Blar i SINTEF Open på forfatter "Helseth, Arild"
-
Impact of Modelling Details on the Generation Function for a Norwegian Hydropower Producer
Hjelmeland, Martin N.; Helseth, Arild; Korpås, Magnus (Journal article; Peer reviewed, 2018)Impact of Modelling Details on the Generation Function for a Norwegian Hydropower Producer -
Impact on hydropower plant income from participating in reserve capacity markets
Haugen, Mari; Schaffer, Linn Emelie; Mo, Birger; Helseth, Arild (International Conference on the European Energy Market;2020, Chapter; Peer reviewed, 2020)The aim of this work is to simulate prices in the markets for spot and spinning reserve capacity in the Nordic region. We consider four selected seasonal weeks using a model framework for multi-market price forecasting in ... -
Measuring the Impact of Environmental Constraints on Hydropower Flexibility
Mathisen, Siri Gulaker; Mo, Birger; Helseth, Arild; Bladh, Johan; Funkquist, Jonas (International Conference on the European Energy Market;18, Chapter; Peer reviewed, 2022)Implementation of EU’s Water Framework directive, meant to ensure sustainability of the hydropower production, may lead to new environmental constraints on hydropower systems. This can result in loss of production, reduced ... -
Medium-Term hydropower scheduling with variable head under inflow, energy and reserve capacity price uncertainty
Hjelmeland, Martin N.; Helseth, Arild; Korpås, Magnus (Journal article; Peer reviewed, 2019)We propose a model for medium-term hydropower scheduling (MTHS) with variable head and uncertainty in inflow, reserve capacity, and energy price. With an increase of intermittent energy sources in the generation mix, it ... -
Medium-term scheduling of a hydropower plant participating as a price-maker in the automatic frequency restoration reserve market
Perez-Diaz, Juan I.; Guisández, Ignacio; Chazarra, Manuel; Helseth, Arild (Peer reviewed; Journal article, 2020) -
Modeling and Quantifying the Importance of Snow Storage Information for the Nordic Power System
Mo, Birger; Helseth, Arild; Warland, Geir (International Conference on the European Energy Market;, Chapter; Peer reviewed, 2018)This paper describes how snow storage information can be used to improve the hydro operation strategy in a newly developed hydrothermal market simulation model. The model was applied to a detailed description of the Nordic ... -
Modeling the Real-Time use of Reserves in the Joint Energy and Reserve Hourly Scheduling of a Pumped Storage Plant
Chazarra, Manuel; Perez-Diaz, Juan I.; Garcia-Gonzàles, Javier; Helseth, Arild (Journal article; Peer reviewed, 2016)This paper studies the impact that different approaches of modeling the real-time use of the secondary regulation reserves have in the joint energy and reserve hourly scheduling of a price-taker pumped-storage hydropower ... -
Modelling uncertainty in gas and CO2 prices – consequences for electricity price
Mo, Birger; Helseth, Arild; Rex, Stefan (International Conference on the European Energy Market;19, Chapter, 2023)A hydro-thermal market model is applied to a description of the north-European electricity system. The paper describes how modelling uncertain gas and CO 2 prices affects uncertainty in calculated electricity prices. Gas ... -
Multi-Market Price Forecasting in Hydro-Thermal Power Systems
Helseth, Arild; Haugen, Mari; Jaehnert, Stefan; Mo, Birger; Farahmand, Hossein; Naversen, Christian Øyn (Chapter; Peer reviewed, 2018)This paper presents a framework for price forecasting in hydro-thermal power systems. The framework consists of a long-term strategic and a short-term operational model. The strategic model provides the end-of-horizon ... -
Nonconvex Environmental Constraints in Hydropower Scheduling
Helseth, Arild; Mo, Birger; Hågenvik, Hans Olaf (Chapter, 2020)Environmental constraints in hydropower systems serve to ensure sustainable use of water resources. Through accurate treatment in hydropower scheduling, one seeks to respect such constraints in the planning phase while ... -
