGI]
Unitil Corporation [UTL]

Vectren Corporation [VVC]

Westar Energy, Inc. [WR]
Wisconsin Energy Corporation [WEC]