Tootfinder

Solar power is growing exponentially in Africa
https://www.futuretimeline.net/blog/2025/09/1-solar-power-growth-exponential-africa.htm

Solar power is growing exponentially in Africa
An inflection point in Africa's adoption of solar energy is now clearly visible, driven by record imports and rapid expansion across dozens of countries on the continent.

Found a intresting site. It runs on a solar powered server. Sometimes it can go offline.
https://solar.lowtechmagazine.com/power/

Simulation of Solar Surface Flux Transport Constrained by Magnetic Power Spectra. I. Flux Transport Parameter
Yukun Luo, Jie Jiang, Ruihui Wang
https://arxiv.org/abs/2509.05989 …

Simulation of Solar Surface Flux Transport Constrained by Magnetic Power Spectra. I. Flux Transport Parameter
The multi-scale structure of the solar surface magnetic field is essential for understanding both the Sun's internal dynamo processes and its external magnetic activity. The surface flux transport (SFT) model has been successful in describing the large-scale evolution of the surface field, but its ability to capture observed multi-scale features, quantified by magnetic power spectra, remains uncertain. Here, we evaluate the SFT model by comparing observed and simulated power spectra across a br…

Virtual power plants offer a way forward for reliable and cost-effective power by combining rooftop solar and batteries. #climatechange #climatesolutions #climate

As rooftop solar gets hammered, virtual power plants offer a way forward
VPPs built out of home solar and battery systems could bolster the overtaxed power grid, lower energy costs for consumers, and help invigorate a…

• Solar and wind capacities can serve as insurance against gas supply shocks.

 
• We analyzed the economic value of increased renewable power capacity.

• Externality-based pricing can offer strategic risk management for power systems.
https://www.sciencedirect.com/science/arti

The insurance value of renewable energies
Solar and wind power are energy sources which, by their very nature, give rise to a degree of uncertainty, considering their variability depending on …

🌞 California farmers identify a hot new cash crop: Solar power
#agriculture

California farmers identify a hot new cash crop: Solar power
Imagine that you own a small, 20-acre farm in California's Central Valley. You and your family have cultivated this land for decades, but drought, increasing costs and decreasing water availability are making each year more difficult.

London Home Solar Power PV Pilot Project (2007) - Learn how I switched my office lighting to 100% "off-grid" solar PV, batteries definitely included! #solar #microgen -

London Home Solar Power PV Pilot Project (2007)
Learn how I switched my office lighting to 100% off-grid solar PV, batteries definitely included! #solar #microgen

"Spain has broken the ruinous link between power prices and volatile fossil fuels, something its European neighbours are desperate to do. Spain risks sliding back into costly gas reliance amid post-blackout fears. Boosting grids and batteries will help Spain break free from fossil dependency for good."
It looks like the link is only partially broken, not through planning but due to scale.
Decoupled: how Spain cut the link between gas and power prices using

Decoupled: how Spain cut the link between gas and power prices using renewables | Ember
Spain has some of the lowest wholesale electricity prices in Europe, largely owing to the country’s strong solar and wind growth which reduced the influence of expensive coal and gas power on the electricity market.

A Simultaneous Synergistic Protection Mechanism in Hybrid Perovskite-Organic Multi-junctions Enables Long-Term Stable and Efficient Tandem Solar Cells
Chao Liu, Kaicheng Zhang, Xin Zhou, Mingjian Wu, Paul Weitz, Shudi Qiu, Andrej Vincze, Yuchen Bai, Michael A. Anderson, Johannes Frisch, Regan G. Wilks, Marcus Bar, Zijian Peng, Chaohui Li, Jingjing Tian, Jiyun Zhang, Jianchang Wu, Jonas Englhard, Thomas Heumuller, Jens Hauch, Yixing Huang, Ning Li, Julien Bachmann, Erdmann Spiecker, Chr…

A Simultaneous Synergistic Protection Mechanism in Hybrid Perovskite-Organic Multi-junctions Enables Long-Term Stable and Efficient Tandem Solar Cells
Perovskite-organic tandem solar cells (P-O TSCs) hold great promise for next-generation thin-film photovoltaics, with steadily improving power conversion efficiency (PCE). However, the development of optimal interconnecting layers (ICLs) remains one major challenge for further efficiency gains, and progress in understanding the improved long-term stability of P-O tandem configuration has been lagging. In this study, we experimentally investigate the enhanced stability of p-i-n P-O TSCs employin…

Multi-Segment Photonic Power Converters for Energy Harvesting and High-Speed Optical Wireless Communication
Othman Younus, Behnaz Majlesein, Richard Nacke, Isaac N. O. Osahon, Carmine Pellegrino, Sina Babadi, Iman Tavakkolnia, Henning Helmers, Harald Haas
https://arxiv.org/abs/2510.06205

Multi-Segment Photonic Power Converters for Energy Harvesting and High-Speed Optical Wireless Communication
The demand for energy-efficient high-speed wireless communication, coupled with the rapid rise of IoT devices, requires systems that integrate power harvesting with optical data reception to eliminate the need for charging or battery replacements. Recent advances have explored the use of solar cells as optical receivers for high-speed data detection alongside power harvesting. \acs{GaAs}-based \acp{PPC} provide six times greater electron mobility than silicon- or cadmium telluride-based cells, …

"Sweden’s largest solar plant goes online"
#Sweden #SolarPower #Energy #Renewables

Sweden’s largest solar plant goes online
The 100 MW Hultsfred Solar Farm, developed by Alight and Neoen, will supply 95% of the energy produced to retailer H&M Group via a long-term power purchase agreement.

🇦🇹 Austria is launching a public tender for high-power charging hubs along the motorways. The first batch will cover 21 locations and include a solar roof, at least eight chargers for cars (including trailers), and chargers for 🚛 with at least one Megawatt charger, as well as overnight chargers.

