Event Database

Market Event History

Searchable database of Australian energy market events: price spikes, negative pricing, record renewable generation and major grid constraints. Each event is enriched with AI-generated causal analysis.

●This week's events

Total Events

412

This Month

202

Most Active Region

Constraint EventTASmajor27 June 2026, 08:30 am

High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price)

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Constraint EventNEMmoderate27 June 2026, 08:00 am

High-value binding constraint in NEM: F_T+NIL_MG_R6 ($251 shadow price)

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high_renewableTASminor27 June 2026, 06:30 am

High renewable penetration in TAS1: 100.0%

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Constraint EventTASmajor26 June 2026, 10:55 pm

High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price)

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Constraint EventTASmajor26 June 2026, 12:05 pm

High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price)

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high_renewableTASminor26 June 2026, 06:30 am

High renewable penetration in TAS1: 100.0%

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Constraint EventTASmajor26 June 2026, 05:05 am

High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price)

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Constraint EventTASmajor25 June 2026, 07:45 pm

High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price)

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Constraint EventNEMmoderate25 June 2026, 01:00 pm

High-value binding constraint in NEM: F_S+TBTU_L1 ($235 shadow price)

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Constraint EventTASmajor25 June 2026, 10:30 am

High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price)

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high_renewableTASminor25 June 2026, 06:25 am

High renewable penetration in TAS1: 100.0%

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Constraint EventTASmajor25 June 2026, 04:05 am

High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price)

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Constraint EventTASmajor24 June 2026, 09:55 pm

High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price)

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Price SpikeVICmoderate24 June 2026, 04:45 pm

Price spike in VIC1: $314/MWh across 2 intervals

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Price SpikeSAmoderate24 June 2026, 04:05 pm

Price spike in SA1: $681/MWh across 3 intervals

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Constraint EventTASmajor24 June 2026, 02:10 pm

High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price)

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Price SpikeSAmoderate24 June 2026, 10:15 am

Price spike in SA1: $312/MWh across 3 intervals

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Constraint EventTASmajor24 June 2026, 07:25 am

High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price)

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high_renewableTASminor24 June 2026, 06:30 am

High renewable penetration in TAS1: 100.0%

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Price SpikeSAmoderate24 June 2026, 04:25 am

Price spike in SA1: $846/MWh across 3 intervals

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Price SpikeSAmoderate23 June 2026, 10:35 pm

Price spike in SA1: $500/MWh across 2 intervals

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Constraint EventTASmajor23 June 2026, 05:25 pm

High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price)

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Price SpikeSAmoderate23 June 2026, 04:45 pm

Price spike in SA1: $380/MWh across 2 intervals

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Constraint EventNEMmajor23 June 2026, 02:10 pm

High-value binding constraint in NEM: F_T+NIL_MG_RECL_R6 ($20290 shadow price)

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Constraint EventTASmajor23 June 2026, 11:10 am

High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price)

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Price SpikeSAmoderate23 June 2026, 08:50 am

Price spike in SA1: $361/MWh across 2 intervals

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Price SpikeWAmoderate23 June 2026, 07:35 am

WEM price spike in WA: $253/MWh across 1 trading interval

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high_renewableTASminor23 June 2026, 06:25 am

High renewable penetration in TAS1: 100.0%

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Constraint EventTASmajor23 June 2026, 04:05 am

High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price)

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Price SpikeSAmoderate22 June 2026, 05:40 pm

