Exhibit 99.1

Towers Watson Energy Services Executive Survey participants:

AEI Services	Exelon	Salt River Project
AES	FirstEnergy	SCANA
Allete	GenOn Energy	Sempra Energy
Alliant Energy	Iberdrola Renewables	Southern Company Services
Ameren	Idaho Power	Southern Union Company
American Electric Power	Integrys Energy Group	South Jersey Gas
ATC Management	IPR – GDF SUEZ North America	Spectra Energy
Atmos Energy	Kinder Morgan	STP Nuclear Operating
Avista	LG&E and KU Energy	Targa Resources
Babcock Power	Lower Colorado River Authority	TECO Energy
Babcock & Wilcox	MDU Resources	Tennessee Valley Authority
BG US Services	MGE Energy	TransCanada
Black Hills Power and Light	MidAmerican Energy	UGI
Capital Power Corporation	New York Power Authority	UIL Holdings
CenterPoint Energy	Nextera Energy	UniSource Energy
CH Energy Group	Northeast Utilities	Untill
Cheniere Energy	Northwestern Energy	URENCO USA
CMS Energy	NRG Energy	Vectren
Colorado Springs Utilities	NSTAR	Westar Energy
Consolidated Edison	NVEnergy	Williams Companies
Crosstex Energy	NW Natural	Wisconsin Energy
Dominion Resources	OGE Energy	Wolf Creek Nuclear
DTE Energy	Oglethorpe Power	Xcel Energy
Duke Energy	Ohio Valley Electric
Dynegy	Omaha Public Power
Edison International	Pacific Gas & Electric
ElectriCities of North Carolina	Pepco Holdings
El Paso Corporation	Pinnacle West Capital
El Paso Electric	PNM Resources
Enbridge Energy	Portland General Electric
Energen	PPL
Energy Future Holdings	Primary Energy Recycling
Energy Northwest	Progress Energy
Entergy	Proliance Holdings
Enterprise Products Partners	Public Service Enterprise Group
EQT Corporation	Pugent Energy