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From: chrisq <syseng@gfsys.co.uk>
Newsgroups: sci.electronics.design
Subject: Re: The Physics Behind the Spanish Blackout
Date: Mon, 9 Jun 2025 22:30:27 +0100
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On 6/9/25 15:25, Bill Sloman wrote:
> On 10/06/2025 12:14 am, Joe Gwinn wrote:
>> On Sun, 08 Jun 2025 17:16:09 -0700, john larkin <jl@glen--canyon.com>
>> wrote:
>>
>>> On Sun, 08 Jun 2025 19:15:57 -0400, Joe Gwinn <joegwinn@comcast.net>
>>> wrote:
>>>
>>>>
>>>> The Physics Behind the Spanish Blackout, Bjorn Lomborg, Wall Street
>>>> Journal, 3 June 2025 issue, page A13.
>>>>
>>>>
>>>>
>>>> Here is a gift link.  No paywall, but they will insist on trying to
>>>> persuade you to subscribe.
>>>>
>>>> .<https://www.wsj.com/opinion/the-physics-behind-the-spanish- 
>>>> blackout-solar-and-wind-power-unstable-grid-8be54b2a? 
>>>> st=VUVUMR&reflink=desktopwebshare_permalink>
>>>>
>>>> Joe
>>>
>>> What's net zero is the line voltage. The issue is partly spinning
>>> mass, but more important is gross gigawatts available on bad
>>> afternoons.
>>>
>>> Another time bomb is that (cheap) solar panels and inverters and
>>> batteries don't last as long as is assumed in payback calculations. In
>>> 10 or 15 years there will be an enormous disposal problem. And lots of
>>> leaky roofs.
>>
>> Yep.  And given the likely end of the mandates and subsidies,
>> replacement may prove expensive, making the business case less
>> attractive.
> 
> Twaddle. Solar panels and wind turbines are the cheapest sources of 
> electricity available - certainly for Australia and Spain.
> 

You really need to ease up on the Koolaid, tastes nice, but short
term benefit.

Just how long do you think the battery farms will last under constant
charge / discharge cycling, and how much will it cost to replace them ?
Complete fools errand, but i''m sure the salesman must have been quite
persuasive :-).

Chris