Solar boost 12 mth plan. Just signed up. Was not advertised online - just offered over the phone when shopping around. Switched from another supplier.
23% off usage and daily supply charges (currently 24.9c & $1.16 Pre discount). Plus 15c Solar feed in tarrif. Pic of plan pricing from contract attached
May be better than other Origin deal on Ozbargain offering 20c FIT but no discounts on supply if I read it right.
Update with more details from other posters (thanks all): call 1800 557 700 to ask for the deal. If the customer service rep does not know about it ask to speak to retention team. Some have been told it is a June special for switching from other suppliers. Looks like the 23% discount is available for non solar customers too.