Opposition parties are still struggling with how to go about dismissing plans announced by Plaid Cymru leader Leanne Wood to set up a new body to drive down energy bills in Wales.
The idea of setting up a new not-for-profit energy body to buy gas and electricity at wholesale prices and sell directly to homes and businesses has not just gained traction with voters but also received quiet endorsement from industry and consumer experts.
The big message is that an arms-length firm set up in a similar way to Welsh Water would split its surpluses between developing energy efficiency measures and price protection for customers.
It's interesting that Labour attacked a separate Plaid proposal on health improvements but laid off from dissing the energy package.
It could be that Carwyn's crowd just don't think the proposal described by Ms Wood as a means of creating a cheaper, permanent, people-powered Welsh alternative is worth addressing. Or are they warming to the idea themselves?