Schema design best practice, storing equipment measurements


I am new to influxdb and wondering what would be the best schema design for a system I want to implement. I have about 80 power meters and want to store data from each of them such as: load on each phase, total kvar, total kWh…

What would be the best practice to implement such system :

  1. 1 measurement per power meter then fields with measured parameters ?
  2. 1 measurement per measured parameters then using tags for power meter location and id ?

Thank you in advance,