Path-Q Solar

How is the right solar system size calculated for my home?

Answer

Sizing combines annual electricity use, expected solar production, usable roof area, shading, equipment limits, desired bill offset, export rules, and budget.

Key points

  • Use at least a full year of bills when available.
  • Production is modeled by roof orientation, tilt, shading, and local solar resource.
  • The largest physically possible system is not always the best value.

What it depends on

  • Load profile and future electricity use
  • Roof and shading survey
  • Utility compensation and design limits

Risks and trade-offs

  • Over- or undersizing can reduce value.
  • Annual matching can hide seasonal or hourly mismatches.

Information you may need

  • Bills
  • Roof dimensions and shading
  • Future loads and financial objective

Your next step

What to do next

Request a production model showing annual output, monthly output, assumptions, and proposed system size.

Path-Q

Find the right next step

Answer a few questions and we’ll narrow your options.

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Some details may depend on your location, installer, utility, incentives, regulations, or specific property.

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