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Relevance: GS-III (Infrastructure: IT, Energy; Environment) Source: Tech & Ecology Updates, September 2026

1 · Context

India is experiencing a massive “Digital Gold Rush.” Global tech giants are investing billions to build huge Data Centres—the giant server farms that run the internet and Artificial Intelligence. In just four years, India’s data capacity has tripled and is expected to grow four times larger by 2030.

However, there is a hidden, dangerous cost. These massive server farms generate intense heat and require huge amounts of electricity and water to stay cool.

2 · The Hidden Resource Drain

Step 1: The Massive Expansion
Driven by AI, India’s data centre capacity is exploding from 1.5 GW today to a projected 6.5 GW by 2030, demanding immense electricity.
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Step 2: The Water Crisis
To cool down, a single 100 MW data centre drinks 2 million litres of water daily. Yet, they are being built in water-stressed states like Rajasthan.
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Step 3: The Heat Loop
These centers act like giant heaters, raising local city temperatures by an average of 2°C, worsening the Urban Heat Island effect.
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Step 4: The Public Burden
State governments offer freebies to attract these tech giants. Experts warn that the huge cost of upgrading the power grid will eventually be paid by citizens.

3 · Key Ecological & Tech Concepts

Water Footprint
The Hidden Thirst
Data centers use millions of litres of fresh water daily just for cooling. By 2030, Indian data centers will consume a massive 358 billion litres annually.
Urban Heat Islands
Tech Heaters
Servers run incredibly hot and blast hot air outside. Studies show data centers significantly raise the temperature of the land around them.
Regulatory Arbitrage
Race to the Bottom
To attract tech companies, Indian states are relaxing environmental rules and offering free power, blindly ignoring local water shortages.
Transmission Bottlenecks
Grid Limitations
India produces renewable energy, but our grid wires are old. If we can’t transport clean energy fast enough, data centers will rely on dirty coal power.

Prelims Quick Facts: Proposed Solutions
Coastal Siting Experts suggest moving data centers to the coasts, where they can use natural seawater for cooling instead of scarce drinking water.
National Sustainability Framework A proposed central rule demanding states measure local groundwater levels before approving any new tech park.
Battery Storage (BESS) Building large battery stations to store solar power during the day to run data centers cleanly at night.
State Dilutions Some states have actually lowered the rule demanding 100% renewable energy use, dropping it to 51% to please private tech companies.

MCQ Practice Question
Q. With reference to the ecological impact of data centres in India, consider the following statements:

  1. A typical large-scale data centre requires millions of litres of freshwater daily, primarily for thermal cooling operations.
  2. Research indicates that the clustering of data centres can artificially raise ambient land surface temperatures, exacerbating the Urban Heat Island effect.
  3. The Central Government currently strictly mandates that all new data centres in India must operate exclusively on 100% renewable energy.

Which of the statements given above is/are correct?
(a) 1 and 2 only    (b) 2 and 3 only    (c) 1 and 3 only    (d) 1, 2 and 3

Answer: (a) 1 and 2 only

  • Statement 1 — Correct: High-density data servers require massive amounts of freshwater daily just to maintain optimal operating temperatures.
  • Statement 2 — Correct: Data centres generate intense localized heat, contributing significantly to the Urban Heat Island effect.
  • Statement 3 — Incorrect: There is no strict central mandate forcing 100% renewable energy use. States often relax requirements to attract investments.
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