The literature on Corporate Social Responsibility (CSR) in the context of supply chain sustainability within the renewable energy sector has witnessed significant growth in recent years. Researchers have explored various dimensions of CSR, including its impact on environmental performance, social equity, economic viability, and stakeholder engagement. This section presents a comprehensive review of key studies examining the influence of CSR on supply chain sustainability in renewable energy, highlighting recent developments and emerging trends [
16,
17]. CSR initiatives in the renewable energy sector are often driven by a combination of regulatory requirements, market dynamics, and ethical considerations [
18]. As noted by Porter and Kramer [
20], companies increasingly view CSR as a source of competitive advantage, rather than just a regulatory compliance issue. In the renewable energy industry, CSR practices are integral to addressing the sector's unique environmental challenges, such as reducing carbon emissions, minimizing ecological footprints, and promoting biodiversity conservation. Moreover, CSR enables companies to meet the growing expectations of stakeholders, including investors, customers, employees, and communities [
21]. Environmental sustainability is a central focus of CSR efforts in the renewable energy sector, given the industry's role in mitigating climate change and reducing reliance on fossil fuels. Studies have shown that CSR practices positively influence environmental performance, leading to reduced carbon emissions, energy conservation, and adoption of cleaner technologies. For instance, Li et al. found that renewable energy companies with strong CSR commitments tend to have lower carbon footprints and higher energy efficiency compared to their counterparts. Similarly, Zhang et al. demonstrated that CSR-driven innovation in renewable energy supply chains contributes to the development and adoption of sustainable energy solutions, such as solar panels, wind turbines, and energy storage systems. In addition to environmental considerations, CSR in the renewable energy sector encompasses social dimensions aimed at promoting social equity, human rights, and community development. Companies are increasingly recognizing the importance of engaging with local communities, respecting indigenous rights, and ensuring fair labor practices throughout the supply chain. Brown and Green emphasized the role of community engagement in renewable energy projects, highlighting the significance of stakeholder consultation, transparent decision-making, and equitable benefit-sharing. Moreover, CSR initiatives often involve investments in education, healthcare, and infrastructure development to enhance the well-being of communities affected by energy projects [
26]. The economic implications of CSR in renewable energy supply chains are also significant, as companies seek to balance profitability with social and environmental responsibilities. While some critics argue that CSR may impose additional costs on businesses, several studies have shown that CSR can yield long-term economic benefits, including enhanced brand reputation, increased market share, and improved financial performance. Chen et al. demonstrated a positive relationship between CSR engagement and financial performance in renewable energy firms, attributing it to factors such as improved stakeholder relations, reduced regulatory risks, and enhanced operational efficiency. Similarly, Smith and Johnson found that CSR-driven innovation in supply chains leads to cost savings, revenue generation, and competitive advantage for renewable energy companies. Stakeholder engagement is a fundamental aspect of CSR in the renewable energy sector, as companies seek to build trust, transparency, and legitimacy with a wide range of stakeholders. Investors play a crucial role in shaping companies' CSR practices, as they increasingly consider environmental, social, and governance (ESG) factors in their investment decisions. Anderson and Lee highlighted the importance of CSR in attracting investment from socially responsible investors (SRI), who prioritize sustainability criteria in their portfolio selection. Moreover, customers are becoming more environmentally conscious and socially aware, driving demand for renewable energy products and services that align with their values [
30]. As a result, companies are investing in CSR initiatives to differentiate their brands, build customer loyalty, and gain a competitive edge in the market. Regulatory frameworks also play a significant role in shaping CSR practices in the renewable energy sector, as governments seek to promote sustainable development, mitigate environmental risks, and ensure corporate accountability. Policy instruments such as carbon pricing, renewable energy targets, and emissions trading schemes incentivize companies to invest in clean energy technologies and reduce their carbon footprint. Williams and White emphasized the role of government in promoting CSR through regulatory mechanisms, public-private partnerships, and stakeholder engagement platforms. Moreover, international initiatives such as the Paris Agreement and the Sustainable Development Goals (SDGs) provide a global framework for addressing climate change, poverty alleviation, and social justice, driving companies to align their CSR strategies with broader sustainability objectives [
