1. Metering Grid-tie with Battery Backup
Realities of Production Metering PV with Energy Storage
11/3/2016

2. Measuring RE Production – 4 Port
Metering On All Outputs Ensures All System Contributions Are Captured
A + B – C = Total Production
Solar
Inverter
Protected Loads C A B
Main Service Panel
Protected Load Panel
Battery

3. Measuring RE Production – CT Meter
Pass-thru to loads nulls out meter – only system’s contribution increments
Solar production increments up
Charging increments down
Inverter
Solar
Protected Loads
CT Meter
Protected Load Panel
Main Service Panel
Battery