transcanada case study: emissions management system · transcanada case study: emissions management...

TransCanada Case Study: Emissions Management System Hasan Imran Senior Advisor, Climate Change October 23, 2007

US EPA Natural Gas STAR 14th Annual Conference, Houston, Texas

Agenda

� How does TransCanada track and manage its emissions?

� Development of an Emissions Management Strategy

� Creation of an Air Emissions Database

� Emissions Management Practices

� Continual Investment in R&D

� Quantifying Business Decisions � The Implementation of effective Practices and Procedures

TransCanada November 1, 2007 2

TransCanada

� Leading North American company in natural gas transmission and power generation

� $25.9 Billion in pipe and power assets ($Cdn at December 31, 2006)

� 2007 named as a member of the Global 100 Most Sustainable Companies in the world

� Skilled, expert, energetic people with strong technical knowledge

� Strong financial position to capture opportunities going into the future


November 1, 2007TransCanada4

Quality assets and proposed projects

• approx. 59,000 km (36,500 miles) of wholly owned pipeline

– transports 15 billion cubic feet/day (Bcf/d) from virtually all major supply basins on the continent

• 2,969 km of proposed oil pipeline, capable of transporting 435,000 barrels per day

• 16 power facilities with 7,700 megawatts of power generation

• two proposed liquefied natural gas facilities

– 1.5 Bcf/d

1990

19

91

1992

19

93

1994

19

95

1996

19

97

1998

19

9 9

2000

20

01

2002

20

03

2004

20

05

2006

GHG emissions from pipeline operations and methane reduction

TransCanada Pipeline Greenhouse Gas Emissions Breakdown

0

2000

4000

6000

8000

10000

12000

14000

16000

kilo

tonn

es C

O2

CARBON DIOXIDE METHANE NITROUS OXIDE INDIRECT PIPELINE EMISSIONS


Total Direct GHG Emissions and Methane Emission Reduction

TransCanada EmissionTransCanada Emission’’s Profiles Profile

Percent Change of GHG Emissions by Type '1990 to 2006'

67%

32%

1%

92%

6% 2%

CO2 CH4 N2O

kt C

O 2E

em

is si

o n s

1990 2006

•Decrease in methane emissions is due to effective leak detection and repair program (LDAR).


EMSEMS -- Emissions Management SystemEmissions Management System

TransCanada Emissions Management System

- CO2 - CO - CH4 - VOC’s- N2O - NOx

- transfer compression - pipeline inspection tools - buttering and hot tappingEnergy Efficiency and - stopple plugsconservation - repair sleeves - hot line lowering

R & D

Vented Emissions (CH4, CO2)

Fugitive Emissions Blowdown Emissions

LDAR (leak detection & repair)

HFS (measurement)

TransCanada November 1, 20077

- incineration

Combustion Emissions

Methane (Fugitive) Emissions Management: Program Successes

Fugitive Emissions in million ft3 CH4

3233

710

0 500

1000 1500 2000 2500 3000 3500

78% Reduction = 2.5 Bcf

Natural Gas $23M

@ $7/GJ Natural Gas $5M @ $7/GJ

1997 2006


2006 CCME Pollution Prevention Award

TransCanada’s Fugitive Emissions Management Program is Recipient of 2006 CCME Award


Air Emissions Database System

Allows TransCanada to:

� Develop confidence in handling complex issues

� Effectively and Efficiently manage incoming emissions data

� Retrieve and Store information easily

� Reduce wait times for data

� Assumptions made can be stated and defended clearly

10 TransCanada November 1, 2007

Emissions Data Management Before

Current State Of GHG & CAC Inventory Tracking

Throughput / fuel used

GHG Inventory (in Excel Work Book)

Cancarb Transportation

Fugitive Emissions

Utility Consumption Forecast

Emissions Savings

Mainline Gas Accounting

Alberta Gas Accounting

BC Gas Accounting

Pipeline System Design

Retriev

eValv

esan

d Meter

Station

s data

Obtain system statistics

Matrix (Mainline)

GSAM (Alberta)

IGMS (BC &

Foothills)

Plant Engineering GeoFind

Avantis

SAP

Extensity

Vehicle/ Fleet

Car Rental Company

From Power Plants

Employee of Environment Group

GeoFind

Retri

eve

Com

pres

sor

Stat

ion

data

Operations Planning, System Design



Volume of Gas transported and Distance of Haul Customer Solutions &

Gas Quality

Employees of Environment

Group & External

Consultants

CAC Inventory


Air Emission Data Management System User Experience

Air Emission Data

Management System Web

Portal

NPRI Air Contaminants

Electronic Reporting

opsEnvironmental

Microsoft Reporting Services

ADMS Database

Maintenance & Configuration Web Pages and Services


Air Emission Data Management System Logical Design and Interfaces


Air Emission Data Management System opsE Pipeline Hierarchy

Global libraries, such as *Reference and *Reports are included in all facility models.

This is a pipeline system.

This is a compressor station.

This is a compressor unit.

This is the NPRI Facility Information for Frenchman River compressor station.


Emissions Management Team

A group of experienced people from many departments of the company that regularly reviews progress and sets targets and goals

� Uses reports to review progress

� Efficient decisions can be made

� Information is transparent and consistent

� Assumptions are clear upfront


Blowdown Emissions Management

Control Methods and Technologies UsedControl Methods and Technologies Used•Scheduling Practices •Operational Adjustments •Transfer (Pull-down) Compressors •Buttered Stubs •Hot Tapping •Hot Line Lowering •Sleeves •Stopples


Supersonic Gas Injector

� Developed for capturing very low pressure vent gases and re-

injection into a high pressure gas stream without the use of

rotating machinery

� Savings

� 4 million ft3/yr of gas savings from one compressor

� Natural gas worth $28,000/yr/unit @$7/GJ

� GHG emissions

� Zero operating cost


Gas-Gas Ejector for Dry Gas Seal Leak Capture

Conceptual Flow Diagram US & Canadian patent filed


Global Pipeline Honorable Mention Award

Received at Rio Pipeline 2007 Conference,

Rio de Janeiro, Brazil


Use of Biofilteration for Methane reduction

� A joint venture of TransCanada & University of Calgary

� Methane gas can be oxidized biologically, with the use of methanotrophic bacteria

� Vented CH4 reduced to CO2: 21 times less global warming potential

� Implemented successfully at three sites

� No operating cost except

monitoring

� Almost 80% oxidation

rate achieved

� Biocell/Biocap/Biofilter

research received 2007

Emerald Award


Use of Incinerator for Blowdowns

• Incineration of blowdown gas instead of venting (after transfer compression)

� At Caron Compressor Station, Moose Jaw, November 2002

212

� Emission savings of 1,100 tCO2e 1315

0

500

1000

1500

tonn

e CO

2E

CO2 equivalent from methane venting

CO2 from methane incineration

GHG Emission Comparison with & without Incineration after Transfer Compression

� Worth $17,000 @$15/t CO2E


End Results - EMS

• Confidence

� The ability to quickly and accurately quantify inputs into important business decisions

� The success of our measurement program can be widely used

� The success of our Management System can be quantified

� Internal interest and buy-in is fostered


transcanada case study: emissions management system · transcanada case study: emissions management...

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