Western Power is procuring short-term Non-Co-Optimised Essential System Services (NCESS) for reliability and system strength services in the North Country. Proponents must specify service quantities for base demand reliability (max 125 MW), peak demand reliability (max 125 MW), and system strength (max 1,000 MVA). The expected commencement date is between October 1, 2029, and October 1, 2032. Submissions must be made via vendorpanel by October 12, 2026. The selection criteria heavily weigh technical assessment (30%) and value for money (40%).
The total fee is the sum of the fixed price and the weekly variable fee, less the capacity credit value, and subject to any annual reconciliation amount for unavailability, in accordance with the contract.
Western Power's assessment of value for money is a balanced judgement of a range of financial and nonfinancial factors, taking into account whole of life costs, environment, quality, fitness for purpose, whs, supplier capability, availability of maintenance, service and support, sustainability impacts, governments social and economic objectives, and risks.
For new facilities, proponents must provide project delivery details, including a gantt chart or equivalent schedule, and the key milestones required to achieve commercial operations.
In the event the service is unavailable, there will be a reduction in payments by western power depending on the duration of the unavailability.
Failure to provide information regarding project methodology, environmental approvals, or technical assessment will result in exclusion from the evaluation process.