Deep Learning-Based Electricity Price Forecast for Virtual Bidding in Wholesale Electricity Market

Fuente: arXiv
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Main Authors: Wang, Xuesong, Magableh, Sharaf K., Dawaghreh, Oraib, Wang, Caisheng, Gong, Jiaxuan, Zhao, Zhongyang, Liao, Michael H.
Format: Preprint
Published: 2024
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author Wang, Xuesong
Magableh, Sharaf K.
Dawaghreh, Oraib
Wang, Caisheng
Gong, Jiaxuan
Zhao, Zhongyang
Liao, Michael H.
author_facet Wang, Xuesong
Magableh, Sharaf K.
Dawaghreh, Oraib
Wang, Caisheng
Gong, Jiaxuan
Zhao, Zhongyang
Liao, Michael H.
contents Virtual bidding plays an important role in two-settlement electric power markets, as it can reduce discrepancies between day-ahead and real-time markets. Renewable energy penetration increases volatility in electricity prices, making accurate forecasting critical for virtual bidders, reducing uncertainty and maximizing profits. This study presents a Transformer-based deep learning model to forecast the price spread between real-time and day-ahead electricity prices in the ERCOT (Electric Reliability Council of Texas) market. The proposed model leverages various time-series features, including load forecasts, solar and wind generation forecasts, and temporal attributes. The model is trained under realistic constraints and validated using a walk-forward approach by updating the model every week. Based on the price spread prediction results, several trading strategies are proposed and the most effective strategy for maximizing cumulative profit under realistic market conditions is identified through backtesting. The results show that the strategy of trading only at the peak hour with a precision score of over 50% produces nearly consistent profit over the test period. The proposed method underscores the importance of an accurate electricity price forecasting model and introduces a new method of evaluating the price forecast model from a virtual bidder's perspective, providing valuable insights for future research.
format Preprint
id arxiv_https___arxiv_org_abs_2412_00062
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Deep Learning-Based Electricity Price Forecast for Virtual Bidding in Wholesale Electricity Market
Wang, Xuesong
Magableh, Sharaf K.
Dawaghreh, Oraib
Wang, Caisheng
Gong, Jiaxuan
Zhao, Zhongyang
Liao, Michael H.
Machine Learning
Computational Finance
Virtual bidding plays an important role in two-settlement electric power markets, as it can reduce discrepancies between day-ahead and real-time markets. Renewable energy penetration increases volatility in electricity prices, making accurate forecasting critical for virtual bidders, reducing uncertainty and maximizing profits. This study presents a Transformer-based deep learning model to forecast the price spread between real-time and day-ahead electricity prices in the ERCOT (Electric Reliability Council of Texas) market. The proposed model leverages various time-series features, including load forecasts, solar and wind generation forecasts, and temporal attributes. The model is trained under realistic constraints and validated using a walk-forward approach by updating the model every week. Based on the price spread prediction results, several trading strategies are proposed and the most effective strategy for maximizing cumulative profit under realistic market conditions is identified through backtesting. The results show that the strategy of trading only at the peak hour with a precision score of over 50% produces nearly consistent profit over the test period. The proposed method underscores the importance of an accurate electricity price forecasting model and introduces a new method of evaluating the price forecast model from a virtual bidder's perspective, providing valuable insights for future research.
title Deep Learning-Based Electricity Price Forecast for Virtual Bidding in Wholesale Electricity Market
topic Machine Learning
Computational Finance
url https://arxiv.org/abs/2412.00062