- System
- 480/277V · 3Ø · 4W
- Breaker
- 100A / 3P
- Estimated Length
- 184 FT
- Conductors
- 3#3 Cu + #8 Cu GND
- Raceway
- 1-1/4" EMT
Electrical Contracting Intelligence
Understand the job before you bid it.
VoltDrop helps electrical contractors turn construction documents into structured scope, takeoffs, system relationships, run intelligence, calculations, and actionable project information.
AI-assisted · Contractor reviewed · No card required
- UTILITYService480/277V · 3Ø · 4W
- SWBD-1Switchgear1200A · 65kAIC
- MDP-1Main Distribution1200A MLO
- T-1Transformer75 kVA · 480→208/120
- LP-2Panel225A · 42 CKT
- CKT 14Branch Circuit20A · 1P · #12 Cu
- DEVICEReceptacle125V · 20A · NEMA 5-20R
Illustrative system map · Example project data
SCOPE
Understand contractual electrical obligations.
RUNS
Map feeders, circuits, and source-to-load relationships.
MATERIAL
Turn project information into usable takeoff data.
RISK
Surface conflicts, assumptions, and missing information.
A receptacle isn’t just a symbol.
Most takeoff software counts objects. VoltDrop is being built to understand how the electrical job connects — because the cost, the labor, and the risk all live in the relationships, not the count.
- 01Device
20A duplex receptacle, NEMA 5-20R
- 02Circuit
LP-2 · Circuit 14 · 20A / 1P
- 03Panel
LP-2 · 225A · 208/120V · Room 241
- 04Feeder
FDR-014 · MDP-1 → LP-2 · 184 FT
- 05Distribution
MDP-1 ← SWBD-1 ← Utility service
- 06Material
#12 Cu, 3/4" EMT, box, plate, fittings
- 07Labor
Rough-in, wire pull, trim, device
- 08Installation
Sequenced against wall and ceiling work
SOURCE TO DEVICE
- UTILITYService point
- SWITCHGEAR1200A · 65kAIC
- MDPMain distribution
- TRANSFORMER480 → 208/120V
- PANEL225A · 42 CKT
- CIRCUIT20A · 1P
- DEVICEReceptacle
Generic software sees drawings. VoltDrop understands electrical systems.
From contract set to buildable electrical intelligence.
A worked example on a sample project. Every number traces back to the document it came from, and everything the engine is unsure about is flagged for contractor review rather than quietly assumed.
- 01 · UPLOAD
Contract set ingested
- 02 · ANALYZE
Sheets + specs parsed
- 03 · MAP
System relationships built
- 04 · TAKEOFF
Quantities assembled
- 05 · ROUTE
Pathways proposed
- 06 · VERIFY
Calculations checked
- 07 · EXPORT
Handoff packages
- Documents Reviewed
- 9
- Sheets Analyzed
- 34
- Panels Discovered
- 11
- Distribution Equipment
- 4
- Feeders Identified
- 18
- Branch Devices Detected
- 862
- Runs Generated
- 214
- Items Requiring Review
- 3
Project Record
Requires Contractor Review
- Scope Conflict
AHU-3 disconnect responsibility
- Missing Information
27 branch devices without confirmed homeruns
- Revision Impact
Addendum 03 revises LP-2 feeder
AI-assisted · Contractor reviewed
This walkthrough uses sample project data to show how the pieces connect. Full drawing intelligence, automated scope analysis, and routing are in active development — see the capability list below for current status.
A run is a project object, not a line of text.
Feeders and homeruns are where electrical scope becomes buildable work. VoltDrop treats each one as a structured record with a source, a destination, an electrical system, and the material it takes to install.
Example record · Sample project data
- In DevelopmentRun generation · Active development
Source to destination
A run exists because two pieces of equipment are related. MDP-1 feeds LP-2 — that relationship is the record, not a line item on a sheet.
Stable identifiers
FDR-014 stays FDR-014 through estimating, coordination, prefab, and installation. The same object, referenced by the same name, at every stage.
Editable route length
Estimated lengths are a starting point with the assumptions shown. The contractor adjusts them; the run carries the revision.
