NEM Overview: Thursday 14 May 2026

NEM-wide spot prices are broadly moderate this morning, ranging from $58.30/MWh in SA to $106.16/MWh in Tasmania, with QLD the next highest at $81.46/MWh and NSW at $79.00/MWh. Victoria sits at $66.31/MWh. The standout outlier is WA at $237.35/MWh, well above the eastern states. Tasmania's premium over the mainland reflects its relative isolation — the Basslink interconnector (T-V-MNSP1) is recording zero flow this interval, meaning Tasmania is neither importing nor exporting, and with demand at 1,148.79 MW being met almost entirely by hydro (1,060.31 MW) and wind (166.67 MW), the price elevation likely reflects tight local reserve margins rather than a supply shortfall per se. The VIC1-NSW1 interconnector is running near its export limit at 855.69 MW (limit 861.58 MW) and is binding, which is compressing the NSW-VIC spread and placing upward pressure on NSW prices. V-SA is flowing 565 MW into SA, consistent with SA's very low spot price given strong wind output.

NEM-wide renewable penetration sits at 51%, with sharp variation by region. SA is at 97.89% renewable this interval, driven by 1,879.41 MW of wind against demand of just 1,411.79 MW — the surplus is being absorbed via the V-SA and V-S-MNSP1 interconnectors. Victoria is at 72.11% renewable, with wind generating 2,257.80 MW and batteries contributing 306.69 MW. Queensland is at 46.83%, with wind at 1,371.79 MW and black coal at 2,032.63 MW. NSW remains the most thermal-heavy region at 21.79% renewable, with black coal producing 5,301.34 MW against total generation — hydro (547.84 MW) and wind (767.78 MW) provide the renewable share. Tasmania is 100% renewable this interval across hydro and wind. The NEM-wide grid stress score is elevated at 70.7, consistent with the binding VIC-NSW interconnector and the near-zero Basslink flow.

Two market notices warrant attention today. A non-conformance for unit BW04 in NSW was declared early this morning (01:30–01:40 AEST), with a -28 MW deviation against constraint NC-N_BW04 — a brief and isolated event, now passed. More notable is the SA intervention cluster: AEMO issued a direction in SA on 14 May for voltage control reasons, directing Quarantine PS Unit 5 (Origin Energy) to synchronise — that direction has since been cancelled as of 14:20 AEST on 14 May. However, the market notices remain active in the system. SA has seen a pattern of voltage-driven interventions in recent weeks (6 May also required a direction to the same unit), and with the region running near-100% non-synchronous generation this morning, voltage management remains a live operational consideration for today's dispatch.

Today's outlook is for continued moderate prices across the mainland. Autumn demand profiles across NSW (14.5°C, heating demand 3.5), VIC (10.5°C, heating demand 7.5), and TAS (7.6°C, heating demand 10.4) will support steady load into the evening peak. SA's