Con Edison is preparing to activate two new underground transmission lines in Brooklyn and Staten Island, a major step in its $505 million Reliable Clean City program aimed at strengthening New York City’s electric grid and supporting the transition to cleaner energy.
The new lines are designed to help the grid remain stable and efficient as more New Yorkers switch to electric vehicles and electric heating systems.
“Our Reliable Clean City investments demonstrate our commitment to maintaining our nation leading electric service while building a grid for the future,” said Matthew Ketschke, president of Con Edison.
Formally known as Consolidated Edison Inc., the utility provides electric, gas, and steam service to more than 3 million customers across New York City and Westchester County. The company continues to invest in modernizing infrastructure to meet rising energy demands and align with state climate goals.
Each new transmission line can carry up to 300 megawatts of electricity—enough to power hundreds of thousands of household appliances such as air conditioners, refrigerators, and lighting. The Brooklyn line runs one mile between substations in Gowanus and Greenwood, while the Staten Island line stretches more than nine miles between Goethals and Fox Hills.
These latest projects follow a successful 2022 upgrade in Queens, where a six-mile line between Corona and Long Island City improved service reliability. The new installations will serve southern Brooklyn and eastern Staten Island, especially during peak usage in summer and winter.
“Con Edison’s investments in its infrastructure make it possible for businesses in Sunset Park and other parts of our region to prosper, create jobs and serve our community with great products and services,” said Julio Peña, chairperson of Community Board 7 in Brooklyn.
The upgrades also create new pathways for renewable energy to enter the grid—crucial as the state pushes toward ambitious climate goals. By strengthening the transmission network, Con Edison is helping to integrate more solar, wind, and other clean energy sources into the city’s power supply.
Beyond energy reliability, the infrastructure projects support community growth and economic development. Local organizations and community boards have expressed support, citing early engagement and efforts to minimize construction disruptions.
Con Edison will continue monitoring energy demand and system performance, using the data to guide future investments and maintain long-term grid stability.

