Diamond Energy on Energex: rank 17 of 27, about $1,757 a year

On Energex (QLD), Diamond Energy's cheapest plan ranks 17 of 27 at about $1,757 a year for a home using 12 kWh a day. On Ausgrid it ranks 24 of 29, $856 a year more than Tango Energy. Across 10 networks, Diamond Energy is among the more expensive retailers (the bottom 29%).

By the PowerPicker team, from the Australian Energy Regulator's plan data, updated 16 November 2026. How we rank plans.

Diamond Energy at a glance

  • On price, Diamond Energy is among the more expensive retailers: across 10 networks its cheapest plan ranks on average in the bottom 29% of retailers.
  • Its best position is on Energex (QLD), where it ranks 17 of 27 retailers at about $1,757 a year for a home using 12 kWh a day.
  • Its weakest is Ausgrid (NSW): 24 of 29, $856 a year more than the cheapest plan there (Tango Energy).
  • For solar homes, Diamond Energy's best feed-in tariff with no catches is 3.1c per kWh (on SA Power Networks, the best from any retailer there is 8.0c).
  • Diamond Energy sells 3 plans with free hours of power each day, such as Diamond Everyday - Daylight.

Rank = where Diamond Energy's cheapest plan sits among every retailer's cheapest plan on that network (1 is cheapest). Yearly bills are estimates for a home using 12 kWh a day, including GST and the daily charge.

Diamond Energy's cheapest plan vs every retailer, by network
StateNetworkRankDiamond Energy yearly billPlanCheapest on networkDiamond Energy best feed-inBest feed-in on network
NSWAusgrid24/29$2,054Diamond Everyday - Time of Use$1,198 (Tango Energy)3.1c10.0c
NSWEndeavour23/30$2,106Diamond Everyday - Time of Use$1,626 (GloBird Energy)3.1c10.0c
NSWEssential Energy Far West13/19$2,329Diamond Everyday - Time of Use$1,905 (Tango Energy)3.1c10.0c
QLDEnergex17/27$1,757Diamond Everyday - Time of Use$1,393 (Nectr)3.1c10.0c
VICAusNet Services16/25$1,605Diamond Everyday - Time of Use$1,256 (Tango Energy)1.2c8.0c
VICCitipower19/25$1,453Diamond Everyday - Time of Use$1,126 (1st Energy)1.2c8.0c
VICJemena19/25$1,491Diamond Everyday - Time of Use$1,156 (1st Energy)1.2c8.0c
VICPowercor18/25$1,582Diamond Everyday - Time of Use$1,226 (1st Energy)1.2c8.0c
VICUnited Energy19/26$1,495Diamond Everyday - Time of Use$1,140 (1st Energy)1.2c8.0c
SASA Power Networks19/27$2,384Diamond Everyday - Time of Use$1,966 (1st Energy)3.1c8.0c

A price review only, from the government plan feed, which may contain errors. It doesn't cover customer service. PowerPicker isn't affiliated with Diamond Energy.

See every Diamond Energy plan and rate.

Cheapest retailer in your state

New South Wales · Queensland · Victoria · South Australia

Common questions

Is Diamond Energy cheap?

On price, Diamond Energy is among the more expensive retailers: across 10 networks its cheapest plan ranks on average in the bottom 29% of retailers. Its weakest is Ausgrid (NSW): 24 of 29, $856 a year more than the cheapest plan there (Tango Energy).

Is Diamond Energy good for solar?

For solar homes, Diamond Energy's best feed-in tariff with no catches is 3.1c per kWh (on SA Power Networks, the best from any retailer there is 8.0c).

How does this review work?

We price every current Diamond Energy plan in the government's data for a home using 12 kWh a day, and compare its cheapest plan with every other retailer's cheapest plan on the same network. It's a price review only: it doesn't rate customer service.