Canadian energy distribution, transmission and generation company Enbridge has released its 2013 corporate social responsibility report.
GHGs
The company cut direct GHG emissions from its Canadian operations by 21 percent below 1990 levels by 2011.
For Enbridge’s liquid pipelines business, scope 1 emissions fell from 2011 to 2012, and scope 2 emissions rose (see chart - the report also provides data back to 2009).
For its gas transportation business, scope 1 emissions rose from 2011 to 2012, and scope 2 emissions fell.
For its Enbridge Gas Distribution business unit in Canada (but excluding EGD's storage operations), the company is targeting a 5 percent reduction from 2011 levels by 2015, relative to its number of customers.
In 2012, the business completed a long-term project to replace about 1,800 kilometres of aging cast iron and bare steel pipe with coated steel and plastic pipe, which cut CO2e by about 122,000 metric tons.
Enbridge says it has already secured the “easy” reductions, and the next round will be more difficult to achieve. The company describes its GHG reduction challenges as: increased demand for energy; operational growth; and diversity of operations.
Enbridge says it will set future targets for reducing direct emissions from its assets once it establishes a more robust baseline.
Renewables
Since 2002, Enbridge has invested over $3 billion in wind, solar, geothermal, waste heat recovery, and other alternative energy technology projects, with a total capacity of more than 1,700 MW.
It plans to double its renewable and alternative energy production capacity from 2011 to 2016.
Through its “Neutral Footprint” commitments, the company has pledged to generate a kilowatt hour of renewable energy for every kilowatt hour of additional energy its operations consume.
Fleet
About 95 per cent of the EGD unit’s light-duty fleet vehicles, as well as six of its heavy-duty dump trucks, run on natural gas, cutting emissions by 460 metric tons of CO2e per year.
Releases
In 2012, company-wide, Enbridge had 85 reportable commodity (liquid) spills totaling about 10,224 bbls, of which 68 had a volume of 10 bbls or less and two were significant. (Enbridge defines “significant spill” as any commodity off-site release that is greater than 100 bbls or entails clean-up costs of $1 million or more.)
It had one reportable gas release totaling 4.25 million standard cubic feet.
Enbridge's company-wide capital investment in systems integrity and maintenance was about $2.0 billion, and it expected the figure to reach about $2.4 billion in 2013.
In July 2012, the US Pipeline and Hazardous Materials Safety Administration issued a $3.7 million civil penalty against Enbridge related to the company’s Line 6B, which spilled more than 20,000 barrels of heavy crude into the Kalamazoo River near Marshall, Mich., in 2010.
Materials
Of the roughly 200,000 metric tons of pipe that Enbridge bought from its primary supplier, Evraz Inc. NA, in 2012, 189,000 metric tons came from recycled steel.
EGD bought about 982 metric tons of polyethylene pipe in 2012, and 51 per cent of total pipe (above 2-inch diameter Nominal Pipe Size) included up to 30 per cent recycled material.
Water
All of the Gas Transportation’s business processes that use water are closed loop systems, resulting in minimal water loss, the company says.
At this time, GT does not track its total water use.
Data and reporting
The report provides details on performance in 2012, and significant developments in the first half of 2013.
It was prepared using the GRI G3.1 reporting guidelines.
The company is currently testing its Emissions Data Management System for use with GHG emissions.
It expects Phase 2, which will manage criteria air contaminant emissions data, to be operational by the third quarter of 2013.
Takeaway:The report provides useful data but could do much more, starting with a comprehensive total of GHG emissions and analysis of change over time.