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Installing Kora with AC-Coupled Third-Party Batteries

(Tesla, Franklin, and Other AC-Coupled Systems) Third-party batteries integrate with Kora through AC coupling. The battery system controls storage and inversion; Kora controls load shedding, priorities, and monitoring.

Written by Paige Tranchina
Updated over 2 months ago

Code Reference (NEC)

  • NEC 706 – ESS requirements

  • NEC 705 – AC interconnection

  • NEC 110.3(B) – Listing compatibility

Requirements

  • UL-listed battery and inverter

  • Utility interconnection approval (if grid-tied)

  • Compatible neutral/grounding scheme

  • Label ESS circuits clearly: “Energy Storage System – AC Coupled”

Wiring Overview

Battery inverter → Dedicated breaker → Kora Smart Panel

  1. Battery AC output lands on a designated breaker or backup input

  2. No DC conductors enter the Smart Panel

  3. Follow manufacturer requirements for disconnects and OCPD

Functional Boundaries

  • Kora does not send charge/discharge commands to most third-party batteries

  • Kora controls load shedding and prioritization

  • CT accuracy is critical

Important Notes

  • Backup runtime depends on battery system limits and circuit priorities

  • Verify export limits are enforced per utility rules

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