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The Forum > Article Comments > ‘Reliable’ wind power: what cost battery storage? > Comments

‘Reliable’ wind power: what cost battery storage? : Comments

By Geoff Carmody, published 9/7/2024

Either seasonal reliability is sacrificed, or customer costs soar even more. Or both.

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Looking at NemWatch a while ago (breakfast time) I see of 29,132 MW demand some 337 MW or 1.1% was met by batteries. The average spot price was $293 per MWh yet some solar farms bid just 10% ($30) of that around midday. The rewards for storing energy are considerable yet it barely makes a difference.

Energy retailers are offering credits to owners of bidirectional EVs and compatible home batteries to suck some juice out when it helps them. Unsurprisingly many battery owners decline. Who wants to start the day with less in the battery? Thus much touted virtual networks may not go prime time.

That's electrochemical batteries. Malcolm Turnbull tells us realtime nuclear is too expensive yet his pet energy storage project Snowy 2 has gone from $2bn capex to $12bn plus $5bn for HumeLink. Another political favourite is making hydrogen to fuel gas fired plants. The economics are woeful, as in you only get back 26% of the electricity you start with. Welcome to a future world of rationing, oops 'demand management'.
Posted by Taswegian, Tuesday, 9 July 2024 8:38:07 AM
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Are we talking about the batteries that last only hours or minutes, and have a tendency to catch fire?
Posted by ttbn, Tuesday, 9 July 2024 9:18:00 AM
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No ttbn,

I think it's the cheap safe and reliable batteries and other storage technologies that the CSIRO say will be available in the near future.

I think it fitting that people near wind farms have the red hue of Hell to send them to sleep.

Yep, save the environment by destroying it. Smart people, and well rewarded by taxpayers for killing koalas and wallabies, and we get a hopeless electricity system in return.
Posted by Fester, Tuesday, 9 July 2024 10:29:47 AM
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As detailed as Geoff Carmody’s look is at the costs and challenges of wind power and battery storage, a few issues render it too misleading and simplistic for it to be a balanced contribution to the debate.

Firstly, Carmody relies heavily on worst-case scenarios for wind power intermittency and storage needs without considering technological advancements or improved grid management. This results in an overly pessimistic view, ignoring how modern energy systems use a mix of renewable sources and strategies to balance these challenges.

The article also overlooks the rapid advancements in renewable energy technologies and falling costs. Historical trends show significant cost reductions in solar and battery technologies, which are not accounted for, leading to an outdated assessment of future possibilities.

Carmody’s focus on wind power as the sole renewable source is another critical flaw. In reality, energy systems increasingly use a diversified mix of solar, hydro, geothermal, and wind, along with advanced grid management and storage solutions. This diversified approach reduces the risks and costs associated with relying on a single energy source.

Moreover, the author uses current costs for battery storage without considering future reductions due to economies of scale and technological improvements. This assumption inflates future expense estimates and undermines the feasibility of renewable solutions.

Carmody also neglects the impact of policy measures and market dynamics. Government policies like subsidies, tax incentives, and carbon pricing can significantly alter the cost and adoption rate of renewable technologies. Market forces, including increased competition and innovation, play a crucial role in reducing costs and improving efficiencies.

The article dismisses critical strategies like demand response and distributed generation, which help balance the grid and reduce the need for extensive storage. Additionally, the tone suggests a bias against renewable energy, leading to selective presentation of facts and a lack of objectivity.

Lastly, Carmody simplifies battery life and replacement costs, assuming frequent replacements and high costs, while overlooking advancements in battery technology and recycling. The article also ignores energy efficiency and conservation measures, which can significantly reduce overall demand.
Posted by John Daysh, Tuesday, 9 July 2024 10:41:09 AM
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The stupidity in the decision-making circles is multiplying at far too alarming a rate !
Posted by Indyvidual, Tuesday, 9 July 2024 1:48:32 PM
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Posted by jameswilliamson, Tuesday, 9 July 2024 4:57:33 PM
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