Author: Zheng Ma (University of Southern Denmark) - The global imperative to decarbonize has increased focus on sector coupling, integrating electricity, heating, and hydrogen (Power-to-X) pathways. To tackle planning challenges such as technology interoperability and market integration, we propose a novel digital twin framework offering a safe "sandbox" to evaluate strategies without real-world disruption. Our modular approach combines AI-driven forecasts, agent-based market simulations, and energy system modeling, uniquely incorporating flexible hydrogen electrolysis. Validated in Southern Denmark, our simulations show coordinated hydrogen production significantly reduces renewable curtailment and enhances efficiency through waste heat recovery. Market-responsive electrolyzer operations cut total energy costs by up to 10%, underscoring the framework’s value in driving cross-sector decarbonization and emphasizing the need for standardized interfaces, robust markets, and supportive policies.
