Air Emissions Reporting

Welcome to our emissions database


Nova Scotia Power is striving to be an environmental leader, delivering the cost-effective power that customers demand sustainably. A key part of our environmental leadership is publicly sharing our air emission data. You can access the past several years of air emissions from our power plants.

TOTAL SYSTEM EMISSIONS (ALL PLANTS)


System Totals
YearMercury (kg)Sulphur Dioxide (tonnes)Carbon Dioxide Equivalent (tonnes)Nitrogen Oxide (tonnes)
2005105103,77210,648,42232,305
2006162106,6179,745,36828,040
2007157108,54710,145,35525,862
2008163107,4739,782,24921,398
2009140100,8689,375,870 17,075
20108161,9049,250,254 
18,230
20119564,8128,569,18617,414
20129466,2607,572,98215,640
20137367,806 7,822,955  16,998
201454 60,902 7,252,218 16,902
201555 60,608 7,130,732  15,026
20166061,897 7,079,26815,633
20176563,894 6,765,918 15,347
20186362,6076,848,560 14,732
20195950,8806,574,41414,422
202035*51,6216,283,89413,573
202135*53,9446,096,39013,450
202242*50,4155,770,50011,798
202329.9*36,3864,931,1529,405
*Net mercury emissions. 2020 was the first year that NSPI was eligible to use mercury credits obtained through the mercury diversion program. 
System Totals - Emission Intensities
YearMercury (g/GWh)Sulphur Dioxide (g/kWh)Carbon Dioxide Equivalent (g/kWh)Nitrogen Oxide (g/kWh)
20059.08.9915.12.8
200615.410.2927.62.7
200713.29.2855.32.2
200813.89.1831.01.8
200912.48.9829.31.5
20107.15.4808.31.6
20118.45.8765.21.1
20129.66.8781.31.6
20136.96.5747.91.6
20145.25.9705.71.6
2015 5.35.8685.71.4
2016 6.06.1700.11.5
2017 6.46.2660.41.5
20186.05.9654.91.4
20195.64.9630.91.4
20206.05.1629.71.4
20213.94.9602.91.2
20224.94.8557.21.1
20233.63.3450.60.8

Emissions intensity numbers are based on electricity sales, CO2 intensity is based on emissions from generation in Nova Scotia and electricity imports.