The U.S. Department of Energy on Friday proposed energy efficiency standards on water heaters it said would save consumers $11.4 billion on energy and water bills annually.

Trump to Lift Water Curbs to 'Make America's Showers Great Again' WASHINGTON (Reuters) - (This April 9 story has been corrected to say 'water flow' instead of 'water pressure' in paragraph 1, to ...

[1] Hong Kong’s first facility that treats waste water for reuse will be able to save the city more than HK$48 million annually once it becomes fully operational, the government said last month ...