Risk: Medium Substation Operational

North Haven Substation - 115 kV Electrical Substation in North Haven, Connecticut

United States

Overview

North Haven Substation is an operational electrical substation in North Haven, Connecticut, owned and operated by United Illuminating Company, operating at 115 kV.

North Haven Substation is an operational electrical substation located in North Haven, Connecticut, United States. It is owned and operated by United Illuminating Company, a major electric utility serving the state. The substation operates at a voltage of 115 kV, placing it in the medium-to-high voltage range typical for distribution and sub-transmission networks in the region. The facility operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), which set reliability standards for the bulk power system. As part of the United Illuminating system, it integrates with the ISO New England grid, ensuring compliance with regional transmission planning and operational protocols. The 115 kV voltage level is common for substations that step down power from higher transmission voltages for local distribution. This substation plays a key role in delivering electricity to the North Haven area and surrounding communities. Its location in a suburban setting supports residential, commercial, and industrial loads. The facility contributes to grid stability and reliability in southern Connecticut, a region with significant energy demand due to its population density and economic activity.

Environmental context

The substation is situated in a suburban area of North Haven, Connecticut, within a region characterized by mixed residential and commercial land use. The local environment includes proximity to natural water bodies and green spaces, which can be affected by electromagnetic fields and infrastructure maintenance. The facility's operation aligns with state and federal environmental regulations, including those related to stormwater management and hazardous materials handling. The 115 kV voltage level is typical for substations in such settings, balancing transmission efficiency with community integration.

Frequently asked questions

North Haven Substation is located in North Haven, Connecticut, United States, at latitude 41.414584 and longitude -72.843031.

North Haven Substation operates at a voltage of 115 kV, which is a common voltage for sub-transmission and distribution substations in the United States.

North Haven Substation is owned and operated by United Illuminating Company, a regulated electric utility serving customers in Connecticut.

Substations in the United States must comply with NERC reliability standards and FERC regulations. For facilities connected to the ISO New England grid, additional regional planning and operational requirements apply.

A 115 kV substation typically steps down higher transmission voltages (e.g., 230 kV or 345 kV) for local distribution, or steps up from generation sources. It serves as a critical node for voltage regulation and power flow control within the grid.
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