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#hydropower

1 post1 participant0 posts today
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ResearchBuzz: Firehose

BBC: Bitcoin in the bush – the crypto mine in remote Zambia. “Water and electronic equipment don’t usually mix well but it’s precisely the proximity to the river that’s drawn bitcoiners here. Philip [Walton]’s mine is plugged directly into a hydro-electric power plant that channels some of the Zambezi’s torrent through enormous turbines to generate continuous, clean electricity. More […]

https://rbfirehose.com/2025/03/28/bbc-bitcoin-in-the-bush-the-crypto-mine-in-remote-zambia/

ResearchBuzz: Firehose | Individual posts from ResearchBuzz · BBC: Bitcoin in the bush – the crypto mine in remote Zambia | ResearchBuzz: Firehose
More from ResearchBuzz: Firehose
#africa#cryptocurrency#cryptomining
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O=C=O

Can renewable energy survive climate change?

As #droughts reduce #hydropower and #clouds dim #solar output around the world, experts say #meteorology and #ClimateScience must be at the heart of the #energy transition.

Yet, even as the push for renewables gains momentum – driven by cheaper technology and an urgent need to slash carbon emissions – experts are waving cautionary flags: Because renewable energy sources depend on weather conditions, climate change is increasingly dictating, and jeopardizing, renewable energy production.

news.un.org/en/story/2025/03/1

UN News · Can renewable energy survive climate change?As droughts reduce hydropower and clouds dim solar output around the world, experts say meteorology and climate science must be at the heart of the energy transition.
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💧🌏 Greg Cocks

Identification Of Geothermal Anomalies From Landsat Derived Land Surface Temperature, Mount Meager Volcanic Complex, British Columbia, Canada
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doi.org/10.1016/j.rse.2025.114 <-- shared paper
--
“Highlights:
• A novel method for detecting geothermal components from solar energy dominated LST.
• Using LST time series to eliminate temporal variant solar energy input.
• Uncertainty in anomaly identification quantified by probability measure.
• Capable of revealing LST anomalies caused by geothermal, anthropogenic and surface processes..."
#GIS #spatial #mapping #britishcolumbia #BC #solar #geothermal #remotesensing #earthobservation #LST #spatialanalysis #spatiotemporal #naturalresources #volcanic #geology #geostatistics #landsurfacetemperature #satellite #geothermalheatflux #GHF #energybalance #calculation #model #MountMeager #Landsat #landsat8 #hotspring #landslide #massmovement #engineeringgeology #spring #seep #anthropogenic #HEP #hydropower #monitoring #risk #hazard

photo - sampling a fumerole, Job Glacier, Mount Meager, British Columbia, Canada
Inverted resistivity model from AMT data showing the subsurface rock resistivity structure in South Mount Meager (figure modified from Hormozzade Ghalati et al., 2022). a) resistivity slice at 500 m elevation (asl) showing two distinct high conductive anomalies and locations of the cross sections. Cross sections b) and c) in W-E direction, and d) and e) in N-S direction. Anomaly C1 is spatially in accordance with the occurrence of hot-warm spring swarms along the margin of the volcanic complex. Anomaly C2 appears in a circular shape, coincident spatially with the core area of the known deep geothermal prospect.
a) Map showing the location of Mount Meager Volcanic Complex (MMVC) and its relationship with the Garibaldi Volcanic Belt in western Canada (modified from Stewart, 2002). BR (Bridge River), CC (Mt. Cayley), EV (Elaho Valley), MG (Mt. Garibaldi), MC (Mountain Creek), WP (Watts Point). The red rectangular marks the study area. b, a Landsat-8 colour image (2017-07-18) showing details of the study area by a summer view of the MMVC with glacier (blue) at high altitude and vegetation cover (green) along the river valley. The red circle indicates locations of geothermal exploration wells, and orange polygons, the known hot springs.
Enlarged GHF anomaly maps and Google images explaining some of the possible anthropogenic and natural causes of high LST anomalies: a) GHF component of East Meager Anomaly; b) Google Earth image showing hydro-power station related facilities, and open quarries for local construction and road maintenance; c) GHF component of North Meager; d) Google Earth image showing a possible landslide site coincident with the anomalies.
Continued thread
Public
Nonilex

The #ColoradoRiver is shrinking due to #ClimateChange, which means the nation's 2 largest #reservoirs, #LakeMead & #LakePowell, created by #dams, have reached record low levels in recent years amid a #megadrought spanning >2 decades. If #water levels fall much lower, they could lose the ability to generate #hydropower within the massive dams that hold them back, or even lose the ability to pass water downstream.

