Depends on which state you are in. For New South Wales, Queensland, South Australia, Tasmania and the Australian Capital Territory and in Victoria. WA?
The Victoria tool as an example uploads your actual use and feed-in as provided from your grid operator by time of day and presents plans. Not perfect but close.
I am not personally as familiar with energymadeeasy in the other states, but it is similar.
The caveat is how retailers are allowed (or not allowed) to change plans willy nilly so it is possible to find a great plan, switch, and be blind-sided by a change, so be wary.
