21.03.2013 Views

2001 Triple Bottom Line Report - BC Hydro

2001 Triple Bottom Line Report - BC Hydro

2001 Triple Bottom Line Report - BC Hydro

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

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 />

T R I P L E B O T T O M L I N E A P P E N D I C E S | 8 7

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!