Climate resilient interconnected infrastructure: Co-optimization of energy systems and urban morphology
Journal article, 2021

Co-optimization of urban morphology and distributed energy systems is key to curb energy consumption and optimally exploit renewable energy in cities. Currently available optimization techniques focus on either buildings or energy systems, mostly neglecting the impact of their interactions, which limits the renewable energy integration and robustness of the energy infrastructure; particularly in extreme weather conditions. To move beyond the current state-of-the-art, this study proposes a novel methodology to optimize urban energy systems as interconnected urban infrastructures affected by urban morphology. A set of urban morphologies representing twenty distinct neighborhoods is generated based on fifteen influencing parameters. The energy performance of each urban morphology is assessed and optimized for typical and extreme warm and cold weather datasets in three time periods from 2010 to 2039, 2040 to 2069, and 2070 to 2099 for Athens, Greece. Pareto optimization is conducted to generate an optimal energy system and urban morphology. The results show that a thus optimized urban morphology can reduce the levelized cost for energy infrastructure by up to 30%. The study reveals further that the current building form and urban density of the modelled neighborhoods will lead to an increase in the energy demand by 10% and 27% respectively. Furthermore, extreme climate conditions will increase energy demand by 20%, which will lead to an increment in the levelized cost of energy infrastructure by 40%. Finally, it is shown that co-optimization of both urban morphology and energy system will guarantee climate resilience of urban energy systems with a minimum investment.

Interconnected infrastructure

Urban form

Energy systems

Sustainable cities

Urban planning

Author

Amarasinghage Tharindu Dasun Perera

Swiss Federal Laboratories for Materials Science and Technology (Empa)

Kavan Javanroodi

Swiss Federal Institute of Technology in Lausanne (EPFL)

Chalmers, Architecture and Civil Engineering, Building Technology

Vahid Nik

Chalmers, Architecture and Civil Engineering, Building Technology

Lund University

Queensland University of Technology (QUT)

Applied Energy

0306-2619 (ISSN)

Vol. 285 116430

Flexible Energy System Integration using Concept development, demonstration and replication

European Commission (EC), 2019-09-09 -- 2022-05-31.

Swedish Energy Agency, 2019-09-09 -- 2022-05-31.

Subject Categories

Other Environmental Engineering

Energy Systems

Marine Engineering

DOI

10.1016/j.apenergy.2020.116430

More information

Latest update

1/20/2021