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Carlos Rossa

@carlosrossa.bsky.social
5.8K followers 490 following 924 posts

Physicist PhD in photovoltaic systems Scientist Climate change Solar Energy Beatles my book: tinyurl.com/carlosrossa LinkedIn: tinyurl.com/incarlosrossa Born 🇧🇷 Living 🇪🇸

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Carlos Rossa @carlosrossa.bsky.social · 29/09/2026
Exactly. That's the (missing) point. It's much more than just "promote renewables" as we've listened for years. Much more.
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Carlos Rossa @carlosrossa.bsky.social · 29/09/2026
The Brazilian geographer Milton Santos already argued that space is an active participant in economy and society. Fostering the energy transition is not enough; where it takes place matters. This recent Comment in @commssustain.nature.com is well worth a read. 🧪 🔌💡 www.nature.com/articles/s44...
nature.com
Ecologically accountable expansion of solar power - Communications Sustainability
Rapid solar photovoltaic deployment is essential for global decarbonization, but is often evaluated only against avoided fossil-fuel emissions and technology-level lifecycle emissions. Here we argue t...
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Carlos Rossa @carlosrossa.bsky.social · 25/09/2026
A few weeks ago, I saw a PS1 in a museum and had the strange sensation of getting old. But seeing the kinds of modules I used to work with being handled for a second-life application feels... different. 🧪 🔌💡 👴🏻 www.pv-magazine.com/2026/09/24/s...
pv-magazine.com
Second-life PV modules turned into solar balconies in Germany - pv magazine Global
A reuse project in Kassel, Germany, has repurposed 300 used solar modules to create 150 balcony PV systems, with tiered pricing aimed at improving affordability. The 13-year-old panels were inspected ...
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Carlos Rossa @carlosrossa.bsky.social · 14/09/2026
Baby you're a rich man (big scientific publisher owners). The fool on the hill (Under Review last update 8 months ago). 🧪 www.science.org/content/arti...
science.org
Need Help! writing a paper title? All you need is the Beatles
At least 3200 scientific publications refer to the Fab Four’s music—by far the most of any top-selling artist
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Carlos Rossa @carlosrossa.bsky.social · 11/09/2026
Another milestone for Longi. They clearly seem to be leading the PV R&D, covering everything from cell development to outdoor system behaviour, alongside academic collaborations. 🧪 🔌💡 www.pv-magazine.com/2026/09/10/l...
pv-magazine.com
Longi, Soochow University unveil 34.0% perovskite-silicon tandem solar cell based on dual-anchored interfacial design - pv magazine Global
Soochow University and Longi researchers developed a ZrO₂ interfacial strategy that reduces recombination and leakage while improving charge extraction in perovskite-silicon tandem solar cells. The re...
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Carlos Rossa @carlosrossa.bsky.social · 14/08/2026
A cool tool to visualize past and future solar eclipses from anywhere on Earth. Intuitive, complete, and immersive. 🧪 🔌💡 eclipses.bogachev.fr?sky=madrid-es
eclipses.bogachev.fr
Where the Shadow Fell · An Atlas of Solar Eclipses
11,898 solar eclipses, 2000 BCE to 3000 CE, on one globe. Name a city and the atlas works out its own record: when the shadow last fell there, and when it comes back.
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Carlos Rossa @carlosrossa.bsky.social · 13/08/2026
Before the numbers, papers, books, conferences, simulations, analysis, you had the simple contemplation of nature that led you to become a scientist. Don't forget it. Science is about that, contemplating before all of it. 🧪 🔌💡
Sunset over Madrid, Spain, with the Sun still partially blocked by the Moon.The diamond ring observed during the nearly total eclipse over Madrid—the red spot is a solar prominence.
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Carlos Rossa @carlosrossa.bsky.social · 07/08/2026
For history buffs: analyse the context of the image and guess the historical moment, including the year and location. Have a nice weekend! 🧪 wen-ware.com/play/
wen-ware.com
WenWare
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Carlos Rossa @carlosrossa.bsky.social · 17/06/2026
Solar PV's GHG mitigation potential across the EU varies 31-fold — and it's driven by grid carbon intensity, not sunshine. Sunny Spain and Portugal sit near the bottom precisely because their grids are already clean. 🧪 🔌💡 www.nature.com/articles/s44...
nature.com
Greenhouse gas mitigation potential of solar photovoltaics: a highly variable indicator within the European Union - npj Clean Energy
npj Clean Energy - Greenhouse gas mitigation potential of solar photovoltaics: a highly variable indicator within the European Union
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Carlos Rossa @carlosrossa.bsky.social · 08/06/2026
some people were right when they said in the future we would be ruled by robots.
