World-class solar and growing Sydney/Melbourne hubs, but NEM connection delays and higher cost hold it in Tier 3. Self-supply solar is the upside route.
See live grid data →Workable but slow access: NEM connection delays and marginal-loss-factor risk.
Moderate availability; a long, thin grid.
Higher cost.
Real momentum (Sydney top-10 globally).
Carbon moderate-high (~460 g), coal phasing down with huge solar.
National roll-up: storm-driven tower collapses are the demonstrated transmission risk. The Feb 13, 2024 Victoria storm downed six 500 kV towers near Anakie, tripping all four Loy Yang A units (about 2,900 MW lost with two wind farms); the Oct 2024 Broken Hill event blew down seven towers on a radial line and backup failures left 12,700 properties intermittently off supply for two weeks, now the subject of AER Federal Court proceedings against Transgrid. PGIQ read: risk is concentrated in storm corridors and radial fringes, not the metro hubs; see AU-NSW / AU-VIC / AU-QLD.
What this means: A large new load faces occasional exposure here. Monitor conditions and keep a contingency plan.
event-based · Energy Networks Australia, Feb 2024 tower collapse · AER proceedings over Broken Hill outages (RenewEconomy)
The same Feb 2024 storm peaked at 530,000 Victorian distribution customers off supply, one of the largest outage events in the state's history, though around 90% were reconnected within 48 hours. PGIQ read: storm-day fragility with acceptable restoration; blue-sky reliability is not the concern.
What this means: A large new load faces occasional exposure here. Monitor conditions and keep a contingency plan.
event-based · Energy Networks Australia, Feb 2024 event detail
11 GW of notified, predominantly coal retirements over the next 10 years (Eraring, Bayswater, Vales Point, Yallourn, Callide B) against 28% consumption growth to 2034-35. AEMO's 2025 ESOO shows an improved outlook, with the earlier Eraring and Yallourn reliability gaps no longer forecast, but it is reliant on all expected investments being delivered on time and in full, and gaps are forecast in all mainland regions later in the decade under the committed-only view. PGIQ read: adequacy hinges on delivery execution, a Watch, not an Elevated, while replacement is committed.
What this means: A large new load faces occasional exposure here. Monitor conditions and keep a contingency plan.
assessed · AEMO 2025 ESOO media release · AEMO 2025 Electricity Statement of Opportunities
We have not compiled what firm service actually promises here: whether it is firm, non-firm or interruptible, the conditions under which you can be curtailed, the redundancy required of you, and the transfer time behind any N-1 commitment. Treat this as an open diligence item, not as an indication that service is firm.
Utility feeds, UPS, storage, on-site generation, islanding, black start and the residual energy you still expect to lose are properties of a specific site design, not of a market. This layer only exists once there is a site, and we never assert it for you.
67 GW
36 months
The full queue analysis for this market, which covers the share of projects that give up and leave the queue (the withdrawal rate), how much of the queue is data centers, and the sources, is available through /api/v1/queue/australia with a paid key. These are generation and storage queue figures: they show interconnection-system congestion, not a typical large-load connection wait.
High
1 of 2 data layers measured
Substantial
2 of 3 dimensions: reliability, connection, cost
June 2026
per-layer vintages below
| Layer | Method | Vintage | Freshness | Source |
|---|---|---|---|---|
| PGIQ Rating opinion | opinion | June 2026 | Current | PGIQ methodology |
| Reliability review | historical | 2025 | Fresh | Energy Networks Australia, Feb 2024 tower collapse |
| Interconnection queue | measured | end-2025 (LBNL 2026) | Fresh | AEMO Connections Scorecard (March 2026) |
Freshness reflects each layer's refresh cadence: reliability annual to three-yearly, capacity-auction and queue yearly, tariffs every year or two. The full cross-market freshness dashboard is at /data-quality.
The real-world events that test our Tier 3 call for Australia (NEM): 1 supports it. Each is dated and cited, so you can check the rating against what is actually happening on the ground.
First AEMO disclosure (Jun 2026) shows 11 data-centre projects totalling 5.4 GW in the NEM connection queue, ~60% NSW and ~40% VIC; AEMC draft connection-standard rule for large loads due final mid-2026.
Source: AEMO / Certified Strategic ↗How Australia (NEM)'s reliability-adjusted score and tier have moved, month by month. Part of your Analyst Desk.
This page is our full read on Australia (NEM) alone, and it is free. To decide where a large load should actually go, you need every market side by side, ranked on recurring cost and time-to-connect, with the history and alerts when your shortlist moves. That is the Analyst Desk.
With your Analyst Desk, compare Australia (NEM) against every market side by side, ranked on recurring cost and time-to-connect, with the full history and shortlist alerts.