‘Intermittent and unreliable’: Australia has ‘massively overinvested’ in renewables



Page Research Centre Chief Executive Gerard Holland has criticised the Australian government for having “massively overinvested” in renewables which are “intermittent and unreliable”.

“It wouldn’t be a surprise to anyone that on Wednesday of this week, we were told not to use our pool pumps, our dishwashers, our air conditioners, less the entire grid collapse due to one unscheduled outage out at Eraring power station,” Mr Holland told Sky News Australia.

“We have massively overinvested in renewables.

“The vast majority – 80 per cent of investment – over the last 10 years has gone towards intermittent and unreliable power, and we have underinvested in that baseload capacity in the grid.”

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21 thoughts on “‘Intermittent and unreliable’: Australia has ‘massively overinvested’ in renewables”

  1. It's not the percentage of wild AC the public power grid is having to support from wind turbine and solar voltaic generated electricity that is substantially important, but its fuel savings, which is little to non.   In the US the advertised fuel savings for supporting the wild AC from wind turbine and solar voltaic generated electricity by the electric utility grid is 1% each. That number is likely rounded up significantly.

    The wild AC from wind turbine and solar voltaic electrical generation should not be supported by the public power grid. The practical use for wind turbine and solar voltaic generated electricity is for maintaining electrical energy storage such as charging storage batteries or working with something similar such as hydropower. The electrical storage can supply the power grid or run pumped hydro for stockpiling water for hydropower at about 50% efficiency.

    It can use less natural gas to run natural gas turbine generators at high efficiency 85% output where they can make full use of a steam cycle adding 50% higher efficiency making all the electricity than to 100% instantly back up a wind generator farm for the same electrical output to behave as a scheduled power station.

    Instant 100% backup requires natural gas turbine generators running at high availability consuming 70% of the fuel of full output, but making little electricity, where in a few seconds they can be at 100% output to instantly backup the wind farm 100%.

    In fast response peaking applications a second steam cycle made from the hot exhaust can not be used that adds another 50% efficiency. A NGCC plant running at its efficient output would only use 66-2/3% to make all the electricity verses 70% at the lowest fuel use for fast response peaking applications where when meeting dips in output from the wind farm more natural gas would be used.

    The cheapest incremental electricity is from hydropower and nuclear power. Second to those in the US would be a new ultra supercritical clean coal plant burning high BTU bituminous coal at a predicted crossover fueling cost with natural gas priced at $0.80 per million BTUs in 2022.

    US natural gas was priced at an offseason wholesale price in early summer 2024 of $2.50 per million BTUs, three times the fueling cost of the coal plant. This is the cheapest natural gas that could be expected without economic collapse. Winter peak natural gas wholesale prices can be several times higher. The US has some of the lowest cost natural gas in the world.

    UK wholesale natural gas was priced in US equivalence Oct. 2024 at $10.50 per million BTUs.

    It is not accurate to state residential electricity cost is greatly the cost of maintaining the power grid as sometimes said. In the US on average only 38% of the generated electricity reaches the residential electric power meter. 62% of the generated electricity on average is lost to grid resistance.

    A little less than $0.03 per kWh is average for US midwestern wholesale electricity scheduled 24 hours in advance. That costs $0.03/.38 = $0.078 at the residential meter. Our Cumberland, Indiana residential electricity in 2020 was priced at $0.10 per kWh. The cost verses sale price difference has to maintain the power grid and make some profit. Internally generated electricity should be significantly cheaper

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  2. Bowen can't get away with the mess he's created. He needs to be held accountable to the Australian public not just voted out and given a huge pension. This idiot has stuffed everything he's touched, hence Casanova, and MUST BE HELD TO ACCOUNT

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  3. There is renewables and now coles have decided to sell beef with, arguably, chemicals that can cause adverse effects to people,including infertility, to stop cows farting, the coles slogan, together to zero, I get it zero population, and zero wealth for most of us, another corporate entity that needs to go broke, don’t shop there!

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  4. Enjoy renewables 😂😂😂😂😂 turn the lucky country into a shit hole 3rd world country thanks Labor you've proved your true values again, give em another term so we can see more people living in tents and on the streets what a good look gotta love the tent

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  5. The scientifically illiterate Turtle-Head wants to power Australia on unreliable, intermittent, unaffordable Green Wishes, Labor Lies and Fairy Dust. You will never replace Australia's cheap, plentiful, reliable coal & gas, with Turtle Head and AnAl's odious "colon gas"! Flatulence won't power a nation.

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  6. The one question that has never been asked is what happens to all of this almost useless infrastructure should the LNP gain government next year. We have spent hundreds of millions of dollars on this fantasy and to remove it all would cost us many millions more. Then if Labor re-gain Government do they again resurrect their fantasy or just leave it.

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  7. Brainless Bowen !! Repair and maintenance is required with ALL machinery. You can't expect infrastructure to keep running without it, you service your car don't you? All our coal fired power stations have been deliberately neglected for dozens of years.. Paris agreement anyone??
    The only emissions are coming from these idiots Alboslezy Bowen and Keen

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  8. I lost my house, I lost my brother and I’m slowly losing my sanity and will. All this and more in 2 1/2 years of this far left abomination. Thanks for absolutely nothing Albo. Beware the man who has nothing else to lose.

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  9. Nuclear is a dead duck every day the sun shines.

    Nuclear only works economically if 247 demand.

    I can spread the words out if that helps you to understand the meaning of the words.

    Nuclear promoters TELL the same story.

    247 for 60 years at full power is the only way for nuclear to be economical.

    The government will have to make customers rooftop PV illegal. FMD.

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