# Regeneron Pharmaceuticals Inc.

NYISO asset profile · https://askthegrid.com/assets/facilities/regeneron-pharmaceuticals-inc

Regeneron Pharmaceuticals, Inc. - Westchester County - NYISO

Regeneron Pharmaceuticals Inc. operates a 1.3 MW commercial solar photovoltaic facility at 777 Old Saw Mill River Road, Tarrytown, Westchester County, New York, within the NYISO balancing area and NYISO Zone I–Dunwoodie. The solar facility comprises three operating generators—P19PV (0.8 MW), P9PV (0.4 MW), and B17PV (0.1 MW)—with combined nameplate capacity of 1.3 MW and annual generation of approximately 2.2 GWh. The facility is grid-connected at 0.48 kV through Consolidated Edison. EnterSolar, LLC served as developer/installer for the associated NYSERDA Solar PV project 291, listed at 545 kW capacity.

## Metrics

- **Nameplate capacity:** 1.3 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 62423 — plant-62423

## Facts

- **Technology:** Solar Photovoltaic
- **Operator:** Regeneron Pharmaceuticals, Inc.

## Related parties

- **Construction contractor / equipment supplier:** EnterSolar, LLC — Developer/Installer ([source](http://www.entersolar.com/))
- **Transmission owner / interconnecting utility:** Consolidated Edison Company of New York, Inc. — Electric utility and transmission/distribution owner
- **Balancing authority / market operator:** New York Independent System Operator — Balancing authority and market operator ([source](https://www.nyiso.com/))

## Sources

- [agendaquick.greenburghny.com](https://agendaquick.greenburghny.com/print_all.cfm?seq=1634&reloaded=true&id=0) — agendaquick.greenburghny.com · public_source — Source retained for exact-record publication review.
- [api.eia.gov](https://api.eia.gov/v2/electricity/operating-generator-capacity/data?api_key=DEMO_KEY&data[0]=nameplate-capacity-mw&data[1]=net-summer-capacity-mw&data[2]=net-winter-capacity-mw&data[3]=operating-year-month&data[4]=planned-retirement-year-month&data[5]=county&data[6]=longitude&data[7]=latitude&facets[plantid][]=62423&facets[generatorid][]=B17PV&frequency=monthly&start=2026-06&end=2026-06) — api.eia.gov · authoritative — Source retained for exact-record publication review.
- [api.eia.gov](https://api.eia.gov/v2/electricity/operating-generator-capacity/data?api_key=DEMO_KEY&data[0]=nameplate-capacity-mw&data[1]=net-summer-capacity-mw&data[2]=net-winter-capacity-mw&data[3]=operating-year-month&data[4]=planned-retirement-year-month&data[5]=county&data[6]=longitude&data[7]=latitude&facets[plantid][]=62423&facets[generatorid][]=P19PV&frequency=monthly&start=2026-06&end=2026-06) — api.eia.gov · authoritative — Source retained for exact-record publication review.
- [api.eia.gov](https://api.eia.gov/v2/electricity/operating-generator-capacity/data?api_key=DEMO_KEY&data[0]=nameplate-capacity-mw&data[1]=net-summer-capacity-mw&data[2]=net-winter-capacity-mw&data[3]=operating-year-month&data[4]=planned-retirement-year-month&data[5]=county&data[6]=longitude&data[7]=latitude&facets[plantid][]=62423&frequency=monthly&start=2026-06&end=2026-06) — api.eia.gov · authoritative — Source retained for exact-record publication review.
- [der.nyserda.ny.gov](https://der.nyserda.ny.gov/projects/291) — der.nyserda.ny.gov · authoritative — Source retained for exact-record publication review.

---

Canonical page: https://askthegrid.com/assets/facilities/regeneron-pharmaceuticals-inc
Website: [Regeneron Pharmaceuticals, Inc.](https://www.regeneron.com/)

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