2. Bulgaria Czech Republic HungaryLatviaLithuaniaPolandRomania Slovak Republic Slovenia Overview of the NAS regulations,building sector and research activities Sašo Medved University of Ljubljana Slovenia

3. Technical University of Budapest, Hungary IPA SA, Bulgaria Brno Univertity of Technology, Chech Republic EnEffect Center for Energy Efficiency, Bulgaria Czech Technical University in Progue Intertermo CCConcept Ltd, Romania Warsaw University of Technology, Poland Latvian Academy of Science, Latvia Slovak University of Technology, Slovak Republic Black Sea Regional Energy Centre and Technical University of Sofia Institut of Heating and Sanitary Technology, Poland Ecofys, Poland Technical University pf Cluj-Napoca, Romania ZRMK Technological Building & C.E. Institut, Slovenia University of Ljubljana, Slovenia Lithuanian Energy Institute, Lithuania Report prepared by

4. Purpose To examine the characteristics of the expanded EU market, technological, economic, social and educational dimensions, as it relates to building energy research To examine the characteristics of the expanded EU market, technological, economic, social and educational dimensions, as it relates to building energy research To identify potential target market sectors on the basis of potential benefits To identify potential target market sectors on the basis of potential benefits Identify the most appropriate technologies for NAS markets Identify the most appropriate technologies for NAS markets Identify and implement coherent technology transfer and promotion strategies appropriate to NAS market needs Identify and implement coherent technology transfer and promotion strategies appropriate to NAS market needs

5. Building thermal insulation and energy performance regulation Building thermal insulation and energy performance regulation Energy supply survay Energy supply survay Meteorological datas and available databases Meteorological datas and available databases Building sector development and RTD programs overview Building sector development and RTD programs overview Status of research activities and technologies Status of research activities and technologies Chapters

6. Heat loss calculation - methodology BOL CZ H LAT LIT POL ROM SLV SLO EN EN ISO National Heat loss coeficient, ground, thermal bridges, windows

7. Heat losses coeficients BOL CZ H LAT LIT POL ROM SLV SLO 0,2 0,4 0,8 1,2 1,6 2,0 2,4 roofs walls windows

8. Heat losses coeficients BOL CZ H LAT LIT POL ROM SLV SLO 0,2 0,4 0,8 1,2 1,6 2,0 2,4 roofs walls windows state-of-the-art

9. Heat losses coeficients BOL CZ H LAT LIT POL ROM SLV SLO 0,2 0,4 0,8 1,2 1,6 2,0 2,4 roofs walls windows great potential

10. Heat losses coeficients BOL CZ H LAT LIT POL ROM SLV SLO 0,2 0,4 0,8 1,2 1,6 2,0 2,4 roofs walls windows included in overall envelope U

11. Heat losses coeficients BOL CZ H LAT LIT POL ROM SLV SLO 0,2 0,4 0,8 1,2 1,6 2,0 2,4 roofs walls windows f (  T) compared with fictive building with same size

12. Heat losses coeficients BOL CZ H LAT LIT POL ROM SLV SLO 0,2 0,4 0,8 1,2 1,6 2,0 2,4 roofs walls windows economy analyse in case of renovation

13. Overall (envelope) U value BOL CZ H LAT LIT POL ROM SLV SLO yes no f (A/V) 0,61 (A/V=1) f (A/V) 0,70 (A/V=1) compared reference building f (A/V), DD 0,55 (A/V=1)

14. Ventilation related heat losses BOL CZ H LAT LIT POL ROM SLV SLO min air required m3/hm3/per building air tightness <0,8 h-1 heatrecovery m3/hm3/per <4,5 h-1 nat. vent <0,6 low-E >2 h-1 > 8h/day 60% m3/perm3/per m3/m2h m3/perm3/per >10.000 m3 m3/hm3/perm3/hm3/perm3/hm3/per <2 h-1 >0.7 h-1 1200 m3/h 50%

15. Energy performance BOL CZ H LAT LIT POL ROM SLV SLO Calculationprocedure Limitations 46,4 46,4 kWh/m 3 (A/V=1) N=242dT=3.8oC 64.4 (A/V=0.5) kWh/m 2 simple method EN 832 0,7-0,75 W/m 3 K f(A/V)f(A/V)f(A/V) 37.4 37.4 kWh/m 3 nation. f(A/V), no. of stores W/m 3 K EN 832 f(A/V) dwellings 85 kWh/m 2 other 27,2 kWh/m 3 EN 832 f(A/V)

16. Renewable energy sources SC, PV BOL CZ H LAT LIT POL ROM SLV SLO SC PV --- 400 kWh/m2 6-9 m2 700 vac kWh/m2 4 m2 250-450 kWh/m2 8-3 m2

17. Lighting BOL CZ H LAT LIT POL ROM SLV SLO daylighting solarduration DF > 1.5% (buil. type) uniformityglare >90 min 1 st March >3h March – Sept between 8:00-16:00 hour DF min window/ floor area >1 h Dec > 3h March > 5 h Jun window/ floor area > 1:8 > 90 min 1st March – 13th Oct in 1/3 living area DF >1 h Dec > 3h March > 5 h Jun

18. ENERGY SUPPLY ENERGY SUPPLY Primary energy supply Primary energy supply Final energy supply Final energy supply Fuels, fuels switching Fuels, fuels switching Renewable energy sources Renewable energy sources Trends Trends Scenarious Scenarious

