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<p>The rising cost of energy, coupled with the global emphasis on sustainability, has spurred a broad shift towards cleaner and more efficient energy solutions. Educational institutions, with their extensive rooftop areas and high energy consumption due to operational and human activity, are particularly well-positioned to contribute to this transition. This study evaluates the techno-economic feasibility of rooftop solar PV systems in Malaysian educational institutions, providing insights into energy savings and grid dependency reduction and aiming to support the adoption of rooftop PV systems in educational buildings. Using the NREL System Advisor Model (SAM), simulations were performed on PV systems sized at 100&#xa0;kW, 500&#xa0;kW, and 1000&#xa0;kW, focusing on key financial metrics: Net Present Value (NPV), Discounted Payback Period (DPP), and Levelized Cost of Electricity (LCOE). The results show that a 500&#xa0;kW system can reduce grid electricity use by 57% to 78%, yielding NPVs between 479,442 MYR (105,477 USD) and 4,865,835 MYR (1,070,484 USD), DPPs ranging from 6.3 to 10.9&#xa0;years, and LCOE values from 0.2141 to 0.2506 MYR (0.0471 to 0.0551 USD). These findings demonstrate the economic benefits of rooftop solar PV systems in educational settings, positioning them as a valuable tool for supporting Malaysia’s renewable energy targets, addressing sustainability goals, and fostering a low-carbon future.</p>

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Optimizing renewable energy in education: a techno-economic study of rooftop solar PV systems in Malaysia

  • 期刊论文

  • 发表日期：

    2026年3月19日

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  • Nor Hazlina Md Khairi,
  • Yutaro Akimoto,
  • Keiichi Okajima

摘要

The rising cost of energy, coupled with the global emphasis on sustainability, has spurred a broad shift towards cleaner and more efficient energy solutions. Educational institutions, with their extensive rooftop areas and high energy consumption due to operational and human activity, are particularly well-positioned to contribute to this transition. This study evaluates the techno-economic feasibility of rooftop solar PV systems in Malaysian educational institutions, providing insights into energy savings and grid dependency reduction and aiming to support the adoption of rooftop PV systems in educational buildings. Using the NREL System Advisor Model (SAM), simulations were performed on PV systems sized at 100 kW, 500 kW, and 1000 kW, focusing on key financial metrics: Net Present Value (NPV), Discounted Payback Period (DPP), and Levelized Cost of Electricity (LCOE). The results show that a 500 kW system can reduce grid electricity use by 57% to 78%, yielding NPVs between 479,442 MYR (105,477 USD) and 4,865,835 MYR (1,070,484 USD), DPPs ranging from 6.3 to 10.9 years, and LCOE values from 0.2141 to 0.2506 MYR (0.0471 to 0.0551 USD). These findings demonstrate the economic benefits of rooftop solar PV systems in educational settings, positioning them as a valuable tool for supporting Malaysia’s renewable energy targets, addressing sustainability goals, and fostering a low-carbon future.