PSEG Long Island is urging customers to cut back on nonessential electricity use to help ease the stress on electrical equipment in their neighborhoods as the area deals with its fourth day of extreme heat.

PSEG Long Island expects to have the electrical capacity required to meet customer demand during this heat wave.

While temperatures are not expected to reach Tuesday’s near-record levels, a heat advisory is in place through the evening. The heat index forecast ranges between 98 and 102 degrees.

“Four consecutive days of extreme heat puts a great deal of physical strain on lines, transformers and other common pieces of equipment that make up our energy grid and have been handling peak levels of demand,” said Michael Sullivan, PSEG Long Island’s vice president of electric operations. “While we expect to have sufficient electrical capacity to meet the demand, we urge customers to reduce their energy usage to help protect the grid and limit the number of scattered, heat-related outages that occur today.”

PSEG Long Island is also planning to activate the voluntary Smart Savers thermostat program to reduce loading on the system by automatically adjusting the thermostats of residential customers who have chosen to participate.