Carlos Rossa

Wow. I didn't know that.

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.

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.
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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.

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. 🧪

Finally, the upscale effect of wind speed losses was further confirmed by CFD simulations of an entirely floating PV plant by a new study.
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www.sciencedirect.com/science/arti...

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...

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! 😁
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www.pv-magazine.com/2026/01/13/s...

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 …

The target matters: insightful research on how to properly communicate climate change to a wider audience.
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www.sciencedirect.com/science/arti...

At this point, the coffin is already covered in nails.
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eu.usatoday.com/story/news/p...

Totally agree!

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.
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www.nature.com/articles/s41...

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.

​We are witnessing a major, unstoppable shift, and to ignore this is to look elsewhere.
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www.nature.com/articles/d41...

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...

The Chinese manufacturer LONGi is making it again. Well done!
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www.pv-magazine.com/2025/11/26/l...

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...

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.
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www.pv-magazine.com/2025/11/20/l...

Transfer learning for solar irradiation prediction in Minas Gerais, Brazil - Scientific Reports Scientific Reports - Transfer learning for solar irradiation prediction in Minas Gerais, Brazil

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.
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www.nature.com/articles/s41...

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…

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.
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www.sciencedirect.com/science/arti...

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...

Link for the paper 🔒
onlinelibrary.wiley.com/doi/10.1002/...

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...

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.
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www.pv-magazine.com/2025/11/12/s...

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...

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.
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wes.copernicus.org/articles/10/...

Coming back here 10 months after these two posts to bring some update.
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www.pv-magazine.com/2025/10/21/m...

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…

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.
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www.sciencedirect.com/science/arti...

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.

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
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www.nature.com/articles/d41...

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.

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.
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link.springer.com/article/10.1...

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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...

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.

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?

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?

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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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".

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

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.