It depends on your service factor as well. Most high efficiency pumps have fairly high service factor of 1.6 or greater which makes the braking HP (true HP) higher. For a 3/4 HP pump, that is about 1.2 braking HP with a service factor of 1.6. BHP to energy use is about 75%-85% efficiency:

Kw = BHP * .746 / .75 = 1.2 kw

So what you are reading is reasonable.