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Are there any Water Scores? Follow

Yes. The first 1-100 Water Score for Multifamily Housing was released on October 9, 2017.

Here are some details on the Water Score:

  • It was developed in collaboration with EPA’s WaterSense program.
  • It follows the same basic methodology as the 1-100 ENERGY STAR score.  Portfolio Manager will use the Use Details and the new Irrigated Area input to generate a “Predicted Water Intensity."  The property’s actual Water Use Intensity will be compared to the predicted value using a ratio (Actual WUI/Predicted WUI), the resulting ratio will be mapped to the score via a “lookup table.” As in the case of energy, a lower ratio (using less than predicted) will result in a higher score. Similar to the ENERGY STAR score, the new water score can be interpreted as the percentile of performance for a property, normalized for climate and operations.
  • Like the ENERGY STAR Score, the property must be at least 75% multifamily, but can have up to 25% of a different property type.
  • The Water Score is only available to properties in the US because the score calculation requires Evapotranspiration (ET) and P50 (a measure of precipitation) which we only have for US zip codes.
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