Wholesale electricity market summary 7.11.04

media fact sheet Wholesale electricity market summary for the week ending

07 November 2004

Spot Market Daily Average Reference Point Prices

0.00 2.00 4.00 6.00 8.00 10.00 10 Aug 25 Aug 9 Sep 24 Sep 9 Oct 24 Oct

Price (c/kWh)

Otahuhu Haywards Benmore 31-Oct 1-Nov 2-Nov 3-Nov 4-Nov 5-Nov 6-Nov 7-Nov Sun Mon Tue Wed Thu Fri Sat Sun

Daily Average Reference Price (c/kWh)

Otahuhu 2.85 3.45 4.11 4.19 4.35 3.67 4.40 3.16

Haywards 2.83 3.29 4.01 4.08 4.22 3.52 4.51 3.13

Benmore 2.76 3.14 3.87 3.93 4.06 3.38 3.48 3.03

Haywards 1 month ago 3.94 4.91 3.76 3.86 4.20 4.14 4.14 4.25

Haywards 1 year ago 4.31 4.15 4.05 4.61 4.72 4.75 4.26 3.89

M-co Electricity Price Index (c/kWh)

New Zealand 3.27 3.38 3.48 3.58 3.67 3.64 3.72 3.76

New Zealand 1 month ago 4.07 4.32 4.20 4.20 4.20 4.21 4.28 4.29

New Zealand 1 year ago 4.51 4.61 4.64 4.67 4.50 4.59 4.56 4.53 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

31-Oct 1-Nov 2-Nov 3-Nov 4-Nov 5-Nov 6-Nov 7-Nov

Sun Mon Tue Wed Thu Fri Sat Sun

NZ Demand (GWh)

Total 91.3 102.7 103.8 104.2 104.3 101.8 95.0 89.3

7 days ago 89.2 90.2 103.9 103.8 103.9 105.1 94.6 91.3

7 day change 2.3% 13.8% -0.1% 0.3% 0.3% -3.2% 0.4% -2.2%

Total 1 month ago 93.7 112.9 107.7 106.7 111.5 107.5 97.5 96.6

Total 1 year ago 89.4 102.4 104.3 102.8 102.7 101.5 92.6 90.2

NZ Generation Output (GWh) NI Hydro 20.2 22.6 23.5 23.1 22.8 20.9 19.3 16.6

NI Other 32.9 35.9 37.0 37.2 37.6 37.0 35.8 33.2

SI Hydro 39.1 45.5 44.7 45.2 45.3 45.3 40.9 40.4

Total 92.2 104.0 105.2 105.5 105.8 103.2 96.1 90.2

NI Hydro 1 month ago 17.4 22.6 20.9 21.3 22.1 21.9 22.1 22.1 NI Other 1 month ago 29.8 37.6 38.3 38.9 39.3 35.4 30.6 30.4

SI Hydro 1 month ago 48.2 55.3 50.3 48.2 52.5 52.5 46.8 46.2 NI Hydro 1 year ago 19.7 21.6 22.1 20.6 21.7 19.9 15.9 15.5

NI Other 1 year ago 23.8 30.4 31.9 31.7 28.3 27.8 26.4 25.2

SI Hydro 1 year ago 50.0 54.8 54.4 54.5 52.8 54.2 50.3 49.4

Inter-Island Transmission Transfers (GWh)

South to North 5.3 8.4 7.1 7.3 6.9 6.9 4.9 5.5 North to South 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 South to North 1 month ago 13.0 14.8 10.3 8.3 12.4 13.3 10.8 10.6 South to North 1 year ago 15.1 16.6 15.6 15.9 15.9 17.8 16.1 15.8

Hydrology (GWh)

Storage 2195 2192 2181 2174 2180 2192 2206 2214 % of average 91% 91% 90% 90% 90% 90% 91% 91%

Inflows (GWh/day) 71 62 64 60 67 86 76 75 % of average 85% 74% 77% 72% 80% 102% 91% 89%

Storage % of average 1 month ago 94% 93% 93% 93% 93% 92% 92% 91%

Storage % of average 1 year ago 93% 93% 92% 92% 93% 98% 99% 98%

The M-co Electricity Price Index is a demand weighted seven-day rolling average that smoothes out price volatility distortions. The wholesale electricity price differs from the retail electricity price, which is the price domestic consumers see on their electricity bill. The wholesale price is only one of the factors that influence retail prices.

For more information

Visit www.comitfree.co.nz or contact: Steve Gregan M-co +64 4 473 5240 About M-co M-co is a contracted provider of administration, pricing, clearing and information system services to the Electricity Commission. page 2 of 2 The above information has been prepared for the purposes of media release only. All due care has been taken in the production of this information; however, M-co accepts no responsibility or liability for the accuracy of the information contained in this media release.

ENDS

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