https://www.eficaa.com/
As commercial use of electric energy spread in the 1880s, it became increasingly important that an electric energy meter, similar to the then existing gas meters, was required to properly bill customers, instead of billing for a fixed number of lamps per month. Aron's meter recorded the total charge used over time, and showed it on a series of clock dials.
#eficaa #invention #metre #energymetre #hermannaron #eficaa #saveenergy #eficaahyderabad #eficaaensmart #powergen #energyexperts #energymarket #powerindustry ##manageenergybetter