Electricity Compare says these rates kicked in late March which means I just missed out when I signed up in Feb (it was 70.99c daily and flat rate was 26.92c, the same flat rate is now 25.65c with 54.29c daily)
I only use about a kWh per day so the daily charge's great for me, big families may well do better with another mob.
If you're with Arcline and on the old rate call in and switch
Rates for RACV members are the same so far as I can tell, referrals apply ($50 referrer and referree), just put referral number in the "how did you hear about us" field when signing up
Edit: Thanks theredrabitt — RACV members get $125 credit through this deal apparently still active
Thanks @alvian!