September 3, 2007...9:55 pm
Data shows goofy Y-Gen Loy Yang A APEC protest at Melbourne electricity plant cut back capacity 600 MW, 3 September
The average Australian Victoria region price for the day of the two-coal-conveyor-belt stoppages by goofy Y-Gen, APEC climate-change protesters was not markedly affected by the 5-hour action.
Potential capacity was cut back around 600MW from a possible 1600MW-plus. The gap was filled by the gas or distallate-fuelled wprt units. This may have raised average price from the $30-40 forecast, as the Loy Yang uses brown coal - the lowest-cost fossil-fuel in the NEM. The average Victorian price was $51.17/MWh, up 31 per cent on the $39.14/MWh on Friday, the previous week day, up 89 per cent on the $27.04/MWh of the comparable Monday last year; maximum price $94.42/MWh for the trading interval ended 1900EST. Average demand 6193MW, up 1.9 per cent on Friday, down 1.0 per cent on a year ago; maximum demand 7245MW for the 1900EST interval, up 4.0 per cent on the 6967MW of Friday.
Market report for Monday, 3 September: Average prices up 25-40pc to $48.42-$55.36/MWh range on higher demand: Spike in SA Average prices rose 25-40 per cent on Friday, the previous week day, to a range of $48.42-$55.36/MWh, with South Australia having a spike in one evening trading interval. System-wide maximum demand of 27,816MW was up 1376MW (5.2 per cent), with rises in all regions. Top price of the day was South Australia’s spike to $153.16/MWh in the 30-minute trading interval ended 1900EST. South Australia had the highest average price and Queensland the lowest. Temperature ranges in the NEM capitals were: Sydney 15-21 degrees (14-21 on Sunday); Melbourne 9-15 degrees (8-21); Adelaide 7-17 degrees (5-18), Brisbane 13-25 degrees (14-24) and Hobart 6-9 degrees (9-16).
Qld line outage cancelled: NEMMCO advised at 0726EST on Monday, 3 September that a planned outage of the 811 Bouldercombe to Gladstone 275kV line in Queensland, planned from 0700EST to 1700EST, had been cancelled and constraint set Q–BCGL_811 deleted.
Today in detail
• NSW: Average price $48.53/MWh, up 25 per cent on the $38.90/MWh of Friday, the previous week day, up 97 per cent on the $24.62/MWh of the comparable Monday last year; maximum price $91.09/MWh for the trading interval ended 1900EST. Average demand 8980MW, up 1.7 per cent on Friday, up 1.9 per cent on a year ago; maximum demand 10,491MW for the 1830EST interval, up 5.9 per cent on the 9909MW of Friday.
• Victoria: Average price $51.17/MWh, up 31 per cent on the $39.14/MWh on Friday, the previous week day, up 89 per cent on the $27.04/MWh of the comparable Monday last year; maximum price $94.42/MWh for the trading interval ended 1900EST. Average demand 6193MW, up 1.9 per cent on Friday, down 1.0 per cent on a year ago; maximum demand 7245MW for the 1900EST interval, up 4.0 per cent on the 6967MW of Friday.
• South Australia: Average price $55.36/MWh, up 40 per cent on the $39.49/MWh on Friday, the previous week day, up 87 per cent on the $29.53/MWh of the comparable Monday last year; maximum price $153.16/MWh for the trading interval ended 1900EST. Average demand 1599MW, up 8.1 per cent on Friday, down 4MW on a year ago; maximum demand 2005MW for the 1930EST interval, up 10.5 per cent on the 1814MW of Friday.
• Queensland: Average price $48.42/MWh, up 25 per cent on the $38.75/MWh on Friday, the previous week day, up 118 per cent on the $22.18/MWh of the comparable Monday last year; maximum price $90.47/MWh for the trading interval ended 1900EST. Average demand 5579MW, up 1.3 per cent on Friday, down 4.5 per cent on a year ago; maximum demand 6438MW for the 1900EST interval, up 2.8 per cent on Friday’s 6263MW.
