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Busy work at the construction site of the DC3-Oslo expansion.
Busy work at the construction site of the DC3-Oslo expansion.

Press release -

Successful expansion at Green Mountain’s data center site in Oslo region

Only 9 months after the opening of the DC3-Oslo data center, the site expands with an additional 4MW building. This second building is a built-to-suit project for a large international cloud provider and was delivered ahead of schedule despite the challenges posed by Covid-19.

The data center expansion consists of a new 4 MW data center building, doubling the current capacity at the site. It also includes new back-up generator sets and associated infrastructure. The total timeline was estimated at 9 months and numerous sub-contractors and vendors were involved in the project.

“The project progressed nicely although the Covid-19 situation posed challenges with for instance equipment deliveries. However, we managed to find alternative solutions and actually completed the project a few days ahead of schedule.” says project manager, Håvard Lurås.

CEO of Green Mountain, Tor Kristian Gyland, explains that the massive interest in this site will result in several new expansions in the near future. “Norway’s abundance of low-cost renewable power, the government’s beneficial framework conditions, and Green Mountain’s ability to deliver sustainable and high-quality data centers at a rapid speed to market make a strong value proposition. We have secured power and land to grow this site for several years to come.”

The DC3-Oslo site is perfectly situated in terms of power supply, infrastructure, and connectivity, only 20 km from downtown Oslo. It is Green Mountain’s third data center site in addition to its mountain hall facility outside Stavanger and the facility at Rjukan, Telemark. “We expect to grow at all our three existing locations, but we also need to expand in other regions. We have already secured land at two different locations on the Norwegian west coast, at Kalberg  and Haugaland Business Park.

Data centers are the backbones of the modern digital society and consequently the demand will surge. "A recent Altman Solon report shows that the Nordics will take up a disproportionate share of the expected growth in Europe, so I am very optimistic about the future.” says Gyland.



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 we experience strong growth. Among our clients are large international companies within Cloud, Banking/Finance, HPC, Automotive and more.

Learn more about Green Mountain:


Mette Berger Gulbrandsen

Mette Berger Gulbrandsen

Press contact Marketing Manager 92838645
Svein Atle Hagaseth

Svein Atle Hagaseth

Press contact Chief Executive Officer + 1 416 518 7105

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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