From Risk to Resilience - Integrating ESG In Investment Decisions
The global transition to clean energy is gathering pace, but financing solar at scale remains one of the toughest challenges. Africa, with some of the world’s richest solar resources, is also where this gap is most pronounced. Projects are abundant, but capital often hesitates - citing risks, fragmentation, and lack of bankable structures.
The story of Nuru Energy in the Democratic Republic of Congo makes the same point. Despite having strong investor backing - including global names in climate and impact finance - the project struggled to move forward. The issue wasn’t capital scarcity, but the lack of affordable risk mitigation solution that could de-risk investments and accelerate execution.
Across Africa, this story repeats itself. Despite the continent’s vast solar potential and more than 660 million people lacking stable access to electricity, Africa today accounts for just ~1% of global installed solar capacity and receives less than 1% of global solar investment.
This is where the Global Solar Facility (GSF) comes in. Conceived with the International Solar Alliance (ISA) and structured by ProsperETÉ, the facility was designed to do more than finance a few projects. It was built to be a global blueprint: starting in Africa, but ready to be replicated across Asia, Latin America, and other emerging regions. The guiding principle throughout was simple - think scale, manage risk, and execute with discipline.
Why ESG Matters Across the Investment Ecosystem
Family offices, especially locally based or regional ones from emerging markets, often manage wealth that is deeply tied to personal and regional legacies. For these investors, ESG is not merely a compliance checkbox but a way to align their investments to their reputation and values. A leading family office from Singapore – the Tsao Family Office – states that their raison d’etre is ‘Investing to Make Things Better’. They believe that there is never a state of affairs that cannot be improved and, therefore, they strive to create a better social, environmental and financial outcome with their capital. In contexts like India, historically, leading business-owners have focused their philanthropic initiatives on improving the lives of the communities that serve, live around or are impacted by their businesses. However, this is gradually shifting towards a more impact investing approach. A 2025 E&Y report found Indian family offices are moving beyond conventional philanthropy and increasingly directing parts of their investable capital toward initiatives that deliver both financial returns and positive social impact. Businesses in industries such as carpets or textiles have made impact investments to support local artisans and women-led ventures. Going beyond their immediate ecosystem, Rainmatter, the family office of Zerodha’s founders (a leading fin-tech platform), back companies in fintech, climate, health etc and clearly say that they are “patient long-term investors and aren't in it for quick exits”. The EY report also notes that there is a noticeable generational shift in philanthropic interests. Younger members of ultra-high-net-worth Indian families are broadening their focus to include pressing issues like climate change, gender equality, and social injustice, alongside traditional causes such as education and healthcare.
Institutional investors, including pension funds, sovereign wealth funds, and endowments, must balance growth opportunities with the regulatory and systemic risks unique to emerging markets — such as climate vulnerability, governance gaps, and regulatory uncertainty. ESG integration helps institutional investors not only mitigate these risks but also align with the rising global standards demanded by co-investors (especially the multilateral and bi-lateral development finance institutions (DFIs) and regulators.
Several leading institutional investors globally have made clear commitments to integrating ESG considerations into their investment strategies. Norway’s Government Pension Fund Global is a widely recognized ESG leader, actively excluding companies that violate ethical or environmental standards. Pension funds like Philips Pensioenfonds have taken steps to align their emerging market investments with the UN Sustainable Development Goals (SDGs). Major insurance and pension providers such as Aviva, Zurich, Swiss Re, and MAPFREhave committed to aligning their investment and underwriting portfolios with net-zero targets, often exiting high-carbon sectors like coal. Sovereign wealth funds like Singapore’s Temasek and GIC have established dedicated sustainability platforms and funds focused on climate and green infrastructure.
Among the Indian institutional investors as well, there is a growing trend towards adopting ESG principles in their investment strategies. ICICI Prudential Life Insurancewas the first Indian insurer to sign the UN Principles for Responsible Investment (UNPRI) and has launched a dedicated ESG-focused fund. Similarly, Tata AIA offers a Sustainable Equity Fund through its ULIP products, targeting environmentally and socially responsible businesses. The Life Insurance Corporation of India (LIC) has also embedded ESG goals into its operations, claiming contributions to 14 of the 17 UN Sustainable Development Goals (SDGs).
Spanning the ESG integration spectrum, these actions reflect a broader shift among institutional investors toward ESG integration as both a risk management tool and as a value creation tool, including in response to rising stakeholder and regulatory expectations.
