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Drone footage of the area where new colocation will be built. Current data center in the background.
Drone footage of the area where new colocation will be built. Current data center in the background.

Press release -

Green Mountain to expand with new colocation data center in Oslo

Green Mountain has acquired a 53,000 square meter plot of land adjacent to its DC3-Oslo data center campus. The plan is to expand the current site with a new 13,5 MW colocation data center. Construction has already started with an estimated completion in November 2022. Green Mountain will continue to develop this campus over the following years until they reach the full capacity of 75 MW.

“This is a natural progression of our development plans at this site.” says CEO of Green Mountain, Tor Kristian Gyland. The current 24,000 square meter site consists of two 4MW buildings, the most recent one was completed earlier this fall. “Whereas our two first buildings have been dedicated to a single tenant, the third module will be a multitenant colocation facility.” Gyland explains.

The new data center will run on 100% renewable energy. Furthermore, Green Mountain plans to connect it to the local district heating grid to heat households in the local area. “At this site, district heating is a good option for heat reuse as the infrastructure is already in place. At our other sites we work on alternative types of heat reuse projects such as land-based lobster and trout farming. Most importantly, our ambition is to always find innovative solutions to become more sustainable.” Gyland says.

The site is ideal both in terms of power, connectivity and proximity to Oslo, the capital of Norway. The international airport is also less than an hour’s drive away. “Ever since we established the site, several large international clients have shown interest in build-to-suit projects. However, we also needed a multitenant colocation facility for clients with a different footprint. Green Mountain continues to grow rapidly, so it is important to have this capacity available. We expect that the full site will be a combination of colocation and build-to-suit solutions for larger clients.” Gyland explains. 

CTS Nordics has been chosen as the Design & Build contractor for this project and we expect to be ready for service in November 2022.

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Green Mountain designs, builds and operates highly secure, innovative, and sustainable colocation data centers in Norway. The data centers operate on low cost 100% renewable power and the use of free cooling creates high power efficiency.

  • The data center near Stavanger (DC1-Stavanger) is built deep inside a mountain in a former high security NATO ammunition storage.
  • The data center in Telemark (DC2-Telemark) is in the ‘cradle of hydro power’ in Norway with close proximity to multiple local hydro power plants.
  • The data center at Enebakk (DC3-Oslo) is situated just outside Oslo, the capital of Norway.

Green Mountain is one of the largest data center operators in the Nordics and experience strong growth. Among clients are large international companies within Cloud, Banking/Finance, HPC, Automotive and more.

Learn more about Green Mountain:


Tor Kristian Gyland

Tor Kristian Gyland

Chief Executive Officer +47 928 05 817

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About Green Mountain

Green Mountain designs, builds and operates highly secure, innovative and sustainable data centers in Norway and the UK. The data centers are powered by low-cost, 100 percent renewable power and are world-leading on energy efficiency.

Green Mountain
Hodneveien 260
4150 Rennesøy