As of 6/21/21 it appears to be 1 KW:
Short-Wave Radio Frequency Schedule for site Mexico Cityhttps://www.short-wave.info › ...
Jun 21, 2021 — The short-wave radio frequencies used by station BBC for its international English ... 6185 · XEPPM R.Educacion, 21:00, 10:00, 1234567, Spanish, 1, ND.