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250

200

150

100

50

0 0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 1,1 1,2 1,3 1,4

Felület/térfogat arány A/V (m2/m3)

systems together. It is expressed in kWh/m2a primary energy need. The gross energy requirement for heating, cooling, ventilation, domestic hot water and – excepting residential buildings – artificial lighting is taken into account. For residential, office and school buildings the limitation is prescribed as a function of the surface to volume ratio (see the attached graphs). Numeral values of the efficiency and the specific self-consumption of the service systems can be taken from the Tables of the Annex unless reliable and more precise figures can be given and proven by the designer. For other buildings and buildings of mixed use a reference value (“notional building”) is calculated case by case in the following way:

> it is assumed that the specific heat load complies with the requirement;

300 250 200 150 100 50 0

0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 1,1 1,2 1,3 1,4

Felület/térfogat arány

300 250 200 150 100 50 0 0 0,10,20,30,40,50,60,7 0,80,9 1 1,11,21,31,41,5

Felület/térfogat arány SA/V (m2/m3)

Specific primary energy consumption (kWh/m2a) requirements vs surface to volume ratio - from the top to the bottom: residential buildings 110 – 230 office buildings school buildings

132 - 260 90 - 254

Providing the floor area of the building exceeds 1000 m2 the rationality of use of alternative energy or cogeneration should be checked. This means that the primary energy use should be calculated taking into account the alternative sources and the other intended service systems: the better one should be applied.

Requirements for existing non-residential buildings larger than 1000 m2

In the case of major renovation of any building larger than 1000 m2 the same requirements as those for new buildings must be applied. The definition of major renovation is based on the value of the building (excluding the building site): if the costs of the renovation of the building envelope and/or the mechanical systems exceed 25% of the building’s value, the requirements should be fulfilled.

Public Buildings – periodic certification

The definition of public buildings is still under discussion, the intention is that it will include only state-owned buildings, in order to reduce the cost of certification.

Qualified Experts

Although about 1500 practicing engineers and architects joined the training courses run by universities and other bodies, and the Chamber of Engineers was prepared for the exams in 2006, to date no licences have been issued, due to the lack of the relevant regulation on the certification. When the certification method is formalised, the procedures should be restarted.

EPBD Buildings Platform > P070_EN_Hungary-March 2008

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It should be noted that compliance with the specific heating load requirement does not guarantee that the annual primary energy requirement will be fulfilled: it depends on the service systems and on the energy carriers. Should these be less favourable, the negative consequences must be compensated by better building standards.

The rating is based on the ratio of the actual specific primary energy consumption and the prescribed or reference value.

> the net energy need is calculated according to the standards or to the State of the Art (e.g. set indoor temperature, air change rate, internal gain in the gymnasium, in the kitchen, in the restaurant, in the swimming hall and so on of a wellness hotel);

> whilst calculating the gross energy usage, given types and efficiency values of equipment and service systems and natural gas should be taken into account – the result is the reference value. Whatever building and service systems are applied, the primary energy need must not exceed the above reference value.

Összesített energetikai jellemző EP (kWh/m2a)

Összesített energetikai jellemző EP (kWh/m2a)

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