Breinigsville (Upper Macungie Township), Lehigh County, PA
TierPoint Allentown TekPark campus
Why this stage: The township's August 2026 minutes describe the new substation as supporting existing data center operations at 9999 Hamilton Boulevard. For the 100 MW expansion, the Pennsylvania PUC approved PPL's new lines on August 6, 2026, to serve a customer final load of about 100 MW. That expansion power is approved but not yet energized.
- Owner or developer
- TierPoint, which says it bought the 137-acre TekPark campus in October 2025. The air permit is held by Tierpoint Two, LLC.
- TierPoint's role
- Owner and operator
- Link to TierPoint
- “TierPoint clients at TekPark include large, technology service providers that are using advanced cooling solutions in support of artificial intelligence (AI) and other compute-intensive, GPU-accelerated workloads.” TierPoint news release
- Announced capacity
- 100 MW. “100 MW power expansion that it expects to complete in the second half of 2026” TierPoint news release
- Stated timing
- “TierPoint said in March 2026 that the TekPark power expansion is expected to complete in the second half of 2026.” Source
| Date | Record | What it shows | Source |
|---|---|---|---|
| February 2, 2024 | Air permitPennsylvania DEP, Northeast Region Air Quality · Plan Approval 39-00108C | Plan approval for Tierpoint Two, LLC at 9999 Hamilton Blvd to install and operate four diesel emergency generators. These are backup units.Stated capacity: “four (4) diesel-fired emergency generators, 2.5 MW each”Status: Issued | Record |
| May 1, 2026 | Grid or utilityPennsylvania Public Utility Commission · A-2026-3062204, PPL Letter of Notification | PPL describes about 0.5 miles of tap lines to the new TEK Park 138/69-13 kV substation and 0.75 miles of new lines from the Breinigsville substation. Phase 1 in-service is April 2027 and Phase 2 is June 2027. One paragraph cites a customer-requested in-service date of November 2026.Stated capacity: “a second 69 kV electrical service point with an in-service date of April 2027 and a final load of 100 MW”Status: Filed by PPL Electric Utilities. Approved by the August 6, 2026 order. | Record |
| August 6, 2026 | Grid or utilityPennsylvania Public Utility Commission · A-2026-3062204, Order of August 6, 2026 | Approves PPL's new 138/69 kV lines in Upper Macungie Township to connect a new customer-owned TEK Park substation. The order says the project will let PPL serve the customer's final load of about 100 MW. The order does not name TierPoint.Stated capacity: “serve the customer's final load of approximately 100 MW”Status: Approved. No protests were filed. | Record |
| August 6, 2026 | ZoningUpper Macungie Township Board of Supervisors · Resolution 2026-36, Docket 2434 | Approves the TierPoint Substation at 9999 Hamilton Boulevard on part of an existing parking lot within the TierPoint Tech Park campus, to support existing data center operations.Stated capacity: “a 100-megavolt ampere electrical substation”Status: Preliminary/final minor land development plan approved unanimously, with conditions | Record |
Unverified: not found in online records
- No energization record was found for the TEK Park substation or the new PPL lines.
- Timing does not match. TierPoint targets the second half of 2026. PPL lists April 2027 and June 2027 in-service dates.
- The PUC records describe an unnamed existing customer. The link to TierPoint comes from the township minutes and TierPoint's own release.
- The size of the existing data center, about 16 MW, appears only in trade press. No government record states it.
- No record shows how much of the campus load is GPU capacity or which tenants use it.
- The Lehigh County parcel record was not checked to confirm the October 2025 purchase.

