This what I believe is available:
AC and DC ESS busses. FAC 1 will display characteristic speeds on no 1 PFD. SFCC 1 is powered.
As far as slat/flap operation is concerned: SFCC 1 will operate BLUE system for SLATS. Residual hydraulic pressure of an idling engine should run the FLAPS slowly through the GREEN system and SFCC 1.