The word wireless is obviously of high value, but I personally am not super keen on the combination with electrical. However, WirelessElectricity sold for $1000, so I would see this as comparable, and suggest a price range for end user sale from high $$$ to low $$$$. Domain names (mainly but not exclusively com) with wireless at the start have sold 148 times, while those with electrical at the end 22 times, so the structure of the name has good potential. Good luck with it!