Answer
$1000 MW = 10^{9} W$
$1000 MW = 10^{6} kW$
$1000 MW = 1 GW$
Work Step by Step
$1000 MW = 10^{3} MW. \frac{10^{6}W}{1MW} = 10^{9} W$
$1000 MW = 10^{9} W. \frac{1 kW}{1000nW} = 10^{6} kW$
$1000 MW = 10^{9} W. \frac{1 GW}{10^{9}W} = 1 GW$