Construction or critical facilities: which job is it?
There are two different jobs under this title. Construction electricians build the place. They set gear, pull feeders, hang busway, terminate, and stay through startup. On a large campus the work can run for years. One New Mexico IBEW local has had about 450 members on a single campus for five years and expects another 10 to 12. Crews often come back to rip out and replace cooling and servers in the first building before the last one is finished.
Critical facilities electricians run and maintain a site after the owner moves in. The work is preventive maintenance and upgrades on UPS units, PDUs, generators and cooling gear, done while the servers stay up. A New York City posting for an electrician asks for journeyman-level data center experience with battery and flywheel backup, diesel generators over 1 megawatt, loaded and unloaded testing, and running a building through a real blackout on backup power.
What equipment you work on
A big data center has nearly every piece of the grid except the power plant: incoming high-voltage service, substations, transformers, switchgear, backup power, and dense power and data cabling. One data center near Columbus, Ohio, built by IBEW members, draws more than 120 megawatts through three power feeds and has about 50 generators. On a typical day you are setting and landing switchgear, installing UPS systems and battery strings, running busway overhead to the server rows, and wiring generator and transfer controls.
Commissioning comes at the end of the build. Each system is energized, loaded and tested before the owner accepts it. Electricians work beside third-party testing reps. In one IBEW photo a journeyman checks for hot spots while a large transformer is commissioned. Testing firms hire their own technicians, and NETA certifies them at four levels, from trainee up. If you like troubleshooting more than installing, this is the path to aim for.
Overtime, shifts, travel and per diem
The owners are racing to get capacity online, and schedules show it. One Columbus, Ohio local reported members working 50 to 60 hours a week, sometimes on two shifts, with 100 to 300 members on each project. BLS says electricians on construction sites should expect overtime. Overtime is where most of the extra money on these jobs comes from.
Some single projects need two to four times more electricians than the local union has. That shortfall pulls travelers in from other areas. An IBEW representative put it this way: the money moves the same limited pool of skilled people around the country. Travel jobs may pay a daily per diem, but the amount and the rules depend on the contract or the employer. Get it in writing before you pack the truck.
How to get on these jobs
Most of this work goes to union contractors. In Northern Virginia, the country's largest data center market, Washington, D.C., Local 26 does close to 97% of the data center work. The direct route is an IBEW-NECA apprenticeship in a data center market, or a dispatch through the local hall once you are a journeyman. Locals near big projects are expanding fast. Baltimore Local 24 has nearly tripled its apprenticeship.
Already working nonunion? Locals short on hands are organizing experienced electricians straight onto jobs. Dallas Local 20 verified work hours and dispatched applicants from a single job fair. Baltimore's local said its examining board would meet as often as needed. The customers make every contractor sign a non-disclosure agreement, so expect to keep quiet about the site.
Pay
USD a year, before tax. Ranges run from the 25th to the 75th percentile for all electricians. They come from U.S. Bureau of Labor Statistics OEWS data for May 2025, moved to 2026 with a wage index, and the state figures are modeled. These are not data center rates. Long overtime weeks, union scale, travel pay and per diem can push actual earnings well above these numbers. Refer to the Electricians salary guide for figures from live adverts.
What you need
- ApprenticeshipMost electricians train through a 4- or 5-year apprenticeship. Each year usually includes about 2,000 hours of paid on-the-job training plus classroom instruction.
- State licenseMost states require electricians to be licensed. The exams cover the National Electrical Code plus state and local codes.
- Backup power experienceCritical facilities roles ask for hands-on work with UPS, battery and flywheel systems, and large diesel generators, including load testing.
- Testing certificationFor commissioning and testing work, NETA certifies technicians at Level 2, 3 or 4. You have to be employed by a NETA Accredited Company to hold it.
- Long hours and travelExpect 50- to 60-hour weeks, possible second shifts, and long commutes or travel to the next campus.
- ConfidentialityThe big owners require non-disclosure agreements from every contractor on site.
How to get there
- Year 1Start an apprenticeshipGet into a union or open-shop program. A local near a data center market gives you the best shot at early data center hours.
- Year 1-5Learn the gear as an apprenticePull feeders, set switchgear, hang busway and wire generator controls under a journeyman.
- Year 4-5Get licensedFinish your hours and pass your state's journeyman exam where one is required.
- Year 5-8Work large builds as a journeymanTake dispatches or travel to campus projects, stay through startup, and get on the commissioning crew.
- Year 7+Specialize or step upMove into critical facilities operations, NETA testing, or foreman work on a build.
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Questions people ask
Is data center electrical work mostly union?
In the main markets, yes. In Northern Virginia, IBEW Local 26 does close to 97% of data center work, and the IBEW reports that most of this work goes to its signatory contractors even where its overall market share is low. Nonunion and open-shop contractors still do some data center work, so check who is building in your area.
What is the difference between a data center construction electrician and a critical facilities electrician?
Construction electricians build and energize the site, then move on to the next building or campus. Critical facilities electricians stay on after the owner moves in and maintain UPS, generators, PDUs and switchgear while the servers keep running. Construction usually means more overtime and travel. Facilities work means a fixed site and maintenance windows.
Do data center electricians work a lot of overtime?
Usually. Owners lose money every day a building is not running, so schedules are tight. One Ohio local reported members working 50 to 60 hours a week, sometimes on two shifts.
Do I need to travel to work on data centers?
Not if a project is near you. Some projects need several times more electricians than the local union has, though, so travelers fill the gap. If you take a travel job, get the per diem and travel pay terms in writing first.
Can an apprentice work on a data center?
Yes. Apprentices work under journeymen on these builds, and locals near big projects are growing their apprenticeships. Baltimore Local 24 nearly tripled its program to keep up with a large data center campus.
Sources
- U.S. Bureau of Labor Statistics: Occupational Outlook Handbook, Electricians
- IBEW: The Data Center Surge, A New Generation of IBEW Jobs
- IBEW: A 21st Century Goldrush, Inside the Race to Store the World's Data
- IBEW: Organizing at Its Roots, Dallas drive
- IBEW: Google funding means more jobs, training for IBEW members
- NETA: Technician Certification
- NYC Jobs: Electrician posting with data center backup power requirements
- NYC Jobs: Director of Critical Systems Infrastructure
