Week 41

WattClarity estimated the 850 MW Waratah Super Battery contributed to price spikes in Queensland and New South Wales on 9 October 2026 by withdrawing significant load. WattClarity

Atmos Renewables achieved financial close for two utility-scale developments totalling 870 MW of new generation capacity. PV Magazine – Australia

The High Court of Australia ruled in favour of a Hunter Valley community group to block the expansion of the Mount Pleasant coal mine. Energy Source & Distribution

Construction commenced on the Marinus Link and North West Transmission Developments to build new interconnector infrastructure across Tasmania and Victoria. Energy Source & Distribution

Neoen initiated construction on the 346 MW Stage 1 of its Goyder North Wind Farm in South Australia. Energy Source & Distribution

Origin Energy applied for federal environmental approval to expand its Eraring battery project in New South Wales by 500 MW with an eight-hour storage duration. Energy Source & Distribution

The AER published its determination on AusNet's cost pass through application for the January 2026 bushfires on 6 October 2026. AER

AEMO opened consultation on its Guide to Registration Exemptions and Production Unit Classifications discussion paper, closing 13 October 2026. AEMO

AEMO opened consultation on its Security Enablement Procedures draft report, closing 22 October 2026. AEMO

The AER announced it will review and remake the revenue determination under the Waratah Super Battery project to reflect negotiated contractual amendments. AER

The NEM weekly average price increased 6.4 per cent to $67.9/MWh, with Queensland rising 83.6 per cent and New South Wales rising 67.3 per cent. NEM recap 11 Oct

The highest price of the week reached $23,200/MWh in New South Wales at 07:20 on 10 October 2026. AEMO cancelled a forecast LOR1 condition for the region at 14:22. NEM recap 10 Oct

Victoria recorded the most negative prices with 146.7 hours, representing 87.3 per cent of the week. NEM recap 11 Oct

Total FCAS costs fell 6.8 per cent against the prior week to $597,165. NEM recap 11 Oct

The NEM renewable share reached a peak of 78.8 per cent at 12:15 on 9 October 2026. NEM recap 9 Oct

Brent Crude increased 2.4 per cent to US$104.72 a barrel, while Newcastle Coal fell 0.1 per cent to US$148.85/t.

Natural Gas rose 5.9 per cent to US$3.22/mmbtu and TTF Gas increased 8.9 per cent to EUR81.43/MWh.