How Much Does Electrical Engineering Cost for Commercial?
Commercial electrical engineering typically costs $8,000 to $50,000+, depending on building size, service size, and system complexity. A straightforward office TI is at the low end; hospitals, data centers, and industrial facilities with large services, emergency systems, and specialized distribution run far higher. Electrical is usually 20-30% of the total MEP fee.
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What the electrical engineer designs
Service and distribution (service size calculations, switchgear, panelboards, feeders), lighting and lighting controls (photometrics, Title 24 / energy code compliance, emergency egress lighting), fire alarm systems, power for HVAC and plumbing equipment, receptacle and equipment layouts, grounding and lightning protection, and specialty systems: emergency/standby generators, UPS, EV charging, and photovoltaic interconnection.
What drives the fee
Service size (a 400A service versus a 4000A service is a different project), emergency and life-safety systems (hospitals and high-rises multiply complexity), lighting control requirements (Title 24's mandatory controls add real design hours), existing-building constraints (available fault current, panel space, conduit routing through occupied space), and utility coordination — service upgrades involve the utility's timeline, which the engineer manages but cannot control.
Coordination notes
Electrical needs early input from everyone: the architect for lighting design intent, the mechanical engineer for equipment power requirements (get the MCA/MOCP values early), the owner for IT and specialty loads, and the utility for service requirements. Short-circuit and arc-flash studies are increasingly required at permit or closeout — scope them upfront rather than discovering them as a plan-check correction.
The bottom line
Budget $8,000-$50,000+ for commercial electrical engineering — 20-30% of MEP. Service size, emergency systems, and lighting controls drive the fee; coordinate equipment power needs and utility service early.
Torch Engineering PLLC · (480) 490-0064 · info@torchengineering.com — PE stamping backed by Apex Grid Engineering.