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Division of residential buildings into energy classes. There is a project

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From the beginning of 2026, residential buildings are to be divided into energy classes – assumes the draft regulation of the Ministry of Development and Technology published in the Government Legislation Center. The introduction of such a system is provided for in the directive on the efficiency of buildings (EPBD).

The amended EPBD regulations, which came into force in May 2024, provide for two years to implement the division of residential buildings into energy performance classes. According to the proposed regulations, there will be eight classes in Poland – from the highest A + to the lowest G. The division is made according to the value of the EP indicator – demand for non-renewable primary energy expressed in kWh per square meter per year. The division will cover single-family and multi-family residential buildings, collective housing, public utility buildings – health care and others, as well as utility, storage and production buildings.

Division of residential buildings into energy classes

Buildings with a negative value of this indicator, i.e. in practice discharging more energy to the power grid or heating system than they draw from them, will receive class A+. Class A will be given to single- and multi-family residential buildings with an EP indicator below 63 and 59 kWh per square meter per year, respectively. Buildings in these two classes must have zero carbon dioxide emissions on site from fossil fuels. Single- and multi-family buildings with an EP indicator above 150 and 140 kWh per square meter per year, respectively, will be assigned to the lowest class G.

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The Directive also introduces goals of improving the performance of buildings so that they reach increasingly higher classes.

The draft regulation also specifies a new methodology for determining the energy performance of buildings, the method of preparing an energy performance certificate, and certificate templates. It is planned to introduce the so-called hourly method for calculating energy demand, with the exception of monthly and hourly methods for residential buildings.

According to estimates by the Fala Renowacji group, about 70% of the approximately 6.9 million Polish residential buildings require modernization, and about 16% of them, or about a million, are so-called energy vampires, which are responsible for the consumption of one third of the total amount of energy used in all of them. At the same time, 30% of the most energy-intensive residential buildings, or about 2 million, are responsible for more than half of this consumption.


Main image source: Shutterstock

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