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TransCanada 2014 CSR Report — Environment: Image of a seedling TransCanada 2014 CSR Report — Environment: Image of a seedling

2014 CSR | Environment

Environmental Protection Emissions Management Programs and Supporting Research

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Technological innovation is critical to managing the complex and interrelated issues surrounding GHG and air emissions. TransCanada has a multi-decade legacy of investing in research and innovation to manage GHG emissions.

TransCanada's GHG Management Programs and Research Legacy

Methane management
Supersonic nozzles were designed to capture methane from dry gas seals. This technology was transferred to Dresser Rand for marketing worldwide.
Methane biofiltration converts methane to carbon dioxide and was tested for use on pipeline components which are engineered to release methane as a part of normal operations.
Blowdown emissions consist of natural gas, or methane, that is vented to the atmosphere from pipelines, compressors and yard piping to allow for repairs and maintenance. We explored methane capture from compressor station blowdown options for addressing these emissions.
Fugitive emissions are small methane leaks from pipeline equipment, such as compressor seals and valves, as well as engineered releases related to pipeline operations. Fugitive emissions measurement techniques allow TransCanada to measure these emissions from our Canadian pipeline operations.
Energy efficiency
In previous years, TransCanada has partnered with Rolls Royce to conduct turbine performance trials at our Nordegg Compressor Station. These trials indicate the RB211-6761 turbine can deliver a reduction in fuel consumption and GHG emissions, compared with earlier models. TransCanada recently entered into an agreement with Rolls-Royce to test and trial a new version of the RB211 combustor which may lead to even greater efficiency and millions of dollars in fuel savings annually.
Carbon capture
Capturing CO2 from compressor engine exhaust through oxy-combustion which improves the CO2 capture efficiency.
Participation in geological sequestration studies to investigate opportunities to capture and use industrial emissions of carbon dioxide for other purposes.
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Environmentally Sensitive Resources Databases

In order to quickly and effectively protect the environment from a potential emergency response situation, TransCanada maintains a database of environmentally sensitive resources along the Keystone Pipeline right-of-way. TransCanada utilizes this database in our oil spill response preparedness planning, and it is an essential reference tool to assist responders in identifying the most sensitive sites or resources to prioritize for protection and cleanup.

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Minimizing the Impacts of a Spill

In the unlikely event of a significant spill, TransCanada’s emergency response plan is designed to implement the most modern strategies, techniques and equipment to clean up any environment along the pipeline. We work with regulatory agencies to develop our strategies based on conditions such as land or surface water, weather, receptors, geology, soil type, the amount of oil spilled and the type of oil. Ultimately, the responsible environmental regulatory agency would outline the remediation criteria that we need to meet. Typically, we would implement proven mechanical cleanup methods, such as suction equipment (i.e., vac trucks), hand removal, excavation, absorbents and skimmers.

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It’s About Prevention

While we acknowledge that a significant leak on our pipeline is possible, it’s highly unlikely. We do everything we can to prevent leaks from occurring. We continuously monitor our pipeline from our operational control centre. We fly the pipeline route regularly to inspect its condition, and we have a regular in-line inspection schedule which sees a high-resolution inspection tool sent through the pipeline, which is capable of detecting even the smallest potential risks. This allows us to implement maintenance programs to ensure the pipeline stays safe. It’s in all our interests to have safe, secure and reliable energy transportation sources for North America. That’s why we’re investing billions of dollars to construct the safest, most modern and technologically advanced pipelines possible.

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