Water use and energy use in buildings are linked!

Did you Know?

that water use and energy use in buildings are linked? In most cases, electricity or gas is used to heat water, so the less hot water you use, the less energy is needed to heat the water. In addition, your water company uses energy to purify and pump water to your facility, as well as in the treatment of your sewage. So part of your water and sewage bill is really an energy bill. In other words, saving water reduces your water and energy bills!


The United Nations (UN) estimates that, of 1.4 billion cubic kilometers (1 quadrillion acre-feet) of water on Earth, just 200,000 cubic kilometers (162.1 billion acre-feet) represent fresh water available for human consumption. 

More than one in every six people in the world is water stressed, meaning that they do not have access to potable water. Those that are water stressed make up 1.1 billion people in the world and are living in developing countries.

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According to the Falkenmark Water Stress Indicator, a country or region is said to experience “water stress” when annual water supplies drop below 1,700 cubic meters per person per year. At levels between 1,700 and 1,000 cubic meters per person per year, periodic or limited water shortages can be expected. When a country is below 1,000 cubic metres per person per year, the country then faces water scarcity . In 2006, about 700 million people in 43 countries were living below the 1,700 cubic metres per person threshold. Water stress is ever intensifying in regions such as China, India, and Sub-Saharan Africa, which contains the largest number of water stressed countries of any region with almost one fourth of the population living in a water stressed country. The world’s most water stressed region is the Middle East with averages of 1,200 cubic metres of water per person. In China, more than 538 million people are living in a water-stressed region. Much of the water stressed population currently live in river basins where the usage of water resources greatly exceed the renewal of the water source.

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Water-saving tips

  • Repair leaking pipes, fixtures, and seals. Small leaks add up to many gallons of water and dollars wasted each month.
  • Use water-saving faucets, showerheads, and toilets and urinals to save water.
  • Install controls that turn off faucets automatically.
  • Install an insulation blanket on water heaters seven years of age or older, and insulate the first 3 feet of the heated water “out” pipe on both old and new units.
  • If buying a new water heater, always buy the most efficient model possible. In areas of infrequent use, consider “tankless” water heaters to reduce “standby” storage costs and waste.
  • Set water temperature only as hot as needed (110-120 degrees) to prevent scalds and save energy (check local codes for specific temperatures).
  • In areas of infrequent water use, consider “tankless” water heaters to reduce standby storage costs and waste.

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