Path-Q Solar

What information should I gather before asking whether solar can serve a detached workshop?

Answer

Gather the workshop's location, electrical connection, service rating, current and planned loads, and any trenching or access information. Solar can serve it directly or through the main building depending on the wiring arrangement, distance, capacity, and design requirements; an installer should assess the complete electrical path rather than size the array from the workshop alone.

Key points

  • Document whether the workshop has its own meter, panel, feeder, or service from the main building.
  • List tools, heating, cooling, compressors, chargers, and other loads, including starting or surge demands.
  • Provide cable distance, conduit route, trench condition, and photos of both buildings' electrical equipment.
  • Clarify whether the goal is to offset workshop use, provide backup, or operate independently.

What it depends on

  • Ownership and electrical connection between buildings
  • Workshop load profile and simultaneous-use assumptions
  • Feeder capacity, voltage drop, and available space
  • Roof, ground-mount, shading, and equipment locations

Risks and trade-offs

  • Long or inadequate feeders can require additional electrical work.
  • High-starting-current tools may need more inverter capacity than their running wattage suggests.
  • A separate service or independent system can improve autonomy but increase equipment and maintenance complexity.

Information you may need

  • Utility bills or submeter data, if available
  • Panel and feeder ratings with photos
  • Appliance and tool nameplates or load estimates
  • Distances, site plans, and intended backup requirements

Your next step

What to do next

Give an installer the building and load information and request a written electrical-path assessment with any required feeder or service work identified.

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SQ02064