The Y-50 Cable (also known as the Dunwoodie–Glenwood Line) is an undersea and underground

high voltage High voltage electricity refers to electrical potential large enough to cause injury or damage. In certain industries, ''high voltage'' refers to voltage above a certain threshold. Equipment and conductors that carry high voltage warrant sp ...

electric transmission Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwel ...

cable between

Westchester County Westchester County is a county located in the southeastern portion of the U.S. state of New York, bordering the Long Island Sound and the Byram River to its east and the Hudson River on its west. The county is the seventh most populous cou ...

and

Long Island Long Island is a densely populated continental island in southeastern New York (state), New York state, extending into the Atlantic Ocean. It constitutes a significant share of the New York metropolitan area in both population and land are ...

via the

Long Island Sound Long Island Sound is a sound (geography), marine sound and tidal estuary of the Atlantic Ocean. It lies predominantly between the U.S. state of Connecticut to the north and Long Island in New York (state), New York to the south. From west to east, ...

and

Hempstead Harbor Hempstead Harbor (also known as Hempstead Bay) is a bay hugging the northern coast of Long Island, in Nassau County, New York, Nassau County, New York (state), New York. Located off of the Long Island Sound, it forms the northernmost portion of t ...

New York New York most commonly refers to: * New York (state), a state in the northeastern United States * New York City, the most populous city in the United States, located in the state of New York New York may also refer to: Places United Kingdom * ...

, United States.

Description

The Y-50 Cable travels between the Dunwoodie Substation in

Yonkers Yonkers () is the List of municipalities in New York, third-most populous city in the U.S. state of New York (state), New York and the most-populous City (New York), city in Westchester County, New York, Westchester County. A centrally locate ...

, Westchester County to the

Glenwood Generating Station Glenwood Generating Station is a power station in Glenwood Landing, New York owned by National Grid USA. It is mainly known for being the former site of an architecturally significant 1920s brick power station. That building and an adjacent 1950 ...

in Glenwood Landing, Nassau County. It travels under the Long Island Sound between Westchester County and Long Island. The line between Dunwoodie and the Glenwood Generating station is approximately – or roughly . Y-50 is one of five undersea transmission lines connecting between Long Island and the Continental United States as of 2021 (four of which are operated by NYPA). The line delivers power to both

Long Island Power Authority Long Island Power Authority (LIPA, "lie-pah") is a municipal subdivision of the State of New York that owns the electric transmission and electric distribution system serving all of Long Island and a portion of Queens in New York City known as ...

and

Consolidated Edison Consolidated Edison, Inc., commonly known as Con Edison (stylized as conEdison) or ConEd, is one of the largest investor-owned energy companies in the United States, with approximately $12 billion in annual revenues as of 2017, and over $62 ...

History

The cable began operating in 1978. In 2002, the cable experienced a fault that caused a month-and-a-half interruption, after which the operators lowered its usage from its 600 MW capacity down to 400 MW for a few months. It experienced another fault in 2021, at which point it had a 656 MW capacity.

References

{{Long Island power Long Island Sound Energy infrastructure completed in 1978 Energy infrastructure on Long Island, New York 1978 establishments in New York (state)

Description

History

See also

References