The Role of Green Sukuk and Waqf-Linked Bonds in Financing Renewable Energy and Green Infrastructure

Abstract

The escalating climate crisis and the ambitious targets of the Sustainable Development Goals (SDGs) have exposed a colossal global financing gap, estimated in the trillions of dollars annually, which public funds alone cannot bridge. In this context, the convergence of sustainable finance and the rapidly growing Islamic finance industry presents a profound opportunity. This paper provides a comprehensive analysis of two key Islamic financial instruments—Green Sukuk and Waqf-Linked Bonds—and evaluates their unique and complementary roles in mobilizing capital for renewable energy and green infrastructure. The analysis moves beyond a descriptive overview to establish a theoretical framework rooted in the higher objectives of Islamic law (Maqasid al-Shariah), which positions environmental stewardship not as an ancillary benefit but as a core tenet of Shariah. A granular examination of the instruments' mechanics reveals that Green Sukuk, through their asset-ownership structure, offer enhanced transparency and mitigate greenwashing risks in commercially viable projects, while Waqf-Linked Bonds, by blending philanthropy with capital markets, provide a novel mechanism to fund essential green public goods that lack direct financial returns. Through an empirical investigation of pioneering markets, this paper presents detailed case studies of Indonesia’s sovereign Green Sukuk program and Malaysia’s corporate issuances for large-scale solar projects, highlighting distinct and successful models for market development. The analysis identifies key challenges, including regulatory fragmentation and high issuance costs, alongside significant opportunities driven by rising investor demand and structural innovation. The paper concludes by presenting a series of policy recommendations for regulators, governments, and multilateral development banks aimed at creating a virtuous cycle of supply and demand to scale these markets. It posits that Green Sukuk and Waqf-Linked Bonds represent not merely Shariah-compliant alternatives but a new, more holistic paradigm in sustainable finance that intrinsically integrates financial, environmental, and ethical objectives.