Energy Transition

Energy transition refers to a structural shift in the energy sector from fossil-fuel-based systems of energy production and consumption—including oil, natural gas, and coal—to renewable energy sources like wind, solar, and lithium-ion battery storage. In the context of economic development, this transition is governed by the Environmental Kuznets Curve (EKC) hypothesis, which postulates that economic growth initially leads to environmental degradation, but after reaching a certain level of per capita income, structural changes and cleaner technologies improve environmental quality.

The Energy Trilemma

Developing economies like India navigate the “Energy Trilemma,” a core macroeconomic framework requiring a balance between three competing objectives:

• Energy Security: Ensuring the uninterrupted availability of energy sources at an affordable price, mitigating risks related to import dependence.
• Energy Equity: Providing affordable, reliable, and modern energy access to all strata of society, particularly rural and low-income populations.
• Environmental Sustainability: Mitigating greenhouse gas (GHG) emissions, reducing carbon intensity, and combating ecological degradation.

India’s International Commitments and Nationally Determined Contributions (NDCs)

Evolution of COP Commitments

India’s energy transition targets are legally anchored in its climate pledges under the United Nations Framework Convention on Climate Change (UNFCCC).

• COP21 (Paris Agreement, 2015): India committed to reducing the emissions intensity of its Gross Domestic Product (GDP) by 33% to 35% by 2030 from 2005 levels, and achieving 40% cumulative electric power installed capacity from non-fossil fuel-based energy resources by 2030.
• COP26 (Glasgow, 2021) – The Pancamrit Pledges: India updated its climate targets with a five-fold strategy, committing to hit net-zero emissions by 2070, increase non-fossil energy capacity to 500 GW by 2030, and meet 50% of its energy requirements from renewable energy by 2030.
• COP28 (Dubai, 2023) – Global Stocktake: India aligned with global goals to triple renewable energy capacity globally by 2030 and double the global rate of energy efficiency improvements, while maintaining its position on the phasedown (rather than phaseout) of unabated coal power.

Updated NDC Targets (2022-2030)

In August 2022, India formally ratified its updated First Nationally Determined Contributions, translating the Pancamrit goals into quantifiable, policy-linked targets:

• Emissions Intensity Reduction: A commitment to reduce the emissions intensity of its GDP by 45% by 2030 from the 2005 baseline.
• Non-Fossil Installed Capacity: Achieving 50% cumulative electric power installed capacity from non-fossil fuel-based energy resources by 2030, utilizing non-fossil sources like solar, wind, biomass, hydro, and nuclear.
• Carbon Sink Creation: Creating an additional carbon sink of 2.5 to 3 billion tonnes of CO2​ equivalent through additional forest and tree cover by 2030.

Sectoral Architecture of India’s Renewable Energy Expansion

Solar and Wind Energy Trajectory

Solar power acts as the primary driver of India’s grid capacity expansion. The transition utilizes two distinct installation architectures: grid-connected utility-scale solar parks and decentralized rooftop solar systems. Wind energy deployment is shifting from onshore wind farms toward offshore wind potential along the coastlines of Gujarat and Tamil Nadu. To counter the intermittent nature of solar and wind generation, the government mandates Hybrid Wind-Solar Policies and introduces Standalone Energy Storage Systems (ESS) tenders to ensure round-the-clock (RTC) power supply.

Hydropower and Nuclear Energy Benchmarks

• Large Hydro Projects (LHPs): In 2019, the government declared large hydropower projects (capacity above 25 MW) as a Renewable Energy source, allowing them to benefit from Renewable Purchase Obligations (RPOs). This reclassification expanded India’s statistical renewable energy share.
• Pumped Storage Projects (PSPs): PSPs function as hydro-based energy storage systems. They pump water to an upper reservoir during surplus off-peak hours and release it to generate electricity during peak-demand hours, acting as a clean grid-balancing tool.
• Nuclear Power Expansion: Nuclear energy provides base-load, non-fossil power. India is scaling up its domestic pressurized heavy water reactors (PHWRs) and fast breeder programs to provide a steady low-carbon foundation that complements variable renewables.

