# E F Barrett

NYISO power_plant · https://askthegrid.com/nyiso/assets/plant/e-f-barrett

E F Barrett is an operating, dual-fuel electric generating plant located in Island Park, Hempstead, Nassau County, New York. The exact EIA plant (ID 2511) comprises 13 generators with approximately 669.2 MW of nameplate capacity: two 188 MW natural-gas steam turbines placed in service in 1956 and 1963, and eleven combustion turbines including seven 18 MW simple-cycle units installed in 1970 and four 41.8 MW aero-derivative units installed in 1971. The plant is equipped to operate on natural gas (95.9% of fuel mix) and residual or distillate fuel oil (3.6%) as backup.

## Key facts

- Technology: Natural Gas Steam Turbine, Natural Gas Fired Combustion Turbine
- Power capacity: 669.2 MW

## Grid and market context

- ISO/RTO: NYISO
- Balancing authority: NYISO

## Timeline

- 2012-10-12 — LIPA-National Grid power-supply framework
  Amended and Restated Power Supply Agreement between LIPA and National Grid became effective, establishing the framework for LIPA's capacity purchases and contractual ramp-down, repowering, and site-acquisition rights.
  Source: lipower.org (https://www.lipower.org/wp-content/uploads/2016/10/2017-04-19_Barrett_Repowering_Study_Draft1.pdf)
- 2026-03-27 — New repowering concept under preliminary evaluation
  National Grid was reported to be in the early stages of evaluating whether to repower the Island Park Barrett facility, including analyzing costs, potential designs, and whether existing infrastructure would be retired or temporarily retained during any transition.
  Source: liherald.com (https://www.liherald.com/islandpark/stories/national-grid-island-park-barrett-power-plant-upgrade,221289)

## Sources

- [liherald.com](https://www.liherald.com/islandpark/stories/national-grid-island-park-barrett-power-plant-upgrade%2C221289) — liherald.com · tier public_source
- [liherald.com](https://www.liherald.com/islandpark/stories/national-grid-island-park-barrett-power-plant-upgrade,221289) — liherald.com · tier public_source
- [lipower.org](https://www.lipower.org/wp-content/uploads/2016/10/2017-04-19_Barrett_Repowering_Study_Draft1.pdf) — lipower.org · tier public_source
- [nationalgrid.com](https://www.nationalgrid.com/sites/default/files/documents/ng2008-00-national-grid-ra-2009.pdf) — nationalgrid.com · tier public_source

## Data quality

- This record documents the exact EIA plant 2511 (E F Barrett) and is limited to the Island Park/Hempstead facility. Adjacent plants such as Port Jefferson and Northport are excluded. No Barrett-specific purchase price or asset allocation was identified; the disclosed transaction value should not be presented as the plant's individual sale price. The steam units and combustion turbines that existed prior to the study remain the operating equipment as of March 2026. The historical study data identifies subgroups of combustion turbines (eight 18 MW GE units placed in 1970; four 41.8 MW Pratt & Whitney units placed in 1971). One GE unit had been retired prior to 2017, leaving seven operational GE units. The plant nameplate capacity of 669.2 MW reflects the current configuration of 2×188 MW steam units plus 7×18 MW plus 4×41.8 MW combustion turbines. As of March 2026, the plant was operating with 13 generators. The proposed repowering remains in early evaluation stages and has not been constructed or placed in service. No project-level financing documentation (debt close, power purchase agreement, or construction contract for a replacement facility) was located. The plant continues to operate under the existing power-supply agreement with LIPA dated October 12, 2012.

---

Canonical page: https://askthegrid.com/nyiso/assets/plant/e-f-barrett

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