The customer's bill says Met-Ed. The utility's legal name says FirstEnergy Pennsylvania. The interconnection application asks for one of them, the permit asks for neither, and the one-line has to describe a system that all three documents agree on. That is most of what slows down a York Pennsylvania solar interconnection that should have been simple.
Since January 1, 2024, Met-Ed, Penelec, Penn Power, and West Penn Power have operated as one company, FirstEnergy Pennsylvania Electric Company. The legacy names survive as rate districts. York homes and businesses are in the Met-Ed district. The paperwork has to be written for how the company actually works now.
York Pennsylvania solar interconnection under Chapter 75
Pennsylvania interconnection for net-metered systems follows the Public Utility Commission rules in Chapter 75 of Title 52 of the Pennsylvania Code. We covered the levels in the post on Pennsylvania Chapter 75 interconnection. For most York homes the relevant path is Level 1, which is for certified inverter-based systems of 25 kW or less.
Pennsylvania's net metering limits come from the Alternative Energy Portfolio Standards Act. A residential system can be net metered up to 50 kW. A nonresidential system can go up to 3 MW, and up to 5 MW for systems that make themselves available to the grid in emergencies or that support a microgrid. The Pennsylvania net metering and SREC guide has the details.
Names and numbers that have to match
Most York returns we see are not technical. They are clerical errors that make the reviewer stop and ask. Check these before the application goes in:
- Customer name and service address. Exactly as they appear on the Met-Ed district bill, including the unit number on a rowhouse or duplex.
- Account and meter number. From the current bill. An old bill from before a meter swap is a different meter.
- Inverter model and quantity. Matching the cut sheet in the permit set and the certification the Level 1 path relies on.
- AC size. The inverter output that the application states, written the same way on the one-line.
- Point of connection. Load-side breaker, line-side tap, or a new service. Pick one and draw that one.
The utility reviewer is comparing the form against the drawing. If the drawing says 7.6 kW AC and the form says 7.7 kW, the application waits for an answer to a question nobody meant to ask.
The one-line for an older York service
A lot of York's housing stock is older rowhomes and twins with small services. The busbar question shows up early. If the main panel cannot take a backfed breaker under the 120 percent rule, the options are a main breaker derate, a supply-side connection, or a panel upgrade. Each one draws differently and each one has to be the same option on the application.
Athol Energy prepares the interconnection drawings and permit sets that installers submit. We do not install the system or pull the permit. We do write the busbar calculation on the sheet so the reviewer can see it, and we label the point of connection with the same words the application uses.
The permit side is local. Pennsylvania's Uniform Construction Code is administered by the municipality or a third-party agency it chooses, so York City and the surrounding townships do not all handle plans the same way. Ask who the code official is before you upload. The post on the Harrisburg solar permit design covers a similar set of plan comments a short drive north.
Same company, different districts
An installer working York, Reading, and Altoona in the same month is filing with one company across three legacy districts. The forms can look the same. The account details will not. Keep a district column in your job tracker. It prevents a Met-Ed account number from ending up on a Penelec job. Our earlier post on Reading Pennsylvania solar interconnection covers Level 2 review in the same district.
Questions about York solar interconnection
Is Met-Ed still a separate utility?
No. Since January 1, 2024, Met-Ed has been part of FirstEnergy Pennsylvania Electric Company. Met-Ed continues as a rate district name, and York is in that district.
What is the residential net metering limit in Pennsylvania?
Residential systems can be net metered up to 50 kW. Nonresidential systems can go up to 3 MW, or up to 5 MW for systems available to the grid in emergencies or supporting a microgrid.
Which interconnection level does a typical York home use?
Most residential systems qualify for Level 1 review under Chapter 75, which covers certified inverter-based systems of 25 kW or less.
If your York applications keep coming back with a question about a name or a number, send the next one to us before it goes in. Pennsylvania solar design from Athol Energy lines up the form, the one-line, and the permit set. Contact us.