ASFINAG schreibt Konzession für Planung, Errichtung und Betrieb von E-Ladeinfrastruktur aus

Global renewable energy generation surpasses coal for first time
> The world generated almost a third more solar power in the first half of the year compared with the same period in 2024, meeting 83% of the global increase in electricity demand. Wind power grew by just over 7%, allowing renewables to displace fossil fuels for the first time.
> China and India were largely responsible for the surge in renewables, according to the Ember report, in contrast with the US and Eur…

@… What's your view on this?
https://www.newscientist.com/article/24950

Why solar power is the only viable power source in the long run
Not only is solar more than capable of supplying all the world’s energy, in the long term it is the only power source that won’t fry the planet

Ridiculous: The Trump regime will no longer permit any solar or wind projects on federal lands unless they produce more energy-per-acre than coal, gas or nuclear power plants.
https://heatmap.news/sparks/interior-department-wind-solar-land-use

The Trump administration is more willing to support loan guarantees and tax breaks for nuclear power
than for wind and solar
because it is "more American"
than those forms of energy,
the director of the U.S. Energy Dominance Council said on Thursday

1/2 I think most people who are environment/global-warming focused read and were cheered by Bill McKibben’s New Yorker piece last month: https://www.newyorker.com/news/annals-of-a-warming-planet/46-billion-years-on-the-sun-is-havi…

4.6 Billion Years On, the Sun Is Having a Moment
In the past two years, without much notice, solar power has begun to truly transform the world’s energy system, Bill McKibben writes.

Additionally the yellow line is solar, so that's 50% wind, 22% solar meaning almost ¾ of UK power generation is clean and renewable right now. There's another 12% that's nuclear generated. Very, very little fossil fuel burning at the moment.
#UKenergy #Renewables #CleanEnergy

Here’s a fascinating dive into the dissonance between the Trump admin’s “Back to petrochem! Burn ourselves alive!!” energy policy and the actual reality on the ground, which is a massive shift toward renewable energy.
Reported by @… (my old friend from college!), featured on @…:
https://insideclimatenews.org/news/31072025/inside-clean-energy-solar-and-batteries-lead-us-power/

Electrospray Thruster Plume Impingement on CubeSat Solar Arrays: A Particle-Tracking Study
Ethan Kahn (Unaffiliated, Z\"urich, Switzerland)
https://arxiv.org/abs/2510.05084

Electrospray Thruster Plume Impingement on CubeSat Solar Arrays: A Particle-Tracking Study
Electrospray thrusters are emerging as a leading propulsion technology for CubeSats, offering high specific impulse ($I_{sp} > 1000$ s) and low power requirements. However, the divergent ion plumes can impinge on spacecraft surfaces, particularly body-mounted solar arrays, causing contamination and thrust efficiency losses. This study presents a validated particle-tracking simulation to quantify the effects of thruster placement on thrust efficiency and surface contamination for 1U, 3U, and 6U …

Photos: The Scale of China’s Solar-Power Projects - The Atlantic
https://www.theatlantic.com/photography/archive/2025/07/photos-china-solar-power-energy/683488/
"As the Trump administration’s “Big, Beautiful Bill” eliminate…

"Sweden switches on 89 MW hybrid wind, solar project"
#Sweden #Renewables #Energy

Sweden switches on 89 MW hybrid wind, solar project
The first hybrid power project belonging to Danish renewables developer European Energy is a 39.3 MW solar array tied to a 49.6 MW wind facility in southern Sweden.

Study of the HV power supply modules for the CUbesat Solar Polarimeter (CUSP)
Alessandro Lacerenza, Alda Rubini, Andrea Alimenti, Sergio Fabiani, Ettore Del Monte, Riccardo Campana, Mauro Centrone, Enrico Costa, Nicolas De Angelis, Giovanni De Cesare, Sergio Di Cosimo, Giuseppe Di Persio, Abhay Kumar, Pasqualino Loffredo, Giovanni Lombardi, Gabriele Minervini, Fabio Muleri, Paolo Romano, Emanuele Scalise, Enrico Silva, Paolo Soffitta, Davide Albanesi, Ilaria Baffo, Daniele Brienza, Val…

Study of the HV power supply modules for the CUbesat Solar Polarimeter (CUSP)
The CUbesat Solar Polarimeter (CUSP) project is a CubeSat mission orbiting the Earth aimed to measure the linear polarization of solar flares in the hard X-ray band by means of a Compton scattering polarimeter. CUSP will allow to study the magnetic reconnection and particle acceleration in the flaring magnetic structures of our star. CUSP is a project in the framework of the Alcor Program of the Italian Space Agency aimed to develop new CubeSat missions. CUSP undergoing the Phase B started in D…

Guyana brings solar power to Indigenous village, part of larger plan to prioritize Amerindian communities in national development. #climatechange #climatesolutions #climate

Guyana commissions solar grid for Indigenous village
A remote village in western Guyana is set to benefit from round the clock power following the commissioning of a solar grid with a combined capacity of 217.4 kW.

China is dramatically investing in renewable energy. In pure self-interest but it will also help to improve it’s position as a world superpower. In the USA Trump is breaking down investments in renewable energy. Europe should not follow his self-destructive example.
https://www.

Photos: The Scale of China’s Solar-Power Projects
As the Trump administration’s “Big, Beautiful Bill” eliminates many clean-energy incentives in the U.S., China continues huge investments in wind and solar power, reportedly accounting for 74 percent of all projects now under construction worldwide.

🌞 Solar power capacity additions in China doubled year-on-year to 212 gigawatts, with total capacity at the end of H1 increasing a whopping 54% year on year
[Post by @laurimyllyvirta on Bluesky]
That's more than the whole world installed in the full year 2021.

