Opinion: The Swedes points the way to use surplus heat

A tax on recycling from district heating plants makes it costly for manufacturers to be environmentally friendly. Politicians should glance at Sweden where a good solution has been found.

Read the original article in Danish here: https://finans.dk/debat/ECE11940043/svenskerne-viser-vejen-for-brug-af-overskudsvarme/?ctxref=ext 


The parties of the Danish parliament recently passed a bill that imposes a tax on recycling of surplus heat and, not least, lets the state regulate the price of it. This means that heat that has already been produced to operate e.g. data centers, will not be recycled to heat people’s homes because it costs producers extra to be environmentally friendly. That’s not very smart.

Det skete trods kritik fra flere sider, herunder tidligere erhvervsminister og nuværende bestyrelsesformand for brancheforeningen Synergi, Bendt Bendtsen, der i Børsen argumenterede for, at det måske ser godt ud for statens provenu, men sort ud i det grønne regnskab. Ifølge Bendtsen bør politikere løfte blikket fra ren skattetænkning og også se på andre aspekter, herunder den grønne omstilling.

This bill was passed despite criticism from several sides, including former business minister and current chairman of the trade association, Synergi, Bendt Bendtsen, who argued in Børsen that it might look good for the state’s revenue, but black in the green accounts. According to Bendtsen, politicians should lift their glaze from pure tax thinking and also look at other aspects, including the green transition.

Bendtsen is right. Politicians should not just concentrate on the debate here at home. They should advantageously direct their gaze at Stockholm. Here, the public, in collaboration with heat producers, has solved the challenge of reusing surplus heat to heat houses. And politicians don’t even have to regulate the price – so does the market itself. In Sweden, Stockholm Exergi has set up Öppen Fjärrvärme – a platform that conveys sales of surplus heat from industry to Swedish house owners. In Interxion’s large data centers located on the outskirts of Stockholm, we have installed heat exchangers that ensure that surplus heat from our servers accesses the district heating network and helps to heat no fewer than 10,000 households.

Interxion also operates data centers in Denmark. But we are forced to let the fire go up the chimney while we are in one of the most populated areas of the country. Even though we use groundwater cooling and leading cooling technology, we still have surplus heat that may as well benefit Copenhagen’s households.

The climate agenda is in great focus today, especially at Christiansborg. But recycling of surplus heat is not just a climate issue. If Denmark has to maintain its position as one of the world’s leading countries on digitalisation, which includes developments in smart cities, it requires us to take the lead. Not only to show that we can handle the green transition without sacrificing modern services, but also to attract more investments that focus on both financial and climate accounting. Members of the Danish parliament should be inspired by our neighbors in Stockholm. That is what both citizens, businesses and the environment is best served with.



From server to radiator: Asetek sends surplus heat directly to consumers

The technology company Asetek now sends the company’s surplus heat directly into the district heating network.


Read the original article from TV2Nord here: https://www.tv2nord.dk/aalborg/fra-server-til-radiator-virksomhed-sender-overskudsvarme-direkte-ud-til-forbrugerne


There is a lot of potential in the surplus heat data centers generate. That is one of the first experiences gained from a mini project, which have started in Aalborg. The DDI member, Asetek, has been able to connect its water-cooled servers from its data center to Aalborg’s district hearting network. This means that the surplus heat is passed directly from servers to consumers.

The project has received a great deal of attention, as it has the potential of being a full year-round heating of all households in Aarhus, Aalborg and Odense.

– It is crucial that we in Denmark include the future data centers in the green transition in an energy efficient way. Utilization of waste heat from the data centers to district heating is very central, and in this connection Asetek’s technology is particularly interesting, says Henrik Lund, professor of energy planning at Aalborg University, who researches the collaboration between district heating networks and data centers.

He sees great perspectives on the project in Aalborg.

– I would call it an international breakthrough that demonstrates how a water-cooled server can be connected directly to a district heating supply. A wider spread of this and similar energy-efficient technologies requires collaboration between the data center and district heating industries. As a university, we would like to take this lead,”says Henrik Lund.

Cowi, together with pipe manufacturer Logstor, has designed the plant, where the heat from Asetek’s server room is connected directly to the city’s district heating network outside the street.

Google and Fredericia Maskinmesterskole inaugurated photovoltaic systems

On February 4, 2020, Fredericia Maskinemesterskole (Mechanical Engineering School) inaugurated a new solar cell plant on the roof of the school. In doing so, Google, Fredericia Maskinmesterskole and Fredericia Municipality formally marked the collaboration between the school and the tech giant.

Read the original article here

It was a celebration day for Fredericia Maskinmesterskole that could now showcase the new solar system that Google has invested in.

Torben Dahl, Principal of Fredericia Maskinmesterskole, welcomed in English as Google representatives were also present, including the Head of Google’s Data Center in Fredericia, Arni Jonsson.

The principal emphasized the purpose of renewable energy and how the facility can help strengthen the educatoin for the students in the area.

“We are very grateful to have received the donation from Google, and I would like to thank them for their cooperation,” Torben Dahl said. At the same time, he also thanked Fredericia Municipality for the interest and support for the exciting project.

Arni Jonsson from Google expressed his gratitude to Fredericia Maskinmesterskole for the opportunity to work with the school on the project:

“It’s been a year since we first met to discuss the opportunities. We see it as a natural step for us in the countries where we set up data centers, so for us it was important to establish this collaboration with the school”. Jonsson further expressed that he hopes that the project is only the first step on a long journey, as Google does not perceive it to be a standalone project, but as part of continuous projects.

After this, mayor of Fredericia Municipality, Jacob Bjerregaard, held a speech where he thanked Fredericia Maskinmesterskole and Google for the collaboration.

“When we welcomed Google to Fredericia a couple of years ago, we talked discussed the fact that one thing was a big data center and the many jobs – but something else was the whole education part. So we have had many good conversations over the years about how we can cross-pollinate Fredericia’s educational environment,” Bjerregaard explained.

He stated that the collaboration between Fredericia Maskinmesterskole and Google had succeeded, and at the same time he emphasized that the municipality is really happy about it. He also thanked the municipality’s committees and employees for succeeding in turning thoughts into realities, as well as the efforts they make to make it happen.

“More educational spots and a collaboration with the business community – we are quite proud of that,” the mayor added, who is in the belief that the efforts that had been put into the course 3-4 years ago is now starting to succeed.

After Jacob Bjerregaard cut the string and officially inaugurated the plant, the attendees were invited to the roof of Fredericia Maskinmesterskole, where a beautiful view over the water and solar plant awaited.