Waste Heat

Re: Waste Heat Recovery Opportunities for Interstate Pipelines

INGAA (The Interstate Natural Gas Association of America) issued a White Paper dated February 2008 on the subject of Waste Heat Recovery for Interstate Pipelines. Enbridge is participating in this reporting initiative on a voluntary basis.

The Compressor Station turbine engines to be reported are those which fit the INGAA criteria of 1) having a total gas turbine station capacity of at least 15,000 hp and 2) operating at or more than 5,250 hours per year (60 percent load factor) during a twelve month period.

At this time no compressor stations on this system meet these criteria.