Belatedly noting return to service of VP5 and VP6 after the double-unit trip
On Monday 2nd February 2026 we noted the (almost?) simultaneous trips at Vales Point 5 and Vales Point 6. In this article we belatedly note the return to service.
Vales Point Power Station
Vales Point impact on frequency appears well mitigated on 2nd February 2026
"And what happened to system frequency?" Our initial inspection indicates there was a very minor impact.
Vales Point units trip on Monday 2nd February 2026
On Tuesday 2nd February we observed the trip of both Vales Point units. Ez2view supports understanding of the event and return to service.
Return to service struggles at Vales Point 5
Another thing that happened Christmas Day 2025 was the initial output from Vales Point 5, which has been offline since August 2025 following ‘turbine vibrations’. But its return to service has not been smooth.
About the delay in expected return to service of Vales Point 5
This morning we noted the delay in return to service for Vales Point unit 5 - here, we take a look.
Vales Point 6 returned to service Friday afternoon/evening 31st October 2025 after tube leak outage
A short record of the unplanned outage at Vales Point 6 - which came offline overnight into Tuesday 28th October 2025, and returned to service Friday 31st October 2025.
VP5 into the Planned part of it’s lengthy Unplanned-Planned-Unplanned outage
On my commute this morning (Friday 3rd Oct 2025), I noticed this update on LinkedIn yesterday evening from the team at Delta Electricity, speaking about their annual shutdown at Vales Point 5.
Outage at Vales Point unit 5 extended – return to service now not expected until 15th December 2025
Subsequent to earlier article about VP5, the expected duration of the outage pushed out by more than a month.
Vales Point unit 5 (partly unplanned) outage – return to service currently expected 9th November 2025
On Tuesday 26th August 2025 the VP5 unit came offline, with rebid reasons suggesting that ‘turbine vibrations’ were a factor. We take a look ~10 days later.
A quick look at system frequency, with 2 x coal units offline overnight into Saturday 31st May 2025
It’s fitting to book-end the week with a look at frequency performance overnight (into Saturday 31st May 2025) with two coal unit outages in NSW overnight to see what happened in terms of more ‘old style’ frequency disruption.
Do we have enough gas to wait until nuclear comes along?
Tristan Edis of Green Energy Markets discusses the practicalities of the gap that must be filled by the gas sector under the nuclear power timeline proposed by the Federal Opposition.
AEMC draft determination, about ‘Allowing AEMO to accept cash as credit support’
A little over 2 weeks ago (on Thu 3rd April 2025) the AEMC made a draft determination on the rule change proposal by Delta Electricity to allow AEMO to accept cash as credit support.
Today’s discussion (at the Senate Committee) of planned or unplanned outages in the NSW supply fleet on Wednesday 27th November 2024
References to WattClarity in today's session of the Senate Committee on Energy Planning and Regulation in Australia (between Matt Canavan and Daniel Westerman) spiked our interest - and, given the topic was NSW unit outages on Wednesday 27th November 2024, we took a quick look.
Delta’s ‘relatively urgent’ Rule Change reverts to the (slower) ‘standard rules consultation process’ at the AEMC
Today the AEMC weekly email notes that: ‘We will use the standard rules consultation process to assess Delta Electricity’s proposal to allow cash as credit support. We received a valid objection to the proposed use of the expedited process, meaning the standard approach will be...
Delta Electricity submits ‘relatively urgent’ Rule Change Proposal for December 2024 credit support deadline
A short note today (thanks to a tip by Thomas MacDonald) about a 'relatively urgent' rule change request by Delta Electricity that might help Vales Point operate into 2025.
Vales Point 6 unit back online earlier than expected … Tuesday morning 21st May 2024
On Tuesday morning 21st May 2024 the Vales Point 6 unit has returned to service, ~2 days earlier than earlier expectations.
Both Eraring 2 and Vales Point 6 will be offline for a few more days
An early afternoon look (Sat 18th May 2024) about the delays in return to service for the forced outages at two NSW coal units (Eraring unit 2 and Vales Point unit 6).
AEMO publishes MN116654 for ‘forecast LOR2’ in NSW for Sunday evening 19th May 2024
Another 'forecast LOR2' notice from AEMO ... this time looking at Sunday evening 19th may 2024.
Vales Point unit 6 trips offline on Friday 17th May 2024
A quick look at the trip of Vales Point unit 6 on Friday afternoon 17th May 2024.
Supply-side responses following the trip of two Eraring units on Wednesday 3 April 2024
An inspection of bids and dispatch outcomes indicates some units helped compensate for the loss of supply with the trip of ER01 and ER02.