(BIVN) – The power will go out for Hawai‘i Electric Light Company customers in North Kohala for ten hours span, overnight, in two weeks.

HELCO has announced a scheduled outage that will affect customers in Hawi, Kapa‘au and Halaula, as well as customers along Kohala Mountain Road between mile marker 6 and mile marker 9, from 8 p.m. on Thursday, Sept. 21, to 6 a.m. on Friday, Sept. 22, 2017.

“This temporary outage is necessary to allow Hawai‘i Electric Light personnel to safely perform maintenance and upgrade equipment to improve system reliability,” HELCO reported. “Customers are advised to unplug sensitive equipment prior to the outage and to keep refrigerator and freezer doors closed. Those who depend on medication or life support equipment should make arrangements for a back-up power supply or transportation to a facility outside the affected area.”

The County of Hawai‘i Department of Water Supply (DWS) recommends that residents store enough water for their use for the night, HELCO says. A temporary spigot will be set up on a fire hydrant near the Ka‘auhuhu Transfer Station for the community’s use during the power outage.

“Hawai‘i Electric Light regrets any disruption this outage could cause and thanks customers for their patience and understanding,” the utility says. “If there are any questions or concerns, please call 969-6666.”