The reason behind installing these displays might be related to new regulations introduced by the Bureau of Standards, Inspection and Quarantine of the Ministry of Economic Affairs in Taiwan. The regulations stipulate the need for certified legal measuring instruments that display energy consumption, with accuracy up to the third decimal place.
At least three sites have been equipped with these displays: Taoyuan Qingpu, Zhengda Public Enterprise Center, and Tainan Yongkang Aimai.
It's a bit odd and doubtful that Tesla would develop something like this on its own, especially since they have V4 Superchargers (with small screens) in the pipeline. The extra gadget increases the cost.
It looks like Tesla had to put in such devices. The following question is whether it's a short-term fix until the V4 Superchargers come to Taiwan or if it's a permanent one.
There is a chance the new hub could become accessible to non-Tesla electric vehicles if equipped with a bank card reader, similar to the V4 stalls. Nevertheless, Tesla can still open the network exclusively through the Tesla app.
Source: ddcar