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AI drafting for panel schedules

AI Panel Schedule Drafting

A panel schedule is only as good as the last time someone walked every circuit tag on the plans back to it. Nomic reads your circuited power, lighting, and mechanical plans, builds each panel schedule with breakers, poles, and load per phase, and checks the names and ratings against the one-line, in Excel and drawn on the sheet.

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Last reviewed: November 2026

You send

  • Circuited power and lighting plans as DWG or PDF
  • Mechanical, plumbing, and kitchen equipment schedules
  • The one-line diagram or the engineer's panel list
  • Demand factors and spare rules from your engineer
  • Your panel schedule template

Nomic hands back

  • Panel schedules as an Excel workbook
  • The same schedules drawn on the E-sheets in DWG
  • A list of plan and schedule mismatches
  • Open questions for the engineer of record
PANEL LP-2A208Y/120V 3PH 4W | 225A MLO | SURFACE | FED FROM T-2CKTDESCRIPTIONBKRVAPHVABKRDESCRIPTIONCKT1RECEPT RM 30120/11245A99820/1RECEPT RM 30423RECEPT RM 30220/11289B45320/1EWC45LIGHTING CORR20/1785C78320/1LIGHTING RMS67RECEPT RM 30320/11341A97120/1DATA RACK89FCU-120/1375B20/1SPARE1011RECEPT RM 30420/11014C20/1SPARE1213EWC20/11279ASPACE1415LIGHTING RMS20/1417B103220/1RECEPT RM 3011617DATA RACK20/1735C36320/1RECEPT RM 3021819SPARE20/1A126620/1LIGHTING CORR2021SPARE20/1B66120/1RECEPT RM 3032223SPACEC93720/1FCU-124CONNECTED LOAD 18.4 KVA | DEMAND 14.9 KVA | 51 APHASE A 6.2 KVA PHASE B 6.1 KVA PHASE C 6.1 KVA1APANEL SCHEDULESSCALE: NONE1234CONSULTING ENGINEERSREVISIONS1ISSUED FOR REVIEWPROJECTRIVERSIDE HOTELSCALENONEDATE05/22/2026KEY PLANSHEET TITLEPANEL SCHEDULESSHEET NUMBERE-701

On the sheet

Panel Schedules, annotated

A panelboard schedule with every circuit, breaker, phase, and load, totaled for connected and demand load.

  1. 1Circuit numbers, odd left and even right
  2. 2Load description matching the plans
  3. 3Breaker size and phase
  4. 4Connected and demand load totals

The problem

Panel schedules drift from the plans

Building a schedule means opening every power and lighting sheet, collecting each homerun tag, and typing the description, breaker size, pole count, and volt-amperes into the right slot. Two-pole and three-pole loads have to land on positions that pick up the correct phases, the phases have to balance, and the spares and spaces have to follow the firm standard. One 42-circuit panel takes an afternoon, and a building with 30 panels repeats that afternoon 30 times.

Then an addendum adds a rooftop unit, or the kitchen consultant reissues the equipment list, and the schedule falls behind. The comments reviewers write most are predictable: a circuit on the plan that never made it onto the schedule, two loads sharing one circuit number, a panel called LP-2A on the schedule and LP2A on the one-line, or a 10 kAIC panel shown where the short-circuit study puts the available fault current higher.

01 / Collect

Every circuit pulled from the plans

Point Nomic at the circuited plans and equipment schedules. Nomic reads each homerun and circuit tag, pulls nameplate data from the mechanical and kitchen schedules, and groups the loads by panel before a single schedule is drawn.

  • Lighting and receptacle circuits read from the tagged plans
  • Motor and equipment loads taken from the equipment schedules
  • Panel names, voltage, and bus ratings read from the one-line
02 / Schedule

Load tallies in Excel and on the sheet

Nomic fills each slot with the description, breaker, poles, and volt-amperes, totals connected load by phase, and applies the demand factors your engineer sets. The same schedule is saved as an Excel workbook and drawn in your schedule block on the E-sheet, so the two never disagree.

  • Multipole loads placed on positions that pick up the right phases
  • Spares and spaces added to your firm standard
  • Connected and demand load totals per phase and per panel
03 / Check

Matched to the one-line and the plans

Nomic checks every schedule both directions: each circuit on the plans appears on a schedule, and each schedule entry appears on a plan. Panel names, voltages, bus and main ratings, and interrupting ratings are compared with the one-line and the engineer's fault current values, and every mismatch is listed.

  • Plan circuits with no schedule entry flagged
  • Panel names and ratings compared with the one-line
  • Circuit descriptions written by load, as NEC 408.4(A) requires

Checked against

The code and documents behind every sheet

Name the editions the project is designed to and Nomic checks its own drawing against them before handing it back. Your engineer or architect of record makes the final call and stamps the set.

  • NEC 408.4 circuit directory and source identification
  • NEC 110.9 and 110.10 interrupting and short-circuit ratings
  • NEC Article 220 load calculations
  • NEC 210.20 and 215.3 for continuous loads
  • The one-line diagram and feeder schedule
  • Your firm panel schedule template

How it works

From a sentence to a stamped set

  1. Step 1

    Ask for the drawing

    Say what the sheet needs to show and attach the backgrounds, markups, cutsheets, or photos. A sentence is enough to start.

  2. Step 2

    Nomic drafts it in CAD

    Nomic works in CAD on its own computer, on your layers and blocks, following how your firm drew the same thing before. It saves real DWG files to the project.

  3. Step 3

    Nomic checks its own work

    The drawing is checked against the code editions you name and the source documents. Everything Nomic drew is clouded, and open questions are listed.

  4. Step 4

    Your team reviews and stamps

    Your engineers and architects review the clouded changes, make the final call, and issue the set under their own stamp.

FAQ

Frequently asked questions

Yes. Nomic reads the circuit tags and homeruns on your power and lighting plans, pulls equipment loads from the schedules, and builds each panel schedule with descriptions, breakers, poles, and volt-amperes per phase. It saves the result in Excel and draws it on the sheet in DWG.

No. Your engineer sets the demand factors, the bus and main ratings, and the feeder size. Nomic applies the factors they give it, totals the loads, and flags a panel whose totals look wrong against its ratings, and the engineer makes the final call.

Nomic places multipole loads on positions that pick up the correct phases and arranges single-pole circuits to keep the phases close. Where loads cannot be balanced within the limit your engineer sets, Nomic flags the panel instead of moving circuits the engineer has assigned.

Nomic compares every panel name, voltage, phase, bus rating, main breaker, and interrupting rating on the schedules with the one-line diagram and lists each mismatch. When a circuit changes on a plan, Nomic updates the schedule and clouds both sheets.

No. Nomic is not a plugin for either. It saves an Excel workbook and DWG sheets to the project, and Revit teams can use the workbook and change list to update panel schedules in the model.

Keep reading

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What is a panel schedule?

What a panelboard schedule lists and how it is read.

What is a one-line diagram?

The power distribution diagram panel schedules must match.

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AI Panel Schedules from Circuited Plans, Excel and DWG | Nomic