BULGARIAN LEGISLATION IN THE FIELD OF ENERGY EFFICIENCY HEAT RETENTION AND ENERGY CERTIFICATION OF NEW AND EXISTING BUILDINGS

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1 BULGARIAN LEGISLATION IN THE FIELD OF ENERGY EFFICIENCY HEAT RETENTION AND ENERGY CERTIFICATION OF NEW AND EXISTING BUILDINGS GOVERNMENTAL POLICY FOR HARMONIZATION of the technical rules and regulations in the field of Energy Efficiency buildings: Energy Performance Buildings Directive \EPBD\ Construction Products Directive \CPD\ European Standards \Harmonized ENs for construction products, supporting, structural EUROCODES\ provided by the Ministry of Economy and Energy \Energy Efficiency Agency \EEA\ and the Ministry of Regional Development and Public Works GENERAL STRUCTURE OF THE BULGARIAN LEGISLATION Legal framework for elaboration of all technical rules and regulations related to energy efficiency in buildings consist of: Energy Efficiency Act \EEA\ Spatial Planning Act; \SPA\ Energy Act EA Law on Technical Requirements to Products; Law on National Standardization; Ordinance on the Essential Requirements and Attestation of Conformity of Construction Products. Law on Chambers of Architects and Engineers in the Investment Design; STATUS OF BULGARIAN SECONDARY LEGISLATION The technical rules and requirements related to energy efficiency in buildings are set out in follows Ordinances for Energy performance of buildings - in force since 1 January 2005 Energy auditing of buildings - in force since 1 January 2005 Energy certification of buildings - in force since 1 January 2005 Energy conservation and heat retention of buildings - in force since 1 March 2005 Technical rules and Regulations for the design, execution and operation of facilities and installations for the generation, transmission and distribution /HVAC systems and installations in buildings / of heat energy shall be enforced on 19 February 2006 Ordinances,, Standards and Regulations for design and execution of all types of buildings residential, public, administrative, industrial, etc. - in a process of harmonization on the base of European Directives, Standards and practice. Bulgaria Sept.05 S.Alexandrova 1

2 ENERGY CERTIFICATION OF BUILDINGS \ECB\ Scope of the ECB : Rules and conditions for certification of buildings for energy efficiency; Two Categories of Certificates; Requirements for the Certificate s contents; Control over the activity of buildings certification. General positions Buildings certificates will be issued for new and existing buildings after detailed audit for energy efficiency in relation with requirements of the ECB Ordinance for heat retention and energy conservation \SPA\. For the aims of drawing up annually programs with measures for energy efficiency. Simplified audit will be applied for this programs. ECB regulations will be applied to new and reconstructed buildings, to major renovations or modernized existing buildings. The energy certification can be done after obtaining building permition for use, when there is a sold or rented out of buildings. Every building can be certified in the order of this ordinance. For public buildings \state or municipal property\ with common useful area above 1000 square meters, certification will be mandatory. The energy certificate is issued only for a whole building not for a separated apartment. The energy certificate shall be issued for a period up to 10 years and shall be put on a visible place. CERTIFICATE А and В When the buildings will obtain a certificate of category A, or category B, or will not obtain a certificate: Category A when the value of energy performance characteristics is equal or less by the reference value, according to the requirements of the ECHRB-2005 or when the value of energy performance characteristics is equal or less by the reference value, according to the requirements of the norms from 1999 concerning buildings erection until *The owners will be free of taxes for 10 years Category B when the value of energy performance is equal or less by the reference value, according to the requirements of the norms \approximately \ actual for the time of introduction a building in use. *The owners will be free of taxes for 5 years Bulgaria Sept.05 S.Alexandrova 2

3 Illustration of category A and B and also energy certificate standard CERTIFICATE А and В В No issue of certificate А Bulgaria Sept.05 S.Alexandrova 3

4 ENERGY CONSERVATION AND HEAT RETENTION OF BUILDINGS \ECHRB\ Scope and General positions of the Ordinance: Technical requirements for energy conservation and heat retention in buildings Methodology for defining annually energy consumption, taking into account: heat losses through the building structures and windows, heat gains of internal source and solar radiation, climatic date, and other specific requirements to buildings Technical rules and norms for design of thermal insulation, incl. values of the coefficients thermal transmittance also rules for water vapour penetrating, water tightness, air leakage and solar protection in the summer period. ECHRB regulations apply to the design and execution of new residential buildings and non residential building \education, hospitals, offices, hotels\ and also to reconstruction, to major renovation or modernization of existing buildings. ECHRB is addressed for buildings with normative internal temperature above 19 С and relative humidity is below 75 %; Bulgaria Sept.05 S.Alexandrova 4

5 ECHRB regulates the technical criteria for determination the main indicators for energy consumption which are different for: Residential building - annually energy consumption for heating per 1m 2 Non residential building coefficients of specific transmission thermal losses through building envelope and elements Low temperature non residential building - annually energy consumption for heating per 1m 3 Technical criteria for energy consumption and heating retention for existing buildings is coefficients of thermal transmittance through a building envelope element Appendixes of ECHRB ordinance Climatic map and date - in Bulgaria are 9 climatic divisions Detailed methodology for calculation energy consumption and energy performance of the building based on EN 832 and the best practice Simplified methodology for calculation energy consumption for building, for existing building stock of Residential-Building Method for calculation humidity regime Protection of glazing façade by solar radiation Bulgaria Sept.05 S.Alexandrova 5