Optimizing Renewable Energy Systems for Sustainable Heating, Electricity, and Cooling in Urban Areas

What is it about?

This publication discusses the process of determining the most efficient capacities of renewable-energy-based energy conversion systems to meet the energy needs of low-temperature District Heating (DH), electricity, and high-temperature district cooling in urban areas. A novel method is given for optimizing renewable-energy-based energy conversion systems to cater to the energy demands of low-temperature DH, electricity, and high-temperature district cooling in urban settings. The study emphasizes the importance of considering monthly variations in energy production and consumption, aiming to minimize lifecycle costs while maximizing energy satisfaction. By analysing case studies in the Greater Copenhagen Area and the Greater Toronto Area, the authors explore the optimal capacities of renewable energy technologies to meet diverse energy requirements throughout the year. They highlight the significance of integrating locally available renewable energy sources with citywide distribution systems to achieve substantial energy savings and low lifecycle costs while minimizing emissions.

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Photo by Martijn Baudoin on Unsplash

Photo by Martijn Baudoin on Unsplash

Why is it important?

The novelty of this publication lies in several key aspects: - The study introduces an optimization algorithm that determines the optimal capacities of renewable-energy-based energy conversion systems to simultaneously meet the energy requirements of low-temperature district heating, electricity, and high-temperature district cooling on a monthly basis. This approach considers the monthly variation of energy generation and demand for each energy type, leading to more precise and efficient system design. - Unlike traditional approaches that focus solely on exergetic costs of renewable energy sources, this study places a detailed emphasis on lifecycle cost calculations. By considering both technical aspects and economic factors, the analysis provides a comprehensive evaluation of the overall cost-effectiveness of the energy conversion systems. - The study incorporates the utilization of waste heat from renewable energy sources, highlighting the importance of maximizing energy efficiency and resource utilization in sustainable energy systems. - The comparison of energy conversion systems in terms of exergoeconomic values and environmental impact sets this study apart. By evaluating the economic and environmental aspects of renewable energy systems, the research offers valuable insights for decision-makers in the energy sector. Overall, the innovative approach of integrating technical, economic, and environmental considerations in determining optimal capacities for renewable energy systems in urban settings distinguishes this publication as a significant contribution to the field of sustainable energy planning.