Assistant Professor Bharosh Kumar Yadav from the Department of Mechanical Engineering, Purwanchal Campus, Institute of Engineering (IOE), Tribhuvan University (TU), along with his research collaborators, has achieved a significant academic milestone through the publication of a high-quality research article in Research in Transportation Business & Management, a globally recognized Q1-ranked international journal published by Elsevier.

The research article, titled “Rooftop Solar PV for Green Campus and EV Charging Hub,” was authored by Bharosh Kumar Yadav^*, Nischal Pokhrel, Lekhnath Yadav, Ramhit Yadav, and Nirit Kumar Yadav. The study was conducted through collaborative efforts involving TU, IOE, Purwanchal Campus, the Alternative Energy Promotion Centre (AEPC), Rajarshi Janak University, SSMYM Campus, and other academic institutions of Nepal.

The research presents an innovative framework for transforming educational institutions into sustainable green campuses through the integration of rooftop solar photovoltaic (PV) systems and electric vehicle (EV) charging infrastructure. The study assessed the solar energy potential of Suryanarayan Satyanarayan Morbaita Yadav Multiple (SSMYM) Campus, Siraha, and evaluated the technical, economic, and environmental feasibility of utilizing surplus solar energy for EV charging applications.

The study demonstrates several important findings:

• Comprehensive assessment of rooftop solar PV potential for campus-based renewable energy generation.
• Annual electricity generation potential of approximately 310.7 MWh from the proposed grid-connected solar PV system.
• Generation of 875.83 kWh/day, significantly exceeding the campus electricity demand of 40 kWh/day.
• Availability of 835.83 kWh/day surplus energy for electric vehicle charging applications.
• Capability to support charging demand for up to 29 heavy electric vehicles or 85 light electric vehicles per day.
• Economic benefits exceeding USD 330,000 over the project lifetime.
• Reduction of approximately 753.5 tonnes of CO₂ emissions during the 25-year operational life of the system.

Graphical Abstract

Beyond technical assessment, the research provides a comprehensive roadmap for the planning and implementation of sustainable EV charging stations in Nepal. The study discusses current EV charging infrastructure, site suitability criteria, performance indicators, planning strategies, implementation requirements, and a proposed single-line electrical design for fast-charging systems. The framework can be replicated by educational institutions, municipalities, policymakers, investors, and energy planners across Nepal and other developing countries.

This publication contributes to the global discourse on sustainable transportation, renewable energy integration, and climate change mitigation. The findings support Nepal’s national targets for clean energy adoption and the transition toward net-zero carbon emissions while promoting the development of green campuses and sustainable urban mobility systems.

The research was supported by the Research Directorate, Office of the Rector, Tribhuvan University, under the Small Research Grant (SR-2081-2082-03) and by the Research Centre, Rajarshi Janak University, under the Small Research Grant (RPG22/2025). The authors also acknowledge SSMYM Campus and the Nepal Electricity Authority (NEA) for providing essential data and technical information for the study.

Publication in a prestigious Q1 journal highlights the quality, originality, and international relevance of research being conducted by faculty members and collaborators associated with the Institute of Engineering. This achievement further strengthens the research reputation of IOE and Tribhuvan University in the fields of renewable energy systems, sustainable transportation, electric mobility, and climate-resilient infrastructure.

Authors: Bharosh Kumar Yadav^*, Nischal Pokhrel, Lekhnath Yadav, Ramhit Yadav, and Nirit Kumar Yadav

Journal: Research in Transportation Business & Management (Elsevier)

DOI: https://doi.org/10.1016/j.rtbm.2026.101717