Price spike in SA1: $491/MWh across 2 intervals

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Showing 30 of 412

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Recent Market Events

High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price), TAS1, constraint_event, major
A severe binding constraint (T_BLINK_TV_NGZ) manifested in TAS1 on 26 June 2026 evening with an exceptionally high shadow price of $7.308 million, creating significant constraint scarcity value. Regional electricity prices spiked to $94.91/MWh during the period, with TAS1 generation predominantly from hydroelectric sources (approximately 1290–1409 MW across the snapshot period) and minimal wind and gas-fired generation.
High-value binding constraint in NEM: F_T+NIL_MG_R6 ($251 shadow price), NEM, constraint_event, moderate
A binding constraint (F_T+NIL_MG_R6) reached a marginal value of $251.19/MWh in the NEM, indicating significant scarcity and upward pressure on dispatch costs in the affected region. This constraint appears multiple times in the binding stack with varying shadow prices, suggesting repeated or sustained binding conditions across dispatch intervals.
High renewable penetration in TAS1: 100.0%, TAS1, high_renewable, minor
Tasmania achieved 100% renewable generation on 26 June 2026 between 20:05 and 20:25 UTC, with hydro output dominating at approximately 1,140–1,206 MW and negligible wind contribution. Regional reference prices remained stable in the range of $79.12–$79.18/MWh despite the high renewable penetration.
High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price), TAS1, constraint_event, major
A binding constraint (T_BLINK_TV_NGZ) in TAS1 reached an exceptionally high shadow price of $7.308 million/MWh during the 12:30–13:00 period on 26 June 2026, coinciding with elevated regional prices peaking at $109.57/MWh around 12:45. The constraint remained active across multiple successive settlement intervals, indicating sustained transmission or operational pressure within the region.
High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price), TAS1, constraint_event, major
A major binding constraint (T_BLINK_TV_NGZ) with an exceptionally high shadow price of $7,308,000/MWh occurred in TAS1 during the early morning of 26 June 2026, creating severe network congestion. Regional electricity prices fluctuated between $54.54 and $70.22/MWh during this period, with the constraint appearing to episodically bind across multiple settlement intervals.
High renewable penetration in TAS1: 100.0%, TAS1, high_renewable, minor
Tasmania (TAS1) experienced 100% renewable energy penetration during the evening of 25 June 2026, with hydroelectric generation dominating supply at approximately 1,024–1,127 MW complemented by wind generation of 52–118 MW. Regional reference prices (RRP) remained stable in the range of $70–72/MWh across the period, indicating a well-managed dispatch despite the high renewable contribution.
High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price), TAS1, constraint_event, major
A binding constraint (T_BLINK_TV_NGZ) in TAS1 reached an exceptionally high shadow price of $7,308,000/MWh during the evening of 25 June 2026, indicating severe congestion or network limitation. Regional electricity prices ranged between $41–$50/MWh during this period, with TAS1 generation dominated by hydro (approximately 920–940 MW) and wind (50–95 MW) sources.
High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price), TAS1, constraint_event, major
Tasmania experienced a major constraint event on 25 June 2026 during the morning peak period, with binding constraint T_BLINK_TV_NGZ reaching an exceptional marginal value of $7.308 million. Regional prices exhibited high volatility, fluctuating between $70.28 and $106.78/MWh across the five-minute settlement intervals, with the constraint binding at multiple points throughout the analysed period.
High-value binding constraint in NEM: F_S+TBTU_L1 ($235 shadow price), NEM, constraint_event, moderate
A binding constraint (F_S+TBTU_L1) exhibited a moderately elevated shadow price of $235/MWh in the NEM, indicating locational scarcity in the region it constrains. The same constraint appeared multiple times in the dispatch interval stack with varying marginal values ($235, $96, $66.60, and $16.89/MWh), suggesting sequential constraint binding across different dispatch periods or dispatch layers.
High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price), TAS1, constraint_event, major
