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#solar

mlansbury@despora.de
Mark Lansbury

Big sand battery to store wind and solar energy using crushed soapstone

A huge sand battery is set to slash the carbon emissions of a Finnish town.

The industrial-scale storage unit in #Pornainen, southern Finland, will be the world’s biggest sand battery when it comes online within a year.

Capable of storing 100 MWh of thermal energy from solar and wind sources, it will enable residents to eliminate oil from their district heating network, helping to cut emissions by nearly 70 per cent.

The battery’s thermal energy storage capacity equates to almost one month’s heat demand in summer and a one-week demand in winter in Pornainen

https://www.euronews.com/green/2024/03/10/sand-batteries-could-be-key-breakthrough-in-storing-solar-and-wind-energy-year-round

#green #renewable #heat #solar #wind #thermal #battery #CO2 #Finland #PolarNightEnergy #ThermalEnergy #SandBattery #Kankaanpää #eco #Vatajankoski #PowerPlant

World’s largest sand battery set to slash emissions in Finnish town

The battery will be able to store a week’s heat demand in winter - how does it work?

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nowisthetime@pod.automat.click
nowisthetime

Major Network Outages | #Solar #Flare Impact?

Source: https://youtube.com/watch?v=Y6NyZKb51Gk
enter image description here
THREE #X-FLARES, ZERO CMES: Giant sunspot AR3590 is living up to the hype. In only 23 hours spanning Feb. 21-22, the active region unleashed three powerful X-class solar flares (X1.8, X1.7 and X6.3). The X6.3 flare is the strongest of Solar Cycle 25, so far, and the most powerful flare since the great solar storms of Sept. 2017.

The ultraviolet afterglow of yesterday's X6.3-class solar flare. Credit: NASA/SDO

Extreme ultraviolet radiation from each flare ionized the top of Earth's atmosphere, causing shortwave radio blackouts over Hawaii (late on Feb 21st), Australia (early on Feb. 22nd), and Hawaii again (late on Feb. 22nd). Mariners and ham radio operators in those areas may have noticed loss of signal at all frequencies below 30 MHz.

You might think all these flares would have hurled at least one CME toward Earth. In fact, the number is zero. SOHO coronagraphs have not detected any CMEs emerging from the blast zone. Sometimes this happens. Flares can occur without CMEs, and CMEs can occur without flares.

Disappointed aurora watchers shouldn't give up hope, though; AR3590 isn't finished.

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ramnath@nerdpol.ch
ramnath

Anticipation is building for a rare sight during the April 8th #total #solar #eclipse. In addition to the sun's corona, there's going to be a #comet. 12P/Pons-Brooks will be close to the sun during totality, potentially visible to the naked eye inside the Moon's shadow.

Here's what it looks like right now:

enter image description here

Michael Jaeger photographed the comet from his backyard observatory in Austria on Feb. 16th. "The comet's tail is magnificent," he says. "It is currently more than 2.5 degrees long."

At the moment, 12P is invisible to the naked eye; you need a telescope to see it. However, it is approaching the sun for a close encounter in April. Between now and then, forecasters expect the comet's brightness to increase at least 40-fold to magnitude +4.0. That would make it a borderline naked-eye object just in time for the eclipse.

"Border-line naked eye" doesn't sound spectacular, but 12P may have a trick up its sleeve. The comet is famously variable, with surges in brightness that no astronomer can fully predict. 12P is festooned with ice geysers, old-faithful-like vents that spew plumes of gas and dust into space, cloaking the comet in a veil of sunlight-reflecting material. An eruption of one of these geysers during (or even around the same time as) the #solar-eclipse could catapult it into the realm of magnificent.

https://spaceweather.com/

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anonymiss@despora.de
anonymiss

Sam #Altman Says #AI Using Too Much #Energy, Will Require #Breakthrough Energy Source

source: https://futurism.com/sam-altman-energy-breakthrough

"There's no way to get there without a breakthrough," Altman told audiences, as quoted by Reuters. "It motivates us to go invest more in #fusion," adding that we need better ways to store energy from #solar #power.

Of course, there is no reason to save energy, especially as the only way to improve AI models with today's technology is to throw more and more hardware at them. Some invention in the future will save us until then we will continue to heat up the planet.

#climate #future #humanity #technology #capitalism #earth #economy #politics #news

Sam Altman Says AI Using Too Much Energy, Will Require Breakthrough Energy Source

"There's no way to get there without a breakthrough," OpenAI CEO Sam Altman said, arguing that AI will soon need even more energy.

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