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Ellen Krohn Aasgård

Research Manager

Ellen Krohn Aasgård

Research Manager

Ellen Krohn Aasgård
Phone: 934 06 340
Department: Energy Systems
Office: Trondheim

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1763341

In this paper, we show how progressive hedging may be used to solve stochastic programming problems that involve cross-scenario inequality constraints. In contrast, standard stochastic programs involve cross-scenario equality constraints that describe the non-anticipative nature of the optimal solut...

Year 2019
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1755854

In this paper we investigate the use of marginal cost curves for bidding and offering electricity in a continuous intraday market. Due to the real-time nature of the market, trading decisions must be supported in a computationally efficient manner. Taking the view of a price-taking hydropower produc...

Authors Dideriksen Ane Frøyen Sekkesæter Susanne Fleten Stein-Erik Aasgård Ellen Krohn Skjelbred Hans Ivar
Year 2019
Type Part of a book/report
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1755823

In this paper, a practical approach for benchmarking different bidding strategies towards the day-ahead market has been evaluated. A rolling horizon simulation framework is developed and closely integrated in the daily operations of a hydropower producer. The power producer’s existing framework of d...

Authors Riddervold Hans Ole Aasgård Ellen Krohn Skjelbred Hans Ivar Naversen Christian Øyn Korpås Magnus
Year 2019
Type Part of a book/report
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1583757

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 producers that participate in multiple, sequential markets for short-term delivery...

Authors Aasgård Ellen Krohn Fleten Stein-Erik Kaut Michal Midthun Kjetil Trovik Perez-Valdes Gerardo Alfredo
Year 2018
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1454798

In deregulated electricity markets, hydropower producers must bid their production into the day-ahead market. For price-taking producers, it is optimal to offer energy according to marginal costs, which for hydropower are determined by the opportunity cost of using water that could have been stored ...

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1331907

In this paper we compare several methods used by hydropower producers for the determination of bids to the day-ahead market. The methods currently used by the hydropower industry are based on heuristics and expert assessments, but we also include a new method for formal optimization of the bid decis...

Authors Aasgård Ellen Krohn Skjelbred Hans Ivar Solbakk Fredrik
Year 2016
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1278556

We present a model for operational stochastic short-term hydropower scheduling, taking into account the uncertainty in future prices and inflow, and illustrate how the benefits of using a stochastic rather than a deterministic model can be quantified. The solution method is based on stochastic succe...

Year 2016
Type Journal publication