Wholesale electricity market summary - 9 January

Wholesale electricity market summary for the week ending 09 January 2005

12-Dec 13-Dec 14-Dec 15-Dec 16-Dec 17-Dec 18-Dec 19-Dec Sun Mon Tue Wed Thu Fri Sat Sun

Daily Average Reference Price (c/kWh)

Otahuhu 3.98 4.34 4.59 4.79 4.69 4.48 5.33 4.71

Haywards 3.68 3.94 4.24 4.44 4.39 4.20 5.07 4.38

Benmore 3.52 3.72 4.03 4.19 4.17 4.03 4.86 4.18

Haywards 1 month ago 4.07 3.84 3.62 3.47 3.85 4.24 3.87 2.58

Haywards 1 year ago 5.07 4.14 4.65 4.61 5.34 4.10 5.00 4.34

M-co Electricity Price Index (c/kWh)

New Zealand 3.60 3.42 3.56 3.77 3.97 4.06 4.59 4.68

New Zealand 1 month ago 4.15 4.19 4.06 3.94 3.88 3.88 3.89 3.71

New Zealand 1 year ago 5.07 4.96 4.79 4.69 4.73 4.55 4.68 4.70

Spot Market Daily Average Reference Point Prices 0.00 2.00 4.00 6.00 8.00 10.00 12 Oct 27 Oct 11 Nov 26 Nov 11 Dec 26 Dec Price (c/kWh)

Otahuhu Haywards Benmore 2-Jan 3-Jan 4-Jan 5-Jan 6-Jan 7-Jan 8-Jan 9-Jan Sun Mon Tue Wed Thu Fri Sat Sun

Daily Average Reference Price (c/kWh)

Otahuhu 0.25 0.26 0.83 0.81 1.75 1.42 1.74 1.82

Haywards 0.22 0.22 0.67 0.68 1.47 1.15 1.48 1.56

Benmore 0.20 0.20 0.63 0.62 1.36 1.06 1.37 1.37

Haywards 1 month ago 7.15 5.91 3.24 3.04 2.96 3.41 3.19 3.68

Haywards 1 year ago 4.66 7.91 9.16 8.44 6.69 21.34 6.41 9.02

M-co Electricity Price Index (c/kWh)

New Zealand 2.46 1.97 1.56 1.56 1.56 1.56 1.56 1.56

New Zealand 1 month ago 4.17 4.50 4.54 4.46 4.34 4.09 3.82 3.60

New Zealand 1 year ago 4.00 4.65 5.64 6.62 7.26 9.07 8.68 8.83

The Marketplace Company Limited Level 2, Wool House, 10 Brandon Street, PO Box 5422 Wellington, New Zealand

Telephone +64-4-473 5240 Facsimile +64-4-473 5247

Home Page http://www.m-co.co.nz Email info@m-co.co.nz page 1 of 2 2-Jan 3-Jan 4-Jan 5-Jan 6-Jan 7-Jan 8-Jan 9-Jan Sun Mon Tue Wed Thu Fri Sat Sun

NZ Demand (GWh)

Total 87.6 87.6 87.6 87.6 87.6 87.6 87.6 87.6

7 days ago 77.2 80.1 82.7 87.4 89.9 87.6 87.6 87.6 7 day change 13.5% 9.3% 5.9% 0.2% -2.6% 0.0% 0.0% 0.0%

Total 1 month ago 93.6 102.2 101.0 101.2 103.4 103.9 93.5 89.5

Total 1 year ago 81.5 81.5 81.5 81.5 81.5 81.5 81.5 81.5

NZ Generation Output (GWh)

NI Hydro 19.8 23.5 25.7 27.0 28.4 30.2 29.2 26.6

NI Other 17.2 16.1 15.3 18.3 19.3 19.0 16.1 15.1

SI Hydro 40.9 42.4 41.9 45.8 46.3 45.4 43.0 43.8

Total 77.9 82.0 83.0 91.1 94.0 94.6 88.2 85.5

NI Hydro 1 month ago 22.3 22.2 17.2 15.2 15.6 16.5 13.4 13.8

NI Other 1 month ago 36.6 42.6 35.5 35.0 35.4 35.8 33.6 33.1

SI Hydro 1 month ago 35.8 39.0 50.6 53.6 55.1 54.2 48.4 44.0

NI Hydro 1 year ago 23.2 21.6 17.6 16.9 19.4 24.5 20.2 18.3

NI Other 1 year ago 20.9 28.2 33.5 37.0 35.4 37.6 36.0 35.9

SI Hydro 1 year ago 43.6 48.2 49.3 47.6 47.9 38.0 35.8 35.1

Inter-Island Transmission Transfers (GWh)

South to North 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0

North to South 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 South to North 1 month ago 0.0 1.3 12.3 15.8 16.1 14.8 12.6 8.5

South to North 1 year ago 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5

Hydrology (GWh)

Storage 3041 3067 3093 3114 3136 3145 3178 3192

% of average 105% 105% 106% 106% 107% 107% 108% 108% Inflows (GWh/day) 117 97 95 100 89 86 88 84 % of average 138% 114% 112% 119% 105% 102% 105% 100%

Storage % of average 1 month ago 103% 103% 102% 102% 102% 100% 98% 97%

Storage % of average 1 year ago 102% 102% 103% 103% 103% 113% 116% 117% T

ENDS

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