A binding constraint (T_BLINK_TV_NGZ) in TAS1 reached an exceptionally high shadow price of $7.308 million per MWh during the early morning of 25 June 2026, significantly elevating the regional reference price to around $90/MWh before moderating to approximately $78/MWh. The Tasmanian generation mix during this period was dominated by hydroelectric output (approximately 1296–1426 MW across multiple units) with minor contributions from wind and gas-fired generation.
High renewable penetration in TAS1: 100.0%, TAS1, high_renewable, minor
Tasmania (TAS1) achieved 100% renewable generation on 24 June 2026, with hydroelectric output comprising approximately 2,500 MW and wind generation around 20 MW across the settlement period. Regional reference prices (RRPs) settled in the range of $79–$90/MWh, declining sharply after the 20:00 settlement and stabilising around $79/MWh thereafter.
High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price), TAS1, constraint_event, major
A major binding constraint (T_BLINK_TV_NGZ) with an exceptionally high shadow price of $7.308 million/MWh became active in TAS1 during the 18:00–18:05 settlement periods on 24 June 2026. Regional electricity prices increased from $70.20/MWh to $76.64/MWh as the constraint tightened, despite stable hydro-dominated generation (~1050 MW) and minimal wind contribution.
High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price), TAS1, constraint_event, major
A major binding constraint (T_BLINK_TV_NGZ) with an exceptionally high shadow price of $7.308M operated in TAS1 on 24 June 2026 around 11:30–12:05 AEST, coinciding with a sharp spike in regional reference price from $71.17/MWh to a peak of $96.83/MWh. The constraint remained active across multiple settlement intervals as Tasmanian generation was dominated by approximately 1250–1380 MW of hydro output supplemented by 44–50 MW of wind.
Price spike in VIC1: $314/MWh across 2 intervals, VIC1, price_spike, moderate
VIC1 experienced a moderate price spike reaching $313.82/MWh at 06:45 on 24 June 2026, sustained above $308/MWh across two consecutive intervals. This represented a sharp escalation from the $246.80/MWh observed 5 minutes earlier, suggesting a sudden constraint or supply tightness event during the early morning period.
Price spike in SA1: $681/MWh across 3 intervals, SA1, price_spike, moderate
South Australia (SA1) experienced a moderate price spike reaching $680.7/MWh during the 06:05 interval on 24 June 2026, with elevated prices persisting across three consecutive intervals before returning to baseline levels. The spike occurred during early morning hours with mixed renewable and thermal generation contributing to the supply mix, followed by rapid price normalisation within 15 minutes.
High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price), TAS1, constraint_event, major
A binding constraint (T_BLINK_TV_NGZ) in TAS1 reached an exceptionally high shadow price of $7.308 million on 24 June 2026 during the early morning period (03:45–04:10 UTC). Regional electricity prices remained relatively moderate at $79–91/MWh despite the extreme constraint marginal value, with Tasmania's generation mix dominated by hydro output (1,217–1,380 MW) supplemented by modest wind and gas-OCGT contributions.
Price spike in SA1: $312/MWh across 3 intervals, SA1, price_spike, moderate
South Australia (SA1) experienced a price spike to $312.01/MWh across three consecutive five-minute intervals (00:15–00:25 on 24 June 2026), following a brief spike to $353/MWh in the preceding two intervals. The spike occurred during off-peak hours with a significant generation mix heavily weighted towards gas-fired generation (approximately 1,693 MW of OCGT and CCGT capacity) supported by solar and wind.
High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price), TAS1, constraint_event, major
A major binding constraint (T_BLINK_TV_NGZ) with an exceptionally high shadow price of $7,308,000/MWh activated in TAS1 during the evening of 23 June 2026, whilst regional prices remained stable around $79/MWh. The constraint event occurred during a period of moderate hydro generation (approximately 1,146–1,255 MW) and minimal wind and gas-fired output.
High renewable penetration in TAS1: 100.0%, TAS1, high_renewable, minor
Tasmania achieved 100% renewable generation on 23 June 2026 between 20:05 and 20:40 UTC, with hydro and wind supplying the entire load. Regional reference prices rose from 70.2 to 79.24 $/MWh over the 35-minute period, representing a 13% increase despite abundant renewable supply.
