Current most powerful is 2000 kW in France. How these modern ones are different from old times. https://en.wikipedia.org/wiki/Roumoules_radio_transmitter https

Current most powerful is 2000 kW in France. How these modern ones are different from old times. https://en.wikipedia.org/wiki/Roumoules_radio_transmitter https://en.wikipedia.org/wiki/Roumoules_radio_transmitter "..The longwave transmitter at Roumoules, which was inaugurated in 1974, transmits at 216 kHz (until 1988: 218 kHz) with a transmission power of 1400 kW (until 1976: 2000 kW)...."