ATCO Gas Australia Pty Ltd is required to include a mechanism to vary reference tariffs over the course of an access arrangement period in its access arrangement for the Mid-west and South-West Gas Distribution System.
| Charging parameter | Units | Reference Tariff Variation Effective from 1 January 2026 |
|---|---|---|
| REFERENCE TARIFF A1 | ||
| Standing charge | $/year | 50,973.09 |
| Demand charge | ||
| First 10 km | $/GJ km | 214.84 |
| Distance > 10 km | $/GJ km | 113.08 |
| Usage charge | ||
| First 10 km | $/GJ km | 0.04544 |
| Distance > 10 km | $/GJ km | 0.02289 |
| REFERENCE TARIFF A2 | ||
| Standing charge | $/Year | 28,190.01 |
| First 10 TJ per year | $/GJ | 2.74 |
| Volume > 10 TJ per year | $/GJ | 1.45 |
| REFERENCE TARIFF B1 | ||
| Standing charge | $/Year | 1,425.97 |
| First 5 TJ per year | $/GJ | 5.41 |
| Volume > 5 TJ per year | $/GJ | 4.65 |
| REFERENCE TARIFF B2 | ||
| Standing charge | $/Year | 357.85 |
| First 274 MJ per day | $/GJ | 9.05 |
| Volume > 274 MJ per day | $/GJ | 5.40 |
| REFERENCE TARIFF B3 | ||
| Standing charge | $/Year | 177.04 |
| Usage charge | $/GJ | 6.13 |