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AAP
AAP
Environment
Poppy Johnston

Cheapest path to energy and climate goals locked in

Australia's electricity consumption is expected to double by 2050, with a mix of sources needed. (Dave Hunt/AAP PHOTOS)

More data centres, the delayed retirement of coal and warnings a sluggish transition could pose reliability risks are all contained in the grid operator's refreshed plan for a clean electricity system at least cost.

The cheapest pathway - solar and wind firmed by storage and backed by gas - was reaffirmed in the Australian Energy Market Operator's 20-year road map for the main grid serving the eastern states.

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