What was found
ACFT DEPARTED, VFR, RECEIVED IFR CLEARANCE FROM APPROACH CONTROL, BEGAN CLIMB TO 11,000 FT. PILOT DETECTED A STRONG ELECTRICAL ODOR AND CONFIRMED FROM PASSENGERS THAT VISIBLE SMOKE CAME FROM BEHIND SIDE WALL ON ACFT RT SIDE. ELECTRICAL LOADS WERE SHED, AND EMERGENCY DECLARED. EMERGENCY RETURN TO DEPARTURE. SMOKE AND FUMES ELIMINATED/SOURCE OF FIRE EXTINGUISHED THROUGH LOAD SHEDDING. NO INJURIES, DAMAGE TO ACFT, OR FURTHER INCIDENTS.