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Carlos Rossa @carlosrossa.bsky.social · 08/06/2026
The assessed 210 TikTok videos from 21 popular science accounts. Most creators hold degrees in their field. Most never cite a verifiable source. Credentials ≠ scientific communication. Worth a reading if you're in scientific communication. 🧪 jcom.sissa.it/article/pubi...
jcom.sissa.it
Scrolling through science: how accurate is science content on TikTok
TikTok has become a popular platform for science communication, particularly among younger audiences, allowing creators to reach broader audiences. However, concerns about the accuracy of science cont...
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Carlos Rossa @carlosrossa.bsky.social · 28/05/2026
I think this is the best way to maintain high standards in scientific publication, avoid research group biases, and exchange ideas from scratch. Collaborative science as it should be. Could this be another major change in how scientific knowledge is shared? 🧪 www.nature.com/articles/d41...
nature.com
Nature is expanding Registered Reports to all the fields in which we publish
Registered Reports improve the credibility of scientific claims by rewarding big questions, sound methods and solid analyses. They need to become a standard tool in research.
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Carlos Rossa @carlosrossa.bsky.social · 05/05/2026
A typical unit of measurement used in the south of Brazil is called "Porto Alegre", with that typical and lovely accent. "Cabem duuuas Porto Alegre" always fits for anyone there who needs to know how large an area is. How many Porto Alegre would fit inside the largest PV plant in the world? 🧪 🔌💡
Gonghe Talatan power plant, in China. 
In the image you can see an arid zone, with the PV plant covering almost the entire picture, with a huge lake on the right. Printscreen from Google earth. Porto Alegre, Brazil, and the cities around it, in a same scale. Both Porto Alegre and gonghe talatan are seen from about 60 km high. 
Printscreen from Google earth.
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Carlos Rossa @carlosrossa.bsky.social · 04/05/2026
An increasingly dusty atmosphere is threatening public health, renewable energy, and many other relevant sectors in our society. It is already going beyond dusty environments, and it is going to get worse. 🧪 🔌💡 www.nature.com/articles/d44...
nature.com
Dust storms cloud North Africa’s clean air ambitions
As cities and the use of solar power expands, dust storms pose a growing risk to energy performance, air quality and economic planning.
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Carlos Rossa @carlosrossa.bsky.social · 14/04/2026
Much better indeed. PV (power) plants. It's not usual to hear people who work on PV calling them PV farms. I mean, it exists but it's not usual.
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Carlos Rossa @carlosrossa.bsky.social · 14/04/2026
PV plants act like cool islands, decreasing temperatures in arid lands by as much as 3.1°C. Complex shapes help hot-zone plants but may harm cold ones. The study provides vital eco-design rules for climate-specific solar deployment. 🧪 🔌💡 www.sciencedirect.com/science/arti...
sciencedirect.com
Quantifying photovoltaic power plant–induced cool island effect and vegetation response in arid regions
Large-scale photovoltaic (PV) deployment in arid lands is vital for decarbonisation, yet PV-induced cool island effect (CIE) and its ecological conseq…
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Carlos Rossa @carlosrossa.bsky.social · 06/04/2026
Artemis II is approaching the Moon right now. 🧪 🚀🧑‍🚀🌔 www.youtube.com/live/6RwfNBt...
youtube.com
NASA's Artemis II Live Views from Orion
YouTube video by NASA
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Carlos Rossa @carlosrossa.bsky.social · 31/03/2026
A team from the Federal University of Santa Catarina (UFSC) found that 23-year-old PV modules still retain more than 87% of their initial power. This is good news for the circular economy and broad access to electricity. 🧪 🔌💡 www.sciencedirect.com/science/arti...
sciencedirect.com
Second-Life Photovoltaics in Practice: Performance Results from a Brazilian Case
The rapid growth of photovoltaic (PV) energy generation has raised concerns about premature module replacement and the resulting increase in waste wit…
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Carlos Rossa @carlosrossa.bsky.social · 23/03/2026
Two worlds that are actually branches of the same tree. Solar PV has been part of this symbiosis for years. Indeed, we haven't referred to solar PV as merely 'another alternative energy source' for over a decade. 🧪 🔌💡
elsevier.com
10+1 rules for improving academia-industry collaboration in R&D ┃ Elsevier Connect
10+1 practical rules to strengthen academia-industry R&D collaboration, overcome mistrust, and drive innovation, funding, and real-world impact.
