AEMO's Upcoming ISP Faces Challenges from Rapid Residential Battery Adoption
The Australian Energy Market Operator (AEMO) will release its next Integrated System Plan (ISP) in June. Current forecasts may be outdated due to the rapid adoption of residential batteries spurred by the Cheaper Home Batteries Program, which aims for 2 million installations and 40 GWh of capacity by 2030. AEMO's draft ISP projected only 9.5 GWh by that time, significantly lower than federal goals. AEMO has alternative forecasts available, but it has yet to announce plans to update its assumptions ahead of the final ISP.
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The Australian Energy Market Operator (AEMO) will issue its next Integrated System Plan (ISP) in June. The ISP, which guides electricity transmission projects, faces challenges due to rapid residential battery adoption under the Cheaper Home Batteries Program, launched in July 2025.
This program aims for 2 million batteries and 40 GWh of capacity by 2030, but AEMO's draft ISP predicts only 9.5 GWh. Current figures show over 4.2 GWh already installed. AEMO is urged to update its forecasts, which rely on outdated assumptions. It has alternative forecasts, including an in-house model that aligns more closely with government targets, but no updates have been announced yet.
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