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  • Open Access
Energies2025, 18(24), 6539;https://doi.org/10.3390/en18246539 
(registering DOI)

13 December 2025

This paper develops a compact and scalable mathematical model of an AC circuit with an uncontrolled diode bridge rectifier, formulated using dimensionless variables. The model captures the joint influence of supply inductance, resistance, and load pa...

  • Article
  • Open Access
Energies2025, 18(24), 6534;https://doi.org/10.3390/en18246534 
(registering DOI)

13 December 2025

The high energy consumption characteristics across all segments of the agricultural supply chain, coupled with rural areas’ excessive reliance on traditional power grids and fossil fuel-based energy supply models, not only result in persistentl...

  • Review
  • Open Access
Energies2025, 18(24), 6538;https://doi.org/10.3390/en18246538 
(registering DOI)

13 December 2025

The chemical looping steam methane reforming (CL-SMR) process is an efficient and low-carbon hydrogen production technology. It enables high-efficiency methane conversion and inherent CO2 separation through the cyclic utilization of oxygen carriers....

  • Article
  • Open Access

Electricity Price Volatility and the Performance of Machine Learning Forecasting Models in European Energy Markets

  • Alicja Ganczarek-Gamrot,
  • Anna Gorczyca-Goraj,
  • Karol Pilot and
  • Krzysztof Kania
Energies2025, 18(24), 6535;https://doi.org/10.3390/en18246535 
(registering DOI)

13 December 2025

Electricity is fundamental to the functioning of modern economies, yet its price volatility presents significant challenges for both long-term investment planning and short-term operational decision-making. In this study we examine electricity price...

  • Article
  • Open Access
Energies2025, 18(24), 6537;https://doi.org/10.3390/en18246537 
(registering DOI)

13 December 2025

Temperature anomaly is a common fault in power transformers; therefore, achieving a fast and accurate calculation of the transformer temperature field is of great significance. This paper primarily introduces the methodology and self-programmed calcu...

  • Article
  • Open Access
Energies2025, 18(24), 6536;https://doi.org/10.3390/en18246536 
(registering DOI)

13 December 2025

Innovation in the new energy industry serves not only as a key accelerator for the global green and low-carbon energy transition but also as a core driving force of the ongoing energy revolution. This study utilizes data on publications, patents, and...

  • Review
  • Open Access
Energies2025, 18(24), 6533;https://doi.org/10.3390/en18246533 
(registering DOI)

13 December 2025

This article examines the growing relevance of photovoltaic (PV) energy amid rising electricity demand, sustainability goals, and the need for flexible energy management in households and enterprises. It analyzes six PV business models, ownership, le...

  • Article
  • Open Access
Energies2025, 18(24), 6532;https://doi.org/10.3390/en18246532 
(registering DOI)

13 December 2025

The induction motors are once again becoming increasingly more popular due to the shifts in global politics and economics. With this increased interest, there is a growing need for even better control solutions, especially for the automotive industry...

  • Article
  • Open Access
Energies2025, 18(24), 6530;https://doi.org/10.3390/en18246530 
(registering DOI)

13 December 2025

The research problem concerning oils used for lubricating piston combustion engines is still very current and important. The proper selection of oil and its properties have a significant impact on engine reliability and durability, their efficiency,...

  • Article
  • Open Access

Interaction Analysis of Offshore Power Systems: A Comparative Study

  • Michał Piekarz,
  • Sylwester Robak and
  • Mateusz Polewaczyk
Energies2025, 18(24), 6531;https://doi.org/10.3390/en18246531 
(registering DOI)

13 December 2025

This paper presents a comparative assessment of interaction analysis methods applied to a multi-variant offshore power system model. Complementary analytical techniques—eigenvalue analysis, frequency–response characteristics, RGA, DRGA, a...

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Energies - ISSN 1996-1073