In an article (Kai Ludwig, Radio Eins Radio-News (2021-12-14)) about a new SW transmitter to Rádio Nacional do Brasil I found this about the MW:
(Google translated from German)
On the medium wave 980 kHz, the old tube transmitter has now been replaced by a transistor transmitter that runs at 230 kW in the evenings and at night. From 1999 to 2018, when the Trans World Radio station on Bonaire worked with “only” 100 kW, it was the most powerful medium wave transmitter in the western hemisphere.
Ydun Ritz (2021-12-15)