MANHATTAN (PIX11) — Con Edison issued an alert Saturday urging customers to conserve energy as the New York City metropolitan area’s interstate natural gas pipelines faced additional pressure due to the cold weather and rising demand.

The alert was for over 4 million customers in Manhattan. Con Edison said customers should conserve energy until further notice to ensure enough natural gas to last the weekend.

Natural gas pipeline owners said their capacity to supply enough gas to the Northeast was affected by technical issues brought on by the cold weather and the region’s high demand for gas. The pipelines are not owned or operated by Con Ed.

Con Edison listed the following tips for conserving energy:

  • Set thermostats at the lowest comfortable temperature. Each degree lower reduces energy usage and decreases heating costs.
  • Use appliances only as needed. Turn off the lights in unoccupied rooms. Turn off television sets, computers and other appliances that are not in use.
  • Hold off on using appliances such as dishwashers, washing machines and dryers until the conservation request is lifted, if possible.
  • Make sure heating vents are not blocked by furniture, carpeting or anything else that could obstruct heat flow.