Solar and wind remain “backbone” of least-cost future grid, as batteries squeeze gas to a fraction of the mix

Sun, 19 Jul 2026 19:31:17 +1000

Andrew Pam <xanni [at] glasswings.com.au>

Andrew Pam
<https://reneweconomy.com.au/solar-and-wind-remain-backbone-of-least-cost-future-grid-as-batteries-squeeze-gas-to-a-fraction-of-the-mix/>

"A mix of solar, onshore wind and battery storage remains the lowest-cost
pathway for Australia to reach net zero emissions, a new report has confirmed,
while also delivering near-term electricity price reductions and shielding the
energy market from global economic shocks.

CSIRO and the Australian Energy Market Operator (AEMO) have published the final
GenCost 2025–26 report, the agencies’ eighth annual assessment of the costs
of new-build electricity generation, storage and hydrogen technologies,
designed as an “objective benchmark” to guide policy out to 2030 and 2050.

Like the December draft, the final report concludes the cheapest path to net
zero by 2050 for the electricity sector will see solar PV and onshore wind
deliver the majority of supply (93%), as the two technologies continue to
deliver the lowest levelised cost of electricity from current day out to 2050.

Such is Australia’s progress on solar and wind and ever cheaper battery storage
that CSIRO says it expects average electricity generation costs to fall
further, down to between $80-$90 per megawatt-hour (MWh) from the 2025 levels
of $104/MWh, based on NEM electricity futures prices in the next three years."

Cheers,
       *** Xanni ***
--
mailto:xanni@xanadu.net               Andrew Pam
http://xanadu.com.au/                 Chief Scientist, Xanadu
https://glasswings.com.au/            Partner, Glass Wings
https://sericyb.com.au/               Manager, Serious Cybernetics

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