Category Rapports

Nov
2021

Implementing a CO2 price floor in the electricity sector: analysis of two interconnected markets - C. Chaton, A. Creti

L’article analyse les effets pour le secteur électrique de l’introduction d’un prix plancher du CO2 sur le marché des permis d’émissions, dans une situation d’interconnexion entre deux marchés électriques nationaux : le modèle permet d’envisager la mise en place de cette mesure dans les deux pays simultanément ou bien dans un seul des deux pays.

Nov
2021

A survey of electricity spot and futures price models for risk management applications - T. Deschatre, O. Féron, and P. Gruet

Cet article présente l'ensemble des modèles de prix de l'électricité proposés dans la littérature depuis l'ouverture des marchés de l'électricité. Les auteurs se concentrent sur les modèles de prix appliqués à la tarification financière et à la gestion des risques. Les modèles sont classés en fonction de leur capacité à représenter le comportement aléatoire des prix et de certaines de leurs caractéristiques. En particulier, cette classification aide les utilisateurs à choisir Read more [...]

Nov
2021

Electricity intraday price modeling with marked hawkes processes - T. Deschatre & P. Gruet

Intraday electricity markets play an important role in the operation of power systems where the share of renewables has been steadily increasing overthe last 15 years. Statistical modeling of prices in these markets is crucial to better understand them and to allow market participants to operate more efficiently. The authors of this paper manage to finely reproduce the statistical properties of the series observed on the intraday markets, in particular to reproduce the microstructure noise, Read more [...]

Mar
2021

Decomposition of High Dimensional Aggregative Stochastic Control Problems - A. Seguret, C. Alasseur, J. F. Bonnans, A. De Paola, N. Oudjane, V. Trovato

Coordonner à grande échelle le fonctionnement des appareils électriques « flexibles » (typiquement régulés par thermostat) des particuliers est crucial pour assurer l’équilibrage de réseaux électriques qui sont de plus en plus alimentés par des sources renouvelables, par nature intermittentes. Parce qu’un pilotage centralisé de ces flexibilités nécessiterait l’échange de grandes quantités d’information (qui seraient de surcroit des données privées), on souhaiterait piloter Read more [...]

Jan
2021

MFG model with a long-lived penalty at random jump times: application to demand side management for electricity contracts - C. Alasseur, L. Campi, R. Dumitrescu, J. Zeng

L'article cherche à décrire la dynamique collective d’un marché de fourniture d’électricité dans lequel une fraction des consommateurs ont souscrit un contrat de type « demand side management », contrat par lequel ils s’engagent à réduire leur consommation pendant des durées prédéterminée et à des instants qui leur sont indiqués de manière aléatoire. Les interactions entre consommateurs ont la forme d’un jeu stochastique non-coopératif à somme non-nulle qui, lorsque ces Read more [...]

Nov
2020

Ring the Alarm! Electricity Markets, Renewables, and the Pandemic - David Benatia

The pandemic's impacts on European electricity markets have been enormous, especially in countries with abundant near-zero marginal cost of production like France. This article provides an in-depth quantitative study of the impacts of the crisis on the French electricity sector. During the lockdown episode, France has experienced unparalleled demand reductions (-11.5%) and energy price falls (-40%) resulting in revenue losses of 1.2 billion € (-45%) for market participants. This paper argues that Read more [...]

Nov
2020

Incentives, lockdown, and testing : from Thucydides’s Analysis to the COVID-19 pandemie - E. Hubert, T. Mastrolia, D. Possamaï and X. Warin

We consider the control of the COVID–19 pandemic via incentives, through either stochastic SIS or SIR compartmental models. When the epidemic is ongoing, the population can reduce interactions between individuals in order to decrease the rate of transmission of the disease, and thus limit the epidemic. However, this effort comes at a cost for the population. Therefore, the government can put into place incentive policies to encourage the lockdown of the population. In addition, the government may Read more [...]

Nov
2020

Equilibrium price in intraday electricity markets - René Aid, Andrea Cosso, and Huyên Pham

We formulate an equilibrium model of intraday trading in electricity markets. Agents face balancing constraints between their customers consumption plus intraday sales and their production plus intraday purchases. They have continuously updated forecast of their customers consumption at maturity with decreasing volatility error. Forecasts are prone to idiosyncratic noise as well as common noise (weather). Agents production capacities are subject to independent random outages, which are each modelled Read more [...]

Juil
2020

Deep backward multistep schemes for nonlinear PDEs and approximation error analysis - M. Germain, H. Pham & X. Warin

We develop multistep machine learning schemes for solving nonlinear partial differential equations (PDEs) in high dimension. The method is based on probabilistic representation of PDEs by backward stochastic differential equations (BSDEs) and its iterated time discretization. In the case of semilinear PDEs, our algorithm estimates simultaneously by backward induction the solution and its gradient by neural networks through sequential minimizations of suitable quadratic loss functions that are performed Read more [...]

Juil
2020

Fast multivariate empirical cumulative distribution function with connection to kernel density estimation - Nicolas Langrené & Xavier Warin

This paper revisits the problem of computing empirical cumulative distribution functions (ECDF) efficiently on large, multivariate datasets. Computing an ECDF at one evaluation point requires O(N) operations on a dataset composed of N data points. Therefore, a direct evaluation of ECDFs at N evaluation points requires a quadratic O(N^2) operations, which is prohibitive for large-scale problems. Two fast and exact methods are proposed and compared. The first one is based on fast summation in lexicographical Read more [...]

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