From Clean Energy Review
In Edmonton’s Blatchford neighbourhood, a new “virtual power plant” is flipping the script on how communities use energy. Twenty (but soon-to-be 100) townhomes, each equipped with rooftop solar panels and energy storage, are not just powering themselves—they can feed the grid, manage peak demand, and even provide emergency backup when the lights go out. It’s a glimpse of what clean households could look like across Canada.

For running my #HamRadio portable setup from solar power, I made a power distribution box. I didn't know where to stop, apparently, and now I have a beast that weighs 1.2kg. It has two isolated battery busses, each of which has an XT60M, PowerPole, and 5.5x2.1mm barrel connector to choose from, supporting the batteries I have and that friends might have. It has four other circuits that …

"Factcheck: 16 misleading myths about solar"
#SolarPower #Energy #Renewables

Factcheck: 16 misleading myths about solar
Carbon Brief factchecks 16 of the most common myths about solar power

Understanding the fill-factor limit of organic solar cells
Huotian Zhang, Jun Yuan, Tong Wang, Nurlan Tokmoldin, Rokas Jasiunas, Yiting Liu, Manasi Pranav, Yuxuan Li, Xiaolei Zhang, Vidmantas Gulbinas, Safa Shoaee, Yingping Zou, Veaceslav Coropceanu, Artem A. Bakulin, Dieter Neher, Thomas Kirchartz, Feng Gao
https://arxiv.org/abs/2507.2221…

Understanding the fill-factor limit of organic solar cells
Although the power conversion efficiencies of organic solar cells (OSCs) have surpassed 20%, they still lag behind commercial inorganic solar cells and emerging perovskite solar cells. To bridge this efficiency gap, improving the fill factor (FF) is critical, provided other photovoltaic parameters are not compromised. However, the fundamental understanding of the FF in OSCs remains incomplete. In this work, we systematically investigate a wide range of OSCs with the FF values spanning 0.27 to 0…

Hierarchically structured, high-efficiency and thermally robust perovskite solar cells with band-engineered double-hole layers
Md. Faiaad Rahman, Arpan Sur, Ahmed Zubair
https://arxiv.org/abs/2509.03146

Hierarchically structured, high-efficiency and thermally robust perovskite solar cells with band-engineered double-hole layers
Despite the promising optoelectronic properties of methylammonium lead iodide (MAPbI3)-based perovskite solar cells (PSCs), their commercial viability is hindered by interfacial energy misalignment, suboptimal light absorption, and thermal instability. Here, we present a comprehensive theoretical framework to enhance the power conversion efficiency (PCE) of MAPbI3 based PSC through integrated electronic and morphological engineering. Firstly, to address interfacial recombination and inefficient…

"Renewable energy technologies have experienced spectacular cost declines since 2010. This has been driven
by improvements in technology, competitive supply chains and economies of scale"
#RenewableEnergy
#Solar

First time I like what I see from an AI video.
*This video summary was created by AI from the original DW script. It was edited by a journalist before publication.
How hackers could take down Europe’s power supply
https://www.dw.com/en/how-hackers-could-ta

How hackers could take down Europe’s power supply – DW – 07/17/2025
Hackers can hijack solar energy installations and disrupt the grid. As threats grow, can attacks from China, Russia, or elsewhere be prevented?

🌡️ Solar breakthrough—hotter panels mean better storage
#energy

Solar breakthrough—hotter panels mean better storage
Scientists have uncovered a surprising advantage in next-generation solar technology—the hotter it gets, the better it can store energy. Traditionally, heat has been seen as the enemy of solar power. Standard solar panels lose efficiency as temperatures rise.

Energy-Constrained Navigation for Planetary Rovers under Hybrid RTG-Solar Power
Tianxin Hu, Weixiang Guo, Ruimeng Liu, Xinhang Xu, Rui Qian, Jinyu Chen, Shenghai Yuan, Lihua Xie
https://arxiv.org/abs/2509.15062

Energy-Constrained Navigation for Planetary Rovers under Hybrid RTG-Solar Power
Future planetary exploration rovers must operate for extended durations on hybrid power inputs that combine steady radioisotope thermoelectric generator (RTG) output with variable solar photovoltaic (PV) availability. While energy-aware planning has been studied for aerial and underwater robots under battery limits, few works for ground rovers explicitly model power flow or enforce instantaneous power constraints. Classical terrain-aware planners emphasize slope or traversability, and trajector…

“Extensive bidirectional charging functions are also available for the new BMW iX3, meaning that it can be used as an energy supply source for a variety of applications. The Vehicle-to-Load (V2L) function turns the new BMW iX3 into a mobile powerbank, which can supply electric devices with power while on the move. Vehicle-to-Home (V2H) hands it the role of storage unit for solar energy generated by home-fitted photovoltaic systems. [1/2]

The start of a new era. The new BMW iX3.
BMW presents the first series-produced Neue Klasse model. The new-generation BMW iX3 is a fully electric Sports Activity Vehicle (SAV) that gives customers their first on-the-road taste of a whole new era of Sheer Driving Pleasure. An all-new design language gives the car a character-rich appearance that faithfully conveys the technological progress made by the new model. With sixth-generation BMW eDrive technology, a range of up to 805 kilometres (500 miles) and a peak charging rate of 400 kW,…

Error Accumulation using Linearized Models for Aggregating Flexibility in Distribution Systems
Yanlin Jiang, Xinliang Dai, Frederik Zahn, Yi Guo, Veit Hagenmeyer
https://arxiv.org/abs/2508.04382

Error Accumulation using Linearized Models for Aggregating Flexibility in Distribution Systems
This paper investigates flexibility aggregation approaches based on linear models. We begin by examining the theoretical foundations of linear AC power flow, two variants of so-called DC power flow, and the LinDistFlow model, along with their underlying assumptions. The discussion covers key system details, including network topology, voltage constraints, and line losses. Simulations are conducted on the KIT Campus Nord network with real demand and solar data. Results show that, in the absence …

