Ellen Krohn Aasgård
Ellen Krohn Aasgård
Publikasjoner og ansvarsområder
Operational use of marginal cost curves for a hydropower producer trading in the intraday market
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...
Rolling Horizon Simulator for Evaluation of Bidding Strategies for Reservoir Hydro
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 ...
SHOP: How hydropower scheduling creates value now and in the future
Progressive hedging for stochastic programs with cross-scenario inequality constraints
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...
SHOP: Hvordan vannkraftplanlegging gir verdi nå og i fremtiden
Slik får kraftverkene mest mulig strøm ut av vannet i demningene
Hydropower bidding in a multi-market setting
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...
Optimizing day-ahead bid curves in hydropower production
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 ...
Comparing Bidding Methods for Hydropower
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...