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Carlos Rossa @carlosrossa.bsky.social · 06/03/2026
Wow. I didn't know that.
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Carlos Rossa @carlosrossa.bsky.social · 06/03/2026
This week, Saharan dust has been drifting across the Iberian Peninsula. You’ve likely heard about PM2.5/10 particles-their impact on PV panels or the respiratory issues etc. But how tiny are they really? Enough to fill the spaces between fingerprints' ridges. 🧪 🔌💡
Detailed fingerprint, without dust. Detailed fingerprint, with dust between ridges. The setting sun in Madrid, Spain. The sun appears round behind some clouds, with the sky a bit white, hazy. There are some trees between the observer and the sun.
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Reposted by Carlos Rossa
Nature Portfolio @natureportfolio.nature.com · 18/02/2026
Human‑induced climate change may have intensified the mechanisms behind the 2024 flash floods in Valencia, Spain, according to a modelling study published in Nature Communications. 🧪
go.nature.com
Human-induced climate change amplification on storm dynamics in Valencia’s 2024 catastrophic flash flood - Nature Communications
This study reveals how climate change altered storm dynamics during the 2024 Valencia floods. Warmer seas fueled stronger updrafts, increasing rainfall intensity by 20% and significantly amplifying flood severity.
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Carlos Rossa @carlosrossa.bsky.social · 03/02/2026
Finally, the upscale effect of wind speed losses was further confirmed by CFD simulations of an entirely floating PV plant by a new study. 🧪 🔌💡 www.sciencedirect.com/science/arti...
sciencedirect.com
Boundary-layer parameterization for assessing temperature and evaporation in floating photovoltaics at the utility-scale
A precursor model for parameterizing the effects of photovoltaic powerplants on the atmospheric boundary layer is developed using computational fluid …
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Carlos Rossa @carlosrossa.bsky.social · 14/01/2026
Let’s see if the mass production of copper-based solar cells, recently announced by LONGi, will lead us somewhere. At least we won't be competing with the jewelry industry anymore! 😁 🧪 🔌💡 www.pv-magazine.com/2026/01/13/s...
pv-magazine.com
Solar module prices lagging behind soaring silver costs
Solar manufacturers are facing rising cost pressure as silver paste now accounts for up to 30% of total cell production costs. OPIS analyst Hanwei Wu tells <b>pv magazine</b> that module producers cu...
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Carlos Rossa @carlosrossa.bsky.social · 08/01/2026
The target matters: insightful research on how to properly communicate climate change to a wider audience. 🧪 www.sciencedirect.com/science/arti...
sciencedirect.com
Who do we trust on climate change, and why?
Trust in climate communicators is a critical determinant of whether the public accepts and acts upon climate change information. Yet most research to …
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Carlos Rossa @carlosrossa.bsky.social · 17/12/2025
At this point, the coffin is already covered in nails. 🧪 eu.usatoday.com/story/news/p...
eu.usatoday.com
Trump moves to dismantle major US climate research center in Colorado
The Trump administration is breaking up the National Center for Atmospheric Research, taking aim at one of the world's leading climate research labs.
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Carlos Rossa @carlosrossa.bsky.social · 16/12/2025
Totally agree!
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Carlos Rossa @carlosrossa.bsky.social · 16/12/2025
Events of extreme low energy production are expected to increase even in optimistic climate change scenarios, affecting at least one-third of regions. In this context, PV stands out as the most reliable renewable energy source, provided that climate goals are met. 🧪 🔌💡 www.nature.com/articles/s41...
nature.com
Rising worldwide challenges to climate-induced extreme low-production events of photovoltaic and wind power - Nature Communications
This work shows that climate change is projected to unevenly intensify extreme low-production events in solar and wind power systems worldwide, highlighting the need for mitigation and adaptation to e...
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Carlos Rossa @carlosrossa.bsky.social · 15/12/2025
​We are witnessing a major, unstoppable shift, and to ignore this is to look elsewhere. 🧪 🔌💡 www.nature.com/articles/d41...
nature.com
China accounts for more than half of leading output in the applied sciences
The first Nature Index table on the field shows how research in the East is focused on industrial strategy.
