Market structures
Utility Solar Fell From Near the Average Price to a Deep Discount in Six Years
The value factor of NEM utility-scale solar, computed from AEMO's five-minute record: between 0.78 and 1.06 of the average wholesale price in 2019, between 0.28 and 0.53 in 2025. In Queensland, 49.5 per cent of 2025 utility solar output was generated at a negative price. Reconciled to AEMO's own published figures; wholesale system value, not project revenue.