DC solar configurations require proper integration between the hybrid inverter (DC side), battery stack, and Kora Smart Panel (AC side). DC conductors must terminate at the inverter only, with the Smart Panel operating exclusively on the AC side. Communication between components is essential for net energy calculations, battery management, and system monitoring.
Installations must comply with all applicable codes and local AHJ requirements, including:
In a DC solar configuration, energy flows through the system in the following order:
PV Array → Hybrid Inverter → Battery Stack → Kora Smart Panel → Home Loads / Grid
• DC conductors never enter the Kora Smart Panel
• All DC PV wiring terminates at the hybrid inverter
• The Smart Panel interfaces only on the AC side
• Communication between the inverter and Smart Panel is required for proper operation
• Powerblocks hybrid inverter (DC-coupled capable)
• Compatible battery stack (per inverter manufacturer specs)
• Utility interconnection approval (if grid-connected)
• Active internet connection for commissioning and monitoring
The inverter is responsible for:
• MPPT control
• DC voltage and current regulation
• Battery charge and discharge
• DC-side safety and protection
Follow the inverter manufacturer’s installation manual for:
• PV string sizing
• MPPT voltage and current limits
• DC disconnects and grounding
• Battery installation and wiring
The Smart Panel is responsible for:
• Load monitoring and control
• Grid import and export measurement
• Backup orchestration during outages
• Circuit-level prioritization
The inverter’s AC output is connected to the Smart Panel using the designated battery or inverter input per the Smart Panel wiring diagram.
Communication between the hybrid inverter and Kora Smart Panel is required for:
• Net energy calculations
• Battery-aware load management
• Backup coordination
• Accurate monitoring in the Kora app
Follow the Powerblocks communication wiring instructions and ensure:
• Communication cables are routed through low-voltage pathways
• LV wiring is separated from high-voltage conductors
• All connections are secure before energizing
Before leaving the site, verify the following:
• PV production is visible in the inverter interface
• Battery charging behavior is confirmed
• No inverter faults or warnings are present
• Smart Panel powers on normally
• Correct net import and export values are displayed
• Battery and solar activity are visible in the Kora app
• Communication status shows connected
• Routing DC conductors into the Smart Panel
• Assuming the Smart Panel manages PV generation
• Skipping inverter-to-panel communications
• Commissioning the inverter but not the Smart Panel
• Leaving the system without verified app visibility
In DC solar configurations, the inverter controls generation and storage. Kora controls loads, backup behavior, and grid interaction. Keeping these responsibilities clearly separated is critical for safety, performance, and code compliance.
Do not energize or commission the system until both the inverter and Smart Panel have been fully verified.