• Tasmania: Average price $54.06/MWh, up 35 per cent on the $40.19/MWh on Friday, the previous week day, up 72 per cent on the $31.45/MWh of the comparable Monday last year; maximum price $87.05/MWh for the trading interval ended 1900EST. Average demand 1343MW, up 9.3 per cent on Friday, up 8.3 per cent on a year ago; maximum demand 1585MW for the 1900EST interval, up 10.7 per cent on the 1432MW of Friday.
Monday non-conformists: NEMMCO declared the following scheduled generating units non-conforming over rebids not received during the trading day of Monday, 3 September:
• The 500MW capacity Victorian generating unit Loy Yang A1 for -71MW from 0540EST to 0555EST and for 38MW from 1215EST to 1220EST.
• The 500MW capacity Victorian generating unit Loy Yang A2 for -71MW from 0540EST to 0555EST.
• The 200MW capacity Tasmanian generating unit Poatina 220 for -26MW from 0635EST to 0655EST.
• The 120MW capacity South Australian generating unit Torrens Island A4 for -13MW from 1850EST to 1905EST.
• The 150MW capacity Victorian Anglesea power station for -13MW from 2215EST to 2250EST.
Generation picture:
In NSW, Eraring 1 came back online in the 0530EST interval. Eraring 3 went off in the 1400EST interval. Liddell 3, Vale Point B5 and Munmorah 4 remained idle all day.
In Victoria, Anglesea 1 returned in the 1700EST interval. Loy Yang A4 and Yallourn 2 were off all day. The two West Kiewa units, the two Bairnsdale units the two Eildon units and Laverton North operated at various times during the day.
In South Australia, Northern 1 came back online in the 2130EST interval. Ladbroke Grove 1 operated in the intervals between 1000-2230EST and Ladbroke Grove 2 between 1000-2200EST. Torrens Island A4 returned in the 0500EST interval. Torrens Island B2 returned in the 1430EST interval. Anglesea, Torrens Island B4, Torrens Island A1, Torrens Island A2 and Torrens Island A3 were offline all day. Snuggery, Angaston 1 and Hallett operated at various times during the day.
In Queensland, Yabulu 2 returned to the grid in the 0530EST interval. Collinsville 2 came back in the 1030EST interval. Collinsville 3 and Collinsville 4 returned in the 0430EST interval. Collinsville 5 came back in the 0500EST interval. Kogan Creek, Tarong 3, Tarong 4, Stanwell 1, Callide B2, Gladstone 6 and Swanbank E were off the grid all day.
In Tasmania, Reece 2 went offline in the 2330EST interval. Gordon returned in the 0530EST interval.. Poatina 220, Reece 1, Reece 2, Poatina 220, Cethana, Tribute, Trevallyn and Devil’s Gate operated at various times during the day. Bell Bay 2, the three Bell Bay Three units, Woolnorth, Lake Echo, Repulse, Paloona, Cluny and Butler’s Gorge were offline all day.
Interconnector flows: The Victoria-South Australia Heywood interconnector averaged 154MW west, up 365.3 per cent on the average 33.10MW west on Friday, the previous week day. Murraylink averaged 3.96MW east, down 80.0 per cent on the average 19.77MW east on Friday. Vic-Snowy imports averaged 285MW, compared to average exports of 23.21MW on Friday. Snowy-NSW exports averaged 115MW, down 57.6 per cent on average exports of 271MW on Friday. QNI averaged 179MW south, down 2.2 per cent on the average 183MW south on Friday. Terranora averaged 31.16MW south, also down 2.2 per cent on the average 31.86MW south on Friday. Basslink averaged 45.30MW south, down 81.9 per cent on the average 250MW south on Friday.
Temperature ranges: The temperature ranges today were: Sydney 15-21 degrees, Melbourne 9-15, Adelaide 7-17, Brisbane 13-25 and Hobart 6-9.
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