Earth Hour 2025: DOE calls on public to conserve energy, water

The Department of Energy (DOE) has urged the public to be responsible in consuming energy and water as the world celebrates Earth Hour 2025 on Saturday night.

This year's Earth Hour, which has as its theme "Switch Off and Secure Water for All", calls attention to the link between energy conservation and water security, the DOE said.

Every kilowatt-hour of electricity used requires water, such as in cooling processes in thermal power plants, hydropower systems, or the energy needed to pump, treat, and distribute water, Energy Secretary Raphael Lotilla said.

"Using energy judiciously is not just about reducing consumption — it is about preserving life itself. Every watt saved is a drop of water protected, reinforcing the delicate balance of our environment. By embracing energy efficiency and conservation, we do more than cutting emissions, we secure the future of our most vital resources for generations to come," he said.

Lotilla urged the public to participate in this year's Earth Hour by switching off non-essential lights from 8:30 to 9:30 p.m. on Saturday, March 22.

Started in 2007, Earth Hour is a global grassroots movement uniting people to take action on environmental issues and protect the planet by switching off lights for one hour.

Several establishments in Metro Manila and the rest of the Philippines are again participating in this year's Earth Hour.

“Through small but consistent actions, individuals, businesses, and communities can make a lasting impact on energy and water conservation, strengthening climate resilience and promoting a more sustainable way of life,” Lotilla said.

The DOE said the public can adopt the following responsible practices, among others:

• Switch off non-essential lights and appliances when not in use.
• Use energy-efficient technologies such as LED bulbs and inverter appliances.
• Reschedule high-energy-consuming activities during peak hours, which are typically from 11:00 AM to 3:00 PM on weekdays and 6:00 PM to 9:00 PM on weekends.
• Reduce water waste.
• Plant trees.

—KG, GMA Integrated News