• Decomposition methods for multi-horizon stochastic programming 

      Zhang, Hongyu; Grossmann, Ignacio E.; Tomasgard, Asgeir (Journal article; Peer reviewed, 2024)
      Multi-horizon stochastic programming includes short-term and long-term uncertainty in investment planning problems more efficiently than traditional multi-stage stochastic programming. In this paper, we exploit the block ...
    • Investment planning under uncertainty in energy systems: Modelling and algorithms 

      Zhang, Hongyu (Doctoral theses at NTNU;2024:21, Doctoral thesis, 2024)
      This thesis applies operational research methods for the investment planning of energy systems under uncertainty for the energy transition. We develop new models and solution methods. On the modelling side, we first ...
    • Modelling and analysis of offshore energy hubs 

      Zhang, Hongyu; Tomasgard, Asgeir; Knudsen, Brage Rugstad; Svendsen, Harald Georg; Bakker, Steffen J.; Grossmann, Ignacio E. (Peer reviewed; Journal article, 2022)
      Clean offshore energy hubs may become pivotal for efficient offshore wind power generation and distribution. In addition, offshore energy hubs may provide decarbonised energy supply for maritime transport, oil and gas ...
    • Offshore Energy Hubs in the Decarbonisation of the Norwegian Continental Shelf 

      Zhang, Hongyu; Tomasgard, Asgeir; Knudsen, Brage Rugstad; Grossmann, Ignacio E. (Chapter, 2022)
      This paper studies the investment planning of a decarbonised Norwegian continental shelf energy system considering the connection and interfaces with the European energy system. A multi-horizon stochastic mixed-integer ...