Price spike in SA1: $846/MWh across 3 intervals, SA1, price_spike, moderate
SA1 experienced a sharp price spike to $845.78/MWh in the 18:35 interval on 23 June 2026, following two intervals at $349.99/MWh. The spike occurred during the early evening period with gas-fired generation (OCGT and CCGT) comprising the dominant supply mix at approximately 982 MW combined.
Price spike in SA1: $500/MWh across 2 intervals, SA1, price_spike, moderate
SA1 experienced a moderate price spike reaching $500.44/MWh during the 12:35 UTC interval on 23 June 2026, with elevated pricing persisting across two settlement periods. The spike was preceded by volatile pricing swings in the preceding 30 minutes, including a sharp dip to $169.10/MWh at 12:30 UTC followed by the return to the $500 level.
High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price), TAS1, constraint_event, major
A major constraint event occurred in Tasmania on 23 June 2026, with binding constraint T_BLINK_TV_NGZ exhibiting an exceptionally high shadow price of $7.308 million, indicating severe scarcity. Regional prices spiked to $222/MWh in multiple settlement periods, with volatile swings between $78 and $222/MWh across the 25-minute window.
Price spike in SA1: $380/MWh across 2 intervals, SA1, price_spike, moderate
SA1 experienced a moderate price spike to $379.99/MWh across two consecutive intervals (06:45 and 06:50 on 23 June 2026), representing a sharp $80/MWh increase from the preceding interval. The spike was brief and sharp, with prices returning to $189.15/MWh by 06:55, indicating a temporary localized constraint.
High-value binding constraint in NEM: F_T+NIL_MG_RECL_R6 ($20290 shadow price), NEM, constraint_event, major
A binding constraint (F_T+NIL_MG_RECL_R6) reached a marginal value of $20,290/MWh in the NEM, indicating a significant scarcity signal in the market. This high shadow price reflects a severe limitation in the system's ability to meet demand under the constraint conditions active at the time.
High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price), TAS1, constraint_event, major
A major binding constraint (T_BLINK_TV_NGZ) emerged in TAS1 during the early morning of 23 June 2026, with an exceptionally high shadow price of $7,308,000/MWh. Tasmania's generation mix was dominated by hydro (approximately 3,464 MW combined) and wind (455 MW combined), with RRP remaining moderate in the $78–80/MWh range across the settlement intervals.
Price spike in SA1: $361/MWh across 2 intervals, SA1, price_spike, moderate
South Australia (SA1) experienced a moderate price spike reaching $360.55/MWh across two consecutive intervals (22:55 and 23:00 on 22 June 2026), representing a sharp increase from the preceding $299–$300/MWh range. The spike was relatively short-lived, lasting only two intervals in the evening period.
WEM price spike in WA: $253/MWh across 1 trading interval, WA1, price_spike, moderate
WA1 experienced a moderate price spike to $253.22/MWh in the 21:35 trading interval on 22 June 2026, representing a $7.74/MWh increase from the previous interval. Price escalation began at 21:25 ($245.48/MWh) and continued through the spike, with prices elevated relative to the preceding baseline of approximately $213/MWh.
High renewable penetration in TAS1: 100.0%, TAS1, high_renewable, minor
Tasmania achieved 100% renewable energy generation on 22 June 2026 between 20:00 and 20:30 AEST, with hydro and wind providing all 1,207–1,133 MW of supply. Regional reference prices increased modestly from $60.14/MWh to $70.20/MWh over this period, indicating tightening system conditions despite high renewable output.
High-value binding constraint in TAS1: T_BLINK_TV_NGZ ($7308000 shadow price), TAS1, constraint_event, major
A major binding constraint event occurred in TAS1 on 22 June 2026 with constraint T_BLINK_TV_NGZ reaching an exceptionally high shadow price of $7,308,000/MWh. This coincided with TAS1 spot prices rising to a peak of $71.69/MWh during the 17:55 settlement period, whilst the region maintained substantial hydro generation (832–847 MW) and moderate wind output (224–284 MW) with no OCGT dispatch.
Price spike in SA1: $491/MWh across 2 intervals, SA1, price_spike, moderate
SA1 experienced a price spike to $491/MWh across three intervals (07:20, 07:25, and 07:45 on 22 June 2026), representing a moderate elevation above the typical $300–$375/MWh range observed in adjacent periods. The spike occurred during morning shoulder demand with substantial gas-fired generation (OCGT and CCGT) contributing over 1,500 MW to the region's supply mix.