Executive Summary

• The industry is on the brink of legislation changes around sustainability and energy, and the year is set to be a complicated navigation of sustainability to reach targets for data centre sustainability.
• We’ve identified four trends that will shape our race to become more energy efficient, from renewable energy progression, the launch of next-gen cooling technologies, the duality of AI as a demand driver and an opportunity to optimise efficiency and embracing pragmatism over marketing slogans as we see a clearer focus on what’s actually achievable.

As we enter the second month of 2026, the industry is on the edge of its seat as we’re on the brink of new regulation changes for data centre sustainability from the EU. As the industry faces the unprecedented demand for AI, cloud and edge computing, navigating sustainability is becoming more complex this year with political shifts, regulation changes and new market dynamics creating a situation where progress may become harder to achieve and projects may face delays.

The data centre industry faces great opportunities as it expands rapidly, but with that comes challenges: from power constraints, supply chain issues, to regulatory hurdles and talent shortages, the industry’s resilience is being tested.

In this article, I will spotlight the sustainability trends that will define the path the industry takes this year.

Renewable energy investments progress, but may face slow growth periods and regional variability

The investment and progress in wind and solar renewable energy will keep surging buy will face periods of slow growth due to policy changes, new restrictions and innovations. Regional variability in renewable resources will also play a part, since the climate varies in different countries around the world. E.g. Spain’s solar soars, the UK leans on wind and Norway’s hydro dominates.

However, it won’t plateau completely; the International Energy Agency projects global renewable power capacity will become the largest global energy source, used for almost 45% of electricity generation by 2030.

Advanced cooling technologies

Innovative, next-generation cooling technologies will be launched this year as cold plates, immersion cooling and microfluidics advance quickly. Water efficiency is as hot a topic as energy efficiency, with how much data centres consume potable water each year, which could have consequences as dire as a water shortage should they not become more efficient.

New, advanced creations promise greater efficiency and reduced water usage, which addresses two large issues in the industry: operational costs and sustainability concerns.

AI systems and efficiency optimisation

There are two sides to the coin with AI; it’s the major reason behind this growth, and it’s also being deployed so it can be used to optimise energy management in real time. AI can be used in several different ways for this; from fine-tuning cooling, reducing waste, to improving water storage and distribution.
AI’s dual role as a demand driver and sustainability enabler makes it crucial for 2026 sustainability.

Pragmaticism over slogans

Gone will be the catchy slogans around sustainability for marketing and visibility; as climate goals tighten, operators are balancing sustainability with economic and grid realities.

This year will see a reduction in broad pledges and more quantifiable targets, such as 24/7 carbon-free electricity and specific PUE/WUE goals, with a clear focus on what is actually achievable. This is an era where the real challenge of scaling data centres meets the need to keep environmentally responsible as well.

Whilst they’re not the only sustainability trends shifting the market this year, these four will create huge shifts in the industry’s evolution as it becomes more efficient in line with the sustainability targets set for 2030 and 2050.