# Wallingford Energy

ISO-NE asset profile · https://askthegrid.com/assets/facilities/wallingford-energy

## Current generation inventory

EIA plant 55517 · Inventory reporting month: 2026-08.

- natural gas: 350 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: 2026-10-10T02:12:40.665346+00:00
- Filed coordinate (longitude, latitude): -72.83536, 41.448694
- OSM extract: 2026-10-08T20:21:06Z
- OSM mapped edit: 2023-01-25 04:37:37+00:00
- Map prepared: 2026-10-10T02:28:21.030994+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

Wallingford Energy is a 350 MW natural gas fired combustion turbine plant in New Haven County. It was owned by PPL until LS Power completed its purchase on March 9, 2011, and a 2016 filing described Wallingford Energy LLC as owner and operator. The plant provides power only when demand is high.

## Reviewed metrics

- **Nameplate capacity:** 350 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 55517 — plant-55517

## Facts

- **Technology:** Natural Gas Fired Combustion Turbine
- **Operator:** Wallingford Energy LLC

## Related parties

- **Acquirer / investor:** LS Power — acquirer in 2011 ([source](https://www.lspower.com))
- **Former owner / seller:** PPL Corporation — prior owner ([source](https://www.pplweb.com))
- **Lender:** GE Energy Financial Services — 2011 lender

## Sources

- [hartfordbusiness.com](https://hartfordbusiness.com/article/ge-lends-73m-to-ct-power-provider/) — hartfordbusiness.com · public_source — Source retained for exact-record publication review.
- [lspower.com](https://www.lspower.com/news/ls-power-completes-purchase-generating-assets-ppl-corporation/) — lspower.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/wallingford-energy

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