At exactly 8:30 p.m. on March 22, many areas and roads across Hai Phong joined the symbolic action of switching off lights and unnecessary electrical devices in response to the “Earth Hour” event.
In 2025, Earth Hour carried the message “Green Transition – Green Future”. This was the 17th year Vietnam joined the Earth Hour campaign organized by the World Wide Fund for Nature (WWF), raising public awareness of climate change and electricity conservation while protecting the climate and Earth’s environmental ecosystems.
The City Theatre area switches off its lights in response to “Earth Hour”
The City Theatre area switches off its lights in response to “Earth Hour” 
Hai Phong’s central strip before and after “Earth Hour” 
Earlier, Hai Phong Electricity One Member Limited Liability Company (Hai Phong Power Company) coordinated communications and arranged banners and posters promoting electricity conservation and Earth Hour 2025 along the city’s main streets so that agencies, organizations and residents could learn about and join the campaign. 
Hai Phong Electricity One Member Limited Liability Company switches off its lights in response to “Earth Hour”
Nguyen Van Hung of Tru Khe residential group in Dong Hoa Ward, Kien An District, said that Earth Hour has been held annually in Hai Phong for many years. After following mass-media coverage of energy conservation and the Earth Hour program, his family members joined the event, helping raise each resident’s responsibility for saving electricity and reducing the harmful effects of climate change while supporting the State’s electricity-conservation policy.
Truong Chinh Street in Kien An District switches off high-voltage lights and many signs in response to “Earth Hour”
The city center after switching off its lights in response to “Earth Hour”
With its meaningful purpose, the one-hour Earth Hour event, from 8:30 p.m. to 9:30 p.m., will not stop at a symbolic lights-out action. It will continue to spread to every organization and individual, encouraging practical energy-saving and environmental-protection activities for a green Earth and sustainable development.
According to Hai Phong Power Company, the total electricity load in Hai Phong at 9 p.m. on March 22, 2025 was 1,063 MW, while the estimated electricity saved during Earth Hour across the city was 68,400 kWh.