(n) vacuum bulb
(n) extension phone (and its main line)
(n) mercury cell
(n) hydrogen electrode
(n,adj-no) hydroelectricity
(n,adj-no) hydroelectric power generation
water-power generation
(n) (comp) normal mode voltage
(n) capacitance
electrostatic capacity
(n) (comp) power conservation (facility)
(n,adj-no) flash bulb
(n) bound electron
(n) solar battery
(P)
(n) solar radio waves
(n) switchboard
(n) desk phone
(n) geothermal electric power generation
(n) geothermal electric power generation
(n) tidal power generation
(n) direct dialing or calling
(n) commuter train
(n) (telephone) call forwarding
call diversion
(n) Nippon Telegraph and Telephone Public Corporation (defunct)
(n) potentiometer
(n) electric(al) appliances
(n) field emission (electric)
(n) electric (light) bulb
(n) electrical scalpel
(n) electric chair
(n,adj-no) electrophoresis
(n,adj-no) electrochemistry