Techno-Economic Validation of AI-Based Energy Optimization for Smart Campuses: A Digital Twin Simulation Approach
Abstract
Context—The rising trajectory of energy consumption in mid-to-large scale educational facilities presents a significant challenge for modern sustainability goals. University campuses, characterized by complex infrastructure and fluctuating occupancy patterns, often suffer from inefficiencies inherent in traditional, rule-based Building Management Systems (BMS). These static systems frequently fail to adapt to dynamic operational conditions, leading to excessive energy waste and compromised occupant comfort. Consequently, there is a critical need to transition from reactive management to intelligent, predictive systems capable of handling the stochastic nature of campus energy demands. Addressing this gap requires robust validation of adaptive technologies that can harmonize energy efficiency with operational cost-effectiveness.
Objective—In the framework of the problems associated with static energy management, the main purpose of this study is to evaluate the technical performance and economic feasibility of a proposed hybrid Artificial Intelligence-based energy optimization model designed specifically for smart campuses. This research aims to bridge the gap between theoretical AI models and practical applications by investigating whether an autonomous system can significantly reduce energy consumption without degrading user comfort, while simultaneously proving its financial viability as a long-term investment for institutional stakeholders.
Method—To achieve rigorous validation, a high-fidelity digital twin of a mid-sized university campus was developed. The study employs a Counterfactual Simulation assumption, running parallel execution threads to benchmark the AI model against a Rule- Based Control (RBC) baseline under identical TMY meteorological conditions. This virtual environment models a 100,000-square-meter indoor area comprising four distinct building typologies: administrative offices, laboratories, classroom buildings, and cafeterias. The study simulates real-time operations under distinct summer and winter meteorological scenarios to test system resilience. The proposed control architecture integrates three specific neural network models: Deep Q-Networks (DQN) are utilized to optimize heating, ventilation, and air conditioning (HVAC) systems; Convolutional Neural Networks (CNN) are deployed for precise, motion-based lighting control, and Multi-Layer Perceptrons (MLP) are applied to manage plug load anomalies.
Results—The most significant findings obtained from the simulation demonstrate that the proposed hybrid AI system outperforms traditional rule-based baselines by a substantial margin. The system achieves an average energy saving of 44.5% across the simulated campus, while successfully maintaining a user comfort score of 91% in compliance with ASHRAE 55, indicating that efficiency did not come at the cost of habitability. Furthermore, the financial analysis, recalculated using these simulation-verified savings, reveals compelling economic indicators. Despite the high initial capital expenditures required for implementation, the system achieves a break-even point within just 6 years and stabilizes at an Internal Rate of Return (IRR) of 20%.
Conclusion—These findings confirm that autonomous automation is not only technically robust but also presents a financially viable solution for sustainable campus infrastructure. The study implies that hybrid AI models offer a scalable pathway for educational institutions to reduce their carbon footprint and operational costs. Future studies may focus on integrating renewable energy sources into this control architecture to further enhance grid independence and sustainability.
Keywords
References
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Details
Primary Language
English
Subjects
Modelling and Simulation
Journal Section
Research Article
Early Pub Date
April 13, 2026
Publication Date
-
Submission Date
January 5, 2026
Acceptance Date
March 9, 2026
Published in Issue
Year 2026 Number: Advanced Online Publication