# Laurel Mountain Hybrid

PJM asset profile · https://askthegrid.com/assets/facilities/laurel-mountain-hybrid

## Current generation inventory

EIA plant 57447 · Inventory reporting month: 2026-08.

- wind: 97.6 MW operating nameplate
- Capacity basis: operating_generator_nameplate_mw
- Source inventory: [EIA-860M workbook (preliminary)](https://www.eia.gov/electricity/data/eia860m/xls/august_generator2026.xlsx)
- Inventory retrieved: 2026-10-10T22:49:53.020309+00:00
- Filed coordinate (longitude, latitude): -79.8866, 39.0072
- OSM extract: 2026-10-09T20:21:04Z
- OSM mapped edit: 2025-08-08 19:12:01+00:00
- Map prepared: 2026-10-10T23:05:21.962528+00:00

Battery power (MW) and stored energy (MWh) are separate measures. Shared physical-site membership does not establish electrical connectivity, settlement or a common export limit.

## Reviewed overview

Laurel Mountain Hybrid is a 97.6 MW onshore wind turbine plant in Barbour County. Laurel Mountain is a 97.6 MW wind farm between Randolph and Barbour counties in West Virginia, with 61 GE 1.6 MW turbines and 32 MW of integrated A123 Systems battery storage. AES announced its commercial launch in November 2011, calling it the largest power storage system in its class. The storage lets it give PJM Interconnection instantaneous response and smooth ramp events.

## Reviewed metrics

- **Nameplate capacity:** 97.6 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 57447 — plant-57447

## Facts

- **Technology:** Onshore Wind Turbine

## Related parties

- **Operator:** AES Energy Storage — storage owner-operator ([source](https://www.aes.com))
- **Equipment supplier:** A123 Systems — battery supplier
- **Equipment supplier:** General Electric — turbine supplier ([source](https://www.ge.com))
- **Balancing authority:** PJM Interconnection — grid operator served ([source](https://www.pjm.com))

## Sources

- [altenerg.com](https://www.altenerg.com/back_issues/marapr2012-story5.htm) — altenerg.com · public_source — Source retained for exact-record publication review.
- [renewableenergymagazine.com](https://www.renewableenergymagazine.com/wind/wind-farm-opens-with-energy-storage-capacity) — renewableenergymagazine.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/laurel-mountain-hybrid
Website: [AES Wind Generation](https://www.aes.com)

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