The 42-minute power outage in Sidney Friday was due to a blown fuse at the east Sidney substation likely from a heavy load, a Montana-Dakota Utilities spokesman said.

The outage began at 1 p.m., knocked out power to homes and businesses on the east half of the city. Spokesman Tim Rasmussen said the outage was likely due to a "heat soak" in which demand for electricity to cool down buildings rises amidst an extended period of high heat.

Workers subsequently transferred a load to the west Sidney substation and recovered power.

Rasmussen reminds residents that by keeping windows closed, fans circulating air and staying cognizant of power usage, it cuts on demand for electricity and prevents similar situations.