Tufts Cove Generating Station Community Newsletter Spring 2013 FROM THE PLANT MANAGER HISTORY Welcome and thank you for reading the first edition of the Tufts Cove Generating Station’s community newsletter. We hope to issue new editions a few times a year that will keep you up to date on what’s happening here at the plant and provide updates on our work with the newly formed Community Liaison Committee. 1965 - Plant opens with one generating unit capable of burning oil or coal to make electricity. Regards, Tony Stevens Plant Manager, Tufts Cove NOISE UPDATE Noise issues experienced by some community members early last fall have been largely resolved. For a period in September, residents may have heard a series of loud bangs on and off due to a ruptured water line on one of our generating units, and a sustained loud rumbling noise associated with starting up another unit to generate electricity. As outlined in our recent letter to neighbours, we’re pleased to have completed necessary repairs to the water main that fixed the first noise issue, and have recently installed a muffler system that will continue to significantly reduce noise associated with starting up one of our generators on an ongoing basis. Still, we recognize these noises were louder than what could be reasonably expected in the community and apologize for any inconvenience they may have caused. Tufts Cove in the mid-1960s 1972 - Unit 1 is converted to burn only oil as a second unit is added in 1972. Unit 3, which also burns oil, is added in 1976. 1999-2000 - Units 1-3 are converted to also burn natural gas, greatly reducing emissions. 2003-2004 - Two natural gas combustion turbines, known as Units 4 and 5, are added to the property outside the main building. 2011-2012 - A sixth Unit is added capable of producing power by recycling waste heat from Units 4 and 5. 2012 - Tufts Cove supplies 21% of Nova Scotia’s electricity, all from natural gas. FUN FACT RECYCLING HEAT Many neighbours would have noticed construction on the south side of the property in recent years. The Tufts Cove Waste Heat Recovery project resulted in an additional 50 megawatts of electricity to the plant, enough to power up to 35,000 homes. For several years following its construction in 1965, the plant featured a large sign of “Reddy Kilowatt,” a popular mascot among electricity utilities, together with lettering promoting the former Nova Scotia Light and Power Company, Limited. With it’s large size and flashing “NSLP” letters, the sign was at the time one of the most widely recognizable features of Halifax Harbour and clearly visible from the MacDonald Bridge. The sign was removed to make way for an expansion of the plant. By the time it would have been reinstalled in 1972, the mascot was being used less often and the private Nova Scotia Light and Power Company had been amalgamated with the publicly owned Nova Scotia Power Commission to former the Nova Scotia Power Company. CONTACT US (902) 428-6877 tuftscoveclc@nspower.ca www.nspower.ca/tuftscoveclc The new equipment captures waste heat from the exhaust streams of the two natural gas combustion turbines, also on the south side of the property, and uses it to power a new steam turbine and generator set. This allows us to generate 25 megawatts of electricity without any fuel or emissions. A second 25 megawatts can be generated by adding natural gas directly into the waste heat stream from the turbines to increase energy output. It’s a cleaner, more efficient way to use fossil fuels that acts as a source of efficient, low-carbon electricity in Nova Scotia. WHAT’S UPCOMING? Here are some things upcoming at the plant: Noise level assessment We plan to soon conduct a noise level assessment throughout nearby sites in the neighbourhood. This work will provide a 3D sound model of the Tufts Cove property and immediate neighbourhood and help us identify potential noise concerns so we can take the right measures to prevent or reduce any inconveniences to our neighbours Open House Later this year we’ll be conducting an open house event at Tufts Cove. Neighbours and others will be able to tour the plant and learn about its operations from NS Power staff. Stay tuned for more information!