The Data Centre Energy Debt: Telcoâs Green Discovery
For the telecommunications industry, the generative AI revolution presents a fundamental infrastructure challenge, placing an unprecedented and non-negotiable power demand on its data centre partners.
A new analysis of the NTT Global Data Centers 2025 Sustainability Report argues that the power dilemma has elevated sustainability from a corporate sidebar to a central commercial and technical prerequisite for enabling the next generation of digital services.
Driving the report’s narrative is a central conflict: the immense value of data versus its environmental cost. NTT GDC CEO Doug Adams notes that while “data is central to our digital age,” its environmental impact “could increase dramatically with the rapid rise of generative AI.”
With industry projections suggesting AI-driven power consumption could surge 13-fold by 2030, the report positions sustainable infrastructure as the only viable path forward. Doug frames it as a direct “commitment to ensuring the AI revolution is a sustainable one.”
Redefining the ‘premier’ provider
The AI-driven power surge fundamentally redefines what constitutes a ‘premier’ data centre partner. In an era of constrained grids and intense regulatory scrutiny, the best provider is no longer just the one with the lowest latency or fastest connectivity; it is the one that offers the most comprehensive solutions.
The premium partner is the one that can secure power, guarantee operational stability for high-density AI workloads and manage the associated carbon liability.
NTT GDC’s vision, as articulated by Doug, is one of “being the world’s premier data centre provider in a digitally connected world that is both harmonious and sustainable.”
The statement effectively recasts sustainability as the new benchmark for network reliability and commercial readiness.
The report supports the vision with aggressive, science-based targets, including achieving Net-Zero emissions across its value chain by 2040, a decade ahead of the Paris Agreement.
A framework for decarbonisation
NTT GDC’s strategy rests on a three-pillar operational framework: “Consume less. Do better. Do different.” For telco and infrastructure stakeholders, the framework translates into a comprehensive plan for managing costs, de-risking energy volatility and investing in future-state technologies.
- Consume Less: This pillar emphasises operational excellence as a means of capacity creation. The report highlights 21 GWh saved in FY24 through efficiency measures alone. In a power-constrained market, this âfoundâ 21 GWh represents virtual capacity that can be sold to new high-density clients without needing new utility grid connections.
- Do Better: This represents a strategic switch to cleaner alternatives, primarily through a massive renewable energy procurement plan. The strategy moves beyond simply buying unbundled certificates. As Neal Kalita, Global Energy Management at NTT Global Data Centers, states: âOur ambitious PPA strategy is not just about powering our data centres; itâs about powering change in the energy landscape. By securing large-scale agreements, weâre driving the creation of new renewable energy sources.â By investing in âadditionalityâânew power plantsâNTT GDC works to create long-term price certainty and enhance the resilience of the local grids where it operates.
- Do Different: This innovation pillar is NTTâs answer to the high-density AI challenge. It includes developing net-zero data centre designs, deploying direct liquid cooling technologies and pioneering external waste heat recovery.
From theory to tangible application
The report moves from strategic frameworks to physical proof points. The most critical use case for the telco sector is the deployment of advanced liquid cooling in Navi Mumbai, India, to support AI workloads.
The facility successfully manages heat loads “higher than 20kW per rack,” a feat impossible for most traditional air-cooled data centres. More importantly, the adoption of a superior cooling technology “improved the facility’s overall energy efficiency by ‘almost 30%’.”
It reveals a counterintuitive yet vital trend: the power-hungry AI workloads, through the forced adoption of liquid cooling, are a catalyst for greater overall facility efficiency, creating a virtuous cycle where compute density and energy efficiency are no longer in opposition.
Similarly, a project in Berlin transforms the data centre into a community utility. By capturing and repurposing waste heat for a local district, NTT GDC demonstrates a model that turns an energy consumer into a green energy supplier.
The strategy builds a powerful moat against the regulatory and community backlash threatening data centre expansion globally.
The next bottlenecks
The report transparently identifies the following significant industry risks. The KPI dashboard reveals a 29% increase in water consumption, explicitly “due to increased IT load in evaporative sites.”
It highlights the “Water-Power-Nexus” in the quest for power efficiency (PUE); many sites consume vast quantities of water, posing a critical risk in water-scarce regions.
The second challenge is the Scope 3 client load. The data reveals that the clients’ IT load remains the “dirty” part of the equation, holding back NTT’s total renewable energy percentage.
For telecommunications providers, NTT’s report serves as a strategic blueprint. It argues that the AI revolution can only be built on an infrastructure that has fundamentally solved the problems of sustainable power, cooling, and community integration.
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Doug Adams
CEO & President, NTT Global Data Centers
