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Electricity cost pass-through trial
This trial has concluded. Final pass-through credits were applied to eligible customer bills in October 2025 and no further credits will be issued. This page will be available for reference until 30 June 2026.
Background
Irrigation customers in relevant tariff groups of selected schemes participated in a ‘no one is worse off’ electricity cost pass-through trial from 1 July 2020 to 30 June 2025.
During the trial, Sunwater’s actual, scheme-level electricity cost savings (if any) were passed through to irrigation customers. This was done with a credit applied to their bills at the end of the financial year. If Sunwater spent more on electricity than it recovered from customers, no debits were applied to customers’ bills.
The trial covered irrigation customers in the following water supply schemes and irrigation tariff groups:
| Water Supply Scheme | Tariff group |
| Barker Barambah | Redgate Relift – medium priority |
| Bundaberg | Channel or watercourse supplemented by a channel |
| Burdekin Haughton | Burdekin Channel Giru Groundwater Area Glady’s Lagoon – other than from natural yield |
| Lower Mary River | Lower Mary Channel |
| Mareeba-Dimbulah | Channel – Relift |
| Upper Condamine | North Branch – medium priority North Branch – Risk A |
The final electricity pass-through credits were applied to eligible irrigation customers’ bills in October 2025.
2024-25 electricity cost pass-through outcomes
Sunwater has calculated the 2024-2025 electricity cost pass-through outcomes for the six participating water supply schemes. These outcomes are posted below.
Frequently asked questions
