If you're a licensed NJ electrician working in PSE&G territory, you've filed an ESI application. But if you're like most contractors, you learned the process by trial and error — because the only official documentation is a stack of PDFs on PSE&G's website that were clearly written for utility engineers, not electricians.
This guide is the one we wish existed when we started. It covers what an ESI is, when it's required, what PSE&G actually needs from you, how long it takes, and the parallel-filing strategy that keeps your job on schedule.
What is a PSE&G ESI?
ESI stands for Electric Service Installation. It's PSE&G's formal record for any project that involves changes to the utility's side of your customer's electrical service — the meter, the service entrance, the service conductors, or the connection point where the utility ends and the electrician begins.
When you file an ESI, you're telling PSE&G: "Something is changing at this address that affects the utility infrastructure, and we need your coordination before the job is complete."
PSE&G creates an ESI number in their Distribution Work Management System (DWMS) and assigns it to your project. That number becomes the reference for scheduling utility inspections, coordinating service disconnects and reconnects, and ultimately getting the meter set or reset.
The ESI number is not optional. Without it, PSE&G won't schedule a meter pull, won't reconnect service after an upgrade, and won't sign off on a service change. The job cannot be completed.
When is a PSE&G ESI required?
An ESI is required any time a project involves:
- Service upgrades — increasing ampacity (100A → 200A, 200A → 400A, etc.)
- Service changes — replacing the service entrance conductors, meter socket, or main disconnect
- New electrical service — new construction, additions, or previously unmetered structures
- Meter relocations — moving the meter socket to a new location on the building
- Temporary service — construction power for new construction or major renovations
- Service reconnection after disconnection — if service was disconnected for any reason and needs to be restored with a changed configuration
An ESI is generally not required for:
- Panel upgrades where the service entrance and meter are not touched (sub-panel upgrades, main panel replacement within the same service size and location)
- Circuit additions, outlet and fixture work, low-voltage work
- Like-for-like meter socket replacements in the same location with no ampacity change
When in doubt, file the ESI. PSE&G would rather review an unnecessary application than be called in for a reconnect with no record in their system.
PSE&G vs. JCP&L territory — know which utility you're in
PSE&G and Jersey Central Power & Light (JCP&L) are two separate utilities serving different parts of New Jersey. The ESI process differs between them, and the first mistake many contractors make is assuming all of NJ is PSE&G.
PSE&G territory covers: Hudson County, Essex County, Bergen County (most), Passaic County, Union County, Middlesex County (most), Somerset County, Mercer County, and parts of Morris and Sussex. This is the northern and central urban corridor — Jersey City, Newark, Hoboken, Bayonne, Elizabeth, Paterson, Trenton, and surrounding areas.
JCP&L territory covers: Monmouth County, Ocean County, parts of Middlesex County, parts of Morris County, Warren County, and areas of Hunterdon and Sussex. This is the central and shore corridor — Toms River, Freehold, Red Bank, Dover, and surrounding areas.
If your job is in JCP&L territory, the application process goes through JCP&L, not PSE&G. The forms are different, the contacts are different, and the timelines differ. ClearPath files both — see our guide on JCPL ESI applications for the specific differences.
The PSE&G ESI application: what you need
PSE&G has two primary ESI application forms depending on the type of service:
Residential Application for Electric Service — used for 1-4 family residential projects involving new service, service upgrades, or service changes.
Commercial/Industrial Application for Electric Service — used for commercial, multifamily (5+ units), and industrial projects.
Both applications require:
- Property address — exact service address, not mailing address
- Customer name — the account holder or property owner
- Contractor information — your license number, company name, contact info
- Type of work — new service, upgrade, change, temporary, etc.
- Proposed service size — ampacity (100A, 200A, 400A, etc.)
- Number of meters — single-meter residential vs. multi-meter multifamily
- Meter socket location — existing or proposed location on the building
- Estimated start date — when you plan to begin work
- Estimated completion date — when you plan to be ready for reconnection
For service upgrades on existing residential accounts, PSE&G also typically wants:
- Confirmation of the existing service size being replaced
- Indication of whether temporary service is needed during the upgrade
- Load calculation or service size justification for upgrades above 200A
How to submit the PSE&G ESI application
PSE&G accepts ESI applications by:
- Email: Send the completed form to ConstructionNorth@pseg.com (Hudson, Essex, Passaic, Bergen, Morris, Sussex, Warren) or ConstructionSouth@pseg.com (Middlesex, Union, Somerset, Mercer, Monmouth, Ocean)
- Mail: Attn: Construction Inquiry, P.O. Box 710, Newark, NJ 07102
- Phone: 1-800-722-0256, option 1 (Construction Services)
Email is the standard for most contractors. Keep your sent email as your timestamp — PSE&G's response times vary, and having proof of submission date matters when the project is on a deadline.
PSE&G ESI timeline: how long does it take?
This is the question every contractor wants a straight answer to. Here's the honest picture:
| ESI type | Typical timeline | |---|---| | Simple residential upgrade (200A or less) | 5–15 business days for ESI number issuance | | Residential upgrade (over 200A) | 2–4 weeks (may require engineering review) | | Multifamily (2–4 units) | 2–3 weeks | | Multifamily (5+ units) | 3–6 weeks | | New residential service | 3–5 weeks | | Commercial (small, straightforward) | 3–5 weeks | | Commercial (large, engineering review required) | 6–12 weeks | | Temporary construction service | 1–3 weeks |
These are ESI number issuance timelines — the time from submission to PSE&G acknowledging your application and assigning a job number. The actual utility inspection and reconnection scheduling happens separately, after the municipal permit is issued and the work is completed.
