Data Centers: The Cloud in Our Cities

By Patricia Vara

Artificial intelligence, cloud storage, and the digitalisation of businesses and public administrations are driving a global race to build data centres. These infrastructures, virtually unknown to much of the population just a few years ago, have become strategic assets comparable to motorways, ports and railway networks in the 21st century.

Spain is in a privileged position to attract these investments. Our geographical location, the quality of our telecommunications infrastructure and, above all, our leadership in renewable energy have attracted the interest of the world’s leading technology operators. The Government itself acknowledges that the country has become one of Europe’s most attractive destinations for this type of project, thanks to its renewable energy capacity and the strong projected growth in demand linked to artificial intelligence.

In this context, the example of the Autonomous Community of Aragón stands out, having emerged as one of the sector’s major players. The region has managed to attract significant projects thanks to the availability of land, a solid infrastructure network and abundant renewable energy production. Zaragoza has established itself as one of the leading technology hubs in southern Europe, accounting for a substantial share of the investments announced for the coming years.

However, the rapid growth of this sector also raises questions. Data centres consume enormous amounts of electricity and, in many cases, significant water resources for their cooling systems. Furthermore, although the initial investment is usually very substantial, the employment generated during the operational phase is relatively limited compared with other traditional industrial activities.

It is precisely this debate that has prompted the Government to introduce new specific regulations for these facilities. The draft legislation currently under consideration aims to ensure that new data centres are sustainable, efficient and compatible with the country’s energy objectives. Among other measures, it proposes requiring larger facilities to demonstrate that 80% of their electricity consumption comes from newly developed renewable generation, in addition to meeting requirements concerning energy efficiency, water management and digital sovereignty. The initiative has prompted mixed reactions. Its supporters believe it will help regulate the sector’s growth and ensure that investments deliver value to the regions concerned. Conversely, some autonomous communities, including Aragón, mentioned above, fear that excessive regulation could slow down strategic projects and undermine Spain’s competitiveness compared with other European countries.

Beyond the regulatory controversy, there is one fundamental question: how can these investments translate into genuine development for the cities and regions that host them? The answer probably lies in linking data centres to the creation of local technology ecosystems. Although these facilities require fewer employees than a conventional factory, they generate demand for highly skilled professionals in fields such as engineering, cybersecurity, maintenance, energy management, telecommunications and artificial intelligence. They can also act as a magnet for technology companies, startups and specialised training centres.

For this reason, public authorities should complement these investments with training and employment policies that enable local residents to access the new jobs being created. The goal should not simply be to build digital infrastructure, but to create communities capable of benefiting from it in the long term. Data centres represent an extraordinary opportunity for Spain. They can drive the digital transition, attract international investment and harness the enormous potential of our renewable energy resources. However, they also require planning, balanced regulation and a clear commitment to local talent.

True success will not be measured solely by the number of servers installed or the megawatts consumed, but by the ability of these investments to generate sustainable wealth and skilled employment in the regions where they are developed. Because the digital economy of the future must be built not only on technology, but also on opportunities for people.