Nonconvex Medium-Term Hydropower Scheduling by Stochastic Dual Dynamic Integer Programming
Hjelmeland, Martin N.; Zou, Jikai; Helseth, Arild; Ahmed, Shabbir (Journal article; Peer reviewed, 2018)Hydropower producers rely on stochastic optimization when scheduling their resources over long periods of time. Due to its computational complexity, the optimization problem is normally cast as a stochastic linear program. ... -
Operating a Battery in a Hydropower-Dominated System to Balance Net Load Deviations
Naversen, Christian Øyn; Bjarghov, Sigurd; Helseth, Arild (International Conference on the European Energy Market;2019, Chapter; Peer reviewed, 2019)Decreasing costs of battery storage technologies make them a viable option for providing flexibility in power systems. In this paper, we study the operations of a battery in combination with cascaded hydropower in a system ... -
Optimal Hydropower Maintenance Scheduling in Liberalized Markets
Helseth, Arild; Fodstad, Marte; Mo, Birger (Journal article; Peer reviewed, 2018)Maintenance scheduling is an important and complex task in hydropower systems. In a liberalized market, the generation company will schedule maintenance periods to maximize the expected profit. This paper describes a method ... -
Optimal medium-term hydropower scheduling considering energy and reserve capacity markets
Helseth, Arild; Fodstad, Marte; Mo, Birger (Journal article; Peer reviewed, 2016)Print Request Permissions This paper describes a method for optimal scheduling of hydropower systems for a profit maximizing, price-taking, and risk neutral producer selling energy, and capacity to separate and sequentially ... -
Primod – A fundamental short-term model for power system analyses and multimarket price forecasting
Haugen, Mari; Helseth, Arild (SINTEF Rapport;, Research report, 2021) -
Probabilistic socio-economic cost assessment integrating power market and reliability analysis
Sperstad, Iver Bakken; Wolfgang, Ove; Helseth, Arild; Reigstad, Tor Inge; Kjølle, Gerd Hovin (Chapter; Peer reviewed, 2018)Abstract: Moving from deterministic to probabilistic reliability criteria for power systems necessitates probabilistic methods for socio-economic impact assessment. This paper demonstrates a probabilistic assessment of the ... -
Relaxation Techniques and Temporal Decomposition of Scenarios in Fundamental Power Market Models
Helseth, Arild (SINTEF Rapport;, Research report, 2022)This report elaborates on the possibilities for reducing computation time in the Fansi power market model by applying relaxation techniques and temporal decomposition. Findings and conclusions are supported by computational ... -
Scheduling Toolchains in Hydro-Dominated Systems : evolution, Current Status and Future Challenges for Norway and Brazil
Helseth, Arild; Geber de Melo, Albert Corderio (SINTEF Rapport;, Research report, 2020)This report elaborates on the toolchains applied for generation scheduling in the two countries Norway and Brazil. Both countries have vast hydropower resources, with numerous geographically widespread and complex reservoir ... -
SOVN Model Implementation : method, functionality and details
Helseth, Arild; Mo, Birger; Henden, Arild Lothe; Warland, Geir (SINTEF Energi. Rapport;TR A7618, Research report, 2017)The SOVN project ("Stokastisk optimaliseringsmodell for Norden med individuelle vannverdier og nettrestriksjoner") aimed at creating a new fundamental hydro-thermal market model with detailed representation of the hydropower ... -
A stochastic dynamic programming model for hydropower scheduling with state-dependent maximum discharge constraints
Schäffer, Linn Emelie; Helseth, Arild; Korpås, Magnus (Peer reviewed; Journal article, 2022)We present a medium-term hydropower scheduling model that includes inflow- and volume-dependent environmental constraints on maximum discharge. A stochastic dynamic programming algorithm (SDP) is formulated to enable an ...