Site and Solar Metering for Backup Gateway 2
Backup Gateway 2 makes metering simple with built-in options for Site and Solar metering:
- Internal Primary Meter (Meter X) – This Site meter may be used when the Grid connection is at the Supply terminals. No additional steps are needed during install. If there are any loads or solar upstream of the Supply terminals, Tesla 100 A CTs connected to the Internal Auxiliary Meter can be used to measure loads less than 100 A, or a Remote Energy Meter can be used to meter the Grid connection point.
- Internal Auxiliary Meter (Meter Y) – Metering solar circuits inside the Gateway or in adjacent switchboards is simple with the three (3) internal CT connections for use with Tesla 100 A CTs. One Tesla 100 A CT is included in the Accessory Kit, and additional CTs (Tesla P/N 1467316-00-x) may be ordered individually.
The Tesla 100 A CTs may be extended a max distance of 330 ft (100 m) by splicing twisted pair or using the Tesla 100A CT Extension (10 ft/3 m) (Tesla P/N 1467274-00-x). Use 20 AWG (0.5 mm2) conductors or larger to extend CTs up to 330 ft (100 m). Voltage rating of the extension wire must be equal to or greater than all other adjacent circuits.
Depending on site layout it may not be possible to use internal Gateway 2 meters, and Remote Energy Meters will be required.
- See Appendix D: Configure Energy Metering for further guidance on metering.
- See Appendix E: Installing a Neurio Energy Meter for Remote Neurio Meter installation instructions.