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Electrical panel and service-upgrade bid review checklist

An apples-to-apples electrical service or panel proposal checklist for load calculation, utility requirements, service rating, meter and mast work, panel type and location, feeder and grounding scope, surge and protective devices, circuits and directory, patching, permits, outage planning, future EV or heat-pump capacity, warranties, and payment terms before contractor selection.

6 items to check

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Every bidder addresses the same problem, future loads, and service objective

Critical item

The proposal should distinguish panel condition, service capacity, circuit space, code corrections, insurance concerns, and planned electrification loads.

Load calculation and utility scope are explicit

Critical item

Service size and utility work should be based on an accepted load method and utility rules rather than panel slot count alone.

Panel, service equipment, meter, disconnect, breakers, and future spaces are identified

Critical item

The exact equipment and ratings should support the approved design and available fault current.

Grounding, bonding, surge, AFCI/GFCI, feeder, and correction scope are listed

Critical item

Required safety and fault-protection work should not appear later as an unlimited add-on.

Permits, outage, temporary power, access, trenching, patching, labeling, and cleanup are assigned

Critical item

The owner should understand disruption and restoration beyond the panel box.

Inspection, testing, directory, utility release, warranty, and payment milestones are deliverables

Final payment should follow safe energization, official approval, labeling, and documentation.

Use after receiving written proposals and before selecting an electrician. A panel replacement, service upgrade, load-management system, or subpanel can solve different problems; the scope must identify which is being provided. Do not remove electrical covers, operate unapproved equipment, test energized conductors, backfeed circuits, or bypass interlocks. Service, panel, EV, generator, solar, and battery work must be performed and inspected by qualified persons where required.

Reference standards

  • Approved load calculation and electrical design, adopted state and local electrical, building, fire, energy, and utility requirements, permit and inspection conditions, authority having jurisdiction requirements, utility interconnection rules, signed scope, and exact panel, service, EV charging, generator, transfer equipment, solar, inverter, rapid-shutdown, battery, and monitoring manufacturer instructions
  • DOE home-electrification guidance and current utility service requirements applicable to the address

    • Tools

  • Written proposals, service and load calculations, one-line diagram, equipment schedules, permit, utility approvals, and authorized changes
  • Equipment labels, commissioning forms, torque or test records where provided, photographs, and owner account documentation
  • Qualified electrical test instruments used only by competent and authorized personnel

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