UN says global shift to renewable energy hits positive tipping point | AP News
https://apnews.com/article/climate-change-solar-wind-power-fossil-fuels-6aca4846e594ea8405f91edda39a03ad

Grid Transmission Evaluation for Solar Deployment and Data Center Growth
Kajal Sheth, Dhvanil Patel, Shyam Kareepadath Sajeev
https://arxiv.org/abs/2509.01778 https://

Grid Transmission Evaluation for Solar Deployment and Data Center Growth
The rapid growth of renewable energy deployment and data center demand in the United States has intensified challenges in grid interconnection, with project delays and escalating costs threatening both economic expansion and energy reliability. This study investigates transmission constraints using the IEEE 39-bus New England Power System model to evaluate the simultaneous interconnection of a 1 GW solar facility and a 1 GW data center load. Employing PSSE and Python-based automation (psspy), w…

"Wind, solar, and batteries are cheap. They are the fastest and most cost effective way to bring on new power generation [batteries: generation??]. However they are not cheaper than the great mass of incumbent capacity."
Paywalled so I've only read the first paras.
https://www.coldeye.earth/p/next-steps

Next Steps
Monday 4 August 2025

There’s apparently a railway in Australia that is all-electric with a solar array and a fat battery, which sells most of the power from their array back to the grid.
#HeardOnBBC

Double Power-law Electron Spectra in Solar Flares Due to Temperature Anisotropy Instabilities
Mart\'in Astete, Mario Riquelme, Daniel Verscharen
https://arxiv.org/abs/2509.26540

Double Power-law Electron Spectra in Solar Flares Due to Temperature Anisotropy Instabilities
Despite extensive observational and theoretical efforts, the physical processes responsible for shaping the diversity of accelerated electron spectra observed in solar flares remain poorly understood. We use 2D particle-in-cell (PIC) simulations of magnetized plasmas subject to continuous shear-driven magnetic amplification to investigate whether electron temperature anisotropy instabilities in above-the-loop-top (ALT) regions can account for this diversity. We explore how the resulting spectra…

On G83-Lite: Solar Nanogeneration For Everyone (2009) - Learn how plug-in solar curtain linings could trim your home power bill and footprint... #solar #balconySolar #nanogeneration -

On G83-Lite: Solar Nanogeneration For Everyone (2009)
Learn how plug-in solar curtain linings could trim your home power bill and footprint... #solar #balconySolar #nanogeneration

"Chart: See how solar is booming globally"
#SolarPower #Energy #Renewables

Chart: See how solar is booming globally
The world installed 64% more solar in the first half of this year than it did in the first half of last year. The driving force? China.

Climate Data for Power Systems Applications: Lessons in Reusing Wildfire Smoke Data for Solar PV Studies
Arleth Salinas, Irtaza Sohail, Valerio Pascucci, Pantelis Stefanakis, Saud Amjad, Aashish Panta, Roland Schigas, Timothy Chun-Yiu Chui, Nicolas Duboc, Mostafa Farrokhabadi, Roland Stull
https://arxiv.org/abs/2509.09888

Climate Data for Power Systems Applications: Lessons in Reusing Wildfire Smoke Data for Solar PV Studies
Data reuse is using data for a purpose distinct from its original intent. As data sharing becomes more prevalent in science, enabling effective data reuse is increasingly important. In this paper, we present a power systems case study of data repurposing for enabling data reuse. We define data repurposing as the process of transforming data to fit a new research purpose. In our case study, we repurpose a geospatial wildfire smoke forecast dataset into a historical dataset. We analyze its effica…

Absolutely incredible photos in this article:
https://mastodon.energy/@jonshell/114837642341286945

This could be 🇦🇹Austria's biggest EV charging hub to date, with 71 chargers of 3/400 kW output under a 700 kW solar carport with a 2.5 MWh battery. This single charging location now accounts for 10% of Oberösterreich's highest-power chargers.
https://ooe.orf.at/stories/3324291/

E-Mobilität: Großer E-Ladepark in Meggenhofen eröffnet
106 Ladepunkte, der Großteil davon Ultraschnelllader (400 und 300 kW), umfasst der nach eigenen Angaben größte E-Ladepark Österreichs, der am Freitag in Meggenhofen (Bezirk Grieskirchen) direkt an der Innkreisautobahn (A8) eröffnet wurde.

Starbucks partners with Workday for solar power installation in Texas, driving economic, workforce, and environmental benefits. #climatechange #climatesolutions #climate

Starbucks announces game-changing partnership in unexpected new industry: 'Demand is booming right now'
Starbucks and Workday have teamed up to fund the construction of a massive, 350-megawatt solar power installation in Texas.

Solar and Wind Power Forecasting: A Comparative Review of LSTM, Random Forest, and XGBoost Models
Afsaneh Mollasalehi, Armin Farhadi
https://arxiv.org/abs/2509.24059 https://

Solar and Wind Power Forecasting: A Comparative Review of LSTM, Random Forest, and XGBoost Models
Rising global energy demand from population growth raises concerns about the sustainability of fossil fuels. Consequently, the energy sector has increasingly transitioned to renewable energy sources like solar and wind, which are naturally abundant. However, the periodic and unpredictable nature of these resources pose significant challenges for power system reliability. Accurate forecasting is essential to ensure grid stability and optimize energy management. But due to the high variability in…

Torqued Accelerator using Radiation from the Sun (TARS) for Interstellar Payloads
David Kipping, Kathryn Lampo
https://arxiv.org/abs/2507.17615 https://

Torqued Accelerator using Radiation from the Sun (TARS) for Interstellar Payloads
The concept of exploring space using solar power is energetically appealing, but interstellar solar sails typically require extremely low areal densities (~0.8 g/m^2). This work explores an alternative approach: storing solar energy as rotational kinetic energy, which is later released to propel a microprobe beyond the solar system. The proposed Torqued Accelerator using Radiation from the Sun (TARS) consists of two thin surfaces with contrasting albedos that gradually spins up over weeks to mo…

"Renewables supply record 77.9% of power in Australia’s main grid"
#Australia #Energy #Renewables

Renewables supply record 77.9% of power in Australia’s main grid
The share of renewables in Australia’s main electricity grid continues to reach new highs, delivering 77.9% of electricity demand on Sunday with solar power contributing more than 55% of the record-breaking clean energy mix.