#Trump#Idiocracy#PublicDisservice
Public
O=C=O

Carbon capture more costly than switching to renewables, researchers find

For most countries around the world, sourcing energy entirely from #wind, #solar, #geothermal, and #hydropower by 2050 would reduce their energy needs and costs, improve air quality, and help slow #ClimateChange, according to a study in Environmental Science & Technology.

These benefits could be realized at a fraction of the cost of implementing technologies that remove #CarbonDioxide (#CO2) from the air and capture it from stationary emitters like industrial smokestacks.

techxplore.com/news/2025-02-ca

#ClimateCrisis
#Capitalism
#Renewables
#CarbonCapture

Tech Xplore · Carbon capture more costly than switching to renewables, researchers findBy Josie Garthwaite
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💧🌏 Greg Cocks

Study Warns Of Glacial Outburst [GLOF] Risks From Hydropower Projects In The Himalayas, Caution Comes After Nod To Resume Testa III [Hydroelectric Project, India]
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timesofindia.indiatimes.com/in <-- shared media article
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doi.org/10.1126/science.ads265 <-- shared paper
--
#GIS #spatial #mapping #spatialanalysis #GLOF #Sikkim #Himalayas #India #climatechange #flood #flooding #risk #hazard #hydroelectric #HEP #energy #TestaIII #testa #dam #failure #engineeringgeology #engineering #construction #multihazard #melting #glacier #glacial #climatechange #weather #lowpressuresystem #planning #glaciallakes #lakes #water #hydrology #naturaldisaster #Lhonak #downstream #elevation #steepness #slope #geometry #infrastructure #publicsafety #lateral #moraine #sedimentation #cost #economics #remotesensing #model #modeling #imagery #outburstflood #overtopping #hydropower #vulnerable #humanimpact #policy #riskmanagement #warning #rainfall #precipitation

maps and charts - summary of damage assessment
maps and photos - Overview of the 3-4 October 2023 GLOF cascade from South Lhonak Lake, India
photos - Field evidence of sediment aggradation
photo - Teesta III hydroelectric dam soon after failure
Public
DoomsdaysCW

US‘s wind and #solar will generate more power than #coal in 2024

Utility-scale solar generation is up by over 30% amid future uncertainties.
John Timmer – Jan 27, 2025

"The rapid growth of #renewables has largely displaced #FossilFuel generation—specifically coal—rather than meeting increased demand. Despite the rise in demand, however, the long-term decline in coal has continued in 2024, with generation via coal down by nearly 5 percent. This will mean that this is the first year that wind and solar will combine to outproduce coal. Collectively, they'll account for roughly 17 percent of the US's energy production, while coal will only provide about 15 percent.

"The boost in wind and solar production has also been larger than the increase in generation from natural gas, which remains the single largest source of power on the grid, generating nearly 44 percent of the electricity used in the US.

"While wind currently accounts for 60 percent of the 'wind plus solar' figure, it's unlikely to stay on top for long. Generation from wind power grew by 7.6 percent compared to the same period a year earlier. By contrast, utility-scale solar generation increased by 31 percent over that same period, with small-scale solar (including rooftop installations) estimated to have increased by 15 percent.

"Adding in #hydropower and a handful of minor sources like #geothermal brings the total renewable electricity generated in the first 11 months of 2024 up to 23 percent of the total demand. Adding in nuclear to get the total of emissions-free generation brings the total up to 41 percent—just shy of the 44 percent produced by natural gas.

[...]

"But changes in policy are almost certainly on the way. The flurry of executive orders issued by the Trump administration includes a number of energy-related changes. These include defining "energy" in a way that excludes wind and solar, an end to offshore wind leasing and the threat to terminate existing leases, and a re-evaluation of the allocation of funds from some of the Biden administration's energy-focused laws.

"In essence, this sets up a clash among economics, state policies, and federal policy. Even without any subsidies, wind and solar are the cheapest ways to produce electricity in much of the US. In addition, a number of states have mandates that will require the use of more renewable energy. At the same time, the permitting process for the plants and their grid connections will often require approvals at the federal level, and it appears to be official policy to inhibit renewables when possible. And a number of states are also making attempts to block new renewable power installations.

"It's going to be a challenging period for everyone involved in #RenewableEnergy."

Read more:
arstechnica.com/science/2025/0
#SolarPower #WindPower #RenewablesNow #SolarPunkSunday

Ars Technica · US‘s wind and solar will generate more power than coal in 2024By John Timmer
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