32]. Collaboration and partnerships are essential for advancing CSR goals in the renewable energy sector, as companies work together with suppliers, customers, NGOs, and government agencies to address complex sustainability challenges. Consortia such as the Renewable Energy Buyers Alliance (REBA) bring together corporations, utilities, and renewable energy developers to accelerate the transition to clean energy and promote responsible sourcing practices [
33]. Similarly, multi-stakeholder initiatives such as the Roundtable on Sustainable Biomaterials (RSB) facilitate dialogue, capacity-building, and knowledge-sharing among diverse stakeholders in the biomass energy sector [
34]. By fostering collaboration and collective action, these initiatives enhance the effectiveness and impact of CSR efforts across the renewable energy supply chain. Emerging technologies such as blockchain, Internet of Things (IoT), and artificial intelligence (AI) are revolutionizing CSR practices in the renewable energy sector by enhancing transparency, traceability, and accountability. Blockchain technology enables secure and transparent tracking of renewable energy certificates (RECs), ensuring the integrity and authenticity of renewable energy transactions [
35]. IoT devices can monitor and optimize energy consumption, enabling companies to identify inefficiencies, reduce waste, and improve resource management [
36]. AI-driven analytics provide insights into supply chain risks, vulnerabilities, and opportunities, enabling companies to make data-driven decisions and mitigate environmental and social impacts [
37]. In summary, the literature on CSR in the renewable energy sector highlights the multifaceted nature of CSR and its significant implications for supply chain sustainability. Environmental, social, economic, and governance dimensions of CSR are interconnected and mutually reinforcing, driving companies to adopt comprehensive and integrated CSR strategies. As the renewable energy industry continues to grow and evolve, the role of CSR in shaping sustainable supply chains will become increasingly critical. Future research should focus on addressing knowledge gaps, developing practical tools and frameworks, and fostering collaboration among stakeholders to advance CSR goals and achieve meaningful impact on sustainability. Ethical considerations play a significant role in shaping CSR practices in the renewable energy sector, as companies navigate complex ethical dilemmas related to resource extraction, land use, and human rights. Research by Crane and Matten emphasizes the importance of ethical leadership and corporate governance in guiding responsible decision-making and fostering a culture of integrity within organizations. Moreover, studies by Moon and Vogel underscore the ethical imperative for companies to uphold human rights standards, respect indigenous rights, and mitigate social and environmental risks in their operations. By integrating ethical principles into CSR strategies, companies can enhance their credibility, trustworthiness, and long-term viability in the renewable energy industry. Supply chain transparency is another critical area of focus in CSR research, as companies seek to improve visibility and accountability throughout their supply chains. Transparency enables companies to trace the origins of raw materials, monitor supplier performance, and identify areas for improvement in environmental and social practices. Research by highlights the role of transparency in promoting responsible sourcing of materials and reducing the risk of environmental degradation and human rights abuses in supply chains. Moreover, studies by emphasize the importance of collaborative partnerships and information sharing among stakeholders to enhance supply chain transparency and ensure ethical business conduct. Industry-specific challenges pose unique hurdles for CSR implementation in the renewable energy sector, as companies grapple with issues such as land use conflicts, biodiversity conservation, and energy justice. Research by examines the social and environmental impacts of renewable energy projects, highlighting the need for inclusive decision-making processes, community engagement, and equitable distribution of benefits. Moreover, explore the role of renewable energy technologies in promoting energy access, poverty reduction, and social equity in developing countries, emphasizing the importance of context-specific approaches to CSR. Regulatory frameworks and policy incentives play a crucial role in shaping CSR practices and driving industry-wide change in the renewable energy sector. Research by Veldman et al. examines the effectiveness of regulatory interventions such as feed-in tariffs, renewable energy targets, and carbon pricing in promoting sustainable energy development and incentivizing CSR initiatives. Moreover, studies by Delmas and Montiel explore the impact of government policies on corporate environmental performance, highlighting the role of regulatory pressure, market mechanisms, and stakeholder activism in driving companies to adopt greener practices. Consumer attitudes and preferences also influence CSR strategies in the renewable energy sector, as companies respond to increasing demand for environmentally friendly products and services. Research by Du et al. examines consumer perceptions of CSR in the renewable energy industry, highlighting the role of corporate reputation, brand image, and product quality in shaping purchasing decisions. Moreover, studies by Han et al. explore the impact of CSR communication on consumer behavior, emphasizing the importance of transparent and authentic messaging in building trust and loyalty among environmentally conscious consumers.