For a price of this LNG tanker, you could have 3 (three!) 15,000 TEU container vessels.

And this photo is part of the answer why. :)

This is the starboard engine room (three engines), and the whole system consists of 6 Wartsila-Hyundai engines driving 4 x 11,250 kW generators and 2 x 8,450 kW generators, connected to 3 electric motors of 15,000 kW driving 3 Azimuth electric drive units at 150 rpm.

Total power: MCR 62,700 kW (85,246 hp), giving this vessel a service speed of 19.50 knots.