Financing Frameworks and Models for Renewable Energy Investment: A Systematic Literature Review

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:Provides a comprehensive classification of renewable energy financing models and identifies research gaps for future studies.

🏢実務担当者:Offers a structured framework to select appropriate financing mechanisms based on project context and market conditions.

🏛政策担当者:Highlights the role of institutional quality and regulatory stability in shaping effective financing strategies for renewable energy.

<title>Abstract</title> <p>The transition to renewable energy requires substantial capital to support infrastructure, technology deployment, and grid integration, yet financing constraints remain a major barrier, particularly in developing economies. To address this, governments, development partners, and private investors have introduced diverse financing frameworks such as project finance, blended finance, green bonds, public–private partnerships, concessional funding, and results-based mechanisms to mobilise capital, allocate risk, and enhance project viability. Despite growing scholarship, existing literature is fragmented across disciplines, limiting a comprehensive understanding of how these models are conceptualised, classified, and evaluated. This systematic literature review synthesises scholarly evidence on financing frameworks used in renewable energy investments, examining their typologies, strengths, limitations, and contextual effectiveness, while identifying methodological and theoretical research gaps. The review applies a rigorous, transparent methodology guided by established systematic review protocols. Searches were conducted across major academic databases, including Scopus, Web of Science, ScienceDirect, and Google Scholar, using structured keyword combinations related to renewable energy finance and investment models. Eligible studies include peer-reviewed and policy-relevant research focused on financing structures, while purely technical or methodologically unclear works were excluded. Extracted data cover financing types, theoretical approaches, geographic focus, analytical methods, and outcomes, and are synthesised thematically to develop comparative classifications such as public, private, hybrid, and market-based models. Findings reveal that dominant financing approaches vary according to institutional quality, regulatory stability, market maturity, and risk environment. Project finance and blended finance prevail in large-scale projects, while instruments such as green bonds and climate funds are more prominent in policy-driven contexts. By consolidating dispersed evidence, this review provides a structured analytical framework useful to scholars, policymakers, and investors, offering insights into effective financing strategies and highlighting priority areas for future research on renewable energy investment.</p>

• Research Square https://doi.org/10.21203/rs.3.rs-10043052/v1first seen 2026-08-06 04:34:14