Opportunity knocks
One of my favourite memories from being involved in the community, specifically the Sustainability Team, is having the opportunity to travel in style, in electric cars to visit Fjernvarme Fyn A/S, thanks to Lasse Fredslund and Jeffrey Schoemaker. Fjernvarme Fyn A/S is Denmark's third-largest heating company. They cover about 97% of the heat demand in Odense (80,000 residential units). They are publicly owned by the local municipalities and are not for profit. During our tour we saw different production methods including the process of household waste being incinerated, which was both disgusting and super cool at the same time (make sure you recycle people!).
This was the first time I learned about the concept of district heating. It’s a system where by heat is supplied to consumers through large insulated underground pipes, it’s a lower carbon alternative to other transitional heating methods, because heat from a source is essentially recycled through redistribution. This is where it got interesting for me, Odense has a large data centre owned by Meta (Facebook, instagram, threads and WhatsApp), which Fjernvarme Fyn use to source the majority of their district heating network. In fact, when compared to other methods they use (such as wind, straw and woodchip), this was the most consistent method. Which makes sense, because it’s always ‘on’.
Data centres are notorious for their power and water consumption, in fact, it’s been reported that one data centre uses as much power and water in a year as a small city. With the projected rise of digital services, we can’t ignore that we will become more reliant on data centres. It seems to me that district heating could offset some of the damage that they are doing, particularly in countries such as Ireland where there are currently 75 data centres responsible for circa 20% energy consumption!