• Hydropower Bidding in a Multi-Market Setting 

      Aasgård, Ellen Krohn; Fleten, Stein-Erik; Kaut, Michal; Midthun, Kjetil; Perez-Valdes, Gerardo A. (Journal article, 2018)
      We present a literature survey and research gap analysis of mathematical and statistical methods used in the context of optimizing bids in electricity markets. Particularly, we are interested in methods for hydropower ...
    • Hydropower Bidding Using Linear Decision Rules 

      Braathen, Jørgen; Eriksrud, Anders Lund (Master thesis, 2013)
      This thesis investigates the Linear Decision Rule (LDR) approach applied to the bidding problem of a Nordic hydropower producer with reservoir capacity. A stochastic programming model with piecewise LDR in the spot prices ...
    • Hydropower reservoir management using multi-factor price model and correlation between price and local inflow 

      Dimoski, Joakim; Nersten, Sveinung; Fleten, Stein-Erik; Löhndorf, Nils (Journal article, 2018)
      Hydropower producers with reservoir capacity have a special challenge when it comes to weighing the short-term profit from selling power in the day-ahead spot market against waiting for better electricity prices. In this ...
    • Implied Efficiency Curves from Analysis of Operational Patterns 

      brelin, sebastian; Lien, Morten Adrian; Fleten, Stein-Erik; Keppo, Jussi; Pichler, Alois (Chapter, 2018)
      A reservoir manager at a hydropower plant has to decide whether to release water in order to produce electricity, and the level at which to produce. These production levels have different efficiencies as well as other ...
    • Insights from actual day-ahead bidding of hydropower 

      Alnæs, Erik Nicholas; Grøndahl, Roger Blikra; Fleten, Stein-Erik; Boomsma, Trine Krogh (Journal article; Peer reviewed, 2015)
    • Inverse Equilibrium Analysis of Oligopolistic Electricity Markets 

      Risanger, Simon; Fleten, Stein-Erik; Gabriel, Steven Adam (Peer reviewed; Journal article, 2020)
      Inverse equilibrium modeling fits parameters of an equilibrium model to observations. This allows investigation of whether market structures fit observed outcomes and it has predictive power. We introduce a methodology ...
    • Investment in electric energy storage under uncertainty: a real options approach 

      Bakke, Ida; Fleten, Stein-Erik; Hagfors, Lars Ivar; Hagspiel, Verena; Norheim, Beate; Wogrin, Sonja (Journal article; Peer reviewed, 2016)
      In this paper we develop a real options approach to evaluate the profitability of investing in a battery bank. The approach determines the optimal investment timing under conditions of uncertain future revenues and investment ...
    • Investment in hydropower plants under uncertainty 

      Nygård, Maria Tandberg (Master thesis, 2013)
      Investment in renewable energy production in Norway is since the 1st of January 2012 granted subsidies through a market for elcertificates common with Sweden. The underlying purpose is to reach the Norwegian and Swedish ...
    • Investment in mutually exclusive transmission projects under policy uncertainty 

      Bakke, Ida; Fleten, Stein-Erik; Hagfors, Lars Ivar; Hagspiel, Verena; Norheim, Beate (Journal article; Peer reviewed, 2016)
      In this paper we evaluate mutually exclusive transmission projects under policy and economic uncertainty. The alternatives being considered are transmission investment projects between Norway and Germany, and Norway and ...
    • Investment Timing under Uncertain Renewable Energy Policy: An Empirical Study of Small Hydropower Projects 

      Linnerud, Kristin; Andersson, Ane Marte; Fleten, Stein-Erik (Journal article; Peer reviewed, 2014-12-15)
      Policy uncertainty can be a powerful deterrent to immediate investments.} Based on panel data of 214 licenses to construct small run-of-the-river hydropower plants, we examine whether the prospect of a common Swedish-Norwegian ...
    • Linear Decision Rules for Seasonal Hydropower Planning: Modelling Considerations 

