A power outage Friday has left about 600 DTE Energy customers in Troy without and forced officials at Walsh College to close the school's Troy campus until Monday.

The power went out about 1 p.m. for the large area between Big Beaver and Square Lake roads between Crooks and Rochester roads, according to DTE Energy's power outage map.

Walsh College anounced Friday that the campus lost power and would be closed until 7 a.m. Monday.

The exact cause and estimated duration of Friday's outage in Troy wasn't known.

Although the area got a little break Friday from this week's record-high temperatures, the dayslong heat wave has continued to push DTE's equipment to its maximum capacity for at least seven days straight, said Alejandro Bodipo-Memba, a spokesman for DTE Energy.

Bodipo-Memba pointed out that the entire energy system is stressed. DTE Energy are asking customers to try to reduce their energy use by turning up home air conditioning thermostats a couple degrees and waiting until evening hours to run dishwashers, washing machines and other heavy appliances to help lessen the load on the system.