We are also in an Ergon monopoly area, and for all but one of our electricity accounts, the 'extra' charges - Service fee, Meter Charge, Minimum Payment - are higher than the actual usage. Eg 98%, 82% of the bill is 'fees'. We are not big users. There are "service fees" on each Tariff (residential, HWS, etc).
Checked the www.energymadeeasy.gov.au site for other offers. The only one is a reseller who is dearer. Our bills have been going up. The State Govt moved a big slice of State debt to Ergon, now they have to recoup it somehow while the State Govt crow about having reduced debt.
The cost for us of setting up solar outweighs the benefits we could accrue as the feed-in tariff is about 4 cents a kwh and we would still have to maintain an Ergon connection with all the fees.