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The penalty coefficient is the result of bad management of existing buildings and its use increases the general energy consumption of the assessed building. For example a bad repair to a door of the staircase in an apartment block will be translated as a penalty of 1,05 applied to the calculated general energy consumption based on a normal (rational) use of energy in the building. There are 12 penalty types, both for envelope and HVAC systems and equipment.

The best mark is N=100 for the most efficient building and N=20 for a building with a very low performance.

The first page of the certificate displays the characteristics of the building performance (annual specific energy consumption for heating, hot water, ventilation, lighting, total specific energy consumption, CO2 emissions, the energy class for existing and reference building and the energy mark). The second page displays the performance of the theoretical building, using the existing building’s configuration.

The timetable for implementing the energy certification in various types of buildings is divided into two phases until the full implementation comes into force, when all the buildings will be included in the certification system: new buildings, major renovations, public buildings and buildings when constructed, sold or rented.

In the first phase, from January 1, 2007, certification is only required for all new residential and non-residential buildings with a floor area greater than 1,000 m2 applying for a construction permit and also for existing non- residential buildings being renovated.

In the first phase, from January 1, 2007, certification is required for all new residential and non-residential buildings requesting a construction permit and for existing buildings with a total useful floor area over 1000 m2 occupied by public authorities and by institutions providing public services and also for existing non-residential buildings being renovated.

The second phase, from 1 January 2010, includes all existing residential buildings and apartment buildings, regardless of their floor area, when they are sold or rented.

Up to the end of January 2008, more than 800 Energy Certificates were registered on a web based central registration system which qualified experts must access and use to issue certificates. This way, a national database of certified buildings is being updated with information that will be useful to monitor the progress of different aspects of the implementation of the directive, from basic statistics such as the number of certified buildings to carrying out studies for the future possible tightening of minimum requirements that the EPBD demands on a periodic basis.

Calculation procedures

The calculation procedures (art. 3) are defined in the “Thermal regulations” (C107) and in the “Methodology of calculation of the energy performance of buildings - Mc 001/part 1,2,3 – 2006” taking into account all CEN standards available in 2006 and Romanian research activity results, available both for new and existing buildings and also for residential and non-residential buildings.

As a software tool has not been available until now, Excel spreadsheets have been used as a tool for doing the calculations, for both residential and small non-residential buildings. There is a cooperation agreement between AIIR, Vabi and ISSO from Netherlands for the development of software for residential buildings and another software calculation for non

EPBD Buildings Platform > P079_EN_Romania-May 2008

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