Gaza's only power plant said it will cease operations at noon (09:00 GMT) due to a lack of fuel sources.
In a statement, Gaza's electricity distribution company stressed that the shutdown will affect all vital facilities and households in the strip, exacerbating the humanitarian situation, reports Al Jazeera.
"The power plant in Gaza has stopped (working) due to the fuel shortage," said Mohammed Thabet, spokesman for the electricity company.
The company called on all relevant parties to intervene urgently and to allow the entry of fuel shipments necessary to operate the power plant.
Diesel for the power plant is usually trucked in from Egypt or Israel, who have both maintained a blockade of the enclave since 2007.
Gaza's 2.3 million residents experience regular power shortages and last week received only an average of 10 hours of electricity per day, according to data from the UN's humanitarian agency OCHA.