PSE&G vs JCP&L Commercial Solar Interconnection: NJ Engineering Guide

New Jersey commercial solar engineering is utility-specific. PSE&G interconnection runs differently from JCP&L, which runs differently from Atlantic City Electric. Pre-engineering against the wrong utility’s procedures adds 4 to 8 weeks of delay. Here’s what NJ commercial property owners and engineering managers need to know about the two largest utility territories in the state.

PSE&G (Public Service Enterprise Group)

PSE&G is New Jersey’s largest electric utility, serving most of central and northern NJ plus parts of South Jersey. For commercial solar interconnection, PSE&G uses a structured Level 1 / Level 2 / supplemental review framework.

• Level 1: Systems up to 25 kW with standard certified equipment. Simplified review, 4-8 weeks typical.
• Level 2: Most commercial systems (25 kW to 2 MW). Standard application review. 8 to 14 weeks typical timeline.
• Supplemental review: Often triggered for Level 2 systems above 50 kW. Adds 2-4 weeks for distribution capacity study.
• Level 3: Systems above 2 MW. Full system impact study. Timelines vary, often 16-24 weeks.

PSE&G is generally considered the most predictable NJ utility for commercial solar interconnection. The queue management is strong and the review staff has high commercial solar volume. Documentation requirements are detailed but well-defined.

JCP&L (Jersey Central Power & Light, FirstEnergy subsidiary)

JCP&L serves central NJ, Ocean and Monmouth counties, and parts of Morris and other counties. For commercial solar, JCP&L’s review process is similar to PSE&G but with different timing and scheduling characteristics.

• Level 2 commercial timeline: 10 to 16 weeks typical (slightly longer than PSE&G)
• Witness test scheduling bottleneck: The longest delay is usually the witness test scheduling window — typically 4 to 6 weeks after engineering review completion. Plan around this.
• Supplemental review: Triggered similarly to PSE&G for systems impacting distribution capacity.

JCP&L’s review staff is competent but has lower commercial solar volume than PSE&G, which means less standardization. Application packages need to be detailed and complete to avoid revision cycles.

Where the Territories Split

The split between PSE&G and JCP&L is geographic and not always intuitive. Some NJ townships have both utilities serving different sections. Edison is a good example — most of Edison is PSE&G but southeast portions fall under JCP&L. We verify utility at the project address before engineering, never as an assumption.

Why Utility-Specific Engineering Matters

An interconnection application designed for PSE&G but submitted to JCP&L (or vice versa) will come back for revisions. Each revision cycle adds 2-4 weeks to total project timeline. For a 5-month commercial solar project, two revision cycles can blow your placed-in-service date past a tax-year deadline.

Specific differences we account for:

• Application form versions and required attachments
• Distribution-level interconnection point requirements
• Witness test scheduling lead times
• Revenue meter specifications
• Anti-islanding certification requirements
• Disconnect placement and labeling standards

Sample 250 kW PSE&G Interconnection Timeline

Total: 18-22 weeks from interconnection submission to PTO. With careful sequencing, construction can begin around week 12.

For NJ commercial property owners planning solar projects, knowing your utility is the first engineering question. Our Commercial Solar Engineering & Design service builds applications calibrated to your specific utility from day 1.