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North Baja Pipeline Presentation to the Arizona Corporation Commission October 30, 2007

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North Baja Pipeline

Presentation to the Arizona Corporation Commission

October 30, 2007

October 31, 2007TransCanada2

North Baja Pipeline – Regional Map

Baja California

Arizona

Sonora

EhrenbergSoCal Gas Co.

El Paso Gas Co.

SDG&E

All-American Pipeline

Mexicali

Tijuana

Gasoducto Bajanorte(140 miles)

North BajaPipeline(80 miles)

TGN

California

Yuma

U.S./Mexico Border

Rosarito

North Baja PipelineGasoducto BajanorteTGN

Ensenada

Energia Costa Azul LNG

Sempra/Shell

Otay Mesa

San Diego

Ogilby

El Centro

October 31, 2007TransCanada3

Background

• North Baja Pipeline (NBP) was originally placed into service in 2002

• Shortly after that, interest in Baja LNG development started with 5 separate terminal proposals

• The Sempra Energia Costa Azul LNG Terminal, located north of Ensenada, is under construction and will be completed in early 2008. An expansion is planned

• NBP began permitting its pipeline expansion project early 2006

October 31, 2007TransCanada4

Supply and Demand Forecast (Bcf/d)

New sources of supply required to meet demand growth

2004 2010 2015 2004 2010 2015

WCSBWCSB

RockiesRockies

SanSanJuanJuan

Permian

MidMid--ContinentContinent

Sable

59

LNGImports

North2004 2010 2015 2004 2010 2015

2004 2010 2015 2004 2010 2015 2004 2010 2015

2004 2010 2015 2004 2010 2015

2004 2010 2015

2004 2010 2015

2004 2010 2015 2004 2010 2015

2004 2010 2015

Mexico2004 2010 2015

(Includes Mexico)

GulfGulfCoastCoast

16.7

0 0 1.2

7.1

3.8

4.8 4.8 4.5

6.6

3.6

1.8 9.7

15.8

24.923.0 21.8

4.2 4.7

17.3 16.4

9.2 10.7

3.6 3.4

6.2 5.7

0.4 0.5 0.5

October 31, 2007TransCanada5

NBP Expansion Project

NBP Expansion Phase 1• FERC Approval Oct 2007• System will become bi-directional• Notice to Proceed issued• In-service early 2008

NBP Expansion Phase 2• FERC approval October 2007• Allows expansion of up to 2.7 Bcf

October 31, 2007TransCanada6

Arrowhead Extension and

Blythe Interconnect M/S

Ehrenberg C/S

Ogilby Meter Station

NPS 30 / 36 North Baja Pipeline

NPS 36 / 42 NBP Loop Line

Yuma Lateral

October 31, 2007TransCanada7

Impact of LNG Terminals on Gas Flows in Southern California & Baja CaliforniaImpact of LNG Terminals on Gas Flows in the Southwest & Baja California

Blythe

SoCal Gas

San Diego Gas & Electric

El Paso Pipeline

North Baja

Pipeline

TGN

Sempra I and II

Gasoducto Bajanorte

= LNG Facility Under Construction= Proposed LNG Facility= Gas Flow Direction Before LNG= Gas Flow Direction After LNG

October 31, 2007TransCanada8

How the Expanded NBP Pipeline will help the Southwest

• It will provide a new source of natural gas to the region to replace traditional sources that are in decline

• By competing with traditional sources, it will provide a moderating impact on the cost of gas

• It will improve reliability of supply in the region by providing an alternative pipeline path to bring a new supply into the region

• It will provide additional property tax revenue to the counties where the facilities are located.

October 31, 2007TransCanada9

NBP – Yuma Lateral Project

Yuma Lateral• FERC Approval permitting process is ongoing• 7 mile 12-inch lateral to an APS power plant in Yuma• Capacity 80 MMcf/d• In-service 2008

October 31, 2007TransCanada10

Yuma Lateral - Map

October 31, 2007TransCanada11

Future NBP Expansion Potential

ARIZONA

BAJA CALIFORNIA

CALIFORNIA

Transwestern PipelineTranswestern Pipeline

El Paso El Paso PipelinePipeline

Gasoducto Bajanorte

SoCal Gas Co.SoCal Gas Co.

SDG&ESDG&E

North Baja

PG&EPG&E

MojaveMojavePipelinePipeline

YumaOgilby

TopockCadiz

Ehrenberg

TGN

1-Ehrenberg to Topock

2 -Yuma to Phoenix