Snøhetta has completed the carbon-negative Powerhouse Telemark office in the city of Porsgrunn, Norway, which was designed to produce more energy than it will consume over its lifespan.

The angular building is highly insulated and has a large photovoltaic canopy covering its roof and south-facing facade that will generate 256,000 kilowatts of energy each year.

According to Snøhetta, this will mean it creates enough surplus renewable energy to compensate for the carbon consumed by the office over a 60-year lifespan – including its construction, demolition and the embodied-carbon of building materials.

Snøhetta已完成位於挪威Porsgrunn市的負碳Powerhouse Telemark辦公室,該辦公室旨在產生比其使用壽命內更多的能源。



FROM:Snøhetta designs carbon-negative Powerhouse Telemark office in Norway

Powerhouse Telemark was designed by Snøhetta with R8 Property, Skanska and Asplan Viak, and is its fourth Powerhouse building, following Powerhouse Brattørkaia.

The Powerhouse buildings were developed in response to the climate crisis and the building industry’s contribution to global carbon emissions, with the goal of offering a “sustainable model for the future of workspaces”.

Powerhouse Telemark由Snøhetta與R8 Property,Skanska和Asplan Viak設計,是繼PowerhouseBrattørkaia之後的第四座Powerhouse建築。


“Architecture, as we see it, probably has the purpose of creating better environments for human and non-human existence on Earth,” said Snøhetta founding partner Kjetil Trædal Thorsen.

“There is no question that we, as a profession, have to deal with the problems, not challenges, real problems that we have at hand, at any time through our professional network and cross-collaboration,” he told Dezeen.



“Powerhouse is a constellation of different companies that work with different clients in order to create a building that principally produces extensively more clean energy than it consumes,” Thorsen continued.

“What we’ve proven with this building is that there is no excuse for the building industry, not to build energy-positive buildings anymore. All the systems that are in this building are existing in the market.”



Powerhouse Telemark is distinguished by its 11-storey, skewed form that features a steep roof angled at 24-degrees and a distinctive 45-degree-notch on its east-facing facade.

This provides the building with a “clearly identifiable expression”, helps to maximise the amount of solar energy the photovoltaic canopy can harvest and creates light-filled spaces inside.

Powerhouse Telemark的特點是其11層傾斜的形式,其傾斜的屋頂呈24度角,其朝東的立面上具有獨特的45度凹口。


The building’s facades are highly insulated and clad in a mix of wooden panels that provide solar shading and Cembrit facade panels – a large fibre cement sheet.

Cembrit was chosen as it provides the building with a “density akin to that of a stone structure” – meaning it can store thermal heat during the day and slowly emit heat during the evening. This helps to passively heat and cool the building, in tandem with a system that uses geothermal wells dug 350 metres below ground.


選擇Cembrit是因為它為建築物提供了“類似於石頭結構的密度”,這意味著它可以在白天存儲熱量,而在晚上則緩慢釋放熱量。 與使用地下350米開挖的地熱井的系統配合使用,這有助於被動地對建築物進行加熱和冷卻。

Inside the office comprises a mix of different office spaces, alongside a “barception”, a shared staff restaurant, penthouse meeting spaces and a roof terrace.

A basement was not included to reduce the amount of concrete required for the project.



Among the office spaces are two storeys of flexible, co-working spaces that allow users to easily expand or downsize their workforce, and switch between working privately or collaboratively.

They are positioned in the angular, west and south-facing areas of the building that are brighter and have larger, open-plan arrangements.

Smaller and more traditional, enclosed workspaces are contained behind the building’s straighter facades, away from sun-exposed areas. Together, this layout reduces overheating and dependence on artificial cooling.



較小,更傳統的封閉式工作空間位於建築物筆直的外牆後面,遠離陽光直射的區域。 總之,這種佈局減少了過熱和對人工冷卻的依賴。

Powerhouse Telemark’s interior material palette is also designed to be as sustainable as possible, composed of a minimal palette of local wood, gypsum and carpet tiles made from 70 per cent recycled fishing nets.

These elements were designed to complement the building’s exposed “environmental concrete” structure – a type of concrete that uses less energy in its production and produces less carbon dioxide than traditional concrete.

Powerhouse Telemark的內部材料調色板還設計為盡可能具有可持續性,它由70%的可回收漁網製成的最小局部木材,石膏和地毯組成。


Snøhetta’s other Powerhouse buildings completed over the last decade are Powerhouse Kjørbo and Powerhouse Montessori.

The completion of Powerhouse Telemark follows Thorsen’s warning to architects that they must plan for “armageddon situations” and the studio’s pledge to only design carbon-negative buildings, meaning their projects will generate more energy than they consume over their lifetime.

“For the next 10 years Snøhetta will focus on turning our project portfolio carbon neutral in terms of all projects in the design stage,” the firm told Dezeen. “Within the next 20 years [we will] ensure that our built projects are carbon neutral.”

Photography is by Ivar Kvaal.

Snøhetta在過去十年中完成的其他Powerhouse建築包括PowerhouseKjørbo和Powerhouse Montessori。

Powerhouse Telemark的竣工是在Thorsen向建築師發出警告,即他們必須為“世界末日情況”進行規劃以及工作室承諾只設計碳負性建築的前提下完成的,這意味著他們的項目將產生比他們一生中消耗的能量更多的能量。

該公司對Dezeen表示:“在接下來的10年中,Snøhetta將專注於在設計階段就所有項目實現我們的項目組合碳中和。” “在未來的20年內,我們將確保我們建成的項目是碳中和的。”

攝影是Ivar Kvaal。



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