Every service change, service upgrade, and new service in PSE&G territory needs an ESI application — Electric Service Installation. The form lives on PSE&G's Contractor Portal, looks deceptively simple, and is where a huge percentage of NJ service jobs get stuck for weeks.
If you're an electrical contractor in PSE&G territory — which covers most of northern and central New Jersey — this is required reading. Get the ESI right and your job moves. Get it wrong and you're looking at a 2-4 week revision loop while the homeowner sits without power or with an inadequate service.
What the ESI application is
The ESI application tells PSE&G three things:
1. What service you're installing — size, voltage, phase, overhead or underground 2. Where it's going — property address, point of attachment, meter location 3. Who is doing the work — your license info, the installing electrician, the customer of record
PSE&G reviews it, approves (or kicks back) the service size, coordinates any transformer or line work on their side, and issues a job number. That job number is what you reference for every subsequent interaction — scheduling the cut-in, the final service connection, the meter exchange.
No ESI approval means no PSE&G involvement. No PSE&G involvement means your service-change job is dead in the water regardless of what the municipality says.
The documents PSE&G wants
Before you start the application, have all of these ready:
- Signed contract with the customer
- NJ electrical contractor license (current, with expiration date)
- Load calculation — this is the piece most contractors rush and most reviewers reject
- One-line diagram of the new service
- Meter spec sheet if you're installing anything non-standard
- Panel spec sheet for the new main distribution panel
- Site plan or property survey showing proposed meter/service location
- Photos of the existing service (for replacements) — meter, masthead, point of attachment
If you're missing any of these, don't start the application. Get them first.
The load calculation is where filings die
PSE&G's reviewers look at the load calculation first. If it doesn't work, nothing else matters.
A compliant load calc has to:
- Show every load in the dwelling — lighting, receptacles, HVAC, ranges, dryers, water heaters, EV chargers, pool equipment, hot tubs, anything over 1500W
- Use the correct demand factors per NEC Article 220
- Arrive at a total connected load and a total calculated demand — these are different numbers and both matter
- Match the service size you're requesting
The single most common reason ESI applications get rejected: contractor requests a 200A service, but the calculated demand comes out to 215A. PSE&G kicks it back and you either need to re-do the calc to find 15A of reducible load or re-submit for a larger service.
A few specific gotchas:
- EV chargers count at 100% continuous load unless you're using NEC's energy management provisions — which most residential jobs aren't
- Electric ranges and cooktops have specific demand factors in NEC Table 220.55 — don't use nameplate
- Heat pumps and mini-splits count the larger of heating or cooling load, not both
- Future loads (customer says "I might add a pool") don't count unless they're in the actual scope
Common application mistakes (and how to avoid them)
After filing a few hundred ESIs, we see the same mistakes constantly.
Mismatched meter type
PSE&G requires specific meter sockets for specific service sizes. A 200A service in PSE&G territory is not the same meter as a 200A service in JCP&L territory — and the sockets aren't interchangeable. Check the PSE&G meter socket specification document before you order equipment. We keep a copy of it pinned to our Drive for every active NJ job.
Wrong point of attachment
The point of attachment (POA) is where the service drop connects to the building. PSE&G has specific rules on POA height, clearance from windows, clearance from gas meters, and distance from the property line. A POA that's been fine for 40 years on the existing service will sometimes fail new-service specs. Check the POA against the current standard before you commit to a meter location.
Overhead vs. underground mismatch
If the existing service is overhead and the homeowner wants to go underground, that's a separate PSE&G application for the underground conversion — it's not just changing a dropdown on the ESI form. Underground conversions add 2-4 weeks minimum and sometimes require civil work the customer isn't expecting.
Missing or stale contractor license info
If your license is within 90 days of expiration, PSE&G's system will sometimes flag the application. If it expires during the approval window, your application goes into limbo until you upload renewed credentials.
Listing the homeowner as the customer of record when they're not
The ESI customer of record is the person PSE&G will bill. For a buyer who hasn't closed yet, this is often the seller. For a tenant improvement, it may be the landlord. Get this right upfront — changing the customer of record mid-application resets the clock.
The PSE&G timeline (what to actually expect)
Assuming a clean application:
- Same day to 3 business days — PSE&G acknowledges receipt, assigns a job number
- 5-10 business days — Initial review, questions (if any) come back
- 2-4 weeks — If a transformer upgrade or line work is required on PSE&G's side
- 1-2 weeks after permit approval — Scheduling the cut-in and meter exchange
The wildcard is anything involving PSE&G line work. Replacing a transformer, running a new underground service, or adding a new drop to a previously un-served property can easily stretch to 6-10 weeks. On those, budget generously and communicate with the homeowner early.
Running ESI and municipal permit in parallel
The single biggest time-saver on a service change is submitting the PSE&G ESI and the municipal electrical permit the same day. Waiting for one to approve before starting the other is a common rookie mistake — it adds 2-3 weeks for no reason.
The one caveat: use the same load calculation on both applications. Reviewers on both sides will check. If the numbers don't match, you'll get questioned — and usually the municipal reviewer will side with the more restrictive calc, which is almost always PSE&G's.
When to use an expediter
For a first-time ESI filing, or for anything more complex than a straight 200A like-for-like replacement, an expediter who files these every week is worth the fee. We charge a flat rate for PSE&G ESI filings and coordination — no hourly — and we handle the revision loop on your behalf.
More importantly, we have direct lines into the PSE&G Contractor Support team for escalations. On a stalled ESI where the customer is going without power, that matters.
Send us the scope and we'll tell you whether you should file it yourself or hand it over.