      Braaten, Simen V.; Gjønnes, Ola; Hjertvik, Knut Jonny; Fleten, Stein-Erik (Journal article; Peer reviewed, 2016)
      The seasonal hydropower planning problem is presented as a robust optimization model using linear decision rules (LDR). Uncertainty is present in multiple inflow series and the price of electricity. The objective is to ...
    • Linepack storage valuation under price uncertainty 

      Arvesen, Øystein; Medbø, Vegard Gjelsvik; Fleten, Stein-Erik; Tomasgard, Asgeir; Westgaard, Sjur (Journal article; Peer reviewed, 2013)
      Natural gas flows in pipelines as a consequence of the pressure difference at the inlet and outlet. Adjusting these pressures makes it possible to inject natural gas at one rate and withdraw at a different rate, hence using ...
    • Long Term Hydropower Scheduling under Price and Inflow Uncertainty: A Linear Decision Rules Approach 

      Hadziomerovic, Ajla; Utheim Grønvik, Ida Alexandra; Ingvoldstad, Nina (Master thesis, 2013)
      This thesis takes the perspective of a hydropower producer facing the task of determining a long term reservoir management strategy that maximizes the expected market value of production. This task is complicated by the ...
    • Long-Term Extrapolation of Electricity Forward Curves - A Novel Approach Utilizing Forecasts and Risk Premia 

      Falch, Leif Kristian; Rolstad, Eivind Almeland (Master thesis, 2022)
      Vi ekstrapolerer forward kurven basert på langsiktige spotprisprognoser og en antakelse om at risikopremien konvergerer i modningsdimensjonen. Hypotesen om en konvergerende risikopremie blir vurdert gjennom en paret t-test ...
    • Managing Shutdown Decisions in Merchant Commodity and Energy Production: A Social Commerce Perspective 

      Trivella, Alessio; Nadarajah, Selvaprabu; Fleten, Stein-Erik; Mazieres, Denis; Pisinger, David (Peer reviewed; Journal article, 2020)
      Problem definition: Merchant commodity and energy production assets operate in markets with volatile prices and exchange rates. Plant closures adversely affect societal entities beyond the specific plant being shut down, ...
    • Mature offshore oil field development: Solving a real options problem using stochastic dual dynamic integer programming 

      Bakker, Steffen J.; Kleiven, Andreas; Fleten, Stein-Erik; Tomasgard, Asgeir (Peer reviewed; Journal article, 2021)
      Oil and gas companies are facing low output prices and are forced to focus on the development of mature fields. Relevant investment decisions for operators include lifetime-enhancing activities, such as drilling new wells ...
    • Modelling Liquidity in the Nordic Electricity Market 

      Flått, Andreas Wilhelm; Skogen, Olav (Master thesis, 2020)
      Denne avhandlingen presenterer en modell som predikerer dynamikken i spredningen mellom kjøperkurs og selgerkurs for det nordiske kraftmarkedet. I tillegg gjennomføres det en detaljert empirisk analyse av likviditet i det ...
    • Multi market bidding strategies for demand side flexibility aggregators in electricity markets 

      Ottesen, Stig Ødegaard; Tomasgard, Asgeir; Fleten, Stein-Erik (Journal article; Peer reviewed, 2018)
      Due to the electricity systems’ increasing need for flexibility, demand side flexibility aggregation becomes more important. An issue is how to make such activities profitable, which may be obtained by selling flexibility ...
    • Multi-Market Forward Curve Approaches for Natural Gas 

      Sharma, Shivam Deep; Vinje, Morten Haugestøyl (Master thesis, 2023)
      I denne oppgaven simulerer vi samtidige forwardkurver for den nederlandske naturgassbørsen Title Transfer Facility (TTF) og den britiske naturgassbørsen National Balancing Point (NBP). Vi benytter tre ulike tilnærminger ...
    • Multistage grid investments incorporating uncertainty in offshore wind development 

      Kristiansen, Martin; Svendsen, Harald Georg; Korpås, Magnus; Fleten, Stein-Erik (Journal article; Peer reviewed, 2017)
      Representation of uncertainty in transmission expansion planning (TEP) models has become increasingly important as many power systems are exposed to significant technological changes induced by top-down climate and energy ...