Plan Distance Between Components

Follow the table below for maximum distances between system components. Wire gauge must meet local codes and in some circumstances wire gauge requirements change based on distance. Refer to Appendix B: Wiring Reference for wire gauge requirements.

Distance to Measure Maximum Cable Length
Backup Gateway 2 to Powerwall+ unit(s)*

150 ft (45 m) for 16 AWG (1.5 mm2) wire
82 ft (25 m) for 18 AWG (0.8 mm2) wire
Neurio Energy Meter to Backup Gateway 2 (RS485 wired connection) 164 ft (50 m)
Backup Gateway 2 / to Internet router (wired Ethernet connection) 328 ft (100 m)

*Total length of communications cable, including daisy-chained connections, through last Powerwall in chain

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Note
As noted in Required Supplies, minimum 600 V rated 4-conductor (twisted pair optional) or double-insulated (with one twisted pair) shielded cable is required for the communication connection between Powerwall and the Backup Gateway 2; see Required Supplies for custom cable requirements.
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CAUTION
Failure to follow minimum cable size and length requirements may result in intermittent or unreliable operation of the Powerwall system. In systems that do not meet these minimum requirements, performance issues may arise even after successful device setup.

Maximum Tesla CT Extension

Tesla 100 A CTs Maximum Extension Length
Using Tesla 100 A CT Extension (10 ft/3 m) (Tesla P/N 1467274-00-x) Up to 12.5 ft (3.8 m)
Using 20 AWG (0.5 mm2) or larger twisted pair conductors Up to 330 ft (100 m)

Maximum Neurio CT Extension

Neurio 200 A CTs (Remote Metering) Maximum Extension Length
Using Neurio CT extension harness (Tesla P/N 1622289-xx-y) Up to 15 ft (4.5 m)