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Carlos Rossa @carlosrossa.bsky.social · 26/11/2025
The Chinese manufacturer LONGi is making it again. Well done! 🧪 🔌💡 www.pv-magazine.com/2025/11/26/l...
pv-magazine.com
Longi achieves 33.35% efficiency for flexible perovskite-silicon tandem solar cell
The Chinese manufacturer said the tandem device was developed through a dual-buffer layer strategy that improves interfacial adhesion while preserving efficient charge extraction. The efficiency resul...
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Carlos Rossa @carlosrossa.bsky.social · 20/11/2025
In a recent article published in Nature, scientists from LONGi have revealed how they achieved the record efficiency in a single PV cell. They have been successfully breaking the world efficiency record year by year—their own record, by the way. 🧪 🔌💡 www.pv-magazine.com/2025/11/20/l...
pv-magazine.com
Longi reveals details of world’s most efficient silicon solar cell
In a new scientific paper, the Chinese solar manufacturer explained that the 27.81%-efficient hybrid interdigitated back-contact cell it unveiled in April is based on passivated tunneling contacts and...
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Carlos Rossa @carlosrossa.bsky.social · 18/11/2025
A study in Brazil's Minas Gerais (a region bigger than Spain or France) shows Transfer Learning is enabled by neighbouring station data to predict solar irradiation in data-scarce areas, despite that same data being unhelpful for existing local models. 🧪 🔌💡 www.nature.com/articles/s41...
nature.com
Transfer learning for solar irradiation prediction in Minas Gerais, Brazil - Scientific Reports
Scientific Reports - Transfer learning for solar irradiation prediction in Minas Gerais, Brazil
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Carlos Rossa @carlosrossa.bsky.social · 14/11/2025
This study unveils a hitherto underestimated dust effect: the thermal loss in PV panels is disproportionately governed by the chemical composition of the settled particles, not just their mass. 🧪 🔌💡 www.sciencedirect.com/science/arti...
sciencedirect.com
Unveiling the role of chemical composition in dust-induced degradation of radiative cooling surfaces
Radiative cooling offers a zero-energy pathway to meet global cooling demands. However, its deployment is critically hampered by performance degradati…
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Carlos Rossa @carlosrossa.bsky.social · 13/11/2025
Link for the paper 🔒 onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Self‐Thermometry of PV Modules: Shift‐Factor Approach Compared to Sandia, Faiman, and IEC 60904‐5 Models
The proposed shift-factor equation couples the independent variations of PV module's output voltage with respect to irradiance and module temperature. From the coupled voltage distribution, one can e...
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Carlos Rossa @carlosrossa.bsky.social · 13/11/2025
UAE researchers achieved a sensorless approach to monitor PV panel temperature. Their novel model accurately estimates module operating temperature using only the open-circuit or maximum power point voltage, eliminating the need for physical sensors. 🧪 🔌💡 www.pv-magazine.com/2025/11/12/s...
pv-magazine.com
Sensorless approach for PV panel temperature monitoring
Researchers in United Arab Emirates have developed a novel model that relies on either the open-circuit voltage or the maximum power point voltage to estimate PV module operating temperature without u...
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Carlos Rossa @carlosrossa.bsky.social · 31/10/2025
A terrain with only a few meters of variation is enough to boost wind speed at the lower zone. It occurs via the vertical displacement of the Low-Level Jet, a phenomenon observed and quantified in an operational wind power plant. 🧪 🔌💡 wes.copernicus.org/articles/10/...
wes.copernicus.org
Influence of simple terrain on the spatial variability of a low-level jet and wind farm performance in the AWAKEN field campaign
Abstract. In wind energy research, scientific challenges are often associated with complex terrain sites, where orography, vegetation, and buildings disrupt flow uniformity. However, even sites charac...
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Carlos Rossa @carlosrossa.bsky.social · 21/10/2025
Coming back here 10 months after these two posts to bring some update. 🧪 🔌💡 www.pv-magazine.com/2025/10/21/m...
pv-magazine.com
Mercedes unveils car with 20% efficient ultra-thin solar coating
Mercedes-Benz unveiled its first car prototype with a silicon-free, 20%-efficient nanoparticle solar coating that powers the vehicle even when off and uses modules thinner than a human hair.