Carries downstream
Conductors, raceway, fittings, and labor all hang off the run — so a change to the feeder updates everything that depends on it.
Meet Voltaire. Ask the project.
VoltDrop's electrical intelligence assistant. Voltaire reads the set the way an experienced estimator does — across disciplines, against the specification, and with an eye for what doesn't line up.
Electrical projects rarely suffer from a lack of information.
They suffer because that information is scattered across drawings, specifications, schedules, details, revisions, notes, and multiple disciplines.
Voltaire was created to interrogate that information.
- Ask about a feeder.
- Ask what's missing from the scope.
- Ask where a requirement came from.
- Ask which drawing changed.
- Ask why a run was flagged.
Voltaire shouldn’t just give you an answer.
It should show you where that answer came from.
Why Voltaire?
The name begins with the obvious connection to Volt, but the reference goes further.
Voltaire was known for questioning assumptions, argument, inquiry, and reason.
VoltDrop’s Voltaire applies that same mentality to construction documents: compare the information, identify contradictions, challenge assumptions, and surface the items worth another look.
Thankfully, ours knows significantly more about conduit.
Every answer traceable.
Every calculation reviewable.
Eight capabilities. One connected project model.
Each capability is labelled with where it actually stands today. We would rather tell you what is still being built than have you find out during a bid.
- In Development
01 · INTELLIGENCE
Understand the electrical scope.
Review electrical drawings together with specifications, schedules, addenda, architectural information, mechanical equipment requirements, and supporting contract documents. Help identify electrical obligations that can otherwise be scattered across the set.
- In Development
02 · TAKEOFF
Quantify what's actually there.
Identify electrical equipment, devices, feeders, raceways, conductors, and relevant assemblies. Connect quantities back to their drawing and document sources.
- In Development
03 · RUNS
Turn electrical systems into organized runs.
Create source-to-destination relationships for feeders and circuits. Organize runs using stable identifiers that can follow the project through estimating, coordination, prefab, and installation.
- Planned
04 · ROUTING
Plan how the work gets there.
Assist with proposed feeder pathways and homeruns. Show estimated route lengths and editable routing information.
Routing recommendations require contractor review and may depend on available architectural and BIM information.
- Early Access
05 · ENGINEERING
Verify the math.
Deterministic calculation engines handle the critical electrical math. AI assists with interpretation rather than inventing engineering calculations.
- Voltage drop
- Conductor sizing
- Conduit fill
- Grounding
- Feeder sizing
- Electrical loads
- Other configurable rules
- In Development
06 · VOLTAIRE
Ask the project.
Ask natural-language questions across project information. Every important response references the drawing, specification, schedule, or source used to produce the answer.
- In Development
07 · RISK
Find expensive questions early.
Surface the items that turn into change orders and RFIs when they go unnoticed until the job is underway.
- Scope ambiguity
- Conflicting documents
- Missing information
- Questionable assumptions
- Unresolved responsibility
- Potential RFIs
- Revision impacts
- Planned
08 · HANDOFF
Take the intelligence downstream.
Create structured information built to support the teams that pick the job up after preconstruction.
- Estimating
- BIM / VDC
- Prefabrication
- Procurement
- Project management
- Field installation
- Work packages
- Labels & reports
Downstream integrations are planned. No third-party integration is available today.
Drawings become intelligence. Intelligence becomes buildable work.
Contract Set
- Drawings
- Specifications
- Schedules
- Addenda
- Details
- Revisions
VoltDrop Intelligence Engine
Deterministic electrical math where the answer must be exact. AI assistance where the work is reading and reconciling documents.
- SCOPEContractual obligations
- SYSTEMSEquipment relationships
- RUNSFeeders & homeruns
- MATERIALTakeoff quantities
- CALCULATIONSVerified electrical math
- RISKConflicts & assumptions
- ESTIMATE
- BIM
- PREFAB
- FIELD
Downstream handoff is planned · No third-party integration available today
Takeoff software counts it. VoltDrop understands it.
Each of these categories does something useful, and most electrical contractors use several of them. What none of them does is hold the electrical system together as one connected model.