More than nine in 10 renewable power projects globally are now cheaper than fossil fuel alternatives.
Solar power is about 41% cheaper than the lowest-cost fossil fuel alternative,
and onshore wind generation is less than half the price of fossil fuels, according to a report from the International Renewable Energy Agency.
Costs have been driven down by the increasingly widespread use of the technologies,
a huge focus on low-carbon manufacturing in China,
and bu…

I wonder if they determined that's not a problem in China or if it's just a problem for future generations.
Photo source:
https://www.theatlantic.com/photography/archive/2025/07/photos-china-solar-power-energy/683488/?utm_source=flipboard&utm_medium=activitypub

Optimized Operation of Standalone Battery Energy Storage Systems in the Cross-Market Energy Arbitrage Business
Luis van Sandbergen
https://arxiv.org/abs/2509.21337 https://

Optimized Operation of Standalone Battery Energy Storage Systems in the Cross-Market Energy Arbitrage Business
The provision of renewable electricity is the foundation for a sustainable future. To achieve the goal of sustainable renewable energy, Battery Energy Storage Systems (BESS) could play a key role to counteract the intermittency of solar and wind generation power. In order to aid the system, the BESS can simply charge at low wholesale prices and discharge during high prices, which is also called energy arbitrage. However, the real-time execution of energy arbitrage is not straightforward for man…

Multi-modal encoder-decoder neural network for forecasting solar wind speed at L1
Dattaraj B. Dhuri, Shravan M. Hanasoge, Harsh Joon, Gopika SM, Dipankar Das, Bharat Kaul
https://arxiv.org/abs/2507.17298

Multi-modal encoder-decoder neural network for forecasting solar wind speed at L1
The solar wind, accelerated within the solar corona, sculpts the heliosphere and continuously interacts with planetary atmospheres. On Earth, high-speed solar-wind streams may lead to severe disruption of satellite operations and power grids. Accurate and reliable forecasting of the ambient solar-wind speed is therefore highly desirable. This work presents an encoder-decoder neural-network framework for simultaneously forecasting the daily averaged solar-wind speed for the subsequent four days.…

A sub-hourly spatio-temporal statistical model for solar irradiance in Ireland using open-source data
Maeve Upton, Eamonn Organ, Amanda Lenzi, James Sweeney
https://arxiv.org/abs/2509.21041

A sub-hourly spatio-temporal statistical model for solar irradiance in Ireland using open-source data
Accurate estimation of solar irradiance is essential for reliable modelling of solar photovoltaic (PV) power production. In Ireland's highly variable maritime climate, where ground-based measurement stations are sparsely distributed, selecting an appropriate solar irradiance dataset presents a significant challenge. This study introduces a novel Bayesian spatio-temporal modelling framework for predicting solar irradiance at hourly and sub-hourly (10-minute) resolutions across Ireland. Cross-val…

AGL launches groundbreaking solar project using mirrors to capture sun's power, aiming for 100% renewable energy by 2027. #climatechange #climatesolutions #climate

Energy firm launches innovative project that uses mirrors to capture sun's power: 'Groundbreaking'
As temperatures continue to rise around the globe, companies are increasingly looking for ways to provide massive amounts of energy without releasing toxic pollution into the air.

"From chalkboards to e-learning, solar boosts schooling in an Indian floodplain"
#India #SolarPower #Energy

From chalkboards to e-learning, solar boosts schooling in an Indian floodplain
On remote river islands in eastern India’s Assam state, solar power is helping children access education more reliably, reports Mongabay India’s Shailesh Shrivastava. Schools in Assam’s Brahmaputra River Valley recently introduced digital classroom infrastructure, bringing audio-visual learning to children. For some students, this shift from chalkboard-only teaching has been a game changer. “Until last year, […]

innovations from the semiconductor, electronics, metallurgy, and petroleum industries played a major role in reducing both PhotoVoltaic and Balance of System (BOS) costs,
but BOS costs were also impacted by innovations in software engineering and electric utilities.
Noninnovation factors, like efficiency gains from bulk purchasing and the accumulation of knowledge in the solar power industry, also reduced some cost variables.
In addition, while most PV panel innovations origi…

Surprisingly diverse innovations led to dramatically cheaper solar panels
A new study reveals key innovations that contributed to the rapid decline of solar energy systems, showing that many of the most significant technological advances came from outside the solar sector. This work could help businesses, researchers, and policymakers identify optimal areas for future investment.

"Study finds a 15% solar power boost could cut US CO₂ emissions by millions of metric tons annually"
#US #USA #America #SolarPower

Study finds a 15% solar power boost could cut US CO₂ emissions by millions of metric tons annually
Increasing solar power generation in the U.S. by 15% could lead to an annual reduction of 8.54 million metric tons of carbon dioxide (CO2) emissions, according to a new study led by Harvard T.H. Chan School of Public Health. The researchers found that the climate benefits of solar power differ markedly across U.S. regions, pinpointing where clean energy investments return the greatest climate dividends.

