India's Vision for Net-Zero: The Climate Finance Challenge

Key findings: The NITI Aayog study lays out India’s climate strategy up to 2070, aiming for a net-zero emission pathway while enabling a Viksit Bharat by 2047. It estimates that cumulative investment needs under a net-zero scenario would reach $22.7 trillion</strong> by 2070, compared to$14.7 trillion under current-policy scenarios. This implies an average annual investment of around $500 billion, significantly higher than the current annual investment of$135 billion.

Investment gaps: Even under optimistic domestic mobilization, India could raise only $16.2 trillion, leaving a financing gap of approximately$6.5 trillion. Bridging this gap would require international capital, concessional finance, and grants. The study identifies high capital costs, limited long-term concessional finance, and uneven project pipelines as structural constraints that limit project viability, particularly in capital-intensive sectors like energy storage, green hydrogen, and industrial decarbonisation.

Sectoral challenges: While renewable power deployment has accelerated, progress in grid expansion, storage capacity, and clean industrial technologies remains slow. Rapid urbanization, resource constraints, and the growing demand for skilled human capital further complicate the transition, emphasizing the need for targeted investments in resilient infrastructure, green technologies, and workforce development to achieve India’s long-term climate objectives.

Importance of bridging the financing gap: India faces an estimated $6.5 trillion financing gap even under optimistic domestic capital mobilisation. Closing this gap is essential because capital-intensive sectors such as energy storage, green hydrogen, and industrial decarbonisation cannot scale without long-term, affordable financing. Without sufficient investment, the pace of transition will be slow, potentially delaying India’s net-zero target.

Implications for economic development: The financing gap affects both mitigation and adaptation measures. Domestic financing is heavily skewed toward mature mitigation sectors like solar and wind, while adaptation, urban infrastructure, and hard-to-abate industries remain underfunded. Insufficient funding can lead to continued environmental stress, inefficient infrastructure development, and unequal access to green technologies across states, affecting both equity and growth.

Global context: International capital, concessional finance, and grants are therefore critical. They reduce the cost of capital, enhance project viability, and help India attract private investment. Bridging the financing gap ensures that India can implement a holistic climate strategy encompassing mitigation, adaptation, and resilient infrastructure, thereby aligning domestic growth with global climate commitments.

Institutional reforms: The study emphasizes reforms such as improved project preparation and implementation capacity at both the central and state levels. Sectoral readiness varies widely, and effective institutions are needed to coordinate investments in clean energy, storage, and industrial decarbonisation. Initiatives like Mission LiFE highlight the importance of demand-side measures, including energy efficiency, behavioral change, and material circularity, which can deliver cost-effective emission reductions.

Financial reforms: On the financing side, the creation of a National Green Finance Institution is proposed to aggregate and channel capital, reduce investment risk, and lower borrowing costs. Other recommendations include expanding blended finance facilities, adopting unified climate-finance taxonomies, and deepening markets for corporate and green bonds. These reforms would mobilize both domestic and international capital, improve access to long-term financing, and incentivize private-sector participation.

Impact: Institutional and financial reforms together create a credible framework for sustained investment, mitigate project risk, and improve sectoral readiness. By addressing both supply-side (financing) and demand-side (institutional and policy) constraints, India can accelerate its transition to a low-carbon economy while ensuring resilience and inclusivity.

High cost of capital: A significant barrier is the high cost of capital, which makes projects in energy storage, green hydrogen, and industrial decarbonisation financially challenging. Limited long-term concessional finance reduces project viability and deters private-sector participation.

Weak project pipelines: Uneven readiness across states and sectors leads to gaps in project preparation and implementation capacity. While renewable energy deployment has scaled rapidly, areas like grid expansion, storage, and clean industrial technologies lag behind, reflecting infrastructural and technical bottlenecks.

Global and domestic uncertainties: Geopolitical tensions, rising protectionism, fragmented global supply chains, and inconsistent domestic policies further complicate investment flows. Additionally, urbanization pressures, resource constraints, and insufficient skilled human capital necessitate targeted investments in resilient infrastructure and workforce development. These structural challenges must be addressed to enable efficient mobilization of both domestic and international capital for a credible climate transition.

Skewed allocation: India’s climate finance is heavily skewed toward mature mitigation sectors such as solar and wind, while adaptation, urban infrastructure, MSMEs, and hard-to-abate industries remain underfunded. According to the Economic Survey 2025-26, around 83% of mitigation finance and 98% of adaptation finance comes from domestic sources, reflecting a reliance on internal mobilization.

Implications: This imbalance limits India’s capacity to address climate risks comprehensively. Adaptation measures, essential for climate-resilient infrastructure and vulnerable populations, may be underfunded, while mitigation gains may not fully translate into inclusive development. The focus on domestic finance also implies higher costs of capital and limited access to concessional or international funding.

Way forward: To achieve a holistic climate strategy, finance must be diversified across sectors and geographies, with greater participation from international capital, blended finance instruments, and concessional funding. Developing a National Green Finance Institution and unified taxonomies can facilitate capital flows, ensuring that mitigation and adaptation objectives are both adequately funded.

Renewable energy: India has scaled up solar and wind power rapidly, reflecting high sectoral readiness and policy support. Investment pipelines, regulatory clarity, and technology adoption have enabled large-scale deployment, demonstrating successful mitigation-focused intervention.

Energy storage and industrial decarbonisation: Progress in grid expansion, storage capacity, and clean industrial technologies remains limited. These sectors face challenges including high capital costs, limited concessional financing, and weak project pipelines, underscoring the need for institutional reforms and financial innovations.

Significance: Sectoral disparities highlight that achieving net-zero requires more than deploying renewable energy; systemic investment is needed across the energy, industrial, and infrastructure sectors. Targeted interventions in lagging sectors are critical to ensure a holistic transition and to avoid bottlenecks that could impede India’s long-term climate and economic objectives.

Scenario analysis: Even if domestic capital is mobilized effectively, the financing gap of around $6.5 trillion under a net-zero scenario would persist without international concessional finance. High-cost domestic financing would increase the cost of capital, making capital-intensive sectors like green hydrogen, energy storage, and industrial decarbonisation less viable.

Implications: The pace of climate transition would slow, delaying infrastructure and technology deployment. Adaptation and resilience measures, particularly in vulnerable regions and sectors, might remain underfunded. Reliance solely on domestic sources could also crowd out other productive investments in the economy, creating trade-offs between climate action and growth objectives.

Policy response: India would need to enhance blended finance mechanisms, strengthen green bond markets, and create institutional frameworks like a National Green Finance Institution to attract international capital and concessional financing. Such measures would reduce risks, lower borrowing costs, and enable a more robust and timely transition to a low-carbon economy.