How a waste plant became Copenhagen’s biggest tourism attraction

The Amager Bakke building or Copenhill in Denmark will soon be the city’s first ski slope. It also happens to be one of the most technologically advanced waste-to-energy plants in the world.

Updated: Mar 23, 2018 09:34 IST

Jennifer Parker, Bloomberg
The Amager Bakke building or Copenhill will claim the city’s first ski slope when it opens this fall.
The Amager Bakke building or Copenhill will claim the city’s first ski slope when it opens this fall.(

It’s a howling winter’s day in Denmark here atop one of the tallest buildings in Copenhagen.Bjarke Ingels’s$660 million Amager Bakke building, or “Copenhill,” as locals call it, stands out for many reasons — not least, the fact that it will claim the city’s first ski slope when it opens this fall.

But Copenhill is more than a ski slope. It has a278-foot-high artificial climbing wall, a full-service restaurant,and anaprès-ski barsurrounded by tree-lined hiking trails. And there’s more: The hulking, geometric wedge of silvery aluminum-and-glass paneling does double duty, oddly, asone ofthe most technologically advanced waste-to-energy plants in the world. Just as it’s altered Copenhagen’s skyline, itmay well redefine urbansustainability on a global level.

For Danes, it’s the crowning jewel in their capital’spush to become the world’s first carbon-neutral city by 2025.It’s a “very ambitious goal … but one well underway”, says Lord Mayor Frank Jense.“Our CO2 emissions are down by 33% since 2005.” When active,the new plant will be able toburn a whopping 35 tons of waste per hour — all while cutting emissions by99.5%.

Copenhill may well redefine urbansustainability on a global level. (

It’s just one of Copenhagen’s many greening projects. The city’s largest utility company, Hofor, is currently decarbonising its Amagerværket power station, which supplies 98% of the capital’s heat.A thriving cycling program sees 41% of Copenhageners opting for two-wheeled transportation, up from 36% in 2015. Acity-wide ban on diesel cars might come next.

Inone sense, though, the city is already too green for its own good. Thanks to modern recycling programs, there isn’t enough garbage in all of Denmark to fill its 28 plants, Copenhill included. “We have an overcapacity for incineration, and EU regulations make it difficult to import more waste from other cities,” saysJensen. Which raises the question: Why bother building Copenhillat all?

According to Jorgen Abildgaard, Copenhagen’s executive climate-project director, achieving the necessary gains in efficiency required an oversized structure.(To reach its 2025 target, Copenhagen must remove 9,28,000 tons of carbon dioxide from the atmosphere;Amager Bakke expects the plant to remove 33,000 tons.) Here, thanks to state-of-the-artcatalytic filtration that’s never been used before in Denmark, the incineration is nearlypollution-free. At other plants, the smoke from the same amount of garbage would be toxic. But all that technology takes space, and that spacecame with an equally oversized price tag: $660 million.

Copenhill is located within city limits. (

So the city is turning to tourism—which brings in upwardof $6.5 billion per year—to make the plant economically viable. That’sone reason for its central location, within the city limits. If your fishing line werestrong enough, you could sling it across the harbour from Copenhill and hit the national Opera House.

It’s also just 13 minutes from the airport, making it unmissable, even for first-time visitors. Vienna pulled off a similar feat with itsSpittelau plant, fashioned in 1992 by “eco-architect” Friedensreich Hundertwasserinto acolourfully bizarre, artful landmark. It draws more than 1,00,000 visitors each year to its educational “world of energy” center.

Copenhill aims for more. Standing atop the slope, with its sweeping views of city and sea, the usually sleepy practice of environmental consciousness takes on a subtle thrill,which is perhaps a reflection of starchitect Bjarke Ingels himself — he’s as passionate about sustainability as he is about snowboarding. Here, the air is clean and crisp asamassive labyrinth of shiny silver metal pipes, compressors, fans, and valves do what they do,convertingbillows of white steam into clean energy below.

Most visitors will never see thegutsof the complex. They’ll be welcomed at a pristinely clean, minimalist lobby, where a climbing wall and two outdoor ski lifts will be installed towhisk visitors up to the piste — for around $20 per hour — where they can shred, hike, or run down its 590-foot slopebefore refueling at the indoorbar with a cold Carlsberg beer and “Danish tapas.” (Think pickled herring on fermented bread.)

Christian Ingels, Bjarke’s cousin, will run Copenhillwith a similar ethos. He’s aiming to attract 3,00,000 visitors per year to the site, including roughly 65,000 skiers wooed by the novelty of a mountain in an otherwise-flat country. And while his exact lineup is still in the works, he envisions a wide roster of events, including pop and rock concerts in the parking lot. He compares the project to Legoland — a recreational playground with wide appeal for families— which feels like a night-and-day comparison to Tivoli, the grand, sophisticated amusement park in Copenhagen’s city center.

Regardless, Copenhill will prove a notable test-case for the future of urban greening.“I want my colleagues in other cities to know that waste incineration works;the technology is there,” declaresJensen. “And it’s very good for the economy.”