Month Year tWh Demand tWh SND
Oct 2010 97.92 92.72
Sep 2010 71.71 76.42
Aug 2010 72.90 72.52
Jul 2010 74.94 73.74
Jun 2010 82.12 77.24
May 2010 97.12 87.92
Apr 2010 99.43 96.64
Mar 2010 117.29 114.71
Feb 2010 116.75 112.91
Jan 2010 136.84 127.83
Dec 2009 120.96 122.37
Nov 2009 98.72 107.27
Oct 2009 83.38 91.63
Sep 2009 68.43 74.51
Aug 2009 58.33 69.96
Jul 2009 61.36 71.37
Jun 2009 69.15 74.55
May 2009 79.77 84.59
Apr 2009 89.79 93.87
Mar 2009 112.16 103.37
Feb 2009 110.64 107.44
Jan 2009 125.52 130.17
Dec 2008 120.47 120.81
Nov 2008 105.45 105.73
Oct 2008 99.27 88.50
Sep 2008 68.35 71.61
Aug 2008 67.65 67.25
Jul 2008 72.87 69.31
Jun 2008 72.69 72.54
May 2008 82.48 83.06
Apr 2008 98.65 92.92
Mar 2008 115.33 109.72
Feb 2008 113.14 113.19
Jan 2008 119.55 124.34
Dec 2007 117.39 118.29
Nov 2007 99.10 104.11
Oct 2007 90.42 85.81
Sep 2007 65.85 67.88
Aug 2007 63.62 64.88
Jul 2007 68.44 65.15
Jun 2007 65.14 69.04
May 2007 84.17 79.96
Apr 2007 92.32 89.26
Mar 2007 113.65 109.53
Feb 2007 108.43 108.39
Jan 2007 113.99 123.47
Dec 2006 109.82 130.15
Nov 2006 98.20 112.75
Oct 2006 86.13 93.41
Sep 2006 72.49 69.23
Aug 2006 64.72 69.54
Jul 2006 64.09 69.34
Jun 2006 63.32 74.74
May 2006 78.05 91.13
Apr 2006 90.81 102.28
Mar 2006 112.21 124.63
Feb 2006 109.99 123.04
Jan 2006 117.29 137.53
Dec 2005 113.70 127.19
Nov 2005 103.14 110.00
Oct 2005 79.46 91.28
Sep 2005 72.80 74.18
Aug 2005 59.03 69.33
Jul 2005 65.05 69.51
Jun 2005 69.88 75.18
May 2005 89.03 81.20
Apr 2005 100.18 94.29
Mar 2005 112.11 114.70
Feb 2005 112.18 115.09
Jan 2005 118.45 130.24
Dec 2004 116.08 127.44
Nov 2004 103.63 109.79
Oct 2004 91.23 89.19
Sep 2004 66.68 69.15
Aug 2004 67.16 61.25
Jul 2004 81.33 61.07
Jun 2004 77.67 66.82
May 2004 87.46 83.18
Apr 2004 98.61 98.53
Mar 2004 115.97 122.02
Feb 2004 114.38 124.85
Jan 2004 122.03 133.95
Dec 2003 120.66 125.32
Nov 2003 104.72 112.47
Oct 2003 101.38 99.86
Sep 2003 71.63 83.04
Aug 2003 74.74 75.25
Jul 2003 75.76 74.75
Jun 2003 76.41 77.86
May 2003 92.00 91.60
Apr 2003 101.00 101.00
Mar 2003 127.00 120.00
Feb 2003 118.00 119.00
Jan 2003 126.25 133.68
Dec 2002 120.49 124.77
Nov 2002 104.87 110.23
Oct 2002 101.58 95.51
Sep 2002 74.85 76.00
Aug 2002 69.19 67.00
Jul 2002 67.16 63.86
Jun 2002 77.84 69.64
May 2002 90.08 87.98
Apr 2002 98.79 99.69
Mar 2002 110.42 120.36
Feb 2002 102.37 121.98
Jan 2002 118.57 133.60
Dec 2001 122.09 125.73
Nov 2001 106.13 110.54
Oct 2001 84.19 92.69
Sep 2001 75.36 72.74
Aug 2001 68.03 67.44
Jul 2001 73.30 67.81
Jun 2001 74.03 73.78
May 2001 83.61 77.05
Apr 2001 104.97 92.88
Mar 2001 118.16 116.36
Feb 2001 107.46 116.47
Jan 2001 126.61 131.74
Dec 2000 113.34 126.33
Nov 2000 104.69 112.52
Oct 2000 90.26 92.39
Sep 2000 74.61 73.65
Aug 2000 67.92 66.96
Jul 2000 66.42 65.47
Jun 2000 70.61 57.70
May 2000 81.25 76.07
Apr 2000 106.03 93.12
Mar 2000 111.24 118.89
Feb 2000 112.41 122.05
Jan 2000 113.34 126.33
Dec 1999 122.48 121.18
Nov 1999 103.81 103.24
Oct 1999 83.85 82.78
Sep 1999 61.23 61.64
Aug 1999 56.66 52.19
Jul 1999 58.45 51.60
Jun 1999 57.45 56.74
May 1999 64.15 71.73
Apr 1999 83.07 88.80
Mar 1999 99.68 112.32

Glossary
SND - Seasonal Normal Demand
tWh - tera Watt hours


If you require further information about the Summary of Operations page please email john.mcnamara@uk.ngrid.com