CURRENT AFFAIRS: FROM MEGABYTES TO MEGAWATTS

Data centers are often described as the backbone of the digital economy, they store, process, and move the data that powers cloud services, financial systems, artificial intelligence, video streaming, and almost every digital interaction we rely on today. Yet this description, while technically accurate, belies their true nature, at scale, data centers are not merely technology facilities, they are energy hungry, continuously operating industrial infrastructure that increasingly resembles mega factories in their demand for power and resources.[1]

What distinguishes data center from other infrastructure is not only compute or storage capacity but the need for continuity and near 100% uptime requirements. Electricity runs the servers; servers generate heat; cooling systems remove that heat; and the cycle repeats without interruption, twenty-four hours a day and every day of the year.

Reliability, therefore, is not aspirational but a base case and redundancy is mandatory. That said if critical data centers go offline the results are often disastrous and costly. Imagine if you would, a data center supporting an online payment platform going offline even briefly, this would have the potential of disrupting essential financial services of the client, digital transactions would begin to fail, merchants would be unable to make or accept payments and settlement systems would be disrupted. Unlike ordinary buildings or factories, where downtime causes local inconvenience, a data center outage can create cascading failures and have non-local impact on networks, platforms and services.

It is this permanent, non-negotiable requirement for, and reliance on, uninterrupted electricity that quietly transform data centers from purely digital infrastructure to, at its core, an energy dependent behemoth. To visualize this, imagine a city that never sleeps. Its lights never go off, its air-conditioning never stops, and its machines never pause. That is how a data center functions, except its “population” is made of servers, GPUs storage, and instead of people, a single mid-size data center consumes approximately the same amount of electricity as about 45,000 homes.[2]

This is also why the data center industry worldwide is described primarily in terms of megawatts (MW), and not merely in terms of floor area or number of servers or even Mega, Tera or Petabytes. MWs capture what truly matters i.e. the scale of electricity demand, the size of cooling systems required, the level of redundancy and the pressure placed on the grid. “Megawatts” make digital growth legible to energy planners and turns 'compute' from a processing spec into an energy reality.

When Scale Changed the Narrative

For years, data centers were discussed largely in terms of internet growth and cloud adoption. That narrative changed when their electricity consumption began to appear clearly in national and global energy statistics. The International Energy Agency (IEA) estimates that data centers consumed about 415 terawatt-hours (TWh) of electricity globally in 2024, accounting for roughly 1.5% of total global electricity demand, with consumption growing at close to 12% annually in recent years.[3] At this scale, data centers are no longer marginal electricity users, they begin to occupy a strategic and permanent place in energy planning and security. To understand the magnitude of the scale, 415 TWh is significantly more electricity than the total annual consumption of countries like the United Kingdom or Australia.

At this scale, data centers become structural actors in the power system, shaping where power plants are built, how transmission networks expand, and how grid reliability is managed, forcing utilities and policymakers to treat digital infrastructure as a permanent and growing source of electricity demand.

The United States provides a concrete illustration of how this global trend unfolds at the national level. Electricity consumption by U.S. data centers rose from about 58 TWh in 2014 to roughly 176 TWh in 2023. Federal projections indicate this could increase to between 325 and 580 TWh by 2028, potentially accounting for 6.7% to 12% of total U.S. electricity consumption.[4] At such levels, data centers become comparable to entire industrial sectors but unlike household demands or even traditional industrial demand the load profile of Data Centers is flatter, nearly always operating at peak load. This is reshaping energy generation and transmission. Utilities need to plan substations, transmission lines and generation capacity specifically to support Data Centers and their eccentricities. The shift is already visible in the United States, where grid operators such as PJM have begun revising connection rules and reliability frameworks to manage the surge in power demand driven by data centers, particularly those supporting artificial intelligence workloads.[5]

The stratospheric rise of cloud computing, the swing towards SaaS and the on-demand intellect of AI are now rather inextricably intertwined with the decidedly more bureaucratic, and some may venture to say less glamorous, world of energy infrastructure planning and development.

India’s Digital Growth and the Turn Toward Infrastructure

India is now encountering an equally significant version of the scale effect seen globally, one that is shaped as much by regulation and public policy as by market demand. The expansion of Digital India, cloud services, digital payments, fintech platforms and artificial intelligence are creating a substantial demand for data infrastructure that must be reliable, secure, and physically located within the country. Regulation is also playing a direct and decisive role in this transformation, for instance, the Reserve Bank of India’s mandates that all payment system data should be stored entirely within India,[6] making domestic data storage compulsory for banks, payment gateways, and fintech platforms. Similar regulations in the insurance sector mandate onshoring data[7] and debates around AI-model storage and data localization indicate that regulation may significantly shape the storage strategies of global technology companies.

With digital services and large-scale digitization programs becoming more embedded within the economy and with the world becoming increasingly insular, if not hostile, data centers shift from being supportive assets to a core pillar of the country’s strategic, economic and infrastructure base. States recognize this reality and competition based on infrastructure readiness is heating up as states vie for data centers and the investments that come with it. Data Center Policies in Maharashtra, [8] Telangana,[9] and other states place strong emphasis on electricity tariffs, duty exemptions, and power supply reliability. The prominence of electricity-related incentives is not incidental. It reflects a practical reality for data centers; energy availability is not simply an operating cost but a precondition for existence.

