Leadership in Energy and Environmental Design

from Wikipedia, the free encyclopedia
7 World Trade Center is New York's first “green office tower” after the US Green Building Council
Hearst Tower (New York City) , another building built according to LEED criteria

The Leadership in Energy and Environmental Design ( LEED , translated as leadership in energy and environmentally friendly planning ) is a system for classifying ecological building that was developed by the US Green Building Council in 1998. It is a sustainability certification used worldwide and defines a number of standards for environmentally friendly, resource-saving and sustainable building.

Bay Adelaide Center , a building built according to LEED criteria in Toronto
The Deutsche Bank skyscraper in Frankfurt am Main (here with a view from Kaiserstraße) has been certified with LEED (platinum) and DGNB (gold)

Certification

In the LEED v2.2 version for new buildings and major renovations of commercial properties, there are 69 points to be awarded and the buildings can be classified into 4 quality levels:

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

In 2009, the previously valid version LEED v2.2 was replaced by LEED v3 (LEED 2009). In 2013 the latest version LEED v4 was published. In the current set of rules, 110 points can be achieved:

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

This distribution of points applies to all system variants of LEED certification. Buildings of various uses can be certified as part of the variants Building Design + Construction, Interior Design + Construction, Existing Buildings - Operations & Maintenance, Neighborhood Development and Dynamic Plaque. With LEED v4, real estate is rated on the basis of various criteria in the categories location and traffic, sustainable location, water efficiency, energy and atmosphere, materials and raw materials, interior quality and comfort as well as innovation and regional priorities.

In Germany, the German Green Building Association eV (GGBA) has been the official partner of the US Green Building Council (USGBC) since 2012 and is therefore the responsible contact person for the entire DACH region at national level.

Accreditation bodies

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

Other national rating systems

For a general description of national developments see article Green building .

criticism

The LEED standard often uses US standards, which are little known in Europe. For some time now, German engineering offices have been offering calculations based on US standards. In order to achieve the LEED standard, global measures are defined, which may then be unnecessary when viewed regionally (e.g. rainwater use or gray water use in areas with high rainfall). Building technology measures are also required that are counterproductive (e.g. air exchange rate of 100 m³ / h with mechanical ventilation ( air conditioning ) in toilets, where half - with half the energy consumption and only 70% investment costs - would be sufficient.)

See also

Web links

Individual evidence

  1. ↑ Sample of a LENOZ certificate
  2. ↑ Project description of an energy simulation for a LEED-certified building of a German engineering office