Battery System Installation Guide

Installation guide for battery systems including NEC code references, supported architectures such as Tesla Powerwall and Powerblocks, wiring procedures, and commissioning checklist.

Code Reference (NEC)

• NEC 706 – Energy Storage Systems
• NEC 705 – AC-coupled systems
• NEC 480 – Storage Batteries (as applicable)
• NEC 110 – Working clearances and ventilation

Supported Architectures

• AC-coupled batteries (Tesla Powerwall, EcoFlow, etc.)
• DC-coupled batteries via hybrid inverter (Powerblocks)

Kora interfaces on the AC side unless otherwise specified.

Key Installation Principles

• Battery systems must be listed and approved per AHJ
• Kora does not replace the inverter or battery BMS
• Backup behavior is orchestrated by Kora using circuit priorities

Wiring and Installation Steps

1. Install battery system per manufacturer instructions
2. Land battery/inverter AC output at the designated breaker or input
3. Size conductors per battery/inverter specs
4. Install battery CTs if required
5. Confirm neutral and grounding scheme compatibility
6. Verify communication links where supported
7. Configure backup priorities in app

Powerblocks-Specific Notes

• Communication cabling required
• Daisy-chain supported (up to 4 stacks)
• Refer to Powerblocks manual for stacking limits

Commissioning Checklist

• Battery visible and reporting correctly
• Charge/discharge behavior confirmed
• Backup mode tested successfully in app