India’s data centre boom is colliding with its climate reality

Environment & Infrastructure · 3 September 2026 · Based on The Hindu (original report)

2-minute summary

India's data centre capacity is experiencing a massive boom, projected to grow from 1.5 GW in 2026 to 6.5 GW by 2030, driven by AI and global tech investments. However, this expansion is colliding with India's ecological realities. A single 100 MW data centre consumes approximately 2 million litres of water daily, and the sector's annual water consumption is expected to reach 358 billion litres by 2030. Alarmingly, these facilities are clustering in water-stressed regions like Rajasthan and Maharashtra. Furthermore, grid transmission bottlenecks have led to significant renewable energy curtailment (300 GWh in Q1 2026 alone), forcing data centres to rely on coal power. Additionally, a 2026 Cambridge University study reveals that data centres raise local land surface temperatures by an average of 2°C within a 10 km radius. Despite these severe resource strains, state policies focus almost exclusively on fiscal incentives rather than environmental regulation, highlighting the urgent need for a national framework with enforceable sustainability standards.

Why it's in the news

The rapid and unregulated expansion of India's data centres is causing severe resource strain, including massive electricity and water demands, grid transmission bottlenecks, and localized thermal heating, exposing critical gaps in environmental policy.

Background and context

Over the last decade, India's digital revolution—fueled by cheap mobile data, digital public infrastructure (DPI), and cloud computing—has triggered an exponential demand for data storage. To accelerate this growth, the Government of India granted 'Infrastructure Status' to data centres in the Union Budget 2022-23, allowing them access to easier and cheaper credit. Consequently, states like Maharashtra, Telangana, Karnataka, and Rajasthan have aggressively competed to attract investments by offering tax exemptions, cheap land, and 'essential services' status. However, this rapid expansion has occurred without a corresponding environmental regulatory framework. Globally, data centre sustainability is measured using metrics like Power Usage Effectiveness (PUE) and Water Usage Effectiveness (WUE). In India, the absence of mandatory resource disclosures, hydrogeological assessments, and green grid integration threatens to undermine the country's climate commitments under the Paris Agreement and exacerbate its acute water crisis.

Constitutional provisions

• Article 48A (Directive Principles of State Policy) — Mandates that the State shall endeavour to protect and improve the environment and safeguard forests and wildlife.
• Article 51A(g) (Fundamental Duties) — Imposes a duty on every citizen of India to protect and improve the natural environment including forests, lakes, rivers, and wildlife.
• Article 21 (Right to Life) — Judicially interpreted by the Supreme Court to include the right to a clean environment and access to clean drinking water, which is threatened by excessive groundwater extraction by data centres.

Committees and reports

• Ember Energy Analysis of CEA Data (2026) — Highlighted that India curtailed 300 GW-hours of renewable energy in Q1 2026 due to transmission bottlenecks, forcing data centres to rely on fossil fuels.
• University of Cambridge Satellite Study — Analyzed NASA satellite data to show that data centres raise local land surface temperatures by an average of 2°C within a 10 km radius, creating localized micro-climate challenges.

Government schemes

• Draft National Data Centre Policy — Aims to position India as a global data centre hub, though it currently lacks legally binding environmental mandates and resource-use standards.

International organisations

• Central Electricity Authority (CEA) — The statutory body advising the Ministry of Power on grid standards and transmission targets, whose data reveals critical bottlenecks in renewable energy integration.

Mains practice: India's ambition to become a global data centre hub is colliding with its ecological and resource realities. Critically analyze the environmental challenges posed by data centres and suggest policy measures to ensure sustainable digital growth.

Introduction:

India’s data centre capacity is projected to expand fourfold to 6.5 GW by 2030, driven by rapid digitization and AI. While this 'gold rush' attracts billions in investment, it poses severe ecological challenges, threatening India's climate commitments and resource security.

Environmental Challenges of Data Centres:

• Severe Water Stress: A 100 MW data centre consumes ~2 million litres of water daily for cooling. These facilities are clustering in highly water-stressed regions like Rajasthan (which extracts 147% of its annual groundwater recharge) and Maharashtra, competing directly with municipal and agricultural needs.

