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Status of energy efficiency in Slovenia (measures for energy efficiency improvement in Buildings Stanje na področju učinkovite rabe energije v Sloveniji.

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Presentation on theme: "Status of energy efficiency in Slovenia (measures for energy efficiency improvement in Buildings Stanje na področju učinkovite rabe energije v Sloveniji."— Presentation transcript:

1 Status of energy efficiency in Slovenia (measures for energy efficiency improvement in Buildings Stanje na področju učinkovite rabe energije v Sloveniji (ukrepi zas izboljšanje energetske učinkovitosti v stavbah) Prof.dr. Peter Novak Hon. M. ASHRAE, IIR, REHVA Dean High School for Technoilogies and Systems Novo mesto 4. German - Slovene Seminar: P. Novak Energy efficiency 1

2 Introduction Regulations Application Subsidies Real acvtivities Some cases Conclusions 4. German - Slovene Seminar: P. Novak Energy efficiency2 Outline

3 Energy efficiency in Slovenia has long tradition from 1985 First regulation with air heat recovery obligation in AC come out in : New regulation on efficient use of energy in buildings has been published, based on EN 846 standard 2009: New regulation for efficient use of energy in buildings with EPBD requirements, including solar energy has been published, based on heating and cooling power limitation 2010: New regulation with inclusion of EPDB recast requirement has been introduced, based on energy used in buildings, based on EN ISO with Technical Guideline 4. German - Slovene Seminar: P. Novak Energy efficiency3 Introduction

4 Other accepted and published documents: 2008: National action plan for energy efficiency 2009: Rregulation on metodology for elaboration and draving up the buildings energy certificates 2009: Regulation on methodology and content of local energy plans 2009: Order on assurance of energy savings at end users 2010: Regulation on methodologies for determination of energy savings at end users. 2010: Regulation on cost division and calculations for heat in apartments and other buildings with more units 4. German - Slovene Seminar: P. Novak Energy efficiency4 Introduction -2

5 Regulation on efficient use of energy in buildings cover the all requirements of EPDB recast an limit the overall heat transmission coefficient and energy use in buildings for heating and cooling of apartment buildings and only for heating for public and commercial buildings. Integral part of regulation is also Technical guidelines with some 377 equations for the calculation procedure. In the regulation is also the obligation to use renowable energy in new buildings 4. German - Slovene Seminar: P. Novak Energy efficiency5 Regulations

6 Application of all this regulation in practice depend on the designer. There are many non official calculation codes for PCs, to give the designer possibilities to finish the calculation in time span available for the design. After the collapse of total building sector in Slovenia, the designer has very little jobs and regulations are more or less accepted, even many calculations and requirement are not real. On the other hand the design of passive houses, using the PHI rules and codes has been well accepted in practicised special for private investor. 4. German - Slovene Seminar: P. Novak Energy efficiency6 Applications

7 Slovenia EKOfund is supporting energy efficiency with public money. For 2012 the competition for the subsidies are published. Normally 25% of eligible cost are subsidized and this year first time exist the possibilities to combine subsidies and credit for one investment together. For new and old buildings is available For electric vehicles is available For public vehicles an CNG and biogas For crediting of energy efficiency and environment improvement of businesses with low interest rate three month EURIBOR + 1,5%, maximum is 80% of investment is provided and for citizens 5, German - Slovene Seminar: P. Novak Energy efficiency7 Subsidies and credits

8 In the last year the activities in building sector has been minimized, because of economic crises. Only activities has bee on private housing, many of them decided to build passive type of building. In public sector some reconstruction of the schools and kindergarten with EU help was finished. In preparation are the renovations in hospitals (Celje, Koper) and in some schools. In last year many buildings owner invest in PV system (good financial support, installed capacity cca 45 MW) 4. German - Slovene Seminar: P. Novak Energy efficiency8 Real activities

9 Pasive house Škvorc, Repnje 14, 1217 Vodice Heated area : 283 m2 Energy according PHPP: 13 kWh/(m2a) Air tightnes: 0,4 h-1 Year build: 2010 System used Light wooden construction Builder: EKO PRODUKT d.o.o., Trpinčeva ulica Ljubljana 4. German - Slovene Seminar: P. Novak Energy efficiency9 Some passive house cases

10 4. German - Slovene Seminar: P. Novak Energy efficiency10 Passive house Petkovšek, Čevljarska ulica, 1292 Ig pri Ljubljani Heated area: 133 m2 Energy according PHPP: 10 kWh/(m2a) Airtightness : 0,42 h-1 Year build: 2009 System used: Light prefabricated walls Builder: LUMAR IG d.o.o., Limbuška cesta 32 a, 2000 Maribor FIRST ENERGY POSITIVE HOUSE IN SLOVENIA

11 Some passive house cases 4. German - Slovene Seminar: P. Novak Energy efficiency11 Pasive houseKepec, Hocevje 96, 1301 Krka Heated area: 180 m2 Energy accordingPHPP: 15 kWh/(m2a) Airtightnes : 0,33 h-1 Year build: 2009 System used<. Massivee walls with YTONG, thermal Isolation roock wool Member od consortium Passive house XELLA POROBETON SI, d.o.o., Loke pri Zagorju 64, 1412 Kisovec

12 Some passive house cases 4. German - Slovene Seminar: P. Novak Energy efficiency12 Passive house Kozin, Kovačeva ulica 17, 1000 Ljubljana Heated area: 186 m 2 Energy according PHPP: 13 kWh/(m 2 a) Airtightnes : 0,38 h-1 Year build: 2010 System used: Light prefabricated panels: LUMAR IG d.o.o., Limbuška cesta 32 a, 2000 Maribor

13 4. German - Slovene Seminar: P. Novak Energy efficiency13 LUMAR Passive Houses

14 Some passive house cases 4. German - Slovene Seminar: P. Novak Energy efficiency14 Passive house Šiler, Zgornje Bitnje 346, 4209 Žabnica Heated area: 144 m2 Energy according PHPP: 14 kWh/(m2a) Airtightness : 0,58 h-1 Year build: 2010 System used : Light prefabricated panels Builder : LUMAR IG d.o.o., Limbuška cesta 32 a, 2000 Maribor

15 Energy efficiency in private houses in Slovenia is under way to passive house quality Refurbishment of public or commercial building is a little behind, because of economic crisis Technology for energy efficiency is well known and present Design knowledge is good, except in the cases of public procurement. Lowest price kill the quality. 4. German - Slovene Seminar: P. Novak Energy efficiency15 Conclusions

16 If you have any question, please dont hesitate to ask me now! 4. German - Slovene Seminar: P. Novak Energy efficiency16 Thanks for your attention!


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