Equinix, a global colocation company, has opened its MD5 data center in Alcobendas, Spain, as part of a €460 million (US$ 535 million) expansion of its Madrid campus, aimed at increasing interconnection capacity in Southern Europe and strengthening Spain’s position as a digital infrastructure hub. The facility was inaugurated recently in the presence of regional government officials including Isabel Díaz Ayuso, President of the Community of Madrid.
According to a company press release, the investment is part of a broader economic impact plan. Equinix operates eight data centers across Madrid and Barcelona, all powered by renewable energy, and serves more than 300 customers in Spain.
The MD5 site is integrated into Equinix’s Madrid ecosystem, which already hosts more than 225 companies connected through more than 70 network providers. Equinix claims the facility is designed to provide low-latency, secure connectivity for enterprises and cloud providers, enabling hybrid and multicloud deployments.
At the inauguration, a panel discussion titled “The Physical Foundation of AI: The Future Is Built Here” four keynote speakers expressed their optimism and support for the new Equinix facility.
Valentín Pinuaga, Managing Director of Equinix Spain, said, “The opening of MD5 in Alcobendas represents the consolidation of a commitment that Equinix has been building in this country for more than two decades. What is required for that AI to actually work at scale and securely. And this is where infrastructure comes into play. Data centers are the foundation on which the economy is built.”
Fernando Silva, President and CEO of Siemens Spain, said, “The inauguration of these data centers reflects the potential of Madrid and Spain to attract these infrastructures key to the development of the digital economy. At Siemens Spain, we help make these opportunities real with technologies that integrate electrical infrastructure, liquid cooling, building management systems, and industrial automation needed to support high-density AI platforms.”
Begoña Villacís, Executive Director of SpainDC, said, “This is no longer a technological conversation; it is an industrial, economic, and strategic one. The ability of Europe, Spain, and Madrid to store, process, and manage their data will be decisive for our future autonomy and competitiveness. And that inevitably requires a new reindustrialization linked to digital infrastructure.”
Ricardo Abad, CEO of Quark, said, “We are in a moment where there is enormous demand for energy, computing, latency and this demand will continue to grow; it is unstoppable. Therefore, it becomes imperative to integrate resilience as a core design element at all levels to ensure the system is stable and does not fail.”
According to Equinix, the MD5 facility adds more than 4,400 square meters of colocation space and is designed for high-density computing environments. It includes N+1 redundancy for power and cooling systems, a 5+1 backup generator configuration, biometric access controls, and continuous surveillance, with Equinix targeting 99.999 percent availability. The site runs on 100 percent renewable energy and is designed to achieve LEED certification as well as ISO 14001 and ISO 50001 standards by 2027.