Solar flight surfaces !

I calculated the surfaces that could be used to fly in solar flight conditions.

The minimum power to stay in level flight is 440 kW this can be obtained by the larger side view and rudder area also in the evening around 21:00 ( 9 PM ) in Finland during the summer using ( cheap ) 10% efficient panels. I assume 750 Watts ( 1 hp ) is needed to climb efficiently. Take off from asphalt takes around 2 kW...take off from soft surface need 5-10 kW.