Stack's Osaka build reveals why data centres take years

Stack shared an update of its new 80MW data centre in Osaka. What are some challenges of building data centres in Japan?

Building a data centre in Japan is quite different from any other part of the world. Here's why.

KIX01A data centre

First, let's take a closer look at Stack Infrastructure's KIX01 data centre campus in Osaka, Japan. This will be jointly constructed and operated with ESR Group.

According to the update over the weekend, construction is ongoing. Here's what we know of the first building, KIX01A:

• Located in suburb of Keihanna, Osaka.
• 3 data centre buildings in the campus.
• First 20MW to be ready Q1 of 2027.
• Remainder under "Future Expansion".

A press release dated 28 April announced the commencement of its construction. With a 2027 completion, that's almost 2 years for 20MW.

BrightRay over in Johor put up a 16.2MW (IT load) data centre in 8 months flat using prefabricated parts shipped from China. Why so slow in Japan?

Built to resist earthquakes

Short answer: The data centres in Japan are literally built to a different standard, as Japan's location on active fault lines requires earthquake-resistant construction.

The most common method is what is known as "base isolation," which entails the creation of siesmic isolators using materials such as rubber, lead and steel plates.

• Installed between structure and foundation.
• This base absorbs shocks from earthquakes.
• Actual building 'floats' above ground.

Hydraulic dampers are sometimes used to further dissipate kinetic energy; devices are often secured by bolting them to the floor slab.

I've only read about the above measures. Hopefully, I'll get to see it in person one day!

Data centres in Japan

Apart from earthquakes, there's also the unique Japanese culture which must be tactfully navigated by all businesses, including by data centre operators.

• There's a need to procure the services of a large general contractor, required to oversee qualified contractors and build the data centre to Japan's stringent standards.
• And yes, construction is directly affected by weather conditions. Seasonal weather patterns and typhoon risks limit both the timing and type of work that can be performed during affected months.

Have you visited a data centre in Japan? Would love to hear of your experience!