• Assessing Efficiency and Environmental Performance of a Nearly Zero-Energy University Building’s Energy System in Norway 

      Abrahamsen, Fredrik Ege; Ruud, Sturla Grina; Gebremedhin, Alemayehu (Peer reviewed; Journal article, 2023)
      Increasing awareness of climate issues in recent decades has led to new policies on buildings’ energy consumption and energy performance. The European Union (EU) directive 2010/31/EC, i.e., the energy performance of buildings ...
    • Communication Technologies for Smart Grid: A Comprehensive Survey 

      Abrahamsen, Fredrik Ege; Ai, Yun; Cheffena, Michael (Peer reviewed; Journal article, 2021)
      With the ongoing trends in the energy sector such as vehicular electrification and renewable energy, the Smart Grid (SG) is clearly playing a more and more important role in the electric power system industry. One essential ...
    • Free-Space Optical Communication: From Space to Ground and Ocean 

      Abrahamsen, Fredrik Ege; Ai, Yun; Wold, Knut; Mohamed, Marshed Kassim (Peer reviewed; Journal article, 2021)
      During the last decade, there has been a rapid advancement in the area of mobile broadband and wireless communication. The demand for higher data rate and capacity has continuously increased thanks to the growing need for ...
    • Moving toward a Sustainable Energy System: A Case Study of Viken County of Norway 

      Abrahamsen, Fredrik Ege; Ruud, Sturla Grina; Gebremedhin, Alemayehu (Peer reviewed; Journal article, 2020)
      Increasing awareness of climate issues and environmental policy has been a key factor behind the continuous transition of energy systems at different levels. This paper aimed to analyse the energy system of Viken county, ...