EE4721-TCPL-PR-PN-0257 Energy East Protected UNCONTROLLED IF PRINTED. Energy East Conversion Overview

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1 Energy East Conversion Overview

2 What is Energy East? The Energy East Pipeline is a 4,600-kilometre project that will carry approximately 1.1 million barrels of crude oil per day from Alberta and Saskatchewan to refineries in Eastern Canada. 2

3 Energy East - Key Components The Energy East Project consists of three major components: Conversion New Pipeline FaciliJes 3000 km conversion of exis1ng 42-inch Construc1on of 1600 km of new 42- inch pipeline Construc1on of required tanks, pump sta1ons, and marine terminal facili1es 3

4 We ve Done This Before Converting a Natural Gas Pipeline TransCanada has safely and successfully converted natural gas pipelines in the past. The most recent example is when we converted a sec1on of the Canadian Mainline for the Keystone Pipeline, which has safely delivered more than 850 million barrels of oil to the U.S. since it began opera1ng in July

5 Conversion Steps Conversion Re-purposing of exis1ng natural gas pipeline for crude oil service Key Considerations 1 -Integrity Condi1oning of the pipeline for new liquid opera1ons 2- Isolation 3 -New Installations Removal of exis1ng connec1ons to the gas pipeline New installa1ons required for oil movement (valves & pump sta1ons vs. compressors) 5

6 Step 1 - Integrity Integrity Maintenance and integrity programs use state of the art technology to ensure the ongoing safety and integrity of the pipeline system We safely operate more than 68,500 km of pipeline using industry leading integrity management programs Our programs focus on preven1ng incidents from occurring We conduct periodic internal cleaning and smart-pig inspec1on Our integrity department employs over 350 employees and contractors TransCanada has spent an average of $900 million per year over the last three years on pipeline integrity and preventa1ve maintenance programs 6

7 Step 1 - Integrity Continued The Integrity Program will involve phases that will: inspect, assess and repair the pipeline, as required Before Construction Perform inline inspec1ons with technologies to assess: metal loss cracks & coa1ng mechanical damage & strain During Construction Infield program target areas of interest iden1fied by inline inspec1ons Employ necessary remedia1on as required (i.e.: Grinding, sleeves, cutouts and recoats) After Construction Inspec1on of stress corrosion cracking in suscep1ble sec1ons Mi1gate any iden1fied features 7

8 Step 2 - Isolation Key steps to disconnect and re-connect Purge the natural gas using a portable transfer compressor from the gas line Isolate the pipeline from adjacent gas pipelines Isolate branch connec1ons between gas lines Disconnect / Reconnect Electrical connec1ons Fuel gas connec1ons Reconnect gas facili1es to ensure con1nuity of gas transporta1on 8

9 Step 3 - New Installations New Installations required for liquids operations Replace all mainline valves along pipeline with new shut-off valves for liquid service Install pump sta1ons and new shut off valves, which are required to pump the oil Install Launchers & receivers (with isola1on valves) to enable the new line to be monitored and assessed internally 9

10 Valves Valves placed for maintenance, protection and isolation Sensi1ve areas include: Populated areas Potable water sources Major water crossings Water wells Ecologically sensi1ve areas Municipal water intakes 10

11 Designed with Safety in Mind Step 1 - Preven1on Safety built into the Design right from the start State of the Art integrity programs Step 2 Monitoring & Detec1on Energy East pipeline will incorporate Industry leading leak detec1on system monitored 24x7 Incorpora1ng overlapping technologies to detect any leak on the pipeline Step 3 - Reac1on Emergency Response Plans (ERP) in place ERPs developed in accordance with federal regula1ons (NEB OPR) 11

12 Prevention Activities - Designing with Safety in Mind Multiple overlapping and redundant systems TransCanada has a formal Quality Control and Assurance program for design, construc1on, and opera1ons of our pipelines Designed to meet all OPR and CSA Z662 requirements with designs reviewed and validated by the Na1onal Energy Board (NEB) State of the Art integrity programs monitoring pipeline condi1on and monitoring from incep1on to re1rement Sophis1cated an1-corrosion protec1on / SCADA protec1on Valves strategically placed to protect environmentally sensi1ve areas and minimize poten1al for spills Public awareness programs 12

13 Monitoring and Detection - Delivering Energy Safely Monitoring & Detection The pipeline will be monitored on a con1nuous basis by trained professionals located in our system control center Sophis1cated monitoring system with thousands of data points Valve sites are remotely monitored and can be closed by control center Control center dispatches field staff to respond to alarms or emergency calls Direct observa1on - Aerial Patrols will be conducted on a three week frequency for increased protec1on Control Center in Calgary, Alberta 13

14 Reaction - The Importance of Emergency Response Prepared to Respond TransCanada s Emergency Response Plan (ERP) will be developed in accordance with federal regula1ons (NEB OPR) Developed in consulta1on with local emergency service agencies (i.e. fire departments, emergency managers, etc.) Trained responders are on-call 24/7 and include TransCanada personnel and contractors Specialized oil spill equipment will be procured and stored strategically along pipeline system TransCanada takes full responsibility for emergency response and clean-up In 2014, TransCanada conducted over 120 emergency drills and exercises 14

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