MVA

Apparent Power expressed in Million Volt-Amps.

Metal Halide Lamp (MH)

An HID light source in which the arc tube’s primary internal element is Mercury Vapor in combination with Halides (salts or iodides) of other metals such as Sodium or Scandium.

Metering (tariff)

Energy values computed from digital and/or analog inputs during variable periods and dedicated to energy measurement for billing purposes.