Electrostatic waves in astrophysical Druyvesteyn plasmas: I. Langmuir waves
Simon Tischmann, Rudi Gaelzer, Dustin Schr\"oder, Marian Lazar, Horst Fichtner
https://arxiv.org/abs/2509.21506

Electrostatic waves in astrophysical Druyvesteyn plasmas: I. Langmuir waves
Plasmas in various astrophysical systems are in non-equilibrium states as evidenced by direct in-situ measurements in the solar wind, solar corona and planetary environments as well as by indirect observations of various sources of waves and emissions. Specific are non-Maxwellian velocity distributions with suprathermal tails, for whose description the most-used are the Kappa (power-law) distributions. With this paper we introduce a modeling alternative for linear waves in plasmas described by …

Thermal Degradation Mechanisms and Stability Enhancement Strategies in Perovskite Solar Cells: A Review
Arghya Paul, Kanak Raj, Prince Raj Lawrence Raj, Pratim Kumar
https://arxiv.org/abs/2509.13700

Thermal Degradation Mechanisms and Stability Enhancement Strategies in Perovskite Solar Cells: A Review
Perovskite Solar Cells (PSCs) have garnered global research interest owing to their superior photovoltaic (PV) performance. The future of photovoltaic technology lies in PSCs since they can produce power with performance on par with the best silicon solar cells while being less expensive. PSCs have enormous potential; in just ten years, their efficiency increased from 3.8% to 25.2%, and research into new developments is still ongoing. Thermal instability is PSCs' main disadvantage, despite thei…

Survey shows strong support for Australia's solar project, but doubts remain about exporting energy to Singapore. Public opinion emphasizes the importance of renewable energy for reducing carbon emissions. #climatechange #climatesolutions

Survey backs Australia solar plan, doubts linger over Singapore exports
A Charles Darwin University study shows strong support for SunCable’s planned Australia-Asia PowerLink, but weaker approval for exporting its power to Singapore.

"Wind and solar power fuel over one-third of Brazil's electricity for first time"
#Brazil #Energy #Renewables

Wind and solar power fuel over one-third of Brazil's electricity for first time
Wind and solar power generated more than a third of Brazil's electricity in August, the first month on record the two renewable sources have crossed that threshold, according to government data made public on Thursday and analyzed by energy think tank Ember.

Diffraction and Scattering Modeling for Laser Power Beaming in Lunar Environment
Yanni Jiwan-Mercier, Bar{\i}\c{s} D\"onmez, G\"une\c{s} Karabulut-Kurt, S\'ebastien Loranger
https://arxiv.org/abs/2507.13982

Diffraction and Scattering Modeling for Laser Power Beaming in Lunar Environment
Reliable energy delivery is a critical requirement for long-term lunar missions, particularly in regions with limited solar access, such as polar craters and during extended lunar nights. Optical Power Beaming (OPB) using high-power lasers offers a promising alternative to conventional solar power, but the effects of suspended lunar dust on beam propagation remain poorly understood. This study introduces a detailed simulation model that incorporates both diffraction and height-dep…

Solar power in Texas breaks records, stabilizes grid during peak times. Transition to renewables crucial for meeting demand and reducing reliance on fossil fuels. #climatechange #climatesolutions #climate

Solar and batteries had a record-setting, grid-stabilizing summer in Texas
Solar has set 17 power generation records in Texas so far this year, shoring up the grid alongside batteries as some gas plant developers step back.

Modeling of AR 12760 with GX Simulator and Evidence for the Extended Transition Region in Peripheral Active Region Loops
Therese A. Kucera, Gelu M. Nita, James A. Klimchuk, Gregory D. Fleishman
https://arxiv.org/abs/2508.20979

Modeling of AR 12760 with GX Simulator and Evidence for the Extended Transition Region in Peripheral Active Region Loops
In order to understand solar atmospheric heating it is important to test heating models against spatially resolved data from solar active regions. Here we model a small active region, AR~12760 observed on 2020 April 28, with the GX Simulator package by fitting the EUV intensities in wavebands observed by Solar Dynamics Observatory's Atmospheric Imaging Assembly. We assume the temporally and spatially averaged heating rate along a loop has a power-law dependence on loop length, $L$ and average m…

"Solar tops EU power mix in June with record 22% share"
#EU #EuropeanUnion #SolarPower #Energy

Solar tops EU power mix in June with record 22% share
Solar accounted for 22% of electricity in the European Union in June, surpassing nuclear as the largest source, while renewables supplied 54% of net power in the second quarter, driven by rising PV output.

Solar Power outstripped all others in Europe last Month for First Time
https://www.juancole.com/2025/07/outstripped-others-europe.html

Solarpower has won, not because it is alternative or woke, but because of economy. And it will keep winning with still improving panels, becoming thinner and easy to use everywhere, battery technology is also still improving.
https://www.newyorker.com/news/annals-of…

4.6 Billion Years On, the Sun Is Having a Moment
In the past two years, without much notice, solar power has begun to truly transform the world’s energy system, Bill McKibben writes.

Breakthrough in solar cell efficiency: Scientists surpass Shockley-Queisser limit with 50-60% efficiency at extremely low temperatures. #climatechange #climatesolutions #climate

Scientists report experimental breach of Shockley-Queisser efficiency limit for silicon solar cell
A Chinese-US research group claims to have achieved a power conversion efficiency of over 50% in an n-type single-junction solar cell by inhibiting light conversion to heat at extremely low temperatures. The result was achieved at temperatures of 30-50 Kelvin, which are a few tens of degrees above absolute zero.

"Chart: Check out how fast China is shifting to renewables"
#China #Energy #Renewables

Chart: Check out how fast China is shifting to renewables
China still emits more planet-warming pollution than any other country, but its furious build-out of wind and solar means the nation is scaling back on…

US solar plant construction faces obstacles under current administration, hindering progress towards a sustainable future. Despite challenges, clean power plants offer hope for industry growth. #climatechange #climatesolutions

US solar plant construction is on a record-breaking spree — for now
Solar power is having a bumper year as developers race to complete installations before Trump's policy changes pull the rug out from under the industry.