Important: PSE&G's queue fluctuates significantly by season. Summer (May–September) is peak load season and applications slow down. Plan accordingly and file early.
The parallel filing strategy
Here's the move that separates contractors who complete jobs on schedule from those who lose weeks:
File the PSE&G ESI application the same day you file the F120 municipal permit application. Never wait for one to approve before filing the other.
Most contractors file the municipal permit first and then start the PSE&G ESI after the permit is issued. That sequential approach adds weeks to every job. The municipal permit and the PSE&G ESI have no dependency on each other — they run on independent tracks and both need to be complete before the job is done.
The parallel approach: 1. Signed contract → immediately prepare both the F120 subcode application and the PSE&G ESI application 2. File both on the same day 3. The municipal permit and the ESI number run simultaneously 4. When both are in hand, schedule the work 5. After rough-in: schedule municipal rough inspection and PSE&G inspection in the same window
On a standard residential upgrade, parallel filing compresses a 5–7 week sequential process into a 3–4 week parallel one. On a multifamily or commercial job, the time savings compound further.
Common reasons PSE&G ESI applications get rejected or stalled
Wrong form used — Residential form submitted for a 5-unit building, or commercial form submitted for a 1-4 family. PSE&G will kick it back.
Missing load calculation — For upgrades above 200A, PSE&G typically requires a load calculation justifying the service size. Many applicants omit this on first submission.
Meter socket location conflict — The proposed meter socket location conflicts with PSE&G's clearance requirements (distance from gas meters, clearance from windows, accessibility). PSE&G will flag this and require a revised location before issuing the ESI number.
Wrong construction contact — Sending to the wrong regional construction inbox (North vs. South) causes delays while PSE&G reroutes internally.
Incomplete contractor info — Missing license number, missing contact name, or contact info that PSE&G can't reach to ask questions. Applications with incomplete contractor data sit in review limbo.
Estimated dates already passed — If your submitted start/completion dates are in the past by the time PSE&G reviews the application, they'll require updated dates. File with realistic future dates.
After the ESI number is issued
Getting an ESI number means PSE&G has your project in their system — it does not mean the utility work is scheduled or approved. After ESI issuance:
1. Complete the electrical work under your F120 permit 2. Schedule the municipal electrical inspection and pass rough and final 3. Call PSE&G Construction Services (1-800-722-0256) to schedule the utility inspection and meter pull/set 4. PSE&G sends a crew to pull the existing meter, inspect the service entrance, and reconnect with the new meter 5. Final connection is made — job complete
The utility inspection and reconnection step is where many jobs sit longer than expected. PSE&G's scheduling for meter pulls runs 3–7 business days out in normal periods, longer in summer. Schedule as early as your inspection sequence allows.
FAQ: PSE&G ESI applications
Q: Can a homeowner file a PSE&G ESI application, or does it have to be the contractor? A: The application should be filed by the licensed electrical contractor performing the work. PSE&G will coordinate with the contractor for scheduling and technical questions. A homeowner can provide the property owner information, but the contractor is the appropriate party to submit and manage the application.
Q: Do I need an ESI for a sub-panel installation? A: Not if the main service entrance, meter, and service size aren't changing. A sub-panel fed from an existing main panel with no changes to the utility side doesn't require an ESI. If you're adding a sub-panel as part of a service upgrade or new service — yes, the ESI is required for the service portion.
Q: Can I start work before the ESI number is issued? A: You can start interior work under your municipal permit. The ESI is specifically required for the utility-side portion — the meter pull, service connection, and reconnection. Practically, starting work before the ESI is issued is common and fine, as long as you're not expecting a meter pull or reconnection before the ESI is processed.
Q: The ESI application asks for an estimated completion date. What if the job runs longer than I estimated? A: Call or email PSE&G Construction Services to update your estimated dates. It's a routine request and they handle it regularly. What you don't want is to have outdated dates in the system when you call to schedule the reconnect — it can cause delays while they update records.
Q: How do I check the status of an ESI application I already filed? A: Call PSE&G Construction Services at 1-800-722-0256, option 1. Have the property address and your contractor license number ready. They can look up the application by address and tell you the current status.
Q: My ESI application was submitted weeks ago and I haven't heard back. What do I do? A: Follow up by phone. PSE&G's email queue can back up, especially in peak season. Call Construction Services with your submission date and the property address. If you have your sent-email confirmation, reference that timestamp.
Q: What's the difference between an ESI number and a PSE&G job number? A: They're typically the same reference. PSE&G may use "ESI" and "job number" interchangeably when referring to your project in their DWMS system. When they issue your ESI, the number they give you is your PSE&G job number for tracking and scheduling purposes.
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Filing PSE&G ESI applications alongside every F120 is one of the most time-sensitive parts of NJ electrical permit work — and it's one of the most common places projects stall. If you're tired of managing the back-and-forth with PSE&G on top of everything else on a job, ClearPath handles ESI applications as part of every permit package. We file the day the contract is signed and ride the process through to the reconnection.