(A regulated) Basslink has started transferring power, from 16:05 on Thursday 2nd July 2026

We’ve noted before (here and here) that Basslink became a regulated network service provider at midnight beginning Wednesday 1st July 2026.

However there were some initial teething issues in the switch-over (something to do with delivery of data signals, we believe) that meant we needed to wait ~40 hours before it would begin transfers of power under this new regime.

This happened from the 16:05 dispatch interval (NEM time) on Thursday 2nd July 2026.  Utilising an in-development v9.19 of ez2view (which is being released soon to prepare for PEC Stage 2, amongst other things) we take a quick look…

Firstly, here’s the ‘Interconnector Dashboard’ widget focused on the ‘T-V-MNSP1’ facility – showing the ramp up in flows, initially to the south (i.e. negative numbers):

In the dispatch intervals before that, both the Export Limit and Import Limit were wound down to 0MW via the ‘I-BL_ZERO’ constraint set, which we see here via the ‘Constraint Details’ widget:

Note that this constraint set:

1)  Was invoked from 17:05 on Tuesday 30th June 2026 in anticipation of the conversion; and

2)  Prior to that, was last used:

(a)  briefly on 20th March 2026;

(b)  and before that from 20th October 2025 to 24th October 2025.

In this filtered view of the ‘Constraint Sets’ widget, we see the ‘limit to zero’ constraint set plus a few others that will quickly follow as the limits on Basslink are progressively ramped up:

As per the annotations, we see a progressive ramp in capability:

1)  From 0MW (via the ‘I-BL_ZERO’ constraint set)

2)  First to 100MW (such as in 16:05 and 16:10 above via the ‘I-TV_100’ constraint set)

3)  Then to 150MW (via the ‘I-TV_150’ constraint set)

4)  Then to 200MW (via the ‘I-TV_200’ constraint set)

5)  Then to ~450MW:

(a)  via the ‘I-TV_CLPS’ constraint set

(b)  with the limits slightly different in either direction:

i. via ‘Out = Basslink Cable Load Prediction System (CLPS) dynamic rating data unavailable.’

ii.  currently envisaged through until 30th September 2026.

Readers here might like to refer to AEMO’s final version of the Go Live Plan for ‘Basslink Conversion to Regulated Transmission Network Service Provider 1 July 2026’, as published on 18th May 2026.