@… The plugin solar: yes (like regular inverters). The package sold and installed by Aldi Solar's installation partner in Australia comes with backup/power outage capabilities. This requires a switch in the home's electrical installation to isolate it from the public grid if that goes down.

"‘Europe is becoming a solar powerhouse’: Solar tops EU electricity as coal sinks to new low"
#Europe #SolarPower #Energy

Solar becomes EU’s largest electricity source for the first time
The Netherlands and Greece were the top solar record setters, while wind power also hit new highs in May and June.

Challan: Solar Full-disk Imaging-Spectroscopic Telescope using the Drift-Scanning Technique
Heesu Yang, Maria S. Madjarska, Donguk Song, Hannah Kwak, Sung-Hong Park, Eun-Kyung Lim, Sujin Kim, Su-Chan Bong, Yeon-Han Kim, Seonghwan Choi
https://arxiv.org/abs/2507.16294

Challan: Solar Full-disk Imaging-Spectroscopic Telescope using the Drift-Scanning Technique
The Challan instrument is a solar full-disk imaging spectroscopic telescope planned to be installed at three sites with a 120-degree longitudinal difference, enabling continuous 24-hour observations of the Sun. It will take data every 2.5 min with a spatial resolution of $2-3^{\prime\prime}$ and a spectral resolving power (R) of >43,000 in H$α$ and Ca II 854.2 nm bands simultaneously. Challan is composed of two modules, each dedicated to a specific waveband. This modular design is beneficial i…

Texas solar and batteries break records, stabilize grid during high-demand periods. Renewable energy sources prove cost-effective and reliable compared to gas power plants. #climatechange #climatesolutions

Solar and batteries had a record-setting, grid-stabilizing summer in Texas
Solar has set 17 power generation records in Texas so far this year, shoring up the grid alongside batteries as some gas plant developers step back.

"Morocco tests floating solar panels to save water, generate power"
#Morocco #SolarPower #Energy #Renewables

Morocco tests floating solar panels to save water, generate power
Sun-baked Morocco, grappling with its worst drought in decades, has launched a pilot project aimed at slowing water evaporation while simultaneously generating green energy using floating solar panels.

Ampion revolutionizes solar power accessibility with new cross-state service, promising savings and clean energy for all. #climatechange #climatesolutions #climate

Company reveals incredible service to deliver new-age energy sources across state lines: 'Accessible everywhere, for everyone'
Ampion has announced an impressive advancement in its community's solar power service.

Coronal mass ejection arrival forecasting with the drag-based assimilation of satellite observations
Zaina Abu-Shaar, Tatiana Podladchikova, Astrid M. Veronig, Mateja Dumbovic, Stefan J. Hofmeister
https://arxiv.org/abs/2509.25377

Coronal mass ejection arrival forecasting with the drag-based assimilation of satellite observations
Forecasting the arrival of coronal mass ejections (CMEs) is vital for protecting satellites, power systems, and human spaceflight. We present HELIOPANDA: Heliospheric Observer for Predicting CME Arrival via Nonlinear Drag Assimilation, a framework that integrates the Drag-Based Model (DBM) with spacecraft observations using iterative parameter estimation and Kalman filter assimilation. We introduce a method for estimating the solar wind speed $w$ and drag parameter $γ$, two key but usually unk…

Trump’s newly signed tax and spending law, eviscerated Biden-era incentives for clean technologies such as wind and solar power.
Now Democrats aim to flip the usual partisan energy debate
by portraying Republicans as the party of electricity shortages and rising prices.
Their targets would include the moderate Republicans who spent months urging Congress to preserve the Biden tax breaks because of their projected economic gains for GOP-held districts
— only to fold a…

Impact of Solar Integration on Grid Security: Unveiling Vulnerabilities in Load Redistribution Attacks
Praveen Verma, Di Shi, Yanzhu Ye, Fengyu Wang, Ying Zhang
https://arxiv.org/abs/2509.13567

Impact of Solar Integration on Grid Security: Unveiling Vulnerabilities in Load Redistribution Attacks
Load redistribution (LR) attacks represent a practical and sophisticated form of false data injection (FDI) attacks, where the attacker manipulates grid data to influence economic operations of the grid through misleading security constrained economic dispatch (SCED) decisions. Traditionally, LR attack models operate under the assumption that generator measurements are secure and immune to tampering. However, the increasing integration of solar generation into power grids challenges this assump…

"One quiet change is about to let you export much more solar"
#Australia #Energy #SolarPower #Renewables

One quiet change is about to let you export much more solar
It doesn’t sound big. But this humble new set of rules will make it possible for many Australian households to export a lot more solar – and help the power grid .

Harnessing the power of the sun to boost agriculture in California's Central Valley. #climatechange #climatesolutions #climate

Farming and solar power complement each other in California’s Central Valley
Farmers and landowners are finding new ways to protect farmland and food security while supporting clean energy.

Universal power-law distribution functions in an electromagnetic kinetic plasma: implications for the inverted temperature profile in the solar corona
Uddipan Banik, Amitava Bhattacharjee
https://arxiv.org/abs/2508.08361

Universal power-law distribution functions in an electromagnetic kinetic plasma: implications for the inverted temperature profile in the solar corona
We develop a self-consistent quasilinear theory for the relaxation of electromagnetic kinetic plasmas, and demonstrate that the mean distribution functions of both electrons and ions tend to relax to a universal $v^{-5}$ tail. Large-scale electromagnetic (EM) fields efficiently accelerate the unscreened, fast particles but not the screened, slow ones. This non-thermal tail may arise in the solar corona from EM turbulence despite collisions, allowing suprathermal particles to escape the sun's gr…

Bill McKibben: Cheap solar could disrupt Big Oil's dominance. Climate activists must push for renewable energy to combat inequality and fight the climate crisis. #climatechange #climatesolutions #climate

Bill McKibben says cheap solar could topple Big Oil’s power
The veteran activist says that solar has finally scaled to the size of the climate crisis – and he’s organizing a nationwide “Sun Day” this weekend to promote clean energy.

