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Weekly Dispatch

Week 39

21 to 27 September 2026

The NEM weekly average price increased 69.9 per cent to $63.7/MWh. The Federal Government issued the first offshore transmission licence to the 1.5 GW Marinus Link. A new Capacity Investment Scheme tender opened seeking 1.8 GW of renewable generation in Western Australia.

News

  • The NEM reached a record minimum operational demand of 9072 MW during the 12:55 dispatch interval on 20 September. WattClarity

  • AEMO stated that 9.1 GW of new renewable energy and storage capacity connected to the NEM in the 2026 financial year. Energy-Storage.News

  • The Federal Government issued the first Transmission and Infrastructure Licence under the offshore electricity regime to the 1.5 GW Marinus Link interconnector. Power Technology

  • Valent Energy commenced construction on the 300 MW Blairgowrie battery and Akaysha Energy began commissioning its 250 MW Palmerston battery in Victoria. Energy-Storage.News

  • The Tailem Bend battery in South Australia and the Wooreen battery in Victoria entered the AEMO Market Management System. Energy-Storage.News

  • Lightsource bp referred a hybrid wind, solar and battery facility to the Federal Government for assessment under the EPBC Act. Energy-Storage.News

  • The Federal Government proposed dividing oversight of data centre energy sourcing between the AER and the Clean Energy Regulator. The Energy Co

Policy

  • AEMO opened consultation on changes to the transportation service point register, with submissions closing on 21 October. AEMO

  • The AEMC released a draft rule to enable the rollout of electric vehicle charging infrastructure under a Commonwealth Government program. AEMC

  • AEMO published its submission to the ISP Review outlining its perspective on the evolving planning landscape. AEMO

Market

  • The NEM weekly average price increased 69.9 per cent to $63.7/MWh, with South Australia up 156.3 per cent and Victoria up 80.1 per cent. NEM recap 27 Sep

  • Tasmania recorded the highest price of the week at $490.01/MWh at 10:00 on Saturday. AEMO issued a market intervention notice for a direction in the South Australia region at 14:05. NEM recap 26 Sep

  • South Australia recorded 54.5 hours of negative prices, representing 32.4 per cent of the week. NEM recap 27 Sep

  • Total FCAS costs fell 55.1 per cent to $1.1 million, while the renewable generation share reached a peak of 78.9 per cent. NEM recap 27 Sep

Commodities

  • Brent Crude decreased 1.9 per cent to US$97.44 a barrel, while Newcastle Coal increased 1.3 per cent to US$145.85/t.

  • Natural Gas rose 10.7 per cent to US$3.22/mmbtu, and TTF Gas fell 9.4 per cent to EUR72.07/MWh.

Tenders

  • A new Capacity Investment Scheme tender opened seeking 1.8 GW of renewable generation in Western Australia, closing on 22 October. CIS

  • The Capacity Investment Scheme Tender 10 for 4 GW of dispatchable capacity in the NEM is listed as closed. CIS

Dates to Watch

SEPT 29

AEMO settlements residue methodology submissions close.

OCT 1

Project EnergyConnect Stage 2 go-live.

OCT 14

AEMO power system modelling strategy submissions close.

OCT 21

AEMO transportation service point register submissions close.

AEMO
OCT 22

Capacity Investment Scheme Tender 11 closes.

CIS

Dates extracted from the week's sources. Verify with the linked publications.

AI-generated from 21 articles and 13 regulator updates · gemini-3.1-pro-preview

This dispatch is AI-generated from the week's aggregated headlines, regulator updates and market data. It is not editorial opinion.