2001 Triple Bottom Line Report - BC Hydro
2001 Triple Bottom Line Report - BC Hydro
2001 Triple Bottom Line Report - BC Hydro
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28. LOCAL AIR QUALITY INDICATORS<br />
EMISSIONS OF SULFUR DIOXIDE 1997 1998 1998 2000<br />
Total Gross Annual SO 2 Emissions (tonnes) 40 75 50 61<br />
Mass Gross SO 2 Emitted Per Unit of Net Fossil Generation (g/kW . h) 0.028 0.028 0.028 0.02<br />
Mass Gross SO 2 Emitted Per Unit of Net System Generation (g/kW . h) 0.0008 0.0015 0.0009 0.001<br />
EMISSIONS OF SULFUR DIOXIDE FROM CANADIAN UTILITIES 1997 1998 1999 2000<br />
Total Gross Annual SO 2 Emissions (tonnes) 501 841.00 628 128.00 598 133.00 621 791.00<br />
Mass Gross SO 2 Emitted Per Unit of Net Fossil Generation (g/kW . h) 5.22 5.14 5.06 4.86<br />
Mass Gross SO 2 Emitted Per Unit of Net System Generation (g/kW . h) 1.05 1.3 1.21 1.21<br />
<strong>BC</strong> <strong>Hydro</strong> emits small quantities of SO 2 compared to the Canadian average because our primary fossil fuel source for thermal<br />
generation is natural gas, which is low in SO 2 emissions.<br />
EMISSIONS OF NO X 1997 1998 1999 2000<br />
Total Gross Annual NO x Emissions (tonnes) 638 1213 801 1048<br />
Mass Gross NO x Emitted Per Unit of Net Fossil Generation (g/kW . h) 0.45 0.45 0.45 0.34<br />
Mass Gross NO x Emitted Per Unit of Net System Generation (g/kW . h) 0.013 0.024 0.016 0.02<br />
EMISSIONS OF NO X FROM CANADIAN UTILITIES 1997 1998 1999 2000<br />
Total Gross Annual NO x Emissions (tonnes) 203 047.00 246 935.00 234 324.00 232 273.00<br />
Mass Gross NO x Emitted Per Unit of Net Fossil Generation (g/kW . h) 2.11 2.02 1.98 1.82<br />
Mass Gross NO x Emitted Per Unit of Net System Generation (g/kW . h) 0.42 0.51 0.48 0.45<br />
Since 1993 we have voluntarily upgraded and modernized the equipment at Burrard Generating Station, our natural gas-fired facility<br />
near Vancouver and <strong>BC</strong> <strong>Hydro</strong>'s principal source of thermal power. In May 2000 we completed installation of selective catalytic<br />
reduction (SCR) technology installation on all six power generating units. This marked the first time in Canada that SCR technology<br />
was installed on utility boilers. The project achieved a 90 per cent reduction in emissions of nitrogen oxide (NO x ) from the plant.<br />
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