From Transformers to Large Language Models: A systematic review of AI applications in the energy sector towards Agentic Digital Twins

Fuente: arXiv
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Main Authors: Antonesi, Gabriel, Cioara, Tudor, Anghel, Ionut, Michalakopoulos, Vasilis, Sarmas, Elissaios, Toderean, Liana
Format: Preprint
Published: 2025
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author Antonesi, Gabriel
Cioara, Tudor
Anghel, Ionut
Michalakopoulos, Vasilis
Sarmas, Elissaios
Toderean, Liana
author_facet Antonesi, Gabriel
Cioara, Tudor
Anghel, Ionut
Michalakopoulos, Vasilis
Sarmas, Elissaios
Toderean, Liana
contents Artificial intelligence (AI) has long promised to improve energy management in smart grids by enhancing situational awareness and supporting more effective decision-making. While traditional machine learning has demonstrated notable results in forecasting and optimization, it often struggles with generalization, situational awareness, and heterogeneous data integration. Recent advances in foundation models such as Transformer architecture and Large Language Models (LLMs) have demonstrated improved capabilities in modelling complex temporal and contextual relationships, as well as in multi-modal data fusion which is essential for most AI applications in the energy sector. In this review we synthesize the rapid expanding field of AI applications in the energy domain focusing on Transformers and LLMs. We examine the architectural foundations, domain-specific adaptations and practical implementations of transformer models across various forecasting and grid management tasks. We then explore the emerging role of LLMs in the field: adaptation and fine tuning for the energy sector, the type of tasks they are suited for, and the new challenges they introduce. Along the way, we highlight practical implementations, innovations, and areas where the research frontier is rapidly expanding. These recent developments reviewed underscore a broader trend: Generative AI (GenAI) is beginning to augment decision-making not only in high-level planning but also in day-to-day operations, from forecasting and grid balancing to workforce training and asset onboarding. Building on these developments, we introduce the concept of the Agentic Digital Twin, a next-generation model that integrates LLMs to bring autonomy, proactivity, and social interaction into digital twin-based energy management systems.
format Preprint
id arxiv_https___arxiv_org_abs_2506_06359
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle From Transformers to Large Language Models: A systematic review of AI applications in the energy sector towards Agentic Digital Twins
Antonesi, Gabriel
Cioara, Tudor
Anghel, Ionut
Michalakopoulos, Vasilis
Sarmas, Elissaios
Toderean, Liana
Machine Learning
Artificial Intelligence
Artificial intelligence (AI) has long promised to improve energy management in smart grids by enhancing situational awareness and supporting more effective decision-making. While traditional machine learning has demonstrated notable results in forecasting and optimization, it often struggles with generalization, situational awareness, and heterogeneous data integration. Recent advances in foundation models such as Transformer architecture and Large Language Models (LLMs) have demonstrated improved capabilities in modelling complex temporal and contextual relationships, as well as in multi-modal data fusion which is essential for most AI applications in the energy sector. In this review we synthesize the rapid expanding field of AI applications in the energy domain focusing on Transformers and LLMs. We examine the architectural foundations, domain-specific adaptations and practical implementations of transformer models across various forecasting and grid management tasks. We then explore the emerging role of LLMs in the field: adaptation and fine tuning for the energy sector, the type of tasks they are suited for, and the new challenges they introduce. Along the way, we highlight practical implementations, innovations, and areas where the research frontier is rapidly expanding. These recent developments reviewed underscore a broader trend: Generative AI (GenAI) is beginning to augment decision-making not only in high-level planning but also in day-to-day operations, from forecasting and grid balancing to workforce training and asset onboarding. Building on these developments, we introduce the concept of the Agentic Digital Twin, a next-generation model that integrates LLMs to bring autonomy, proactivity, and social interaction into digital twin-based energy management systems.
title From Transformers to Large Language Models: A systematic review of AI applications in the energy sector towards Agentic Digital Twins
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2506.06359