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West Penn

Pennsylvania Utility Interconnection & net metering rules
Net Metering Allowed1
NEM TypeMonthly
Line Taps Allowed1
Load Taps Allowed0

Net metering & export

Net Metering Allowed
1
NEM Type
Monthly
Post Solar Billing Method
Net Metering
Net Excess Generation Notes

Excess energy received from the customer is credited to the customer's account at the applicable generation component of the customer's rate schedule.

Rebates Offered
1
Deregulated
1
Allows Standby
1

Interconnection & taps

Approval Req To Install
Yes
Interconnection Level
3
Line Taps Allowed
1
Load Taps Allowed
0
Tap Criteria

No Taps allowed in Meter Can.

Meter Can cannot be used as a raceway


Disconnect must be rated as a service disconnect when tapping.

(PG 11 SLD W LST https://firstenergycorp.com/content/dam/feconnect/files/retail/Customer-Interconnection-Guide-Single-Phase.pdf )

Automatic Transformer Upgrade Size
0
Meter Aggregation Allowed
1

System size & offset

System Size Restrictions
0
System Size Restriction Type
No Restrictions
System Size Battery Included
0
System Size Includes Existing Systems
0
Offset Type
No Restrictions
Offset Value
0
Offset Calculation Period
0
Industry Standard Watts Sqft
2
System Offset Notes

100% of the xfmr rating. Above that the transformer will need to be upgraded at the customer’s expense

Metering & disconnect

Production Meter Required
No
Production Meter Position
N/A
Production Meter Labeling
N/A
Allowed Meter Adapter
None

Plans & docs

Site Plan Reqs

Overall property layout and street access including North arrow orientation and the nearest cross street in each direction. (Indicate direction of nearest cross street if impractical to show on drawing).

Ground mounted installations must show clearances and details of surrounding structures especially how they cross the Company's facilities. The route and length of the electrical connection to the premise is also required.

Location of the DER AC disconnect meeting the requirements of the NEC - for self-contained metering locations.

Location of the DER utility required AC visible break disconnect - for metering locations utilizing instrument transformers.

Location of generation, inverter, storage and associated electrical equipment.

Location of service transformer.

SLD Reqs

ALL Jobs

Please indicate DC and AC ratings as appropriate.

Please indicate AC rating of the inverter.

Identify the make and model of the disconnect switch and note if it is lockable with a visible break when required.

Identify connection to Customer’s electrical system.

Identify utility meter, inverter and/or associated generation and storage (battery) equipment.

PV - INV - AC DISCO - PV BREAKER - MSP


No attachments by the customer or the customer’s agent are permitted to Company-owned meters, meter circuits, or ancillary meter devices.

  • Any adapter placed between the revenue meter and meter socket.
  • Attachments or connections to the potential or current circuits of transformer-rated revenue meters.
  • Any connection inside the meter socket.

BATTERY

AC Disco required to Isolate Battery

Electric Service Reqs

The Customer DER shall be UL 1741 / UL1741SA certified as a “Grid Support Interactive Inverter”, or a “Grid Support Utility Interactive Inverter” utilizing IEEE 1547- 2003, or IEEE 1547a-2014 compliant settings with all grid support functions disabled

Install Reqs

DER installed at a single phase electric service location utilizing a self-contained company meter (usually 400A service size, or less), shall have a disconnect switch meeting the requirements of the NEC between the Company meter and the DER PoC. The switch shall be clearly marked, "Generator Disconnect Switch”, with permanent 3/8 inch or larger letters. The preferred location of the switch is outside the building in the immediate vicinity of the electric meter to facilitate access by Company personnel.

Rate Schedule Link
link
Website
link
Phone
(800) 720-3600

Other details

Restrict Inspection
0
Address ID
189400
Express Planset Eligible
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with West Penn before you rely on this. The useful move: if an installer says you need a main panel upgrade, ask how these tap and interconnection policies were considered first.