Affiliation:
1. İZMİR YÜKSEK TEKNOLOJİ ENSTİTÜSÜ
2. ESKİŞEHİR TEKNİK ÜNİVERSİTESİ
Abstract
In this research paper the feasibility of renewable-powered, self-sufficient university campuses was explored by conducting a technoeconomic analysis of standalone PV-Battery systems for the buildings of Izmir Institute of Technology (IZTECH) in Izmir, Turkey. Given the high energy demand and dependence on fossil-based grids by universities, integrating renewables becomes important for minimizing carbon footprints. In this study the campus's solar potential was focused and the techno-economic feasibility of grid-independent operations provided by PV-battery systems was evaluated. Four scenarios were investigated: (i) maximum PV installation for each building (MPVB), (ii) maximum PV installation for the entire campus (MPVC), (iii) necessary PV installation for self-sufficiency of each building (NPVB), and (iv) necessary PV installation for self-sufficiency of the whole campus (NPVC). The first two scenarios considered the maximum achievable rooftop PV installation while the latter two included additional PV installation to cover all electricity needs. For all scenarios both lead-acid and Li-ion batteries were considered. Mathematical models were developed using PVSol and TRNSYS software, and technoeconomic analysis was conducted using Levelized Cost of Energy (LCOE) and Net Present Value (NPV) methods. It was found that the NPVC scenario with lead-acid batteries is the most favorable, as it minimizes battery utilization by enabling more PV installation and facilitating energy transfer between buildings. Additionally, the research showed that off-grid PV-battery systems are economically less feasible compared to on-grid counterparts, primarily due to the high cost of batteries.
Publisher
Makina Muhendisleri Odasi (Chamber of Mechanical Engineering)
Reference32 articles.
1. Acakpovi, A., Adjei, P., Nwulu, N., & Asabere, N. Y. (2020). Optimal Hybrid Renewable Energy System: A Comparative Study of Wind/Hydrogen/Fuel-Cell and Wind/Battery Storage. Journal Electrical Computer Engineering, 64, 249-57. http://doi: 10.1155/2020/1756503.
2. Altun, A. F. (2021). Şebekeden Bağımsız, Güneş ve Rüzgar Kaynaklı, Batarya ve Hidrojen Depolamalı Hibrit Enerji Sistemlerinin Dinamik Modellemesi, Enerji, Ekserji ve Seviyelendirilmiş Maliyet Analizi. (Master Thesis). Bursa Uludağ Üniversitesi Fen Bilimleri Enstitüsü, Bursa.
3. Atılgan, F. (2019). Balıkesir İlindeki PV Sistemlerinin Analizi. (Master Thesis). Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Elektrik-Elektronik Mühendisliği Anabilim Dalı. Balıkesir.
4. Aykut, E., & Terzi, K. (2020). Techno-Economic and Environmental Analysis Off-Grid Connected Hybrid Wind/Photovoltaic/Biomass System for Marmara University Goztepe Campus. International Journal of Green Energy, 15, 1036-1043. https://doi.org/10.1080/15435075.2020.1821691.
5. Bilgili, M. E., & Dağtekin, M. (2019). Supplying the Electricity for the Broiler Poultry Houses from Photovoltaic Solar Panels in the Adana Conditions. Çukurova II.Uluslararası Multidisipliner Çalışmalar Kongresi, 793-805, Adana.