# Joseph J Seymour Power Project

NYISO power_plant · https://askthegrid.com/nyiso/assets/plant/joseph-j-seymour-power-project

The Joseph J Seymour Power Project is a 94 MW natural-gas-fired combustion-turbine power plant located at 730 Third Avenue at 23rd Street, Brooklyn, Kings County, New York. The facility serves as a peaking resource supporting locational capacity, system capacity, operating reserves, and local reliability services including voltage support. Annual generation is approximately 104.2 GWh.

## Key facts

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

## Grid and market context

- ISO/RTO: NYISO
- Balancing authority: NYISO

## Timeline

- 2015-11-18 — NYSDEC Permit Review Report Renewal
  NYSDEC issued Permit Review Report renewal 2 for the exact facility. The report identifies NYPA as owner and describes two GE LM6000 simple-cycle combustion turbines firing natural gas, together with two gas-fired inlet-air-heating boilers (Heatec, 7.4 mmBtu/hr each) and a diesel backup generator (746 bhp).
  Source: extapps.dec.ny.gov (https://extapps.dec.ny.gov/data/dar/afs/permits/prr_261020048200006_r2.pdf)
- 2021 — Gowanus Repowering Proposal Withdrawn
  A 2024 clean-energy presentation reports that the Gowanus repowering proposal associated with the NYPA Joseph J. Seymour peaker was withdrawn in 2021. The available evidence does not show that repowering was constructed or that the existing turbines were retired.
  Source: cleanegroup.org (https://www.cleanegroup.org/wp-content/uploads/peak-coalition-webinar-2-6-24-slides.pdf)

## Sources

- [extapps.dec.ny.gov](https://extapps.dec.ny.gov/data/dar/afs/permits/prr_261020048200006_r1_1.pdf) — extapps.dec.ny.gov · tier authoritative
- [extapps.dec.ny.gov](https://extapps.dec.ny.gov/data/dar/afs/permits/prr_261020048200006_r2.pdf) — extapps.dec.ny.gov · tier authoritative
- [cleanegroup.org](https://www.cleanegroup.org/wp-content/uploads/peak-coalition-webinar-2-6-24-slides.pdf) — cleanegroup.org · tier public_source

## Data quality

- The exact plant is consistently identified as EIA plant 7910 / Joseph J Seymour Power Project, rather than the nearby NYPA Vernon Boulevard, Harlem River Yard, Kent/North 1st Street, or Pouch facilities. The strongest technical and ownership evidence is the 2015 NYSDEC permit review, which identifies NYPA as owner and the facility as two GE LM6000 turbines firing natural gas. The 2001 construction and service history is supported by a government power-plant inventory and contemporaneous EPA applicability determination confirming ORISPL 7910 service entry in July–August 2001. A 2023 NYSDEC notice concerns installation of a 35-linear-foot replacement bulkhead, not a generation expansion, repowering, or change of ownership. No confirmed retirement or completed repowering event was identified. A 2024 presentation reports that a Gowanus repowering proposal was withdrawn in 2021; this is treated as a proposal-status event, not as completed repowering. No project-specific acquisition price, sale consideration, portfolio transaction value, construction loan, project-finance debt, tax-equity financing, or refinancing was identified in the available sources. NYPA states generally that it finances operations through bond sales and electricity revenues, but the evidence does not allocate any bond issue or amount to this facility.

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