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arxiveess.SY2026-07-17

Day-Ahead Forecasting of Largest Single Infeed/Outfeed on the Irish Power Grid: A Generative Artificial Intelligence Approach

Amir Moshari, Mo Cloonan, Taulant Kerci, Zhi Li, Colm Gaffney, Chotiya Mahittigul, Manuel Hurtado, Simon Tweed, Bryan Murray, Michael Walsh, Eoin Kennedy, Ritesh Madan

This paper presents a generative artificial intelligence (Gen AI) approach for forecasting, at a day-ahead stage, the largest single infeed (LSI) and largest single outfeed (LSO) on the Irish power system to assist in reserve dimensioning. Developed collaboratively between EirGrid, the electric transmission system operator (TSO) for Ireland, and GridZero.ai using the GridZero.ai platform, the system delivers accurate forecasts up to 38 hours ahead of real-time using limited data available before the day-ahead and intra-day energy market gate closure timings. Initial performance demonstrates an accuracy with a mean absolute percentage error (MAPE) that is only 1.1\% higher than the results possible using full market data (8-hours ahead). Thus, if this approach is integrated into operational systems and such high levels of accuracy are maintained, reserve procurement costs could be significantly reduced. The results also demonstrate the practicality and extensibility of AI-powered resource planning for TSOs.

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arxiveess.SY2026-07-14

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arxiveess.SY2026-07-21

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arxiveess.SY2026-07-11

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arxiveess.SYcs.AI2026-07-20

LLMs and Agentic AI Systems for Smart Grids: A Tutorial on Architectures and Applications

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Large language models (LLMs) and agentic AI systems have evolved from natural language tasks to using external tools to plan, retrieve, and act in technical domains. In smart grids, recent work applies agentic schemes to forecasting, optimization, and control, wrapping trusted so…

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arxiveess.SY2026-07-10

Jacobian Voltage Stiffness Metric -- A Measure of Grid-Forming Capability and System Strength in IBR-Dominated Grids

Ambuj Gupta, Balarko Chaudhuri, Mark O'Malley

As power systems transition toward inverter-based resource (IBR)-dominated grids, traditional system strength definitions and metrics are becoming increasingly inadequate to characterize upcoming stability challenges. Emerging definitions characterize system strength in terms of…

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