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#hydropower

2 posts2 participants0 posts today

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 · Is climate science the next power source for renewable energy?As solar, wind, and hydropower expand, scientists say integrating climate data and forecasting is key to making renewable systems stronger. 

China has announced the commencement of a 1.4GW pumped storage power plant in Shanxi Province, as part of its ambitious plan to develop sustainable energy sources. The project, which will cost $1.5 billion, is located in the mountains of Daixian County and will take 72 months to complete, aiming to support the stability of the electricity grid, which is increasingly reliant on solar and wind power. #ChinaEnergyProjects #hydropower #PumpedStorage

archup.net/pumped-storage-chin

Identification Of Geothermal Anomalies From Landsat Derived Land Surface Temperature, Mount Meager Volcanic Complex, British Columbia, Canada
--
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

Replied to 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.

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

I'd like to draw your attention to this #ecofriendly #power solution based on #hydropower : Turbulent. They developed a turbine that works on rivers with low height differences, remove flood risks by not obstructing the water flow and allow fish and other wildlife to pass the turbine safely.

Great solution for (remote) locations where classic hydropower is not an option.

turbulent.be/technology

TurbulentTurbulent | TECHNOLOGYWe develop efficient micro hydropower plants for rivers and canals with a low height difference while being 100% eco-friendly.

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

‘Catastrophic’ 2023 lake outburst in India driven by glacial melt and permafrost thaw

#ClimateChange played a key role in the “catastrophic” 2023 floods in the Himalayan state of Sikkim in #India, a new study says.
The breach of one of the “largest, fastest-growing and most hazardous” glacial lakes in Sikkim, the South #Lhonak lake, led to cascading floods that killed 55 people and washed away a 1,200 megawatt (MW) #hydropower dam.
The event was identified as a glacial lake outburst flood (#GLOF), which is a sudden release of water from a lake fed by glacial melt.
#Sikkim is a small Himalayan state in north-east India, bordering #China in the north, #Bhutan in the east, #Nepal in the west and the state of West #Bengal in the south.
Part of the eastern #Himalaya, Sikkim is host to more than 90 #glaciers and #Kanchenjunga, the world’s third-highest peak. Sikkim serves as the origin and upper river basin for the #Teesta river, one of the largest tributaries of the #Brahmaputra river system.

carbonbrief.org/catastrophic-2