György Varga

Particle size and shape enthusiast. Tweets on windblown mineral dust and dust deposits, Central European loess, Saharan dust outbreaks and global dust.

[György Varga @eoliandust]

#dust #solarenergy #RenewableEnergy @sciencedirect

[György Varga @eoliandust]

🎉 Our paper “The shadow of the wind” is out in Renewable Energy!

We show that Saharan dust storms cut PV output in the Mediterranean by 25–40% on avg., >50% in extremes.
Better real-time dust monitoring & forecasts are key for grid reliability.

https://t.co/innA0Cz6OW

[György Varga @eoliandust]

About our “The shadow of the wind” paper in @pvmagazine

https://t.co/nNRk3fcqAL

[György Varga @eoliandust]

📊 Forecast errors are systematic:
•🇵🇹 & 🇪🇸: PV output underestimated by ~15%
•🇮🇹 & 🇬🇷: PV output overestimated by ~10%
→ Current models struggle with aerosol–cloud interactions.

[György Varga @eoliandust]

🎉 Our paper “The shadow of the wind” is out in Renewable Energy!

We show that Saharan dust storms cut PV output in the Mediterranean by 25–40% on avg., >50% in extremes.
Better real-time dust monitoring & forecasts are key for grid reliability.

https://t.co/innA0Cz6OW

[György Varga @eoliandust]

🔎 We analyzed 2019–2023 data from 🇵🇹🇪🇸🇫🇷🇮🇹🇬🇷.
#Dust storms reduced solar irradiance both via direct absorption/scattering AND increased cirrus cloud formation — a double hit to PV efficiency.

[György Varga @eoliandust]

The Shadow of the Wind: dust?

What causes the wind to cast a shadow? In Zafón's world, the "wind" is an image of time and oblivion. What is not written down is blown away by the wind and disappears.
This is our perspective: https://t.co/innA0CyyZo

[György Varga @eoliandust]

In our new article, we examined four years (2020–2023) of PV production and forecasting in Hungary, with a special focus on the day-ahead forecast errors experienced during Saharan dust storm events.
@ElsevierEnergy #dust #solarenergy

https://t.co/qWUstDMWfg

[György Varga @eoliandust]

More in our new (in prep) paper on relationship of Saharan dust, PV generation and forecast, and clouds…

[György Varga @eoliandust]

Episode from March 2021: huge Saharan dust event, huge deficit in PV generation, huge day-ahead forecast error…

[György Varga @eoliandust]

Episode from March 2021: huge Saharan dust event, huge deficit in PV generation, huge day-ahead forecast error…

[György Varga @eoliandust]

Our paper on relationships of photovoltaic forecast errors and Saharan #dust (published in Renewable and Sustainable Energy Reviews) is now freely available! #openaccess @ElsevierEnergy
https://t.co/UkaZ1TaGTM

[György Varga @eoliandust]

Saharan dust - cloud interactions (and effects on PV energy generation)

[György Varga @eoliandust]

Our paper on relationships of photovoltaic forecast errors and Saharan #dust (published in Renewable and Sustainable Energy Reviews) is now freely available! #openaccess @ElsevierEnergy
https://t.co/UkaZ1TaGTM

[György Varga @eoliandust]

@simon_sat @CopernicusEU @esa @ESA_EO Lake Balaton, Hungary

[György Varga @eoliandust]

@gresifruzsi

[Maarten Keulemans @mkeulemans]

I’m a Dutch science journalist, and I watched @climatethemovie.

It’s full of crap. 😂

Here’s my step-by-step walkthrough, translated by popular request! 👍

Enjoy the ride! 🧵

[György Varga @eoliandust]

@ElsevierEnergy Effects of Saharan dust storms on photovoltaic energy production forecast
Varga et al. (2024)
https://t.co/rQOeyjANO7

[György Varga @eoliandust]

@Dust_Barcelona @WMO @AEMET_Esp @BSC_CNS @UNCCD @xqcgeo @ECuevasAgullo @SaraBasart Gyuri’s comments /3/

Increased frequency and intensity of Saharan dust events

https://t.co/UfHFuyefcg

[György Varga @eoliandust]

@Dust_Barcelona @WMO @AEMET_Esp @BSC_CNS @UNCCD @xqcgeo @ECuevasAgullo @SaraBasart Gyuri’s comments /4/

https://t.co/IIlbWOvIQ3

[György Varga @eoliandust]

@Dust_Barcelona @WMO @AEMET_Esp @BSC_CNS @UNCCD @xqcgeo @ECuevasAgullo @SaraBasart Gyuri’s comments /2/

https://t.co/rQOeyjANO7

[György Varga @eoliandust]

@Dust_Barcelona @WMO @AEMET_Esp @BSC_CNS @UNCCD @xqcgeo @ECuevasAgullo @SaraBasart Gyuri’s comments /1/
photovoltaic forecasts and energy generation in Hungary

[György Varga @eoliandust]

@LuciaMonaIT @SaraBasart @BSC_CNS @Dust_Barcelona @WMO @SteliosKazadzis @cp_garcia_pando @v_amiridis Same in Central Europe

https://t.co/0oh6ByknT3

[György Varga @eoliandust]

@Dust_Barcelona @WMO @AEMET_Esp @BSC_CNS @UNCCD @xqcgeo @ECuevasAgullo @SaraBasart @ipma_pt @meteofrance