# Glenwood Landing

NYISO asset profile · https://askthegrid.com/assets/facilities/glenwood-landing

National Grid Generation LLC - Nassau County - NYISO

Glenwood Landing (EIA plant 7869) is a 106 MW natural-gas and distillate-oil fired combustion-turbine generation facility located at 400 Shore Road, Glenwood Landing, Nassau County, New York. The two LM6000 natural-gas turbines are equipped with selective catalytic reduction and water/steam injection for NOx control. Annual generation in 2024 was 129.2 GWh with fuel mix of 84.2% natural gas and 15.8% distillate fuel oil. National Grid decommissioned the broader Glenwood Landing generating site between 2011 and June 2015 under an approved plan managed by TRC Companies; however, the two LM6000 units continued operating or remained available for dispatch, with resources running continuously for approximately 168 hours in March 2026.

## Metrics

- **Nameplate capacity:** 106 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 7869 — plant-7869

## Facts

- **Technology:** Natural Gas Fired Combustion Turbine
- **Operator:** National Grid Generation LLC

## Related parties

- **Parent company:** National Grid USA — Parent company of National Grid Generation LLC
- **Parent company:** National Grid plc — Ultimate parent company via KeySpan merger
- **Former owner:** Long Island Lighting Company — Predecessor owner prior to 1998 transfer to National Grid Generation
- **Former owner:** KeySpan Corporation — Owner via Glenwood Energy Center subsidiary until 2007 merger
- **Construction contractor:** TRC Companies — Owner's engineer and decommissioning contractor ([source](https://www.trccompanies.com/projects/national-grid-glenwood-landing-ny-re-power-project/))
- **Regulator:** Federal Energy Regulatory Commission — Federal regulator and market authority ([source](https://mbrweb.ferc.gov/SearchlkpEIA/Index?page=259))
- **Regulator:** New York State Division of Environmental Conservation — Air quality regulator and permit authority
- **Equipment supplier:** GE Vernova — Manufacturer of LM6000 turbines ([source](https://www.gevernova.com/gas-power/products/gas-turbines/lm6000))

## Sources

- [documents.dps.ny.gov](https://documents.dps.ny.gov/public/Common/ViewDoc.aspx?DocRefId=%7B00E5D295-0000-C027-BB1B-ED1813C57F4C%7D) — documents.dps.ny.gov · authoritative — Source retained for exact-record publication review.
- [extapps.dec.ny.gov](https://extapps.dec.ny.gov/data/dar/afs/permits/prr_128240214600003_r3.pdf) — extapps.dec.ny.gov · authoritative — Source retained for exact-record publication review.
- [mbrweb.ferc.gov](https://mbrweb.ferc.gov/SearchlkpEIA/Index?page=259) — mbrweb.ferc.gov · authoritative — Source retained for exact-record publication review.
- [ethree.com](https://www.ethree.com/wp-content/uploads/2019/08/E3_The_Potential_for_Energy_Storage_to_Repower_or_Replace_Peaking_Units_in_New_York_State_July_2019.pdf) — ethree.com · public_source — Source retained for exact-record publication review.
- [gevernova.com](https://www.gevernova.com/gas-power/products/gas-turbines/lm6000) — gevernova.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/glenwood-landing
Website: [National Grid Generation LLC](https://nationalgrid.com/national-grid-ventures/what-we-do/conventional-generation)

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