Greenwald Limit

Source:  TH Subject: Science and Technology Context: China’s EAST fusion reactor has achieved stable plasma densities up to 65% beyond the Greenwald limit, a long-standing barrier in nuclear fusion research. About Greenwald Limit: What it is? The Greenwald limit is a theoretical density ceiling for plasma in a tokamak (fusion reactor), beyond which the plasma …

India’s First MWh-Scale Vanadium Flow Battery at NTPC NETRA

Source:  BW Subject:  Economy Context: India inaugurated its first MWh-scale Vanadium Redox Flow Battery (VRFB) system of 3 MWh capacity at NTPC NETRA, Greater Noida, marking a breakthrough in long-duration energy storage (LDES) and renewable energy integration. About India’s First MWh-Scale Vanadium Flow Battery at NTPC NETRA: What it is? The Vanadium Redox Flow Battery …

Powering India’s Green Transition and Strategic Self-Reliance

Syllabus: Economy and Minerals  Source:  YT Context: India has launched the National Critical Mineral Mission (2025) to build self-reliance in the exploration, mining, and processing of rare earth and critical minerals that are vital for clean energy, electronics, and defence technologies. About Powering India’s Green Transition and Strategic Self-Reliance: Importance of Rare Earths and Critical …

Explain the comparative advantages and limitations of pumped hydro and battery storage in India’s energy transition. Suggest how both can be developed in parallel.

Topic: Infrastructure: Energy Q6. Explain the comparative advantages and limitations of pumped hydro and battery storage in India’s energy transition. Suggest how both can be developed in parallel. (10 M) Difficulty Level: Medium Reference: DTE Why the question India’s growing emphasis on pumped hydro storage over batteries due to lifecycle, cost, and recycling concerns, highlighted …

Revised Guidelines Under The Biomass Programme

Context: The Ministry of New and Renewable Energy (MNRE) revised guidelines under the Biomass Programme (Phase-I, 2021–26). Aim to streamline clean energy adoption, support MSMEs, and address stubble burning with more flexibility and financial incentives. About Revised Guidelines Under the Biomass Programme: Launched by: MNRE under National Bioenergy Programme Phase-I Term: 2021–22 to 2025–26 Objective: …

CPCB Drafts India’s First Solar Waste Playbook

Syllabus: Pollution Source:  DTE Context: The Central Pollution Control Board (CPCB) released draft guidelines on June 4, 2025, for managing solar photovoltaic (PV) waste under the E-Waste (Management) Rules, 2022. About CPCB Drafts India’s First Solar Waste Playbook: What is Solar Waste? Solar waste refers to end-of-life solar PV modules, panels, or cells discarded from …

White Hydrogen

Source:  TN Context: France has discovered the world’s largest white hydrogen deposit in the Moselle region, estimated at 46 million tons, valued at $92 trillion. Found beneath the soil of Folschviller in the Moselle region. About White Hydrogen: What it is: White hydrogen is naturally occurring pure hydrogen found underground, formed due to geological reactions. …

Rooppur Nuclear Power Plant

Source:  TH Context: The Rooppur Nuclear Power Plant in Bangladesh, a landmark project built with Russian collaboration under Rosatom, has recently faced allegations of irregularities. About Rooppur Nuclear Power Plant: Location: Situated in Rooppur, Ishwardi Upazila, Pabna District. Built by: Constructed by Rosatom, Russia’s state nuclear corporation. River bank: Located along the Padma River. Features: …

UPSC CURRENT AFFAIRS – 22 November 2024

  UPSC CURRENT AFFAIRS – 22 November 2024 covers important current affairs of the day, their backward linkages, their relevance for Prelims exam and MCQs on main articles   InstaLinks :  Insta Links help you think beyond the  current affairs issue and help you think multidimensionally to develop depth in your understanding of these issues. …

Delhi Air Pollution

Syllabus: Air Pollution Source:  TH  Context: Delhi’s air pollution crisis is worsening, with high levels of particulate matter (PM2.5 and PM10) and other pollutants creating severe health and environmental issues.  Delhi Air Pollution Status: Air Quality Index (AQI): Frequently hovers between 300-500, indicating “very poor” to “severe” air quality. PM2.5 Dominance: Major contributor to unhealthy …

Hydrogen Fuel can be a game changer in ensuring energy security as well as our battle against climate change. Discuss the steps taken by India with respect to adoption of hydrogen fuel technology.

Topic: Science and Technology- developments and their applications and effects in everyday life. 5. Hydrogen Fuel can be a game changer in ensuring energy security as well as our battle against climate change. Discuss the steps taken by India with respect to adoption of hydrogen fuel technology. (250 words) Difficulty level: Easy Reference: Live Mint …

National Hydrogen Mission

GS Paper 3 Topics Covered: Conservation related issues.    National Hydrogen Mission:  Context:  The launch of the National Hydrogen Mission was announced by PM Modi. The aim is to make India a global hub for the production and export of green hydrogen.    Background:  The proposal for the National Hydrogen Mission was made in the Budget …

What is Hydrogen Fuel?

GS Paper 2 Topics Covered: Infrastructure- Energy.   Context: Under ‘Mission Net Zero Carbon Emission Railway’ by 2030, Indian Railways are set to run trains on hydrogen fuel-based technology. For this, it is considering retrofitting of existing trains.   What is Hydrogen fuel? Hydrogen is the lightest and first element on the periodic table. Since the …

RSTV: THE BIG PICTURE- INDIA’S RENEWABLE ENERGY PLAN

    Introduction: Prime Minister Narendra Modi announced that there are huge renewable energy deployment plans for India for the next decade which are likely to generate business prospects of around $20 billion per year. In his address after inaugurating the 3rd Global Renewable Energy Investment Meeting and Expo (RE-Invest 2020), through video conferencing, he …

SCIENCE AND TECHNOLOGY, ENVIRONMENT, BIODIVERSITY

Question 1 “The present global health crisis is not primarily one of disease, but of Governance”. Comment. (300 words) http://www.thehindu.com/sci-tech/health/policy-and-issues/restrictive-global-governance-system-affects-public-health/article5681521.ece Question 2 “The lithium- ion batteries are having high potential but recent findings have defamed its viability”. Highlight the controversy associated with it and suggest measures to overcome the same. (200 words) http://batteryuniversity.com/learn/article/lithium_ion_safety_concerns http://www.pddnet.com/news/2014/02/researchers-build-nonflammable-lithium-ion-battery http://www.thehindu.com/sci-tech/science/promise-of-lithium-batteries/article4555245.ece http://www.thehindu.com/todays-paper/tp-features/tp-sci-tech-and-agri/keeping-lithium-batteries-from-burning/article5683063.ece