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Pumped Hydro (Read 958 times)
lee
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Re: Pumped Hydro
Reply #15 - Aug 3rd, 2023 at 12:34pm
 
Dust reduces the effectiveness by up to 30% in one month. For roof top solar you need distilled water so they don't leave contaminants. An MIT study says they have a new electrostatic repulsion. But they have not given costs.


But it may not be a cure-all -

"We performed experiments at varying humidities from 5 percent to 95 percent,” Panat says. “As long as the ambient humidity is greater than 30 percent, you can remove almost all of the particles from the surface, but as humidity decreases, it becomes harder.”

https://news.mit.edu/2022/solar-panels-dust-magnets-0311

Deserts are generally less than 5% humidity.
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chimera
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Re: Pumped Hydro
Reply #16 - Aug 3rd, 2023 at 1:55pm
 
The lunar surface is covered by a layer of unconsolidated debris called the lunar regolith. The thickness of the regolith varies from about 5 m on mare surfaces to about 10 m on highland surfaces. Lumps smaller than 1 cm are called "lunar soil".
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Brian Ross
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Re: Pumped Hydro
Reply #17 - Aug 3rd, 2023 at 2:10pm
 
Quote:
The Andasol solar power station is a 150-megawatt (MW) concentrated solar power station and Europe's first commercial plant to use parabolic troughs. It is located near Guadix in Andalusia, Spain, and its name is a portmanteau of Andalusia and Sol (Sun in Spanish). The Andasol plant uses tanks of molten salt as thermal energy storage to continue generating electricity, irrespective of whether the sun is shining or not.

[Source]

Solar seems to work with molten salt without any trouble.  Ivanpath seems to be simply too large.
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« Last Edit: Aug 3rd, 2023 at 2:58pm by Brian Ross »  

It seems that I have upset a Moderator and are forbidden from using posting to the general forum now. So much for Freedom of Speech. Tsk, tsk, tsk...   Roll Eyes Roll Eyes
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chimera
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Re: Pumped Hydro
Reply #18 - Aug 3rd, 2023 at 2:52pm
 
Just guessing, but wind power at night could produce heat to add to the salt. (carbon fibre or halogen radiant heaters?)
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lee
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Re: Pumped Hydro
Reply #19 - Aug 3rd, 2023 at 3:02pm
 
Gee I wonder why they didn't think of that. Grin Grin Grin Grin
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Frank
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Re: Pumped Hydro
Reply #20 - Aug 3rd, 2023 at 3:02pm
 
Subsidies, subsidies, subsidies.


Spain faces €8 billion in renewable legal claims over past solar boom

Spain is investing in solar energy but still faces billions of euros worth of legal claims over previous energy investments.

When work started on Andasol in 2008, it was the largest solar energy plant in the world and its black panels stretched over enough land to cover 70 football pitches in the south of Spain near Granada.

Fourteen years later, the 51-hectare plant which produces a total of 495 GW-h of power per year, is embroiled in a multi-million-euro international legal battle between the Spanish government and a series of investors.

But this is just one of 51 claims totalling €8 billion that Spain’s left-wing coalition government is fighting against.
Why is Spain facing legal claims?
In 2007, Spain implemented several regulatory measures with the purpose of stimulating investment in the burgeoning renewable energy sector.

Initially, the system was a huge success, attracting interest from domestic investors and international companies.

However, after the boom, came the bust.

After the 2008 financial crisis, Spain was no longer able to guarantee the initial incentives and between 2012-2014, the government retrospectively removed them, prompting legal claims by the investors.

One of these claims started in 2013, when Infrastructure Services Luxembourg S.A.R.L and Energia Termosolar B.V, filed an arbitration claim against Spain with the International Centre for Settlement Investment Dispute (ICSID), alleging it breached its obligations under the Energy Charter Treaty because it removed incentives.

The companies claimed €196 million in damages. Spain denied the claim. Another investor involved in the same plant has also claimed damages.

Six years later, the tribunal ruled in favour of the companies and awarded €101m.

Spain has filed an application to annul the award, saying it would be construed as state aid.

Lawyers for the investors said they will pursue Spanish investments around the world to ensure payment.
https://www.euronews.com/my-europe/2022/12/27/spain-faces-8-billion-in-renewable-legal-claims-over-past-solar-boom

How much does a conventional coal, gas or hydro power station generate?
Answer: https://openinframap.org/stats/area/Australia/plants

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« Last Edit: Aug 3rd, 2023 at 3:17pm by Frank »  

Estragon: I can’t go on like this.
Vladimir: That’s what you think.
 
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lee
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Re: Pumped Hydro
Reply #21 - Aug 3rd, 2023 at 3:11pm
 
Brian Ross wrote on Aug 3rd, 2023 at 2:10pm:
Quote:
The Andasol solar power station is a 150-megawatt (MW) concentrated solar power station and Europe's first commercial plant to use parabolic troughs. It is located near Guadix in Andalusia, Spain, and its name is a portmanteau of Andalusia and Sol (Sun in Spanish). The Andasol plant uses tanks of molten salt as thermal energy storage to continue generating electricity, irrespective of whether the sun is shining or not.



1500 acres (600Ha) to produce 56MW.
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chimera
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Re: Pumped Hydro
Reply #22 - Aug 3rd, 2023 at 3:51pm
 
lee wrote on Aug 3rd, 2023 at 3:02pm:
Gee I wonder why they didn't think of that.

It's because of the lunar electricity load and supernova xray gamma power surge blowing a fuse.
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Brian Ross
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Re: Pumped Hydro
Reply #23 - Aug 3rd, 2023 at 4:57pm
 
lee wrote on Aug 3rd, 2023 at 3:11pm:
Brian Ross wrote on Aug 3rd, 2023 at 2:10pm:
Quote:
The Andasol solar power station is a 150-megawatt (MW) concentrated solar power station and Europe's first commercial plant to use parabolic troughs. It is located near Guadix in Andalusia, Spain, and its name is a portmanteau of Andalusia and Sol (Sun in Spanish). The Andasol plant uses tanks of molten salt as thermal energy storage to continue generating electricity, irrespective of whether the sun is shining or not.


1500 acres (600Ha) to produce 56MW.


Nothing comes for free... Tsk, tsk, tsk...  Roll Eyes Roll Eyes
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It seems that I have upset a Moderator and are forbidden from using posting to the general forum now. So much for Freedom of Speech. Tsk, tsk, tsk...   Roll Eyes Roll Eyes
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issuevoter
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Re: Pumped Hydro
Reply #24 - Aug 3rd, 2023 at 10:26pm
 
Did anyone actually watch the video?
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No political allegiance. No philosophy. No religion.
 
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