I lived in Jakarta in 2010... there is no such system operating (and IMO there never will be - it is inferior to conventional electric light rail despite the claims to the contrary made in the video).

But there are a bunch of unused concrete pylons that look just like the ones in the video on certain roads. I was told that was for a light rail system that got cancelled due to rising cost issues. Not sure it was this though, a Japanese contractor that was shafted by the government was mentioned.