Why Sweden / Scandinavia?

Green power
Sweden utilizes the greenest power of any nation in the EU, relying on hydro power and nuclear power for a large percentage of electricity generation.
Security / independence / stability
The Nordic countries enjoy a stable geopolitical environment with a highly-educated and high computer literate populace.

Fiber and technology adoption
There is a high rate of early adoption and reliance on fiber and related technologies, some studies place Sweden number one globally in this regard.
Ping times to Europe / Russia
Competitive ping times to the rest of Europe and Russia. Latency from southern Sweden to Amsterdam is 7ms and 30ms from northern Sweden. Latency to St Petersburg and Moscow is 16ms and 28ms. Improved technology in optics have allowed for large datacenter builds in northern Sweden.