Impact of Rooftop Solar Adoption on Employee Performance in Businesses: The Mediating Role of Workplace Sustainability in Pakistan

Abstract

Persistent electricity shortages and rapidly rising energy costs have pushed businesses across Pakistan toward rooftop solar photovoltaic systems as a practical alternative to the national grid. While the economic and environmental merits of this transition have received considerable scholarly attention, its implications for employee-level outcomes remain largely unexplored. This study investigates the impact of rooftop solar adoption on employee performance, with workplace sustainability examined as a mediating variable in this relationship. Drawing on Social Exchange Theory, it is argued that organizational investment in renewable energy infrastructure enhances workplace conditions and signals an institutional commitment to sustainability, which employees reciprocate through improved motivation, efficiency, and job satisfaction. A quantitative research design was employed, with primary data gathered from 200 employees working in solar-equipped businesses across major Pakistani cities via a structured, five-point Likert-scale questionnaire distributed through Google Forms. Data were analyzed using SPSS version 24, incorporating reliability analysis, Pearson correlation, and hierarchical regression-based mediation following Baron and Kenny's procedure. The findings confirm that rooftop solar adoption positively and significantly predicts employee performance (β = .671, p < .001) and that workplace sustainability partially mediates this relationship (R² = .612). All four proposed hypotheses were supported. The study recommends that organizations treat solar adoption as a strategic human capital investment rather than a mere cost-reduction measure, and that policymakers introduce targeted incentives to accelerate uptake among small and medium enterprises. These findings extend the literature on renewable energy, organizational behavior, and sustainable workplaces in the context of energy-constrained developing economies.