- Generic AIRecognizes information.
- Takeoff SoftwareCounts and measures it.
- Estimating SoftwarePrices it.
- BIM SoftwareModels it.
- VoltDropConnects the electrical system.
- SOURCE
- FEEDER
- DISTRIBUTION
- CIRCUIT
- DEVICE
- MATERIAL
- INSTALLATION
Scope. Relationships. Runs. Routes. Material. Calculations. One connected electrical project model.
Intelligence backed by electrical math.
VoltDrop began with a simple idea: electrical calculations should be fast, structured, repeatable, and connected to the rest of the job. What started with voltage drop becomes part of a broader intelligence system connecting electrical scope, runs, materials, and calculations.
Configure inputs and press Run to compute a recommended size.
No calculation yet. Press Run Calculation to evaluate compliance.
Deterministic calculation engines perform the critical electrical math — the formula, the code references, and the assumptions are all shown. AI assists with interpreting documents, not with inventing engineering results.
Every answer traceable. Every calculation reviewable.
Electrical contractors carry the liability for what gets installed. Software that asks for blind trust is not useful to them — so VoltDrop is built to show its work.
Show the source
Derived information carries the drawing, sheet, or specification section it came from. If we cannot point at a source, the item is flagged rather than asserted.
Deterministic where it matters
Critical electrical math runs through calculation engines with published methods and references. AI is used to read and reconcile documents, not to invent engineering results.
Show the disagreement
When two documents conflict, both are shown side by side. The contractor decides which one governs — the software does not quietly pick one.
Review status is explicit
Nothing is silently accepted. Items move from open to reviewed to approved by a person, and the record shows who and when.
Travels with every derived value
- Source drawing
- Specification reference
- Sheet reference
- Confidence level
- Calculation method
- Assumption
- Review status
- User approval status
- Document revision
AI-assisted. Contractor reviewed.
VoltDrop helps your team make decisions. It does not replace professional judgment.
Read the engineering disclaimerThe whole preconstruction team.
Electrical preconstruction is not one job. VoltDrop is designed around what each role actually needs out of the contract set.
Estimators
Bid with the scope actually understood.
Get the electrical obligations out of the set and into a structure you can price — with the conflicts and missing information flagged before the number goes out the door.
- Scope clarity
- Traceable quantities
- Fewer surprises after award
Preconstruction
Resolve the expensive questions early.
Review drawings, specifications, schedules, and addenda together instead of one discipline at a time. Surface the items worth an RFI while there is still time to ask.
- Document reconciliation
- Revision impact
- RFI candidates
BIM / VDC
Start coordination from structured input.
Feeders and homeruns arrive as records with sources, lengths, and stable identifiers — not as a set of sheets somebody still has to interpret.
- Structured runs
- Stable identifiers
- Source references
Project Managers
Know what changed and where it came from.
Revisions and addenda get compared against what was originally bid, so the delta is visible rather than discovered in the field.
- Revision tracking
- Scope deltas
- Documented assumptions
Electrical Contractors
One connected picture of the electrical job.
Scope, systems, runs, material, and calculations held together as a single project model that carries from the bid through to installation.
- Connected model
- Downstream handoff
- Contractor review built in
Your team isn’t on this list?
The pilot cohort is how we find out what we got wrong. Tell us what your preconstruction process actually looks like.
Join early access
Founding Contractor Program.
Commercial pricing is not finalized, so we are not going to invent it. What exists today is a pilot cohort — contractors who get access as capabilities ship and who shape what gets built next.
Early Access
Early AccessNo cost
During the pilot program
- Pilot access to the platform as capabilities ship
- Direct product feedback line to the team building it
- Early access to new features before general release
- Preferred launch pricing when commercial plans open
- Free use of every published calculator, with no run limits
No card required
Free Tools
Available NowFree
Always
- Voltage drop calculator
- Conduit fill calculator
- No account required
When commercial plans are published, early-access participants get the terms they were promised. We are not going to run a countdown clock at you in the meantime.
Know the job before the job knows you.
Join the contractors helping build the next generation of electrical preconstruction software.