Energy performance certification

The Commission is in the process of updating some of the content on this website in light of the withdrawal of the United Kingdom from the European Union. If the site contains content that does not yet reflect the withdrawal of the United Kingdom, it is unintentional and will be addressed.

Langes Haus - Germany

This is a project involving the transformation of an old farmhouse in the foothills of the Alps: the aim was to create a sustainable and (as far as possible) self-sufficient surplus-energy building.  The Langes Haus development should also be able...

School of Design and Environment - Singapore

This extension to a School of Design & Environment building at the National University of Singapore is an outstanding example of a net zero-energy building (NZEB) in the tropics. The five-storey building is home to labs, design studios and...

Langes Haus - Germany

This is a project involving the transformation of an old farmhouse in the foothills of the Alps: the aim was to create a sustainable and (as far as possible) self-sufficient surplus-energy building.  The Langes Haus development should also...

School of Design and Environment - Singapore

This extension to a School of Design & Environment building at the National University of Singapore is an outstanding example of a net zero-energy building (NZEB) in the tropics. The five-storey building is home to labs, design studios...

Rathaus Freiburg – Germany

The university city of Freiburg is home to an innovative city hall that is now the biggest surplus-energy building in Europe. The building boasts outstanding thermal insulation that allows for low-temperature heating and high-temperature...

Energy+Home1.0 – Germany

In 2011, a detached house built in Mühltal outside Darmstadt in the 1970s became the first of its kind to be restored and converted into an ‘surplus energy’ house complete with electric vehicle technology.  Following the redevelopment, the...

'Vackor' kindergarten - Hungary

1. GENERAL DESCRIPTION   The Vackor kindergarten is located in the 18th District of Budapest. The kindergarten has been built between 1978-1982 using lightweight construction. Currently the energy performance class...

Elobau production and offices buildings - Germany

When Elobau conducted a study for its new production building, one key consideration was its energy vision: that if possible, the new facility should rely entirely on renewable energy. The brief was not just to see if it would be possible...

Eisbärhaus units A & B- Germany

Built in 2019, the Eisbärhaus was designed as a passive building comprising two units. Building materials were selected according to guidelines provided by the Austrian environmental association Umweltverband Vorarlberger Gemeindehaus. All...

Aktiv-Stadthaus social housing in Speicherstraße - Germany

The Aktiv-Stadthaus in Frankfurt am Main is the first large apartment building in a city to be built according to the Efficiency House Plus standard. The first residents moved in during the summer of 2015. The aim of its innovative energy...