The Florida Today article On second flight, SpaceX Falcon 9 rocket to launch 'brute' of a satellite from Cape describes the upcoming SpaceX launch of SES-12. Next to this tiny image of (presumably) SES-12 is the caption:
SES-12 is the largest and most powerful all-electric propulsion communications satellite ever produced, according to manufacturer Airbus Defense and Space. The satellite's launch from Cape Canaveral on a SpaceX Falcon 9 rocket is targeted for 12:29 a.m. Friday, June 1.
The main text of the article also says:
According to Airbus, the satellite is the biggest and most powerful yet to rely entirely on electric propulsion to reach and hold its final orbit high over the equator.
Question: Are they talking about the power output of the solar array, or total RF power transmitted, or power used for the all-electric propulsion, or even the total thrust available ("powerful thrusters")?
Related (though not all-electric propulsion): ViaSat's 18 kW solar array - largest ever for a commercial telecom satellite?