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247.3 MW Hydro operating in Lancaster, PA — PJM Interconnection, LLC
247.3 MW
Nameplate Capacity
14
Generators
units
Conventional Hydroelectric
Technology
1910
Operating Since
Coordinates
39.8272, -76.3318
County
Lancaster, PA
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | BIF III Holtwood LLC | Brookfield Renewable Partners LP | — |
| Owner(s) | BIF III Holtwood LLC | Brookfield Renewable Partners LP | — |
| Status | Operating | operating | — |
GEM identifies the owner as Brookfield Renewable Partners LP
This entity is not yet in the GEM ownership database — chain unavailable.
Holtwood Dam is the oldest of three major dams built across the lower Susquehanna River, and the middle location of the three. It was constructed as the McCalls Ferry Dam between 1905 and 1910 by the Pennsylvania Water & Power (PW&P) Company. The dam was renamed Holtwood in honor of two company executives. PW&P merged with Pennsylvania Power & Light (PPL) in 1955. In 2015 Talen Energy took over PPL's generation and immediately sold the Holtwood plant to Brookfield Renewable Energy Partners to comply with federal antitrust requirements.
Read more on WikipediaHoltwood is a hydroelectric power plant located in Lancaster County, Pennsylvania. The plant has a total capacity of 247.3 MW across 14 generators, and it began operating in 1910. The primary fuel source is water (WAT), and the plant utilizes conventional hydroelectric technology. BIF III Holtwood LLC is the owner and operator of the facility.
In terms of grid context, Holtwood operates within the PJM Interconnection, LLC balancing authority and the RFC NERC region. The plant's latest annual generation was 866,073 MWh, resulting in a capacity factor of 39.8%. Holtwood is ranked as the 4th largest hydroelectric plant out of 4 in Pennsylvania, and it holds a national ranking of 82 out of 194 hydroelectric plants. Recent news articles pertaining to the plant primarily concern deals.
Generated from EIA, GEM, and public data sources
ISO/RTO
PJM
Market
ISO/RTO Member
NERC Region
RFC
Balancing Authority
88.3K MWh
Latest Month
866.1K MWh
Annual Generation
39.8%
Capacity Factor
2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $567.4M
Point of Interconnection
Nearest Substation
Face Rock Substation · 115 kV
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
PJM
LMP Node
123901483
Pricing Hub
WESTERN HUB
Node Source
EIA-860 direct report
Last updated 2026-03-26
View all articlesNo ask pi reports yet for this entity.
ask pi about HoltwoodPJM Interconnection, LLC (PJM)
Grid Voltage
69.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP