Con Edison says it is investing $1.3 billion to meet added summer energy demand in New York City and Westchester County.
The upgrades include a lot of new equipment.
The company says it has enough power to meet expected demand this summer. It's reminding customers to set their thermostats at 78 degrees to save electricity and money.
Con Edison also says it will spend an extra $230 million this year on storm-related projects.
Underground electrical networks are being redesigned in Lower Manhattan and Brooklyn.
The improvements also include protective barriers around critical equipment.