Carlos Rossa
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carlosrossa.bsky.social
Carlos Rossa
@carlosrossa.bsky.social
Physicist
PhD in photovoltaic systems
Researcher
Climate change
Solar Energy
Beatles
Nature Portfolio: https://www.nature.com/articles/s44172-023-00119-7
my book: https://tinyurl.com/carlosrossa
LinkedIn: https://tinyurl.com/incarlosrossa
Born 🇧🇷
Living 🇪🇸
Pinned
Inaugurando por aqui com o meu filho predileto até o momento.
Perdas de energia em geradores fotovoltaicos devido ao incremento da velocidade do vento. É a primeira vez que se observa esse fenômeno fundamental e contraintuitivo a grande escala, em geradores fotovoltaicos.
Energy losses in photovoltaic generators due to wind patterns - Communications Engineering
Carlos Rossa reports measurements exploring the impact of wind speed on the performance of photovoltaic modules. Data reveal that wind speed can increase the temperature dispersion in a module field, ...
www.nature.com
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/...
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...
wes.copernicus.org
October 31, 2025 at 9:05 AM
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...
October 21, 2025 at 3:49 PM
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...
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…
www.sciencedirect.com
October 15, 2025 at 11:28 AM
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...
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.
www.nature.com
October 14, 2025 at 3:45 PM
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...
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.
link.springer.com
October 10, 2025 at 8:46 PM
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Some dogs show behaviours towards their toys that resemble behavioural addictions in humans, such as gambling and internet gaming, according to a study of 105 dogs published in Scientific Reports. go.nature.com/4odqkFw 🧪
October 9, 2025 at 10:48 PM
The just-released IEA's Renewables 2025 report forecasts capacity will nearly double by 2030, but miss the COP28 target. Solar PV dominates growth (80%), with China leading the build-out. The USA forecast was cut significantly due to policy changes.
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www.iea.org/reports/rene...
www.iea.org
October 7, 2025 at 9:13 AM
The main commercial barrier to establishing perovskite modules is their operational stability. A new material could be the key: at least on a reduced scale, a 25.8% efficiency was achieved with unprecedented 1000h operational stability at 65∘C.
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advanced.onlinelibrary.wiley.com/doi/10.1002/...
Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells
Fluorene-functionalized spiro-phenothiazine (PTZ-Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small-area cells and 22.07% in 25 cm2 modules. Under ISOS-L3 condi...
advanced.onlinelibrary.wiley.com
October 6, 2025 at 9:10 AM
Interdecadal oscillations seem to be connected with dust storms around the world, with a cycle of 10-14 years.

A great contribution also for the PV science.
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www.sciencedirect.com/science/arti...
Interdecadal feature and mechanism of global dusty weather
Dusty weather (including dust storms, blowing dust and floating dust) represents a catastrophic weather phenomenon with extensive adverse environmenta…
www.sciencedirect.com
September 29, 2025 at 2:44 PM
The study for semi-arid regions claims a system that boosts floating solar panel energy output and saves 75% of water evaporation, offering a powerful and sustainable solution.
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www.sciencedirect.com/science/arti...
Integrated modeling of energy generation and water resource management utilizing floating photovoltaic (FPV) technology in semi-arid regions
This study proposes an integrated energy-water management framework employing Floating Photovoltaic (FPV) technology for deployment in semi-arid regio…
www.sciencedirect.com
September 19, 2025 at 1:37 PM
New advances in the analysis of soiling losses in photovoltaic plants due to wind patterns.
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www.sciencedirect.com/science/arti...
Wind speed profile model of the desert photovoltaic arrays
Accurate prediction of dust accumulation on photovoltaic (PV) modules is crucial for enhancing power generation forecasts in desert PV plants. The pro…
www.sciencedirect.com
September 17, 2025 at 7:59 AM
My team and I are heading to @eupvsec.org next week in Bilbao, Basque Country, Spain. You're invited to check out what we've been doing with shadows and 3D backtracking. Hope to see you there!
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September 16, 2025 at 12:34 PM
Rooftop photovoltaic panels are an effective urban heatwave mitigation strategy. They significantly reduce the urban heat island effect and improve human thermal comfort by lowering city temperatures, particularly in the afternoon, according new study.
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www.sciencedirect.com/science/arti...
Influence of urban rooftop photovoltaic deployment on thermal environment during a heatwave event in complex terrain
This study investigates the influence of rooftop photovoltaic panels (RPVPs) on the thermal environment during a heatwave event in Lanzhou, a complex …
www.sciencedirect.com
September 15, 2025 at 5:37 PM
Um dia histórico.
Que o Brasil sirva de norte ao resto do mundo.
Democracia sempre.
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September 11, 2025 at 10:35 PM
Saharan dust can cut PV power generation by 25-40% by blocking sunlight directly and by forming reflective cirrus clouds that bounce solar radiation back into space.
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www.sciencedirect.com/science/arti...
