Hai narayanan,
Static power analysis is analysing the power when there is no change in input..
Dynamic power analysis is analysing the power when the input changes its state often.. Dynamic power dissipation invovles charging and discharging of capacitances.
In clock tree synthesis, switching of input will happen thats why we are calculating this dynamic power.. so that we can calculate the maximum level..
i use report_power to calculate the value in encounter..
Refer below to get more