Data Center Campus
Green Mountain's Enebakk campus (branded OSL1-Enebakk, formerly DC3-Oslo) sits on a 75,000 m² (about 807,000 sq ft) site on Granittveien in Ytre Enebakk, roughly 20 km southeast of Oslo. The campus holds five buildings: DC1 opened in October 2020, DC2 in August 2021, DC3 in December 2022, DC4 in 2024 and DC5 in 2025. DC4 and DC5 extend space dedicated to an international cloud provider.
Buildings
| Site | Operator | Status | Operational | Building Size | Built |
|---|---|---|---|---|---|
| Green Mountain: OSL1 DC1 | Green Mountain AS |
Operational
|
░░░ Request Dataset MW | 40,000 SqFt | 2020 |
| Green Mountain: OSL1 DC2 | Green Mountain AS |
Operational
|
░░░ Request Dataset MW | 40,000 SqFt | 2021 |
| Green Mountain: OSL1 DC3 | Green Mountain AS |
Operational
|
░░░░ Request Dataset MW | 107,700 SqFt | 2022 |
| Green Mountain: OSL1 DC4 | Green Mountain AS |
Operational
|
░░░░ Request Dataset MW | 62,430 SqFt | 2024 |
| Green Mountain: OSL1 DC5 | Green Mountain AS |
Operational
|
░░░░ Request Dataset MW | 103,335 SqFt | 2025 |
Green Mountain AS design build and operate high security, robust wholesale colocation data centres.
The companyhas two data centres in Norway with plans to develop in other regions. The data centres operate on 100% low cost renewable power and use of free cooling creating unique power efficiency. Both data centres, DC1-Stavanger and DC2-Telemark have achieved Uptime Institute Tier III certification as the only Nordic colocation provider. In addition both data centres have the ISO 9001 and ISO 14001 certifications in place.
The data centre near Stavanger (DC1-Stavanger) is built deep inside a mountain in a former high security NATO ammunition store.
The data centre in Telemark (DC2-Telemark) is in the ‘cradle of hydro power’ in Norway with multiple local hydro power plants.
Smedvig is the majority owner of Green Mountain.
December 30, 2022 Green Mountain: OSL1 DC1
Green Mountain has finalized the expansion of its data center campus in Oslo, Norway. As a component of its OSL1-Enebakk complex, the Nordic data center provider has constructed a new 13.5MW data center, initially slated to debut in November 2022, as was announced at the end of 2021. Earlier in...
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December 09, 2021 Green Mountain: OSL1 DC1
Green Mountain has announced that it is expanding its Oslo, Norway campus by building a new data center at the facility. Green Mountain revealed that it bought a 570,500 square foot (53,000 square meters) plot of land next to its DC3-Oslo data center campus. According to Green Mountain, the Oslo...
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August 05, 2021 Green Mountain: OSL1 DC1
Green Mountain has announced that it has expanded its DC3-Oslo facility in Norway. Green Mountain just acquired the 4MW facility, and it has doubled its capacity by adding another 4MW capacity to the site. Aside from that, it also added a new backup generator set to the facility. The CEO of Green...
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