Bioenergy and Waste-to-Energy Mechanics

Bioenergy infrastructure reduces agricultural externalities like stubble burning while diversifying the fuel mix. The National Bioenergy Programme promotes the conversion of surplus biomass, agricultural residue, and industrial organic waste into energy through co-firing in thermal power plants and Compressed Bio-Gas (CBG) production.

Institutional, Legislative, and Regulatory Frameworks

Energy Conservation (Amendment) Act, 2022

This legislative amendment updated the Energy Conservation Act, 2001, introducing statutory mechanisms to enforce decarbonization:

• Mandatory Non-Fossil Fuel Consumption: Empowers the government to mandate the use of non-fossil sources (including green hydrogen, green ammonia, biomass, and ethanol) for energy and feedstock by designated consumers in carbon-intensive industries.
• Indian Carbon Market (ICM): Authorizes the Central Government to formulate a Carbon Credit Trading Scheme. This framework transitions India from voluntary carbon markets to a compliance-based domestic market, capping industrial emissions and permitting the trade of Carbon Credit Certificates (CCCs).

Renewable Purchase Obligations (RPOs) and Energy Storage Obligations (ESOs)

State Electricity Regulatory Commissions (SERCs) mandate power distribution companies (DISCOMs) to purchase a designated minimum percentage of their total electricity from renewable sources. The Ministry of Power issues long-term trajectories for Wind RPO, Hydro RPO, Distributed RE RPO, and Other RPO. Additionally, Energy Storage Obligations (ESOs) are legally enforced to incentivize the deployment of grid-scale battery infrastructure.

Renewable Energy Certificates (RECs)

RECs are market-based instruments traded on power exchanges. One REC represents one megawatt-hour (MWh) of electricity generated from an eligible renewable energy source. DISCOMs and captive power consumers who lack direct geographical access to physical renewable energy assets purchase RECs to fulfill their statutory RPO targets.

Key Government Schemes and Interventions

National Green Hydrogen Mission (NGHM)

Launched with a budgetary outlay of ₹19,744 crore, the mission targets the production of 5 Million Metric Tonnes (MMT) of Green Hydrogen per annum by 2030, alongside an associated renewable energy capacity addition of roughly 125 GW. It deploys the Strategic Interventions for Green Hydrogen Transition (SIGHT) program, which provides financial incentives for the domestic manufacturing of electrolyzers and the direct production of green hydrogen.

PM-Surya Ghar: Muft Bijli Yojana

A central rooftop solar scheme designed to solarize 10 million households across India. The program provides direct capital subsidies up to 60% of the system cost for installations up to 2 kW capacity, alongside collateral-free, low-interest loan options. It aims to reduce DISCOM subsidy burdens by transitioning residential consumers into “prosumers” who generate their own electricity and export surplus power to the grid.

SATAT (Sustainable Alternative Towards Affordable Transportation)

An initiative under the Ministry of Petroleum and Natural Gas targeting the establishment of Compressed Bio-Gas (CBG) production plants. The program incentivizes entrepreneurs to supply CBG to oil marketing companies for automotive and industrial retail networks, replacing imported Liquefied Natural Gas (LNG) and compressed natural gas (CNG).

Ethanol Blending Programme (EBP)

The EBP addresses emissions and import dependence by blending bio-ethanol derived from sugarcane, damaged food grains, and agricultural waste with motor spirit (petrol). India met its intermediate target of 10% blending and advanced its target for 20% ethanol blending (E20) to the 2025-2026 supply year.

Faster Adoption and Manufacturing of (Hybrid &) Electric Vehicles (FAME) and PM E-Drive

• FAME India Scheme: Provided demand-side demand incentives and upfront capital subsidies for electric two-wheelers, three-wheelers, passenger vehicles, and buses, alongside building public charging infrastructure.
• PM E-Drive Scheme: Advanced the EV transition by expanding subsidies for electric two-wheelers, e-ambulances, e-trucks, and mass public transport options, while funding charging infrastructure through a dedicated payment security mechanism.

