Two things here: one, hovering is actually much more energy intensive than horizontal flight. Two, a megawatt isn't that much energy in the context of aerospace

Two things here: one, hovering is actually much more energy intensive than horizontal flight. Two, a megawatt isn't that much energy in the context of aerospace. A 737 engine produces nearly 100 megawatts at peak output (the engines are rated in terms of pounds of force, so the conversion is a bit wonky).