Some perspectives on events last Thursday and Friday
Some observations about the events across Victoria and South Australia of Thursday 18th and Friday 19th January 2018.
South Australia
AEMO dispatches Reserve Trader into a boiling Victorian region on Friday 19th January 2018
Reserve Trader dispatched
AEMO announces intention to (possibly) intervene in Victoria for Friday 19th January (by invoking Reserve Trader)
AEMO announces the possibility of dispatching "Reserve Trader" tomorrow to address a forecast tight supply/demand balance.
Tight supply/demand balance forecast for SA, VIC and TAS on Thursday and Friday
With high temperatures forecast for Thursday and Friday, here's a quick look at what might be in store...
Friday 12th January saw high instantaneous wind output in South Australia (but not quite a new record)
Prompted by a tweet referencing our RenewEconomy-sponsored NEMwatch Widget, we have a quick look at all-time peak instantaneous aggregate wind output in South Australia
It’ll be hot in parts of the NEM tomorrow (Saturday 6th Jan) but don’t expect demand to be too high – and don’t be trigger happy on the Emergency Demand Response!
Weather forecasts tell of an expected hot weekend on Saturday (in Melbourne & Adelaide) and then Sunday (in Sydney) - which has led to some news articles talking about "searing heat across the southeast...
Still a long way to go before wind forecasting models are as good as they will need to be as installed capacity grows….
Today (Wednesday 27th December) sees some wild gyrations in aggregate wind farm output across South Australia. The (current) impossibility in forecasting these gyrations accurately is one of the factors contributing to higher prices seen...
Coincident warm demand forecast for VIC and NSW tomorrow late afternoon (Monday 18th December)
AEMO forecasts NEM-wide demand to exceed 32,000MW tomorrow (Monday 18th December), which is far higher than seen in December 2016, and one reason for the LOR1 low reserve notices.
AEMO updates generator combinations for SA system strength
AEMO has adjusted the formula (i.e. constraint equations) used to manage system strength in South Australia, which has been (since mid-2017) by constraining down the output of wind farms under certain conditions.
Hornsdale Power Reserve (a.k.a. “the worlds biggest battery”) supplied SA for over an hour yesterday, peaking at 71 MW discharge
It's 1st December 2017 - the first day of summer, and also the promised delivery date for the "world's largest battery". In this updated post we look at how it's been operating.
Hornsdale Power Reserve (a.k.a. “the world’s biggest battery”) begins to charge, and also discharges for the first time on Saturday
It's Saturday 25th November 2017 and what is currently known as "the worlds biggest battery" has kicked into gear - charging for a couple hours this morning.
The two, SA Government-owned, “Emergency Generators” produce first power whilst commissioning
The two emergency generators provide first power to the South Australian grid.
Possibilities of Peak Demand (VIC and SA) during summer 2017-18
Our guest author, Rob Davis, looks at what might emerge for summer 2017-18 given the La Nina outlook, and prior distributions of Cooling Degree Days for Victoria and South Australia
Why is wind production being curtailed (or “dispatched down”, more strictly speaking)?
It was inevitable that Semi-Scheduled plant would start to experience times when they are dispatched down. It's a big prompt to take next steps up the learning curve.
How much wind-powered electricity production has been curtailed in SA since these new constraints were invoked?
An article that sums up some decidedly un-quick calculations we've performed - looking over an 8 week period to 13th September to estimate how much wind power has been curtailed by the AEMO.
On Saturday 2nd September, AEMO reacted to Severe Weather Warning by imposing limits on interconnector
On Saturday 2nd September, AEMO responded to a BOM-issued "Severe Weather Event" warning by reducing flow capacity west on the Heywood link. Here's how that looked...
Wind production in South Australia roared out of the June doldrums to a new production record in July 2017
From one extreme (perhaps lowest ever in June 2017, on like-for-like) to the other (new record production) in the space of just one month for aggregate wind in South Australia
Wind Farm output in SA constrained, again, by AEMO’s “System Strength” constraint
A quick note about high wind speeds in South Australia this afternoon leading to AEMO constraining wind farm output down for System Strength reasons.
Energy prices below zero in South Australia, but Raise Regulation FCAS prices through the roof
Low energy prices in South Australia combined with high prices for Raise Regulation
Another industrial energy user enters Liquidation (in South Australia this time)
Coming back from a week out of the office, I was disconcerted to see that yet another industrial energy user has closed its doors.