# Harlem River Yard

NYISO power_plant · https://askthegrid.com/nyiso/assets/plant/harlem-river-yard

Harlem River Yard is an operating regulated electric utility power plant located in the Bronx, owned and operated by the New York Power Authority. The facility consists of two General Electric LM6000 simple-cycle, natural-gas-fired combustion turbines (generators HR01 and HR02), with a combined nameplate capacity of 94 MW. The turbines employ selective catalytic reduction and catalytic oxidation for emissions control. The facility is interconnected to the Consolidated Edison in-city transmission system at 138 kV.

## Key facts

- Technology: Natural Gas Fired Combustion Turbine
- Power capacity: 94 MW

## Grid and market context

- ISO/RTO: NYISO
- Balancing authority: NYISO

## Source-backed facts

- Technical.unit count: 2 count — epa.gov · confidence: review_required
- Technical.power mw: 94 MW — epa.gov · confidence: review_required
- Technical.commercial operation date: July 2001 — epa.gov · confidence: review_required
- Operations.grid role: Peaking generation — bceq.org · confidence: review_required
- Adjacent project.capacity mw: 79.9 MW — nyiso.com · confidence: review_required
- Adjacent project.developer: 174 Power Global (subsidiary of Hanwha Energy USA Holdings Corporation) — nyserda.ny.gov · confidence: review_required
- Adjacent project.proposed in service date: December 31, 2029 — nyserda.ny.gov · confidence: review_required

## Timeline

- 2001-07-25 — EPA Acid Rain Applicability Determination
  EPA Acid Rain Program determination letter identifying Harlem River Yard (ORISPL 7914) units 1 and 2 as two identical simple combustion turbines, each a 47 MW General Electric LM6000 unit burning pipeline natural gas, commencing commercial operation between July 25 and August 17, 2001.
  Source: epa.gov (https://www.epa.gov/sites/default/files/2015-06/documents/new_york_power_authority.pdf)
- Undated — Port Morris Energy Storage Project Proposal
  NYISO identified Port Morris Energy Storage (C24-081) as a proposed energy storage project at the Harlem River Yards site that would involve retirement of existing Harlem River GT1 and GT2 (PTIDs 24160 and 24161, corresponding to generators HR01 and HR02) and installation of a battery energy-storage system.
  Source: nyiso.com (https://www.nyiso.com/documents/20142/57510547/03b_C24_PreliminaryDIS_Report_TPAS_OC_clean.pdf/c202c0e1-c2df-63dd-9401-57fb71c9e814)

## Sources

- [bceq.org](https://bceq.org/2023/06/19/frequently-asked-questions-on-the-title-v-air-quality-permit-for-the-harlem-river-yards-peaker-power-plant) — bceq.org · tier public_source
- [epa.gov](https://www.epa.gov/sites/default/files/2015-06/documents/new_york_power_authority.pdf) — epa.gov · tier authoritative
- [nyiso.com](https://www.nyiso.com/documents/20142/57510547/03b_C24_PreliminaryDIS_Report_TPAS_OC_clean.pdf/c202c0e1-c2df-63dd-9401-57fb71c9e814) — nyiso.com · tier authoritative
- [nyserda.ny.gov](https://www.nyserda.ny.gov/-/media/Project/Nyserda/Files/Programs/Energy-Storage/Bulk-Storage-Incentives/Harlem-River-Yard_Att_B_Public_Project_Summary.pdf) — nyserda.ny.gov · tier authoritative

## Data quality

- The exact plant is distinguished by EIA plant ID 7914 and ORISPL 7914, with generators HR01 and HR02 identified in NYISO and EIA records. This plant should not be merged with the adjacent Hell Gate facility (ORISPL 7913) or other nearby NYPA gas stations. Two capacity figures apply to the same plant for different regulatory purposes: 94 MW is the combined nameplate capacity of the two 47 MW generators (HR01 and HR02) per EPA and EIA records. The 79.9 MW figure is the facility-wide permitted maximum output per the December 2022 NYSDEC air permit. Both are accurate within their respective scopes. The 2022 NYSDEC permit renewal described the existing Harlem River Yards facility and its two GE LM6000 turbines, and explicitly stated that no new emission sources or modifications to existing emission units were proposed. This means no plant modifications, upgrades, or retirements were implemented as part of that renewal process. A separate proposed energy storage project (NYISO C24-081, Port Morris Energy Storage) is planned at the Harlem River Yards site with a proposed in-service date of December 31, 2029. As of the available records, this is a future planned project and no retirement of the existing Harlem River Yard generators has yet occurred. The facility was installed and owned by NYPA from inception (July 2001) and continues to be owned and operated by NYPA. No acquisition, prior ownership, or later sale or transfer of the plant or any interest in it is documented in the available sources.
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Canonical page: https://askthegrid.com/nyiso/assets/plant/harlem-river-yard

Source: Ask the Grid — https://askthegrid.com/