This is a pretty slick little solution for upgrading the piano to a usable format.
Amazon.com: HQRP AC Power Cord Compatible with Yamaha CVP-49 / CVP-79a / CVP-105 / CVP-107 / CVP-109 / CVP-700, Mains Cable Plus HQRP Euro Plug Adapter, Black : Musical Instruments
Yamaha Clavinova Cvp-107 Keyboard Piano | Proxibid