Retailers could be forced to come clean on the number of customers charged too much for their loyalty features after a comprehensive review of the electricity pricing system.
Tackling the "loyalty tax" was one of the goals of a self-initiated review by Australia's electricity rule-maker aimed at bringing the electricity pricing framework into the modern era.
The Australian Energy Market Commission also has a blueprint to reform network tariffs to ensure households with solar and batteries are both properly rewarded and supporting the grid, and renters and other customers without such kit are not overpaying.
Disengaged electricity customers ending up on uncompetitive offers after their attractive introductory deals lapse has been a long-standing bugbear.
The AEMC wants to "shine a light" on the problem to nudge more consumers to switch, including forcing retailers to notify long-term customers of foregone savings.