Tag Archives: data center

Data centers as heaters

(…) in large data centers, enormous cooling mechanisms are required to maintain the optimal temperature and ensure the stability of the computer’s operation.

Because data centers needs cooling, as Nicole Starosielski mentions in the text, colder Nordic countries are good places to build data centers. Google just announced recently that it will invest a lot more to its data center in Hamina. This is good news for Finland who desires new data centers. Finland is not only looking for jobs that major investments create, but also wants the heat data centers inherently produce.

Finland has decided to stop burning coal by the year 2030. That’s why cities are in a hurry to renovate their heat and power generation.

Espoo is a good example. It has a large combined heat and power plant in Suomenoja that still burns coal. Last week Espoo announced that it will close its coal burning units entirely in five years. Here is the road map they have planned to become coal neutral Espoo.

Espoo district heating transformation plan

You can see that coal units are planned to close in 2020 and 2025 and data centers to open in 2022 and 2024. Using data centers as heat sources in cities’ district heating is not a new thing, but the plan is to build and connect more in the future. This works in a way that the hot air from data centers is channeled into underground pipes of district heating to warm water that then warms the city.

In September, City Board of Espoo decided to reserve a lot in Northern Espoo for energy company Fortum that wants to build a big data center there. All the excess heat from that data center would go into Espoo’s district heating. Many homes that now is heated by coal would then be warmed by data usage. It’s interesting how media infrastructure (data center) would be strictly connected to our basic infrastructure (heating homes). Data in this scenario is almost like a piece of firewood that keeps our flats warm.

I find this plan also interesting, because data centers use a lot of energy, but are still seen as green choice. I suppose the idea behind this is that getting green heat is harder than green power, so data centers could run entirely with renowable and nuclear power and then produce clean excess heat.