Dublin was just beginning to be electrified.
Neither the Tower nor 7 Eccles seems to have any electricity.
The Library does, the Pigeonhouse is a power station, the trams are electric.
Bloom dreams of electrical devices, and theorizes about its effects.
Some street lights have been converted from gas to electric.
The ballast office clock works by electric wire, and the race results come by telegraph.
The newspaper and some stores have telephones.
(Would the printing presses use electric motors?)
The theatres probably used arc lighting.