What Happens When Facebook Heats Your Home
What Happens When Facebook Heats Your Home
www.wired.co.uk
What Happens When Facebook Heats Your Home
Since 2020, Meta’s hyperscale data center — spanning 50,000 square meters on an industrial estate on the edge of the city — has been pushing warm air generated by its servers into the district heating network under Odense. That heat is then dispersed through 100,000 households hooked up to the system, with Meta providing enough heat to cover roughly 11,000.
Wish this kind of joined up thinking happened in places other than the Nordics.
Data centres and industry exist and dump heat all over the world. Putting it to use is a no brainer.
I think the Nordics is probably the only place capable of utilizing this system in the first place. It looks like they have a utility system that already centralizes heating for their communities. They basically have a hot water line that circulates through radiators located in all the buildings in the community. Facebook was able to hook their heat exchange to this system, so they didn't have to build any real infrastructure.
I'm not really sure how efficient this solution is, it really depends if their centralized system is a closed or open system. The water Facebook is pumping out is only 80 degrees, and has to be heated up to 170 by the utility company for service.
The problem is that while these servers produce a large volume of heated air, the intensity of that heat is very low, making it hard to exploit or preserve for transfer.
Germany has this concept implemented in a lot of places, too.
Ironically this results in some problems now. For example the city Salzgitter (100k inhabitants) is heated by the local steel plant – which currently transitions towards green steel. Their transition also leads to a shut down of their blast furnaces, leaving the inhabitants of Salzgitter out of heating.
No idea what their plan is to replace it, though.
District heating in Denmark is a closed system. The heated water leaves the Combined Heat & Power plant (CHP) or an industry's heat pump and runs towards the consumers. In radiators it flows through and you pay for the difference in heat in/out and for tap water/shower etc. you have a heat exchanger that heats up the normal cold water line. The now colder heated water then runs back to the CHPs where it gets reheated.
Denmark may be big on windmills but CHPs are actually another energy technology that's widespread here.
I think it could work for some college campuses too? I know there are a lot that use (used?) centralized steam heating and have a lot of that infastructure to pump the steam around still in place
Other places don't have central heating? Damn, I've always taken it for granted
And if even Meta agrees to do it, there's no excuse left, is there
They did it in a place that most both subsidized and forced Meta to do it. Don't expect them to do it anywhere else.
Yeah this is the sort of problem solving we'll really need moving forward
District climate relies on density, so it really only works in cities.