AEMO flags 2 MW bulk load disconnection as NEM reserve margins tighten
A small but symbolic load shedding notice lands as AEMO data shows NEM prices at four-year lows and renewables buildout accelerating.
AEMO has been advised of the disconnection of approximately 2 MW of bulk electrical load on the National Electricity Market, a notice that lands during a period of tight reserve conditions across the grid. The advisory, published via the market operator's standard notification channel, comes after a stretch of low wind yield NEM-wide that ran from Sunday (2026-06-21) into Monday (2026-06-22).3
The 2 MW figure is tiny in the context of a system that routinely handles peak demand in excess of 30,000 MW. But the timing is what draws attention. AEMO had just published a follow-on notice on Monday (2026-06-22) clarifying that a Lack of Reserve Level 3 condition was NOT declared in the South Australia region, despite earlier confusion around a LOR2 notice.4
That sequence of events — low wind, reserve notices, clarifications, and now a confirmed load disconnection — underscores how finely balanced the NEM remains even as wholesale prices tell a different story. The disconnection is the kind of operational detail that traders watch for signs that system stress is translating into physical curtailment.3
The backdrop complicates the read on market fundamentals. Wholesale spot prices across the NEM averaged $74/MWh in July (2026-07), down $66/MWh, or 47%, from Q2 2025 levels. South Australia was the only region to experience any material price volatility, according to the July 2026 market update.5
East coast gas prices fell to their lowest level since Q2 2021, averaging $9.08 per gigajoule, driven by lower domestic demand. That softness in both electricity and gas suggests the demand side of the equation is doing heavy lifting, even as supply-side tightness shows up in reserve notices.5
Queensland drove much of the supply-side shift, with average wind generation rising 80% to a new all-time high of 842 MW. Grid-scale battery storage increasingly shifted energy across time periods and influenced price outcomes, the July update noted. The generation mix is changing faster than many models anticipated.5
Long-run modelling points to a dramatically different fleet by the early 2030s. One base-case projection has the NEM ending up with 50 GW of wind, 49 GW of solar and 45 GW of batteries, plus about 10 GW of gas. That compares with a current fleet that still leans heavily on coal for firm capacity.1
There is plenty of building to do yet. A high-cost-of-capital sensitivity case builds 62 GW of batteries and only 7 GW of gas, with carbon-priced gas in the mix allowing cheaper combined-cycle gas to displace some medium-duration battery storage. The divergence between those two paths is the central uncertainty for investors.1
Demand growth is coming from a corner of the market that barely existed a decade ago. Average data centre demand through Q1 of this year in the NEM was nearly 600 MW. In the first quarter, 11 data centres totalling 5.4 GW of ultimate load were working through transmission network connection processes.2
That pipeline of data centre load is the reason AEMO's forecasting has shifted toward demand-side scrutiny. The Electricity Statement of Opportunities and Gas Statement of Opportunities have considered the demand side more and more over time, but the primary question for planners is how quickly connection queues convert to actual consumption.2
AEMO's CEO has flagged that requirements, data sharing and connection arrangements and planning frameworks will all need work to accommodate the load growth. The market operator is effectively trying to run a transition on two fronts simultaneously — retiring coal while absorbing a wave of new industrial demand.2
The 2 MW disconnection notice will likely be resolved quickly and may not show up in any meaningful way in settlement data. But it arrives at a moment when the gap between operational reality and market pricing is unusually wide. Spot prices have collapsed by nearly half while the operator is still managing reserve shortfalls.5
The number to watch is how often AEMO issues these load disconnection advisories through the coming southern hemisphere spring. Each notice, however small, is data on where the system's true margins sit. If the frequency picks up as data centre connections come online, the current price softness will start to look increasingly disconnected from physical conditions.2