2009 version of the US green building standard ups energy requirements and introduces new water use reduction demand

The latest version of the LEED standard in the US will demand a minimum energy performance and water use reductions for new buildings.

The new additions to the LEED 2009 standard follw a public consultation into changes being made to the standard by the US Green Building Council, which owns and runs the LEED process. In an email to USGBC member president Rick Fedrizzi listed the key changes proposed, which are:

  • Increased Minimum Energy Performance prerequisite requirements; update to ASHRAE 90.1-2007 for energy requirements; and other energy efficiency enhancements, including increased incentive for On-Site Renewable Energy
  • A new Water Use Reduction prerequisite and increased incentive for Water Use Reduction
  • Language that addresses mixed use projects
  • More options for low-emitting & fuel-efficient vehicles
  • Expanded options for heat island effect-non roof materials
  • Inclusion of requirements for non-carpet flooring
  • Inclusion of permanent monitoring system for thermal comfort verification
  • Alignment and clarification of daylight and views requirements

The proposals will now go to a vote to members of the USGBC this week.