India’s capacity figures already reflect. The country has crossed the 1 GW operational threshold, placing it firmly within the category of large-scale data center markets. JLL projects that India’s capacity will reach about 1.8 GW by 2027,[10] while Colliers estimates growth to approximately 4,500 MW by 2030,[11] indicating a multi-fold expansion within a single decade. CBRE reports India’s operational capacity at roughly 1,530 MW as of 2025.[12]

These MW figures translate into city-scale electricity demand. When several such facilities cluster in one region, they reshape the local power map. The physical consequences of this transition are already visible. India’s primary data center hubs of Mumbai, Chennai, Hyderabad, and Bengaluru are experiencing growing stress on electricity supply, and the lack of water for cooling threatens to dampen further growth.[13]

The Cloud, the Sun and the Wind

As with any industry with high energy demand, the question then becomes where does the energy come from? The Unicorns, their altruistic founders and gilet clad investors can hardly be associated with “dinosaur juice” and plumes of smoke. They also require predictability in pricing over the long term and protection from geo – political and supply chain shocks. Nuclear energy has significant cost, liability and waste disposal issues. Additionally, the time required for setting up nuclear plants while on the decrease is still significant, creating massive mismatch with the current energy demand. In this context the switch to renewables looks obvious if not strategic, but this is not without its own set challenges.

Data centers are all about sustained and high base load demands. Solar and Wind are notoriously fickle with the latter being infamously so. Both suffer from comparatively low load factors, steep load curves, large intra-day and seasonal fluctuations. While hybrid does help flatten the curve and increase load factors it isn’t dispatchable enough to prevent the pandemonium that would follow an outage. Wheeling and banking energy is one solution, especially in open access procurement by Data Centers, but it does nothing to balance the grid, if anything most states limit if not actively discourage it. This then is the stuff of nightmares for grid operators and thus the push to merge storage with renewable solutions and have “firm and dispatchable renewable energy”.

While both batteries and other storage solutions like pumped hydro have their own set of challenges, they present a real solution for Data Centers and one that does not give grid operates sleepless nights. This is why renewables now form the backbone of data center power procurement. The benefits are mutual: Data Centers are ideal bankable anchor customers for renewable energy projects through long-term Power Purchase Agreements (PPAs) these contracts allow data center to lock in predictable electricity prices for 15–25 years; while enabling renewable energy developers to finance new renewable generation capacity.

Google ranks among the world’s largest corporate buyers of clean energy, with more than 22 GW contracted through over 170 agreements worldwide,[14] including around 8 GW of new clean energy signed in 2024 to power its expanding data centers. Microsoft has committed to matching 100% of its electricity consumption with zero-carbon energy by 2030 and holds more than 20 GW of renewable energy under contract, bolstered by a 10.5 GW development framework with Brookfield for future data center and AI workloads.[15] Amazon leads as the top corporate purchaser of renewable energy, with over 600 projects globally and nearly 35 GW of contracted capacity,[16] having already matched 100% of its operational electricity including data centers with renewables.[17]

Data Centers, in turn must do their part and look at location diversification, other than those dealing with global traffic or latency sensitive task, most can move away from cable landing stations or urban center and follow renewable energy generation and the robust well-fed substations. This of course also has the advantage of utilizing dark fiber or bringing fiber to area not otherwise covered, which in turn only extends digital infrastructure penetration and serendipitously the demand for more data centers.

Data centers no longer sit at the edge of the energy system they are becoming one of its defining forces as Data Centers become more power hungry, renewable energy presents deep synergies to satiate this demand. When fast paced digital revolution converges with steady national infrastructure planning there will be opportunities and obstacles, but as with anything who dares wins.

[1] IEA https://www.iea.org/energy-system/buildings/data-centres-and-data-transmission-networks

[2] https://www.pib.gov.in/PressReleasePage.aspx?PRID=2215187&reg=3&lang=1#:~:text=1.,large%20hydro%2C%20has%20been%20added. See per capita electricity consumption FY 25-26 supra and assuming 4 persons per household (https://www.mospi.gov.in/) and an mid-size data centre being 30 MW.

[3] IEA https://www.iea.org/reports/energy-and-ai/executive-summary

[4] U.S. Department of Energy / Lawrence Berkeley National Laboratory, 2024 https://www.energy.gov/articles/doe-releases-new-report-evaluating-increase-electricity-demand-data-centers

[5] (Reuters, January 2026) https://www.reuters.com/legal/litigation/pjm-unveils-plan-tackle-ai-driven-power-demand-surge-2026-01-16/

[6] RBI, FAQs on Storage of Payment System Data: https://www.rbi.org.in/Scripts/FAQView.aspx?Id=85

[8] Maharashtra IT Policy 2023: https://mahadma.maharashtra.gov.in/wp-content/uploads/2025/08/IT_Policy_2023.pdf

[9] Telangana Policy: https://www.telangana.gov.in/wp-content/uploads/2023/05/Telangana-Data-Centres-Policy.pdf

[10] https://www.jll.com/en-in/newsroom/indias-data-centre-capacity-to-reach-18-gw-by-2027

[11] https://www.colliers.com/en-in/news/press-release-the-digital-backbone-data-center-growth

[12] https://www.cbre.co.in/insights/reports/india-s-data-centre-market-in-a-new-era

[13] Reuters https://www.reuters.com/world/india/india-file-100-billion-data-centre-boom-tests-resource-limits-2025-12-03/

[14] Google https://www.esgtoday.com/google-buys-1-2-gw-of-carbon-free-energy-to-power-data-centers-across-u-s/

[15] Brookfield Press Release 2024 https://bep.brookfield.com/press-releases/bep/brookfield-and-microsoft-collaborating-deliver-over-105-gw-new-renewable-power

[16] Amazon - https://renewableaffairs.com/news/renewable-amazon-claims-the-throne-yet-again/

[17] Amazon- https://www.aboutamazon.com/news/sustainability/amazon-renewable-energy-goal