Grid operator · Company

United Illuminating Co

United Illuminating Co is the grid operator for 4 power plants in the United States, with 2,578 MW of capacity connected. It is a subsidiary of Avangrid.

On its grid

The 4 assets connected to the grid of United Illuminating Co. It is their grid operator, not their owner.

Power plants 4 · 2,578 MW connected

Power plantLocationRoleCapacity
Lake Road Generating PlantConnecticut, United StatesGrid operator840 MW
New Haven SteamConnecticut, United StatesGrid operator642 MW
Bridgeport StationConnecticut, United StatesGrid operator576 MW
Bridgeport Energy ProjectConnecticut, United StatesGrid operator520 MW

By country

Where the assets and rights are.

Group

Parent companies

From United Illuminating Co up to its ultimate parent in the data.

  1. United Illuminating Co
  2. Avangrid

Partners and counterparties

Owners, operators and grid operators on the same assets.

Facts

FactValueSource
LocationUnited StatesGLEIF LEI · record · CC0 1.0 · checked 25 Oct 2026
LEI549300B4YGCZQQ06TA03Rare Context entity resolution · record · CC0 1.0 · checked 25 Oct 2026
GLEIF LEI · record · CC0 1.0 · checked 25 Oct 2026
Company number0159106GLEIF LEI · record · CC0 1.0 · checked 25 Oct 2026

Also recorded as

Sources name United Illuminating Co under 2 records; this page joins them. Links to any of them lead here.

Name in the sourceIdentifierSource
United Illuminating Coparty:eia-utility:19497EIA-860 / 860M / 923
The United Illuminating Companyparty:lei:549300B4YGCZQQ06TA03GLEIF LEI

Research on United Illuminating Co.Who owns the assets on its grid, where it has capacity left and how long its queue is, and an introduction to the people who decide on connections.

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