The shadow of the wind: the impact of Saharan dust on photovoltaic power generation in the Mediterranean
The increasing frequency and intensity of Saharan Dust Events (SDEs) in Europe poses a significant challenge to the reliability of photovoltaic (PV) e…
www.sciencedirect.com
September 8, 2025 at 10:45 AM
Global phenology maps reveal how precipitation and temperature drive seasonal asynchrony, affecting ecosystems and potentially accelerating evolution. The findings highlight key hotspots in tropical and Mediterranean regions.
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www.nature.com/articles/s41...
Global phenology maps reveal the drivers and effects of seasonal asynchrony - Nature
A global land surface phenology map predicts complex geographical discontinuities in flowering phenology, genetic divergence and harvest seasonality across a range of taxa.
www.nature.com
September 5, 2025 at 12:46 PM
In Northern Europe, an increase in future PV production is expected. Despite the temperature increase and lower albedo, the less frequent snow covering of the panels is the main factor favouring higher overall production.
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www.sciencedirect.com/science/arti...
Future PV production potential in Northern Europe under changing snow conditions: A multi-model assessment
Future changes in solar photovoltaic (PV) energy production potential in Northern Europe were assessed by utilising daily solar radiation, snow and te…
www.sciencedirect.com
September 4, 2025 at 4:39 PM
Solar energy seems to be more widely accepted than wind energy, as it is less politically polarised. This difference in public support can impact politics and hinder the expansion of technologies like wind energy.
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www.sciencedirect.com/science/arti...
Populism and support of onshore wind energy: Explaining different perspectives from the left and right
This study examines the relationship between political orientation and support of onshore wind energy, using demographically representative surveys of…
www.sciencedirect.com
September 3, 2025 at 12:41 PM
A new wind power system uses deep learning to group turbines by behaviour, not location. A special network learns time and spatial patterns, while a smart algorithm fine-tunes everything for the best forecast.
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www.sciencedirect.com/science/arti...
Short-term wind power prediction and optimization method based on clustering spatiotemporal fusion
In wind farms, the power output of individual wind turbines is influenced not only by meteorological factors but also by the interactions with other t…
www.sciencedirect.com
September 3, 2025 at 12:25 PM
Shifting rainfall patterns are increasing inequality in global grassland nitrogen cycles, with some regions gaining and others losing out, a disparity that underscores the importance of timely adaptation.
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www.nature.com/articles/s41...
Shifts in precipitation regimes exacerbate global inequality in grassland nitrogen cycles - Nature Communications
Shifts in precipitation regimes may exacerbate global inequality in grassland nitrogen cycles. Low- and middle-income countries are expected to experience greater losses, but timely adaptation measure...
www.nature.com
September 2, 2025 at 9:22 AM
This study correctly states that modules are cooled by heat exchange with water, not evapotranspiration from crops or floating PV systems as is usually assumed, which is also the mechanism expected to cool modules in agrivoltaic systems.

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www.sciencedirect.com/science/arti...
Research on floating photovoltaic heat exchange mechanism and coupling with hydrodynamic and water temperature model
The floating photovoltaic (FPV) industry has witnessed accelerated expansion globally, posing critical challenges for quantitative impact assessment o…
www.sciencedirect.com
September 1, 2025 at 10:19 AM
Climate change is triggering things that we're often unaware of. While we understand the importance of good maintenance and proper dimensioning, we rarely link the chain of events or the "butterfly effect" of something out of place.
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www.pv-magazine.com/2025/08/26/e...
Electrical fault at PV plant triggers forest fire in Spain
A forest fire in southern Spain that burned roughly 800 hectares of pasture, crops, and oak forests originated in an electrical box of a photovoltaic plant’s tracking system, according to the Civil Gu...
www.pv-magazine.com
August 27, 2025 at 8:00 AM
PV plants can potentially reduce near-surface wind speed, creating a stratified profile, responsible to increase dust over the PV panels. Related losses could be mitigated using low-profile sand barriers under panels and along dominant wind directions.
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www.sciencedirect.com/science/arti...
Wind field characteristics of photovoltaic arrays based on wind tunnel tests
The large-scale deployment of photovoltaic power stations in Northwest China’s desert regions significantly disturbs near-surface wind fields, posing …
www.sciencedirect.com
August 19, 2025 at 11:00 AM
The robustness of a floating PV system is largely dependent on climatology. A holistic consideration of all factors is relevant for a proper performance and feasibility estimation, as demonstrated by this new study
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link.springer.com/article/10.1...
Risk-informed multi-criteria assessment of dam reservoirs for floating photovoltaic farms in arid and semi-arid regions - Discover Sustainability
Floating Photovoltaic (FPV) farms have emerged as a rapidly advancing solar power technology, driven by land-use constraints and increasing global demand for sustainable energy solutions. This system ...
link.springer.com
August 15, 2025 at 1:31 PM
By 2050, PV waste will exceed 100 million panels, and that's just in the UK. While we have some recycling research and facilities, we need a lot more. The pile is just growing and growing.
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www.sciencedirect.com/science/arti...
Forecasting solar module waste in the United Kingdom
Photovoltaics play a key role in the United Kingdom (UK) meeting its net-zero targets. In this analysis, we draw on governmental datasets and projecti…
www.sciencedirect.com
August 14, 2025 at 10:09 AM