• Clean Energy Transmission Bottlenecks: Although data centres aim to run on green energy, transmission constraints are a major bottleneck. India curtailed 300 GWh of renewable energy in Q1 2026 alone. Delays in transmission line construction force data centres to rely on coal-based power, increasing carbon emissions.

• Localized Thermal Loading: Data centres generate massive heat. A 2026 Cambridge University study revealed that data centres raise land surface temperatures by an average of 2°C within a 10 km radius, exacerbating urban heat island effects.

• Policy and Regulatory Deficit: Existing state policies offer fiscal incentives and 'essential services' status but fail to mandate public disclosure of water use, hydrogeological assessments, or strict Power Usage Effectiveness (PUE) standards.

Way Forward:

• Mandate a National Green Data Centre Framework with enforceable standards for PUE and Water Usage Effectiveness (WUE).

• Require mandatory Environmental Impact Assessments (EIA) and hydrogeological studies before approving facilities in water-stressed zones.

• Encourage circular water economies by mandating the use of recycled wastewater for cooling.

• Accelerate transmission infrastructure to prevent renewable energy curtailment and enable direct green power procurement.

Conclusion:

To achieve sustainable development, India must transition from an incentive-only approach to a resource-conscious regulatory framework, ensuring that the digital revolution does not come at the cost of ecological survival.

Prelims practice questions

Q1. With reference to the environmental impact of data centres in India, consider the following statements: 1. Data centres in India enjoy 'Infrastructure Status', which facilitates easier access to institutional credit. 2. A standard 100 MW data centre consumes approximately 2 million litres of water daily, equivalent to the daily usage of over 6,000 households. 3. Currently, all major Indian states mandate public disclosure of daily water consumption for data centres. Which of the statements given above is/are correct?

1. 1 and 2 only
2. 2 and 3 only
3. 1 and 3 only
4. 1, 2 and 3

Answer: A. Statements 1 and 2 are correct. Data centres were granted infrastructure status in the Union Budget 2022-23. A 100 MW data centre consumes about 2 million litres of water daily (equivalent to ~6,500 households). Statement 3 is incorrect because, as of now, no state policy in India requires public disclosure of daily water consumption by data centres.

Q2. Consider the following statements regarding India's power transmission and renewable energy integration: 1. Renewable energy curtailment occurs primarily due to transmission constraints and delays in grid connectivity. 2. Over the past five years, India has consistently met more than 95% of its annual power transmission targets. Which of the statements given above is/are correct?

1. 1 only
2. 2 only
3. Both 1 and 2
4. Neither 1 nor 2

Answer: A. Statement 1 is correct; transmission constraints are a major bottleneck causing renewable energy curtailment (e.g., 300 GWh curtailed in Q1 2026). Statement 2 is incorrect because India has met only about 80% of its annual transmission targets over the past five years, with one in four major transmission schemes running a year or more behind schedule.

Q3. Which of the following terms is most closely associated with measuring the energy efficiency of a data centre?

1. Grid Curtailment Ratio (GCR)
2. Power Usage Effectiveness (PUE)
3. Thermal Load Factor (TLF)
4. Carbon Intensity Index (CII)

Answer: B. Power Usage Effectiveness (PUE) is the standard metric used to determine the energy efficiency of a data centre. It is calculated by dividing the total power entering the facility by the power used to run the IT equipment.

Revision flashcards

• What is the projected data centre capacity in India by 2030? It is projected to reach 6.5 GW by 2030, a fourfold expansion from 1.5 GW in 2026.
• How much water does a 100 MW data centre consume daily? Approximately 2 million litres of water daily, equivalent to the daily usage of roughly 6,500 households.
• What is the key finding of the 2026 Cambridge University study on data centres and local temperatures? Data centres raise land surface temperatures by an average of 2°C within a 10 km radius (reaching up to 9.1°C in extreme cases).
• Why is renewable energy curtailment a major issue for green data centres in India? Grid transmission bottlenecks (meeting only 80% of transmission targets) prevent green energy from reaching data centres, forcing reliance on coal-based power.
• Which Indian state has declared data centres as 'essential services'? Telangana has declared data centres as 'essential services' to attract investments.