Powerlink, along with other Transmission Network Service Providers (TNSPs) in the National Electricity Market (NEM), have jointly developed a common approach to calculate the thermal rating of transmission lines.
This approach, detailed in the document TNSP Operational Line Ratings (PDF 308 KB), ensures all TNSPs in the NEM use the same equations when calculating thermal ratings.
For security reasons, we generally don’t publish or release the details of line ratings for our transmission network. However, we can make the information available to national electricity market participants or market institutions if it’s necessary for it to undertake its activities. This is assessed on a case-by-case basis.
All requests for information on the Ratings of Transmission Elements in Queensland must be in writing, on letterhead and signed, and address the following points as a minimum:
Requests must be posted to:
Group Manager Network Operation ServicesPowerlink Queensland PO Box 1193 Virginia QLD 4014
If you have any questions please phone Powerlink on (07) 3860 2111.