Day-Ahead Electricity Price Forecasting Using Merit-Order Curves Time Series

Fuente: arXiv
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Autori principali: Koechlin, Guillaume, Bovera, Filippo, Secchi, Piercesare
Natura: Preprint
Pubblicazione: 2025
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author Koechlin, Guillaume
Bovera, Filippo
Secchi, Piercesare
author_facet Koechlin, Guillaume
Bovera, Filippo
Secchi, Piercesare
contents We introduce a general, simple, and computationally efficient framework for predicting day-ahead supply and demand merit-order curves, from which both point and probabilistic electricity price forecasts can be derived. We conduct a rigorous empirical comparison of price forecasting performance between the proposed curve-based model, i.e., derived from predicted merit-order curves, and state-of-the-art price-based models that directly forecast the clearing price, using data from the Italian day-ahead market over the 2023-2024 period. Our results show that the proposed curve-based approach significantly improves both point and probabilistic price forecasting accuracy relative to price-based approaches, with average gains of approximately 5%, and improvements of up to 10% during mid-day hours, when prices occasionally drop due to high renewable generation and low demand.
format Preprint
id arxiv_https___arxiv_org_abs_2512_17758
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Day-Ahead Electricity Price Forecasting Using Merit-Order Curves Time Series
Koechlin, Guillaume
Bovera, Filippo
Secchi, Piercesare
Applications
We introduce a general, simple, and computationally efficient framework for predicting day-ahead supply and demand merit-order curves, from which both point and probabilistic electricity price forecasts can be derived. We conduct a rigorous empirical comparison of price forecasting performance between the proposed curve-based model, i.e., derived from predicted merit-order curves, and state-of-the-art price-based models that directly forecast the clearing price, using data from the Italian day-ahead market over the 2023-2024 period. Our results show that the proposed curve-based approach significantly improves both point and probabilistic price forecasting accuracy relative to price-based approaches, with average gains of approximately 5%, and improvements of up to 10% during mid-day hours, when prices occasionally drop due to high renewable generation and low demand.
title Day-Ahead Electricity Price Forecasting Using Merit-Order Curves Time Series
topic Applications
url https://arxiv.org/abs/2512.17758