Author: admin

  • Painting all Earth’s roofs could drop global temperature

    More sophisticated modelling required for confirmation: A
    zero-dimensional model, however, excludes the atmosphere and,
    crucially, the role of clouds. It would be interesting to see if more
    sophisticated models predict a similar magnitude of cooling.

    New Scientist, 26/11/2005

    Source: Erisk – www.erisk.net

  • Installation rate of solar water heaters continues to rise

    New REC registry named: The ORER’s contract with the Marketplace
    Company to support the REC Registry expires in December 2005. In March
    2005 the office awarded a contract to develop a new REC Registry to
    AusRegistry International. The migration from the old system to the new
    system and the scheduled launch of the new system in late 2005 is being
    pursued as a key strategic objective.

    ORER policy focus: The ORER expects to continue to work with
    industry to enhance their understanding and participation in the MRET,
    The ORER also intends to maintain close links with the DEH as it works
    with the Government to implement any changes arising from the review of
    the operation of the Renewable Energy (Electricity) Act 2000 (the
    Tambling review titled Renewable Opportunities), the energy statement
    Securing Australia’s Energy Future and any other relevant policies
    which may arise.

    Reference: Financial Annual Report, Australian Government, Office of
    the Renewable Energy Regulator. Contact: Manager, Office of the
    Renewable Energy Regulator, GPO Box 621, CANBERRA ACT 2601, ph: (02)
    6274 1416, fax: (02) 6274 1725

    Erisk Net, 13/12/2005

  • ORER accredits 11 power stations in 2004-05, bringing total number to 217

    6-week accreditation process: All power stations accredited in
    this period were assessed within 6 weeks of receipt of all necessary
    information. The ORER aims to achieve the internal performance
    indicator of all applications for accreditation finalised within 6
    weeks of the date of last received information. However, the total
    assessment time may take longer than 6 weeks where additional
    information, to complete the assessment, is required from the applicant.

    Reference: Financial Annual Report, Australian Government, Office of
    the Renewable Energy Regulator. Contact: Manager, Office of the
    Renewable Energy Regulator, GPO Box 621, CANBERRA ACT 2601, ph: (02)
    6274 1416, fax: (02) 6274 1725

    Erisk Net, 13/12/2005

  • Liddell Power Station to integrate solar heating into coal power generation cycle

    Reference: Macquarie Generation Annual Report 2004/2005. Contact:
    Macquarie Generation Corporate Office, 34 Griffiths Road, Lambton NSW
    2299, ph: (02) 4968


    7499, website: http://www.macgen.com.au

    Erisk Net, 14/12/2005

  • Wholesale electricity price leaps in heatwave

    Friday, 30 December: Top prices of
    $2800.09-$4187.69/MWh in multiple spike intervals in NSW, Vic, SA, Qld
    and Snowy as heatwave hits Adelaide and Melbourne

    Top prices of between $2800.09-$4187.69/MWh were recorded in multiple
    spike intervals in NSW, Victoria, South Australia, Queensland and Snowy
    on Friday, 30 December.

    SA has 23 spike intervals: South Australia had spikes in 23 of
    the 48 30-minute trading intervals. NSW, Victoria and Snowy had spikes
    in 11 trading intervals and Queensland in seven.

    Heatwave causes demand surge: The spikes occurred on a day when
    system-wide maximum demand surged by 1650MW (5.9 per cent) to 29,780MW,
    largely due to big increases resulting from the heatwave in South
    Australia and Victoria. Adelaide had a top temperature of 41 degrees
    and Melbourne 39 degrees.

    Another direction to Directlink: There were also continuing
    problems with NSW supply and NEMMCO directed the Queensland-NSW
    Directlink interconnector to be available for dispatch, as well as
    offloading the 132kV feeder 9W2 to maintain power system security.
    NEMMCO also forecast a lack of reserve level one (LOR1) for three hours
    30 minutes in South Australia and for one hour in NSW.

    How prices moved in the regions: The following table shows how prices moved during the spike intervals in the five regions:

    Trading interval NSW Vic SA Qld Snowy
    1000EST – – $135.79/MWh – –
    1030EST – – $125.16/MWh – –
    1100EST – – $274.00/MWh – –
    1130EST – – $299.00/MWh – –
    1200EST – – $276.83/MWh – –
    1230EST $164.05/Mwh $155.49/MWh $315.09/MWh – $149.49/MWh
    1300EST $302.83/MWh $280.97/MWh $397.88/MWh – $273.73/MWh
    1330EST $442.77/MWh $399.97/MWh $513.65/MWh $114.92/MWh $385.76/MWh
    1400EST $822.18/MWh $749.77/MWh $932.35/MWh – $715.35/MWh
    1430EST $1658.22/MWh $1475.92/MWh $1764.45/MWh $153.47/MWh $1422.17/MWh
    1500EST $3936.04/MWh $3448.66/Mwh $4187.19/MWh $299.64/MW $3351.57/MWh
    1530EST $3216.99/MWh $2608.44/MWh $3220.62/MWh – $2624.65/MWh
    1600EST $591.88/MWh $517.11/MWh $677.11/MWh $563.16/MWh $509.38/MWh
    1630EST $3487.60/MWh $3154.97/MWh $3755.37/MWh $2800.09/MWh $3049.60/MWh
    1700EST $317.00/MWh $287.71/MWh $369.20/MWh $302.90/MWh $279.01/MWh
    1730EST $137.70/MWh $124.67/MWh $172.73/Mwh $133.52/MWh $122.38/MWh
    1800EST – – $119.18/MWh – –
    1900EST – – $129.49/MWh – –
    1930EST – – $149.00/MWh – –
    2000EST – – $149.00/MWh – –
    2030EST – – $149.00/MWh – –
    2100EST – – $152.51/MWh – –
    2130EST – – $169.33/MWh – –

    Reference: National Price for NSW, Victoria, South Australia,
    Queensland and Snowy for one day, Friday 30 December, in Price/Demand
    section of Erisk Net – Realtime NEM Data.