19. Primary energy supply BOL CZ H LAT LIT POL ROM SLV SLO PE (PJ) trend1995-2000 1726 - 5.5% fuels coal 38% nuclear 8% 159 -58% 1990- 2000 gas+oil 64% 378 gas+oil 60% nuclear +hydro 32% import 94% 4500 +7% 1995- 2000 coal 61% (-20%) 1980 -28% 1996- 2000 gas 40% 809 +2%1995-99 286 +17% 1990- 2000 gas 40%

20. Final energy consumption BOL CZ H LAT LIT POL ROM SLV SLO FE (PJ) Households(PJ) 1050 240 23% 240 23% Rank 2nd 1841068581205 216 t 216 t 40% 40% 127 41 32% 41 32% 1st 393 37% 393 37% 2nd 51 25% 51 25% 2nd 4000

21. Renewable energy BOL CZ H LAT LIT POL ROM SLV SLO RE in PE (PJ) woodpeatwaste213725 5% 1357%168% 32% house- holds 14%29%2%

22. Renewable electricity price BOL CZ H LAT LIT POL ROM SLV SLO 0,05 0,09 0,13 0,17 0,21 0,25 0,29 €/kWh wind biomass biogas PV 0,48 >10 kW <36 kW <36 kW 0,42-0,79f(kW) geother. 0,7-1.4residental 0,25-0.6grid

23. Sources of data Sources of data Publications Publications Institutions Institutions DD calculation procedures DD calculation procedures Meteorological datas Meteorological datas

24. Sources of data Sources of data Temperatures Temperatures average yearly average yearly average monthly average monthly extrems extrems Meteorological datas Meteorological datas

25. Sources of data Sources of data Temperatures Temperatures Solar radiation Solar radiation tables tables sunshine hours sunshine hours maps with zones maps with zones Meteorological datas Meteorological datas

26. Sources of data Sources of data Temperatures Temperatures Solar radiation Solar radiation Degree days Degree days heating DD heating DD number of heating number of heating days days cooling days (some) cooling days (some) Meteorological datas Meteorological datas

27. Sources of data Sources of data Temperatures Temperatures Solar radiation Solar radiation Degree days Degree days Test reference year Test reference year BOL CZ H LAT LIT POL ROM SLV SLO 1+5 44 Meteorological datas Meteorological datas

28. Sources of data Sources of data Temperatures Temperatures Solar radiation Solar radiation Degree days Degree days Test reference year Test reference year Trends Trends

29. Research in field of energy and environmental performance of the buildings History of building sector developments History of building sector developments Description of building stock Description of building stock Technical and economical status domestic construction sectors Technical and economical status domestic construction sectors Overiew of RTD programms Overiew of RTD programms Initiatives, support measurements and strategies Initiatives, support measurements and strategies Targets Targets Building sector financing Building sector financing

30. Research in field of energy and environmental performance of the buildings History of building sector developments History of building sector developments BOL CZ H LAT LIT POL ROM SLV SLO URBAN AREA PERIOD STRUCTUR E ENCLOSURESFUELHEATING SYSTEMS wallswindowswoodcoalfuel oil gasesterra- cotta stoves Local heatin g syste ms district heating 1930  1950  masonry +  reinforced concrete poles and floors burnt brick, 28 cm and 42 thick. double of wood. ofthe floor area  domi nant    domi nant  1950  1970 idem  burnt brick, 24 cm and 37.5 cm thick  blocks of autoclaved aerated concrete idem  domi nant     domi nant  1970  1990 idem and prefabricat ed reinforced concrete and thermal insulating reinforced concrete panels 30 cm. thick. idem 1950  1970 and simple windows with heat insulated glass     domi nant    dominan t 1990  2000 idem 1970  1990 idem 1970  1990 simple P.V.C. windows with heat insulated glass        dominan t

31. Research in field of energy and environmental performance of the buildings Description of building Description of building stock stock construction period construction period thermal insulation thermal insulation level level size & number size & number typology typology type of constructions type of constructions type of heating type of heating systems systems BOL CZ H LAT LIT POL ROM SLV SLO

32. Research in field of energy and environmental performance of the buildings Technical and economical status domestic construction sectors Technical and economical status domestic construction sectors construction works, capital repairs, maintenance construction works, capital repairs, maintenance ownership structure ownership structure market trends market trends BOL CZ H LAT LIT POL ROM SLV SLO

33. Research in field of energy and environmental performance of the buildings Initiatives, support measurements and strategies Initiatives, support measurements and strategies Energy Law (paragraphs fot building sector) Energy Law (paragraphs fot building sector) Executive regulations regard to RE Executive regulations regard to RE The Thermal modernisation act The Thermal modernisation act BOL CZ H LAT LIT POL ROM SLV SLO

34. Research in field of energy and environmental performance of the buildings BOL CZ H LAT LIT POL ROM SLV SLO Initiatives, support measurements and strategies - barriers Initiatives, support measurements and strategies - barriers

35. Research in field of energy and environmental performance of the buildings Targets Targets energy policy (2000 – 2008) energy policy (2000 – 2008) electricity supply short and long therm electricity supply short and long therm gas industry (2000 – 2008) gas industry (2000 – 2008) coal mining coal mining uranium mining (2000 – 2030) uranium mining (2000 – 2030) oil supply oil supply BOL CZ H LAT LIT POL ROM SLV SLO Targets Targets till 2005 25% decrease of heat demand for heating till 2005 25% decrease of heat demand for heating till 2010 35% decrease of heat demand for heating according to 2000 till 2010 35% decrease of heat demand for heating according to 2000

36. Status of the report BOL CZ H LAT LIT POL ROM SLV SLO Draft version prepared by all NAS-ENERBUILD partners Draft version prepared by all NAS-ENERBUILD partners Authors will be asked for autorization Authors will be asked for autorization Conclusions will be made Conclusions will be made