Production Linked Incentive (PLI) Schemes

To reduce import dependence on critical transition components, the government deployed multi-billion dollar PLI schemes targeting two vital supply chains:

• National Programme on High-Efficiency Solar PV Modules: Incentivizes the domestic manufacture of integrated silicon ingots, wafers, solar cells, and high-efficiency photovoltaic modules.
• National Programme on Advanced Chemistry Cell (ACC) Battery Storage: Promotes the establishment of domestic giga-factories for advanced battery cells, targeting the supply chains for electric vehicles and grid-scale storage.

Comparative Performance and Statistical Matrix

Status of Installed Power Generation Capacity in India

Export to Sheets

Macroeconomic Challenges and Structural Bottlenecks

Grid Integration and Intermittency Issues

Renewable energy sources like solar and wind suffer from variable supply profiles. The sudden injection or withdrawal of renewable power causes voltage fluctuations and grid frequency deviations. Managing this requires substantial investments in advanced forecasting models, dynamic spinning reserves (primarily gas or hydro plants), and utility-scale Battery Energy Storage Systems (BESS), which remain capital-intensive due to cell manufacturing costs.

Critical Mineral Vulnerabilities

The energy transition shifts import dependencies from fossil fuels to critical minerals like lithium, cobalt, nickel, graphite, and rare earth elements (REEs). These minerals are essential for manufacturing electric vehicle batteries, wind turbines, and solar cells. Supply chains for these minerals are highly geographically concentrated, with refining capacity largely controlled by China. This exposes India to geopolitical risks and supply disruptions.

Financial Health of DISCOMs and Regulatory Assets

Power Distribution Companies (DISCOMs) remain a weak link in the energy value chain. Persistent financial losses, delayed subsidy disbursements by state governments, and high Aggregate Technical and Commercial (AT&C) losses restrict their capacity to sign long-term Power Purchase Agreements (PPAs) with renewable developers or invest in smart grid upgrades.

The “Just Transition” Dilemma

A complete shift away from coal impacts the political economy of India’s coal-bearing states, including Jharkhand, Odisha, Chhattisgarh, and West Bengal. Millions of livelihoods depend directly or indirectly on coal mining, Indian Railways relies on coal freight cross-subsidies to keep passenger fares low, and state public sector banks hold significant exposure to thermal power assets. A “Just Transition” requires financing mechanisms to retrain labor, reclaim mined lands, and replace regional economic activity without inducing fiscal distress.

Key Energy Transition Concepts and Trivia for UPSC Prelims

• Inter-State Transmission System (ISTS) Charges Waiver: To promote renewable energy trading, the Ministry of Power provides a long-term waiver of inter-state transmission charges for solar and wind power projects, lowering the cost of transmitting green energy from resource-rich western and southern states to energy-deficient regions.
• Green Energy Open Access Rules: Regulations that lower the threshold for open access transaction approvals from 1 MW to 100 kW for green energy. This allows smaller commercial and industrial consumers to bypass local DISCOMs and purchase renewable energy directly from independent power producers.
• Critical Minerals Partnership & KABIL: Khanij Bidesh India Limited (KABIL) is a joint venture formed by three public sector enterprises (NALCO, HCL, and MECL) to identify, acquire, develop, and process strategic and critical minerals abroad, securing India’s supply chains for the energy transition.
• Green Energy Corridors (GEC): A dedicated transmission infrastructure project designed to synchronized electricity produced from renewable sources with the conventional national grid, minimizing transmission losses across intra-state and inter-state lines.
• Capacity Factor / Capacity Utilization Factor (CUF): The ratio of the actual electrical energy output of a plant over a given period to its maximum possible output. Renewable energy sources like solar have a low CUF (19-22%) compared to base-load thermal power plants (65-75%), meaning a higher total installed capacity of renewables is required to match fossil fuel generation.