NEW YORK (CBSNewYork) — Con Edison has urged customers who recently got their power back in Lower Manhattan to conserve energy while crews work to reinforce underground systems.

Con Ed said customers should refrain from using nonessential appliances such as washers and dryers, and the utility has asked building owners to limit their use of elevator banks and other equipment.

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The utility was in the process this weekend of reinforcing its underground system, and said customer cooperation should help ensure power does not go out anywhere again. After a major explosion at a power station at 14th Street and Franklin D. Roosevelt East River Drive at the height of Superstorm Sandy this past Monday night, power went out south of 39th Street on the East Side of Manhattan, and south of 31st Street on the West Side.

Power did not return to the affected areas until Friday night and Saturday morning. Some buildings in the affected area were still without power Sunday due to problems with their own equipment.

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Customers may report outages and check the status of their service restoration at, or by calling (800) 752-CONED. When reporting an outage, customers should have their ConEd account number on hand if possible, and should report whether their neighbors have also lost power.

Those who report outages will be contacted by Con Ed with estimated restoration times.

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Did you lose power during the storm? Leave your comments below…