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Solar & Power

Solar Array Size Calculator

Calculate required PV array size and panel count.

Last validated: Pending

Determine the required DC solar capacity based on daily energy usage, peak sun hours, and system efficiency.

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Input Pattern

Enter values in the left panel, keep units explicit, run the calculation, then copy or share the result. Invalid fields are highlighted immediately.

Site & Load Data

How much energy you use per day on average.

Average daily equivalent full sun hours for your location.

Required Array Size

Input your usage and sun data

We'll calculate the panels you need.

How to use this tool

  1. Enter the required inputs for Solar Array Size Calculator and confirm each value is in the expected format.
  2. Run the tool once with your baseline case and review the output values and notes.
  3. Adjust inputs for at least one alternate case and compare results before deciding.

Worked Example

Auto-generated from the tool's current default or entered inputs.

Example Inputs

Expected Outputs

Interpretation

Scenario Compare (A vs B)

Use this to compare two input sets and quantify change in key outputs.

No comparable scalar inputs were detected for this tool.

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