A 250 kW rooftop is not a house package. Reading Pennsylvania solar interconnection for that array is a Level 2 request to Metropolitan Edison. Level 1 is the wrong label, the neighboring utilities are the wrong companies, and a one-line that reads like a 10 kW residence will not carry the filing.
Athol Energy prepares the drawings that go with the request. We do not submit as the interconnection customer, and we do not install the roof. The customer files. The one-line has to say what the request is claiming before that file goes out.
Metropolitan Edison owns this service
Reading is Metropolitan Edison country, part of FirstEnergy. It is not PECO and it is not PPL. A form built for either of those companies is the wrong desk, even when the kilowatts and the inverter are right.
Section 75.32 of 52 Pa. Code Chapter 75 says the interconnection customer submits the request to the electric distribution company that owns the system at the site. The EDC must accept interconnection requests electronically. At this site the EDC is Metropolitan Edison. PECO solar interconnection is a different company. PPL solar interconnection is a different company. Do not send a Reading rooftop down either of those pages and rename the PDF.
Chapter 75 interconnection is the rule that decides the level. The level is not a city tradition. It follows the nameplate, the equipment, and the circuit. A 250 kW nameplate already answers the first question.
Reading Pennsylvania solar interconnection means Level 2
Level 1 review is inverter-based, nameplate 10 kW or less, certified equipment. A 250 kW rooftop is past 10 kW. Calling it Level 1 because the array sits on a roof does not fit the rule. Level 1 stops at that nameplate. This rooftop does not.
Level 2 uses an inverter, a nameplate of 2 MW or less, certified equipment, and a radial circuit or a spot network that serves only one customer. Level 2 is also used if Level 1 was not approved. A 250 kW nameplate is under 2 MW, so the size can fit Level 2. The rest of the test still has to be true, and the one-line has to say so.
Metropolitan Edison needs that Level 2 request to show a certified inverter, radial service, and electronic filing. Write them on the drawing. Do not leave them in a cover email the reviewer may never attach to the sheet.
What the one-line has to say
State Level 2 on the one-line. Identify the inverter and state that the equipment is certified. Show the service as radial. A 250 kW nameplate on a sheet titled like a residence, with no level and no word about the circuit, is how a Level 2 job gets processed as the wrong review.
If the site were a spot network that serves only one customer, that is the other Level 2 path in the rule. The Reading rooftop this page is drawing is the radial case. Say radial on the one-line. Do not write a generic service label and hope the level is obvious from the kilowatts alone. Kilowatts pick the ceiling. The circuit type picks whether Level 2 actually applies.
- Nameplate 250 kW, which is over the 10 kW Level 1 line and under the 2 MW Level 2 line.
- Inverter shown, and the equipment identified as certified.
- Service shown as radial.
- Level 2 written on the one-line, matching the request.
- Metropolitan Edison named as the EDC.
Before the PDF is released, read the one-line the way a Metropolitan Edison reviewer will. The sheet should say Level 2. The inverter line should say the equipment is certified. The service note should say radial. The nameplate should read 250 kW, not a leftover residential figure from a copied title block. If one of those lines is missing, the electronic request will not match the drawing the customer is about to submit.
File the EDC's electronic interconnection request
Submit the request electronically because Section 75.32 says the EDC must accept interconnection requests that way. Call it the EDC's electronic interconnection request.
The interconnection customer is the one who submits. Athol's piece is the one-line and the plan sheets that agree with it. Interconnection drawings should use the same inverter, the same 250 kW nameplate, the same radial service, and the same Level 2 label as the electronic request. If the electronic request and the PDF disagree, fix the PDF before the customer hits submit. There is no second one-line.
Level 3 and Level 4 are different requests
Level 3 is a nameplate of 2 MW or less that does not qualify for Level 1 or Level 2, or that failed those reviews. If the equipment is not certified, do not force a Level 2 label. If the circuit is not radial and it is not a spot network that serves only one customer, Level 2 is the wrong box. Say what is true and let the level follow. A failed Level 2 review does not stay Level 2 on the next sheet. It moves to the review the rule actually assigns.
Level 4 is narrower. A non-exporting project that does not qualify for Level 1 or Level 2 may ask for Level 4, which can be a shorter review. A 250 kW rooftop drawn as a Level 2 radial project is not a Level 4 filing. Do not relabel it Level 4 because someone wants a shorter path. Level 4 is for a non-exporting project that already sits outside Level 1 and Level 2.
Keep the one-line honest. Certified inverter, radial service, 250 kW, Level 2, Metropolitan Edison. If any one of those statements is false, change the level before you change the title block to look faster.
Commercial sheets, not a house template
A 250 kW rooftop needs a commercial plan set. The one-line is the sheet that states Level 2, the certified inverter, and the radial service. The roof plan shows the array that produces that nameplate. Equipment on the roof and equipment on the one-line are the same list.
Commercial utility solar plan sets are built for this scale. The commercial sheets cover the roof and the interconnection one-line together. Pennsylvania solar design keeps the Chapter 75 level on the drawing instead of treating it as a form the office manager fills in later.
Do not start from a residential Level 1 title block and paste 250 kW over a 10 kW note. The leftover house language is how the wrong level survives into the electronic request. Build the sheet as Level 2 from the first draft. Name Metropolitan Edison. State the certified inverter. State the radial service. Then the customer can submit the EDC's electronic interconnection request with a one-line that says the same thing.