Step 5: Install Energy Metering

Visibility on power and energy data is needed for the system to operate properly. An energy meter accomplishes this by measuring voltage (by voltage tap) and current (by Current Transformer, CT) at certain points in the system. For Tesla Solar Inverter, there are two primary metering goals:

  • Metering Solar is required so that the customer can view their solar production in the app, and in some cases for sites to qualify for Solar Renewable Energy Credit (SREC) programs.
    • A Neurio energy meter is required for SREC sites, as the Neurio provides greater accuracy than Tesla Solar Inverter.
      • Solar Inverter with Site Controller (1538000-45-y) has a factory-installed Neurio meter and CT for SREC
      • The Neurio meter must be installed for all other Tesla Solar Inverters
  • Metering Site shows the overall power flow to/from a site from the Grid’s perspective. A Neurio energy meter must be installed upstream of all solar production and loads to allow the customer to view their energy usage. Multiple physical Site meters can be installed together where needed, but their sum should capture all of the power flows from loads and solar.
Informational PurposesAn informational icon, calling your attention
Note
The Neurio W2 remote meter for Tesla Solar Inverter (Tesla P/N 1112484-04-y) is the only remote energy meter currently supported for Solar Inverter energy metering.