360° UPSC Mains Analysis

Why is India’s power grid facing its greatest strain at night?

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Flora & Fauna

Great Indian Bustard (Ardeotis nigriceps)
Status: Critically Endangered
Threat: High-voltage transmission lines built to evacuate renewable energy (like solar) from remote desert regions pose a severe collision threat to this heavy-flying bird, which is protected under Schedule I of the Wildlife (Protection) Act, 1972.
Ganges River Dolphin (Platanista gangetica)
Status: Endangered
Threat: Thermal power plants located along the Ganges basin discharge warm water and consume massive volumes of freshwater, altering the river's thermal profile and flow dynamics, which degrades the habitat of this species protected under Schedule I of the Wildlife (Protection) Act, 1972.

Ecology Impact

The increased reliance on coal-based thermal power plants to meet night-time peak demand leads to elevated emissions of sulfur dioxide (SO2), nitrogen oxides (NOx), and particulate matter (PM2.5), which degrade air quality and threaten fragile ecosystems. This highlights the challenge of fulfilling Article 48A of the Constitution of India, which directs the State to protect and improve the environment, as thermal discharges also cause thermal pollution in adjacent aquatic ecosystems.

Science & Tech Angle

The night-time grid strain highlights the 'duck curve' phenomenon, where solar generation drops to zero at sunset while demand peaks, requiring rapid ramping of conventional power. Addressing this requires advanced Battery Energy Storage Systems (BESS) and Pumped Storage Hydropower (PSH) to store daytime solar surplus, alongside smart grid technologies for real-time demand-side management.

Climate Change Link

The surge in peak power demand driven by extreme heatwaves (a direct consequence of global warming) creates a feedback loop where increased air conditioning usage forces greater combustion of coal, rising greenhouse gas emissions. This strains India's progress toward its Nationally Determined Contributions (NDCs) under the Paris Agreement, specifically the target to reduce the emissions intensity of its GDP by 45% by 2030 from 2005 levels.

Sustainable Development

This scenario directly impacts SDG 7 (Affordable and Clean Energy) and SDG 13 (Climate Action) by exposing the vulnerability of a clean energy transition that lacks adequate storage infrastructure. Transitioning to a green economy requires scaling up investments in grid-scale storage and energy efficiency under the Energy Conservation (Amendment) Act, 2022, aligning with the fundamental duty under Article 51A(g) of the Constitution of India to protect and improve the natural environment.

International Frameworks

Paris Agreement
India's updated NDCs commit to achieving 50% cumulative electric power installed capacity from non-fossil fuel-based energy resources by 2030, which is challenged by the lack of round-the-clock (RTC) renewable energy storage.
United Nations Framework Convention on Climate Change (UNFCCC)
The reliance on coal during peak non-solar hours highlights the global challenge of 'phasing down' unabated coal power as discussed in the Glasgow Climate Pact (COP26) and UAE Consensus (COP28).

Sources consulted

AI-generated study aid. Grounded in web research, but verify critical facts against official sources before your exam.

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