Leadership in Energy and Environmental Design

The Leadership in Energy and Environmental Design (LEED ) (translated as: leadership in energy and environmentally sound planning ) is a system for the classification of ecological building, which was developed by the U.S. Green Building Council in 1998. It defines a set of standards for environmentally friendly, resource-efficient and sustainable building.

Certification

In the version of LEED v2.2 for new construction and major renovations of commercial real estate, there are 69 points to be awarded and the building can be classified into four quality levels:

  • Certified: 26-32 points
  • Silver: 33-38 points
  • Gold: 39-51 points
  • Platinum: 52-69 points

In 2009, the then valid version of LEED v2.2 was replaced by LEED v3. In the current rules no longer 69 but 110 points are now achieve. Accordingly, the distribution of points has been redesigned:

  • Certified: 40-49 points
  • Silver: 50-59 points
  • Gold: 60-79 points
  • Platinum: 80 or more points

These points distribution applies to all versions of the LEED certification with the exception of the system variant for residential buildings (LEED for Homes ).

Accreditation bodies

" Green Building" subject matter experts can be accredited through the LEED Accredited Professional Exam. This accreditation authorizes a person to carry out the evaluation and certification of buildings according to the various LEED systems. The accreditation is administered by the Green Building Certification Institute.

Other national evaluation systems

  • LEED internationally
  • German Sustainable Building
  • Minergie in Switzerland
  • HQE in France
  • CASBEE in Japan
  • Estidama in UAE
  • GREEN STAR in Australia
  • BREEAM in the UK

See also general account of national developments in green building

Criticism

The LEED standard often falls back on U.S. standards, which are little known in Europe. For some time, therefore, also offer German engineering calculations according to U.S. standards on. The LEED standard is true of the number of approved buildings of the smaller and less significant building standards (as of 2013). Global measures are defined for the attainment of the standards that are then unnecessary in a regional perspective. (eg rainwater harvesting and gray water use in high rainfall areas). Technically building measures are required that are counter- productive. (eg 100 m3 / h with mechanical ventilation ( air conditioning systems ) in toilets, where half, would suffice at half the energy consumption and 70% of investment costs. )

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