Rules for Electric Meter & Service Installations (REMSI)

Table of contents
Announcements
Please be advised
Resources

1. Introduction in Reference to Tariff
2. Notice - Theft of Service
3. Foreign Load
4. Applying for Electric Service     
5. Map of PPL Service Area
6. Suggested Safe Practices
7. Definitions/Terms/Acronyms (pdf)
8. List of Rules 1 through 34 (updated 06/20/2024)
9. Approved Metering and Equipment Tables Index
   • Meter Service Devices
   • Instrument Transformer Cabinets
   • Switchgear Metering and Termination Compartments (updated 05/13/2020)
   • Pad Mounted Metering and Service Termination Cabinet (pdf)
   • Automatic Transfer Switches - Open Transition (pdf)
   • Automatic Transfer Switches - Closed Transition (pdf)
   • DER Management Device Installation
   • Meter Collar Devices - Customer Owned (updated 09/10/2024)
   • Service Conduits (pdf)
   • Slip Risers (pdf)
   • Connectors (pdf)
   • Smart Inverters and DER Pilot Management Requirements (updated 04/16/2025)
   • Volt/VAR Curve & Ride-through Settings Guidelines - Technical Document (pdf)
   • 12kV Customer Main Switches (pdf)
10. Master Sketch Table     
11. Customer Reference Specifications
12. Utility Reference Specifications
13. Complete List of Changes Note: Revision information for Sketches and Customer Reference Specifications (CRS)
14. Letters to REMSI Users
15. Electrical Inspections

Transformer loading

PPL Electric Utilities has set new thresholds on utility-owned secondary transformer sizing for new applications received on or after 8/23/2024. Click here for more details.

DER Customer Billing for Systems 250kW and Greater

Applications received on or after January 1, 2024, will be required to remit a non‐refundable deposit of 25% of the estimated system upgrade costs as communicated by PPL Electric in an Interconnection Impact Review (IIR) report, according to the timeframes communicated in that IIR if applicable. Upon completion of detailed engineering, the remaining project balance must be paid in full prior to the start of construction. After construction, there will be a true-up. If the customer underpaid, they would owe the remaining balance. If the customer overpaid, they would receive a refund for the difference.

Applications received before January 1, 2024, will be required to pay all estimated system upgrade costs prior to the start of construction as communicated by PPL Electric in an Interconnection Impact Review (IIR) report, according to the timeframes communicated in that IIR if applicable. After construction, there will be a true-up. Therefore, if the customer underpaid, they would owe a remaining balance. If the customer overpaid, they would receive a refund for the difference.

Aligning with common industry practice, PPL has revised its Point of Contact (POC) document to a Point of Common Coupling (PCC) requirements document. Changes: Point of Common Coupling Recloser (PCC) is required for all primary and secondary customers installing DER ≥500kW. Effective: 9/1/2023 Learn more here.

A new DER Interconnection Pre-Application process has been rolled out. The optional DER Pre-Application is intended for large interconnection projects (>= 500 kW nameplate) and provides information including estimated timeline and costs based on load projections and the system configuration as of the date of the request. Learn more here.

Per our Tariff Rule 12, inverter-based DER applications received on or after January 1, 2023 must use inverters that have been certified to UL 1741 Supplement B (SB). Please see our Approved Inverter List to view models that have been verified by PPL to meet this new requirement.

• Only electricians authorized to participate in PPL EU's Fast Track Program may alter PPL EU meter seals and make permanent connections at the customer's point-of-contact with PPL EU's distribution system. See Rule 1, J and K.
• INSPECTORS: Please help PPL EU prevent unauthorized alteration of our facilities by enforcing these provisions of REMSI.
• It has been brought to PPL Electric Utilities' (PPL EU) attention that when an inspection is failed, a second inspector is being brought in for re-inspection. This does not follow PPL EU's guidelines for multiple inspections.

Please see the Electrical Inspections section for more information.