The October 2026 release adopts CSIRO's final GenCost 2025-26, which puts 2030 utility solar capex 39% higher than the July release

Overnight capital cost (A$/kW, real 2024)
July 2026 release
October 2026 release
Source: CSIRO GenCost 2025-26, AEMO 2026 ISP, Modo Energy
Note: Financial years (labelled by closing year). Gas peaker size class follows CSIRO GenCost. BESS capital costs follow Modo Energy's own curve and are unchanged.
MODOENERGY