AEMO electricity dispatch summary

Evening update. At 8 in Sydney with the sun down in South Australia they are a mendicant state again. Just as well some other states have power to spare!

This is a fascinating story! A screen shot at 3pm Sydney time from the AEMO dispatch summary.  To complete the picture Tasmania was generating 1.5GW (almost all hydro) and using 1.1GW with o.4GW flowing to the mainland. The price was $45. Shortly before it was much lower.

South Australia was exporting a trickle of power and generating a bit less than half of their production from the wind – o.4GW out of 1.2GW for the whole SE Australian fleet. That 1.2GW  is a fifth of plated capacity and 4.3% of the total of 30GW of power in play at the time.

What sort of market generates a huge negative price for something where the windmills are only producing half of the power that the state is using?

What happens when all of the other pending RE capacity comes on line?

What happens on a windless evening at dinnertime when Liddell is gone and some other coal burner is down for maintenance? Regardless of the installed/plated capacity for solar and wind power.

Beat the rush and get a generator!

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9 Responses to AEMO electricity dispatch summary

  1. Rafe:

    Beat the rush and get a generator!

    Got one.
    But I’m also resigned to losing it if the shit hits the fan because it will be confiscated by the coppers for the Sergeants Duty Room beer fridge, because ‘essential services.’
    …and ‘fair’.

  2. Wil

    Half that production is solar, wait till the sun goes down and the minus will become a plus.

  3. BoyfromTottenham

    Rafe, thanks for a very interesting chart. Things have definitely gone weird since SA was islanded!
    My questions: Does anyone actually ‘buy’ power at negative prices (i.e. the producer has to pay the recipient to take it) in the AEMO market, or are negative prices just a signal to the producer that nobody wants to buy this unreliable stuff?
    If the former, what sort of craziness is this? If the latter, how long can this silliness continue?

  4. V

    From memory SA is still mostly cut off from the rest of the grid because of the outage of the Heywood Interconnector.

  5. New Chum

    Maybe this will help if the rain that falls fills our dams.
    a car that runs on water and oxygen watch the video.
    https://www.israelwired.com/category/science-tech

  6. yarpos

    Bought a generator last year and had the switchboard updated to allow a simple changeover. Come in handy a couple of times already. Nice to be able to still run the AC on a hot day.

    The way things are trending in VIC I am guessing we will see more frequent blackouts. Its funny looking at the fuel mix for the last week or so of islanding in SA. Despite multiples of nameplate capacity over real demand the real fuel source powering SA is gas.

    Billions of dollars spent on “renewables” and band aids to try and make it work and they still need gas for it to operate anything like reliably…… and fanboys still keep talking about the “transition to renewable energy” as if its a real thing.

  7. Judge Dredd

    Their upgraded website looks very nice

  8. John

    The SA thermal generators contributing to that picture are being directed on, meaning that they are not getting the spot price, they are getting the directed price.

    What seems not to be known is that SA is in such a perilous state in terms of system strength, that regardless of what the renewables (non-synchronous) are generating, a set amount of thermal generation (synchronous) must be generating into the system to provide inertia, etc. That is, they are directed on OUTSIDE of the spot market. The market price is no longer a valid measure of the cost of electricity. IN FACT, it’s no longer really a market.

    This AEMO document outlines the various required combinations of thermal generation, depending on the level of Renewables. A short document, well worth understanding.

    https://www.aemo.com.au/-/media/Files/Electricity/NEM/Security_and_Reliability/Congestion-Information/2018/Transfer-Limit-Advice—South-Australian-System-Strength.pdf

    In essence, this means that they can fill every square metre of their state with wind turbines, but they can’t reduce the CO2 output, of their state, one iota than they are now. Digging holes to fill them back in, so to speak.

  9. MatrixTransform

    it’s no longer really a market

    hasn’t been for some time now

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