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Carlos Rossa @carlosrossa.bsky.social · 15/10/2025
Understanding the dust impact on PV systems in the Sudano-Sahelian region (Burkina Faso). The detailed analysis shows power cuts of up to 35% at 20 g/m2. The accumulation rate is high at ~40 g/m2 per day. High winds offer crucial natural cleaning. 🧪 🔌💡 www.sciencedirect.com/science/arti...
sciencedirect.com
Analyses of the dust influence on individual efficiencies of the silicon PV module in Sudano-Sahelian conditions
The evaluation of degradation caused by dust accumulation on photovoltaic (PV) systems is critical to ensuring optimal energy exploitation in the Sahe…
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Carlos Rossa @carlosrossa.bsky.social · 14/10/2025
This isn't the usual topic I post about here, but it's a really interesting subject nonetheless—both for future researchers and current lab leads. Mental health truly matters. Recently published on @natureportfolio.nature.com 🧪 www.nature.com/articles/d41...
nature.com
27 things we wish we’d known when we started our PhDs
Nature’s survey of PhD candidates reveals hard-won wisdom on choosing supervisors, managing mental health and surviving academic culture.
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Carlos Rossa @carlosrossa.bsky.social · 10/10/2025
Monocrystalline silicon solar cells hit 50–60% efficiency at 30–50 K, beating the Shockley–Queisser limit by suppressing thermal losses. This could potentially power future lunar mining robots and deep-space probes. 🧪 🔌💡 link.springer.com/article/10.1...
link.springer.com
Surpassing Shockley–Queisser Efficiency Limit in Photovoltaic Cells - Nano-Micro Letters
The Shockley–Queisser (S-Q) model sets a theoretical limit on the power conversion efficiency (PCE) of single-junction solar cells at around 33%. Recently, a PCE of 50%-60% was achieved for the first time in n-type single-junction Si solar cells by inhibiting light conversion to heat at low temperatures. Understanding these new observations opens tremendous opportunities for designing solar cells with even higher PCE to provide efficient and powerful energy sources for cryogenic devices and outer and deep space explorations.
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Carlos Rossa @carlosrossa.bsky.social · 09/10/2025
🐾🐾 🐕 🧪
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Carlos Rossa @carlosrossa.bsky.social · 09/10/2025
Just prove your point, "fact checker." Seeing images doesn't make you a specialist on climate or whatever you claim to be. Thank goodness people are not throwing away their PV panels to install nuclear reactors in their houses instead. Based on your logic...
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Carlos Rossa @carlosrossa.bsky.social · 09/10/2025
Your vision is limited by the whole thing. Or, if this is the problem, we could keep burning fossil fuels until we find another energy source. Just don't be a troll and be more respectful of people you don't know. Don't be a dead weight on the earth spreading a fool's opinion.
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Carlos Rossa @carlosrossa.bsky.social · 09/10/2025
Consider the ratio of power to land required. For example, a wind generator is better than solar. But it's not just a matter of how much power is produced, and you know it. Nuclear? Yes, it's intermittent, occupies less land, etc. But what about the costs? The wastes?
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Carlos Rossa @carlosrossa.bsky.social · 09/10/2025
You've been ignoring the core of the question since the beginning. You had to prove your point, but you couldn't. We all know this is not propaganda; it's science. You believe the opposite, but you can't prove it. You just bring images, or in other words, it's just your opinion. Where is the proof?
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Carlos Rossa @carlosrossa.bsky.social · 09/10/2025
He won't. But, just in case, he should have the opportunity to show it for a bigger audience like the science and energy sky feed. People who, according to him, reproduce wind and solar propaganda like parrots. His moment to prove that all of us are wrong. 🧪 🔌💡
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Carlos Rossa @carlosrossa.bsky.social · 08/10/2025
By the way, the onus of the proof is yours. With numbers, real science. Not photos, opinions, outliers. By the way, even wind people say something about the ratio power/land against solar PV. The difference is that they're just kidding, not being a fool like you and your "big knowledge".
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Carlos Rossa @carlosrossa.bsky.social · 08/10/2025
Really? Your point is to compare energy production with... Nuclear? Why are you supposing that me or anyone here who works with PV doesn't know these numbers? How long does it take you to make this big discovery, about energy production? I was expecting something else from you. How disappointing
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Carlos Rossa @carlosrossa.bsky.social · 08/10/2025
The onus of the proof is yours. You're saying all wind and solar stuff is propaganda. But rather than explain it to me, publish it through a specialized publication. This way your assumption could gain some credibility. Otherwise, it's just faith, and faith is nothing more than your own opinion.
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Carlos Rossa @carlosrossa.bsky.social · 08/10/2025
Yes it is. This is why people are still researching it, bringing solutions rather than trolling everyone. This is how science works, if you don't know. There are plenty of advances all day being published, including in recycling. If you don't agree, again, bring a solution better than this one.
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