Non-essential lighting at Penrith City Council will be switched off on March 25 as part of the largest movement for climate change.
At 8.30pm, council will flick off the lights as part of Earth Hour, which celebrates its 10th anniversary in 2017.
The initiative was started in Sydney and has now become a global phenomenon, with an estimated 50 to 100 million people across 35 different countries now taking part.
Penrith Mayor John Thain said Earth Hour was an easy way to get involved in sustainability and support the environment.
“We’ll be switching off all non-essential lighting at council facilities and we’re encouraging everyone in the Penrith community to join us in switching off your lights for one hour,” Cr Thain said in a statement.
“Protecting and preserving our environment is a high priority for Council, and the community feels the same way.”
Over the last 10 years, counci had planted more than 48,600 plants, installed 221kW of solar panels on its facilities, collected and recycled 624 tonnes of electronic waste, and recycled 167,974 tonnes of plastic, cardboard, paper and cans, he said.
About 233,888 tonnes of kitchen and garden waste has also been recycled, Cr Thain said.