Enhancing India's Non-Fossil Energy Capacity Through Storage Solutions

Nationally Determined Contributions (NDCs) are climate action plans submitted by countries under the Paris Agreement, outlining their commitments to reduce greenhouse gas emissions and adapt to climate change. These targets are updated every five years to reflect increasing ambition. Unlike binding emission cuts, NDCs are nationally tailored, allowing countries to align climate goals with developmental priorities.

India’s updated NDCs for 2035 reflect a gradual but significant enhancement of its climate commitments. Key targets include:

• 60% installed electricity capacity from non-fossil fuel sources (up from 50% earlier)
• 47% reduction in emissions intensity of GDP (up from 45%)
• Creation of a carbon sink of 3.5–4 billion tonnes of CO2 through forest and tree cover

India’s emphasis on emissions intensity reduction—that is, reducing emissions per unit of GDP—stems from its developmental context and equity considerations in global climate governance. As a developing country with relatively low per capita emissions, India argues that it should not be required to cap its total emissions at the cost of economic growth and poverty alleviation.

This approach is rooted in the principle of Common But Differentiated Responsibilities (CBDR), which recognizes that developed countries have historically contributed more to global emissions. While India is among the top emitters in absolute terms, its per capita emissions remain significantly below the global average. Therefore, focusing on efficiency improvements allows India to grow economically while still contributing to global climate goals.

Additionally, intensity-based targets provide flexibility. As India expands infrastructure, manufacturing, and energy access, total emissions may rise, but improved efficiency and cleaner technologies can reduce the carbon footprint per unit of output. For example, increasing renewable energy capacity and improving industrial energy efficiency directly lower emissions intensity. Thus, this strategy balances climate responsibility with developmental imperatives, though critics argue that it may delay deeper decarbonisation in the long run.

Achieving a high share of non-fossil fuel capacity requires more than just installing renewable energy infrastructure; it demands systemic changes in energy storage and grid management. While India has already exceeded its earlier target with over 50% installed capacity from non-fossil sources, only about 25% of actual electricity generation comes from these sources due to intermittency issues.

To bridge this gap, India must invest in:

• Battery energy storage systems (BESS) to store excess solar and wind energy
• Grid modernization to handle variable renewable inputs
• Flexible generation systems such as hydro and gas-based plants for balancing

The gap between installed renewable capacity and actual generation in India is primarily due to technical and infrastructural constraints. Renewable energy sources like solar and wind are inherently intermittent, meaning they do not produce electricity consistently throughout the day or year. Without adequate storage, surplus energy generated during peak conditions cannot be utilized later.

Another major factor is the lack of sufficient battery storage infrastructure. India currently lacks large-scale storage systems capable of capturing and redistributing renewable energy efficiently. This leads to curtailment, where excess renewable power is simply not used. Additionally, transmission bottlenecks and outdated grid systems limit the ability to transport electricity from renewable-rich regions to demand centres.

Policy and financial challenges also contribute. Investments in storage and grid modernization have lagged behind renewable capacity expansion. For example, while solar parks have expanded rapidly, corresponding investments in grid flexibility have not kept pace. This results in a structural inefficiency where installed capacity does not translate into usable energy. Addressing these issues is critical for ensuring that India’s renewable targets translate into real emission reductions and energy security.

India’s updated NDCs for 2035 represent a measured increase in ambition, aligning with global expectations while safeguarding domestic priorities. On the positive side, the targets are realistic and achievable, given that India has already surpassed its earlier renewable capacity goals. The focus on emissions intensity and carbon sinks reflects a pragmatic approach that balances climate action with economic growth.

However, there are notable limitations. Critics argue that the targets may lack sufficient ambition compared to developed economies that are committing to absolute emission reductions. Additionally, the emphasis on installed capacity rather than actual generation can create a misleading picture of progress. Without addressing storage and grid challenges, increased capacity may not translate into meaningful emission reductions.

Furthermore, geopolitical factors such as the West Asian conflict highlight India’s continued dependence on fossil fuels, particularly oil and gas. This underscores the need for faster transition to energy independence. In conclusion, while India’s NDCs are credible and development-oriented, their effectiveness will depend on implementation, technological upgrades, and sustained policy commitment.

The West Asian conflict has exposed the vulnerabilities associated with dependence on fossil fuel imports. As oil prices surged due to supply disruptions, countries like India faced increased energy costs, inflationary pressures, and potential threats to energy security. This situation underscores the strategic importance of transitioning to domestic renewable energy sources.

For example, India imports a significant portion of its crude oil requirements. Any geopolitical disruption in the Middle East directly impacts fuel prices, transportation costs, and overall economic stability. In contrast, renewable energy sources such as solar and wind are domestically available and not subject to global supply shocks. However, their effective utilization requires robust storage and grid systems.

The conflict serves as a real-world case study demonstrating that energy transition is not just an environmental imperative but also a matter of national security and economic resilience. By investing in renewable infrastructure, storage technologies, and grid modernization, India can reduce its exposure to external shocks and build a more sustainable energy future.