DayOne Nurmijärvi: 300MW Renewable AI Campus

Status: Phase 1 Groundbreaking / Early Construction   |   Location: Nurmijärvi, Finland

Project Overview

Finland's natural advantages make it an ideal location for such a high-density data center. The country boasts an abundant and growing supply of renewable energy, particularly wind and hydroelectric power, which makes it well-suited to meet the vast energy demands of hyperscale computing facilities like this one. Additionally, Finland's cool climate significantly reduces the need for energy-intensive artificial cooling solutions, which can often be a major environmental and financial burden for data centers.

Massive 300 MW Hyperscale Capacity

The DayOne project is designed to support AI workloads, which are notoriously power-hungry and require optimal conditions for performance. At a massive 300 MW capacity, the facility will be able to handle some of the largest, most demanding workloads that AI-driven applications require. Whether it's training large neural networks or running sophisticated machine learning models, the infrastructure is designed to meet these demands with both speed and efficiency.

Thermal Management with Natural and Innovative Cooling Solutions

One of the standout features of the project is its focus on cutting-edge thermal management. The data center will utilize Finland's natural ambient cool air to aid in passive cooling, drastically reducing energy consumption related to climate control. This is combined with a direct-to-chip liquid cooling architecture, a highly efficient and effective way to remove heat from the hardware. By maintaining ideal operating temperatures for the servers, this cooling approach helps achieve a Power Usage Effectiveness (PUE) of 1.12, a metric that indicates a highly efficient use of energy in the data center.

The low PUE value means that for every unit of power used by the servers themselves, only a small amount is needed for other operations like cooling and lighting, making Dayone One of the most energy-efficient AI-ready data centers globally.

Circular Heating for Sustainability

In addition to innovative cooling, the DayOne project goes a step further in its commitment to sustainability by implementing circular heating. This approach involves repurposing the waste heat generated by the data center and exporting it directly into the local district heating network. This infrastructure will allow the heat produced by the center’s computing operations to be transferred to nearby homes, potentially warming thousands of residences in the surrounding areas. Not only does this reduce the facility’s overall carbon footprint, but it also provides an eco-friendly solution to the heating needs of the local community.

This is a game-changer in the way data centers interact with their environment. Traditionally, waste heat is seen as a byproduct to be managed, but in this case, it becomes a valuable resource that contributes to the local energy infrastructure. It embodies the principles of the circular economy by turning waste into a useful commodity, aligning perfectly with the growing demand for sustainable technology solutions.

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