The property’s electrical supply arrangement is relevant to solar planning. Customers should provide the available supply and equipment information so the installer can assess the appropriate design.
Start with the existing installation
Share bills, existing electrical drawings where available and information about major equipment. Some appliances or machines may have particular supply requirements. The installer should verify the actual arrangement rather than relying on assumptions based on the type of building.
Ask what the proposal serves
If backup is included, request an explanation of which circuits and loads are supported. Headline inverter capacity does not describe every phase-related operating limit. Any proposed supply or circuit alteration should be clearly identified and reviewed by the relevant professionals.
Document the supply arrangement and important loads
Share the existing supply details and identify any three-phase machines or unevenly distributed building loads. An inverter’s total power rating alone does not describe phase-specific operation or backup capability. Ask the design team to explain the intended connection and supported circuits. The owner should receive a usable description of the result without being expected to rearrange electrical circuits personally.
Your practical checklist
- Provide existing supply information
- Identify equipment with specific supply requirements
- Ask for a clear served-circuit description
Does a three-phase supply mean any three-phase inverter is suitable?
No. Equipment limits, the proposed connection and the load arrangement still need assessment.
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