For impact funds and investors, who seek intentional and measurable ESG outcomes, ESG integration is part of their very DNA. Applying ESG frameworks helps them track and measure intended outcomes; it also strengthens the impact thesis and facilitates access to blended finance by aligning with the standards of DFIs, philanthropic capital, and other sources of catalytic capital.
Several well-known global impact investment funds have emerged as leaders in combining financial returns with measurable social and environmental impact. Acumen, a pioneer in the space, invests in early-stage enterprises tackling poverty in sectors like healthcare, agriculture, and clean energy across South Asia and Africa. As per its 2025 annual report, under its newly scaled Hardest‑to‑Reachinitiative, Acumen-backed energy companies reached 165,472 people in 2024, of whom 83% accessed electricity for the first time. LeapFrog, which focuses on financial inclusion and healthcare closed its $1bn+ Fund IV in 2024 which aims to serve 100 million emerging consumers and producers to “build better lives” and has already reached 24 million through five initial companies. Blue Orchard, a major impact investor in microfinance and climate reported that the BlueOrchard Microfinance Fund (BOMF) in 2024 reached 52 countries and supported over 900,000 MSMEs in that year alone, with strong gender and rural inclusion: ~77% of end‑borrowers were women, and 66% were from rural areas. ResponsAbility, channels capital into inclusive finance, renewable energy, and sustainable agriculture in developing countries. In 2024, they report having enabled access to financial services for ~50 million people in emerging markets and achieved >1 megatonne CO₂ emissions saved in the preceding year.These funds not only deliver capital to sectors where it is most needed but also prioritize rigorous impact measurement, aligning with global ESG and SDG goals.
In India, the National Investment and Infrastructure Fund (NIIF) states clearly that it seeks to enable responsible growth through sustainable investments. It released its first consolidated ESG and Impact Report 2024, capturing the outcomes of direct investments and indirect investments through NIIF’s portfolio funds. Among other metrics, it reports that 25 M+ tCO2e GHG emissions were avoided, ~1.3 million+ tonnes of solid waste processed, ~340,000 individuals provided with affordable housing due to NIIF investments in FY2024.
Costs of ESG Integration
ESG integration does come with a range of costs, both direct and indirect. These costs depend on the depth of integration, investment strategy, size of the firm, and data availability. Summarised in the table below is a summary of the various costs involved in integrating ESG into investment decision-making:
While there are costs, ESG integration helps mitigate long-term risks, improve resilience, deliver better risk-adjusted returns and in many cases, create measurable positive impact on people and the planet. As such, many asset managers view the upfront ESG cost as a strategic investment in long-term value creation. The distinctive advantages of incurring these costs include:
Sustainable and Measurable Impact: Invested capital is used to avoid harm/actively support sustainable outcomes, including the active monitoring of the positive outcomes generated by the solution.
Financial Performance: Many impact investments generate competitive financial returns, disproving the myth that there is always a trade-off between profit and purpose. Over 90% of impact investors report that financial performance has met or surpassed expectations, particularly in private equity and venture capital.
Positive Feedback Loop: When investments in such assets make a financial return, they demonstrate the success of such strategies focused on creating positive social and environmental outcomes, thereby attracting more investments into these sectors, in turn, giving investors the opportunity to amplify positive impacts over time.
Market Access and Innovation: Fosters innovation in sectors such as clean energy, microfinance, healthcare, and sustainable agriculture, and creates growth opportunities in markets often overlooked by traditional financing.
6. A Blueprint Beyond Africa
While Africa is the starting point, the GSF was never meant to stop there. Its structure is deliberately replicable. The same blended finance model, governance design, and project pipeline approach can be applied in Asia, Latin America, and Small Island States.
In this sense, the GSF is more than a fund - it is a financing model for the global energy transition, one that takes lessons from Africa facility and scales them worldwide.
Conclusion: Scale Meets Structure
ProsperETÉ’s journey with the Global Solar Facility is not a one-off project but part of a larger legacy. Over the years, our team has successfully set up eight investment and financing platforms — from India’s first infrastructure-focused fund with SBI Macquarie to pioneering programs such as Scaling Solar Africa. Each initiative reinforced a core belief: when scale meets structure, and risk meets resilience, global capital flows to climate solutions.
The Global Solar Facility embodies this belief — starting in Africa, but with the potential to transform solar investment across the world.