#solar

diane_a@diasp.org

Tornado watch

Sunshine kitty is with me watching the dark clouds of nourishment roll across the great sky above us. I have finished gardening and ready for the infusion of the greatest molecules of life...and here comes the rain! The dark clouds are covering us now and the solar system has kicked into battery power for the night. It is so beautiful here...back into our sturdy #tinyhouse

#myphoto #offgrid #solar

nowisthetime@pod.automat.click

Look at the SIZE of this #solar #panel #farm. (Jeez.) And look what happened.
enter image description here
https://t.me/ZandVchannel/106186

The text:
#Huge #Hailstorm in Damon, #Texas #Destroys Thousands of #Acres of #Solar-Farms
A hailstorm hammered thousands of solar panels at a Fort Bend County farm with emergency crews investigating, and neighbors worried whether any chemicals were leaking.
Large solar farm panels are commonly made of compound cadmium telluride - most home panels are made with silicon and don't contain dangerous chemicals.
No doubt the taxpayer will pick up the tab for damage.

diane_a@diasp.org

Using solar power to capture water from the air if there's no ground water left

between 1 and 3 kWh per liter of condensed water

At about 20% efficiency, worst case would need 15 meters of solar panels for one liter per hour, less than $1000 of solar panels by my calculations. So if your wetlands like where I live, dry up, large scale gardening is still possible for the price of a new car...

This experimental study demonstrates a thermodynamic cycle based on isothermal regeneration to enhance the exploitation of sorbents and low temperature energy sources, such as solar energy, for atmospheric water harvesting in dry climates. An experimental setup based on silica gel has been designed to produced liquid water with low regeneration temperatures for dry climates with dew points in the range of 2 to 8 °C and ambient temperatures between 20 and 35 °C. Experimental results demonstrate daily water production from 1.5 to 3.3 L day−1 per square meter of solar field, with a maximum regeneration temperature of 57 °C, and ambient temperatures up to 35 °C. The thermal energy required to activate the cycle is between 1 and 3 kWh per liter of condensed water.

https://www.sciencedirect.com/science/article/abs/pii/S0360544222011987

#solar

waynerad@diasp.org

"How a solar revolution in farming is depleting the world's groundwater."

"There is a solar-powered revolution going on in the fields of India. By 2026, more than 3 million farmers will be raising irrigation water from beneath their fields using solar-powered pumps. With effectively free water available in almost unlimited quantities to grow their crops, their lives could be transformed. Until the water runs out."

"The desert state of Rajasthan is the Indian pioneer and has more solar pumps than any other. Over the past decade, the government has given subsidized solar pumps to almost 100,000 farmers. Those pumps now water more than a million acres and have enabled agricultural water use to increase by more than a quarter. But as a result, water tables are falling rapidly."

How a solar revolution in farming is depleting the world's groundwater - Yale Environment 360

#agriculture #energy #solar #aquifers

ramnath@nerdpol.ch

https://youtube.com/watch?v=k7GWPTHNzPg

The upcoming #solar #eclipse on April 8th, 2024, is generating significant attention and concern in several US states, prompting measures like encouraging people to stock up on supplies and even deploying the National Guard.
The eclipse is expected to last longer and appear darker compared to the 2017 eclipse, attracting millions of viewers across the country.
States along the eclipse's path are taking precautions, such as advising residents to prepare for increased traffic, stock up on essentials, and have alternative communication methods due to potential cellular issues.
While some preparations may seem excessive, like bringing in the National Guard, it's viewed by some as an opportunity for states to practice emergency preparedness for future events.
Despite concerns and preparations, it's unlikely that anything significant will happen on April 8th other than the eclipse itself.
mlansbury@despora.de

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

nowisthetime@pod.automat.click

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.

ramnath@nerdpol.ch

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/