Power, Control, and Data Processing Systems

Power, Control, and Data Processing Systems

Optimization and Performance Analysis of Photovoltaic Panels for Reducing Building Energy Consumption in the Bushehr Climate: A Hybrid Study

Document Type : Original Research

Authors
Reza Hosseini 1
SeyedMohammad Mahdi Moosavi 2
1 Division of Energy Engineering, Hamedan University of Technology, Hamedan, Iran
2 Department of Electrical and Computer Engineering, Hamedan University of Technology, Hamedan, Iran
10.30511/pcdp.2025.2060384.1024
Abstract
The global challenges posed by population growth, increasing energy demand, and the depletion of fossil fuel resources have intensified the need for sustainable energy solutions. In this context, renewable energy sources—particularly solar energy—have emerged as key alternatives due to their sustainability and environmental compatibility. This study analyzes and optimizes a photovoltaic (PV) system aimed at reducing building energy consumption in the hot and humid climate of Bushehr, Iran (latitude 28.92°N). Simulations were conducted using the TRNSYS software, evaluating the influence of factors such as building insulation, window-to-wall ratio, and panel tilt angle on system performance. The results indicate that south-facing PV panels installed at an optimal tilt angle of 25° can reduce building energy consumption by up to 25%. During summer months, the system decreased cooling loads by as much as 20% and partially met heating demands in winter. Additionally, the annual energy cost savings shortened the payback period to 8.33 years, while reducing annual CO₂ emissions by approximately 1.17 tons. These findings highlight the significance and effectiveness of PV systems in reducing energy consumption and environmental impact in similar climatic regions.
Keywords
Solar energy
building energy
economic analysis
payback period
photovoltaic panels
energy savings
TRNSYS software

Subjects

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Power, Control, and Data Processing Systems
Volume 2, Issue 3
Summer 2025
Pages 9-17

  • Receive Date 11 May 2025
  • Revise Date 01 July 2025
  • Accept Date 02 July 2025
  • First Publish Date 02 July 2025
  • Publish Date 01 September 2025