Path-Q Solar

How should a small business assess interconnection risk for a larger commercial solar array?

Answer

Treat interconnection as a feasibility workstream separate from equipment procurement: document the facility's load, service, export profile, and utility study requirements before making major commitments.

Key points

  • Assess peak demand, operating hours, seasonal load, backup generation, batteries, and planned expansion.
  • Confirm service voltage, transformer and switchgear limits, protection requirements, metering, and export controls.
  • Build schedule and financial scenarios for approval, upgrade, curtailment, and delayed operation.

What it depends on

  • Facility load profile and one-line diagram
  • Array, storage, and export-control design
  • Utility study process and available capacity
  • Business operating schedule and financing

Risks and trade-offs

  • Utility upgrades can materially change cost and schedule.
  • An export-limited system may reduce revenue or savings but lower interconnection exposure.
  • Construction or financing commitments made before study results can create stranded costs.

Information you may need

  • Interval load data and utility bills
  • Existing electrical drawings and service information
  • Preliminary system and operating design
  • Utility study scope, milestones, and cost allocation

Your next step

What to do next

Engage a qualified commercial solar engineer and the utility for a documented pre-application or feasibility review before authorizing equipment purchase or construction.

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

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