Activity-Cycle Variations of Convection Scales in Subsurface Layers of the Sun
Alexander V. Getling, Alexander G. Kosovichev
https://arxiv.org/abs/2508.12465 https://

Activity-Cycle Variations of Convection Scales in Subsurface Layers of the Sun
We use subsurface-flow velocity maps inferred by time--distance helioseismology from Doppler measurements with the Helioseismic and Magnetic Imager (HMI) of the Solar Dynamics Observatory (SDO) to investigate variations of large-scale convection during Solar Cycles 24 and 25 in the 19-Mm-deep layer. The spatial power spectra of the horizontal-flow divergence reveal well-defined characteristic scales of solar supergranulation in the upper 4 Mm layer, while the giant-cell scale is prominent below…

Introducing the world's first self-charging tender powered by the sun! Sunpower Yachts International unveils the Solar-eJET 3.3m, designed for solar-equipped yachts to enhance energy independence for auxiliary craft. #climatechange #climatesolutions

World's first self-charging tender that harnesses sun's power debuts
The Solar-eJET 3.3m is the world's first inflatable tender that recharges directly from a yacht's solar system.

Can utilities replace power lines with solar and batteries in remote areas? The rise of microgrids offers a promising solution for communities looking to reduce costs and carbon footprint. #climatechange #climatesolutions

Can utilities replace power lines with solar and batteries in remote areas?
Expanding the grid to reach far-flung customers can be a costly fire hazard. So utilities like PG&E are testing out microgrids using solar, batteries, and…

US universities leading the way in sustainable energy with new solar project. Another step forward towards a clean energy future. #climatechange #climatesolutions #climate

US universities announce massive project that could transform how we power our schools: 'Another step forward'
Connecticut's CSCU just launched a huge solar project expected to save millions.

Join climate activists in the US for Sun Day, a national day of action celebrating solar power and energy efficiency growth. #climatechange #climatesolutions #climate

‘Sun Day’: Climate Activists To Rally For Clean Energy Amid Trump Attacks
"Some 450 events are planned across the US this Sunday to celebrate growth of solar power and energy efficiency"

"US solar plant construction is on a record-breaking spree — for now"
#US #USA #America #SolarPower

US solar plant construction is on a record-breaking spree — for now
Solar power is having a bumper year as developers race to complete installations before Trump's policy changes pull the rug out from under the industry.

"Solar and batteries break records, stabilize Texas grid through scorching summer"
#US #USA #America #Texas

Solar and batteries had a record-setting, grid-stabilizing summer in Texas
Solar has set 17 power generation records in Texas so far this year, shoring up the grid alongside batteries as some gas plant developers step back.

New partnership brings clean energy and lower costs to businesses in the southern Philippines. A step towards a greener future for all! #climatechange #climatesolutions #climate

New partnership could slash energy costs for crucial businesses: 'Hopefully a sign for much more'
Businesses in the southern Philippines have secured an 8.4-megawatt renewable power contract, all without paying anything upfront.

Palmetto's LightReach leasing service offers a game-changing way to save on energy bills and reduce pollution. Join the movement towards a greener future. #climatechange #climatesolutions #climate

Does rooftop solar feel out of reach? This game-changing subscription service offers installations for $0 down
If you think that the hefty savings of home solar power aren't worth the cost and effort of installation, then good news: there's a way to access those savings without needing to buy a single piece of equipment, thanks to the innovative leasing service from Palmetto.

"How Switzerland’s Solar Train Tracks Could Reshape Renewable Energy"
#Switzerland #Trains #SolarPower #Energy

How Switzerland’s Solar Train Tracks Could Reshape Renewable Energy | Happy Eco News
Switzerland is testing solar train tracks to generate clean energy using unused rail space. These removable panels could power 300,000 homes, create jobs, and reduce land use. Countries like South Korea and Japan are watching closely. If successful, the system could offer a new way to meet global energy demands.Switzerland is testing solar train tracks to generate clean energy using unused rail space. These removable panels could power 300,000 homes, create jobs, and reduce land use. Countries …

Cut your cooling costs and reduce pollution with solar energy! Learn how to save money and the planet in the long run. #climatechange #climatesolutions #climate

Government analysis reveals projected increases in home cooling costs — here's how to beat quickly rising utility prices
As millions of homeowners watch their electricity bills rise with the blazing temperatures, experts have a recommendation to keep costs low — create a personal power plant with solar energy.

"Iraq inaugurates first phase of largest solar plant to date"
#Iraq #SolarPower #Energy #Renewables

Iraq inaugurates first phase of largest solar plant to date
The first phase of the Karbala solar power plant, totaling 22 MW, is now online. Its capacity is expected to reach 75 MW within the next two moves, ahead of a final 300 MW target.

EcoFlow's Ocean Pro outperforms Tesla's Powerwall with more power, flood resistance, and energy monitoring capabilities. A game-changer in whole-home energy solutions. #climatechange #climatesolutions

EcoFlow says its new Ocean Pro is better than Tesla’s Powerwall
The new Ocean Pro home battery system claims more storage, higher solar support, and better smart home features than Tesla’s Powerwall.

China leads in solar and wind power rollout, outpacing other countries. Europe excels in per capita generation. Domestic clean energy rollout and high-income country financing key. Progress evident globally. #climatechange #climatesolutions

Which countries are scaling solar and wind the fastest?
The leaderboard is quite different depending on what metric you look at.