status of energy efficiency in slovenia (measures for energy efficiency improvement in buildings...

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 NovakHon. M. ASHRAE, IIR, REHVA

Dean High School for Technoilogies and SystemsNovo mesto

4. German - Slovene Seminar: P. Novak Energy efficiency 1


Introduction Regulations Application Subsidies Real acvtivities Some cases Conclusions

Outline


Energy efficiency in Slovenia has long tradition from 1985 First regulation with air heat recovery obligation in AC

come out in 1987 2002: 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 13790 with Technical Guideline

Introduction


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

Introduction -2


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

Regulations


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.

Applications


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 10.000.000 €For electric vehicles is available 500.000 €For public vehicles an CNG and biogas 300.000 €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 25.000.000 € and for citizens 5,000.000 €

Subsidies and credits


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)

Real activities


Pasive house Škvorc, Repnje 14, 1217 VodiceHeated area : 283 m2Energy according PHPP: 13 kWh/(m2a)Air tightnes: 0,4 h-1Year build: 2010System usedLight wooden constructionBuilder:EKO PRODUKT d.o.o., Trpinčeva ulica 391000 Ljubljana

Some passive house cases



Passive house Petkovšek, Čevljarska ulica, 1292 Ig pri LjubljaniHeated area: 133 m2Energy according PHPP: 10 kWh/(m2a)Airtightness : 0,42 h-1Year build: 2009System used:Light prefabricated wallsBuilder:LUMAR IG d.o.o., Limbuška cesta 32 a, 2000 MariborFIRST ENERGY POSITIVE HOUSE IN SLOVENIA



Pasive houseKepec, Hocevje 96 , 1301 KrkaHeated area:180 m2Energy accordingPHPP: 15 kWh/(m2a)Airtightnes : 0,33 h-1Year build: 2009System used<.Massivee walls with YTONG, thermal Isolation roock woolMember od consortium Passive houseXELLA POROBETON SI, d.o.o., Loke pri Zagorju64, 1412 Kisovec



Passive house Kozin, Kovačeva ulica 17, 1000 LjubljanaHeated area: 186 m2

Energy according PHPP:13 kWh/(m2a)Airtightnes : 0,38 h-1Year build: 2010System used:Light prefabricated panels:LUMAR IG d.o.o., Limbuška cesta 32 a, 2000 Maribor


LUMAR Passive Houses



Passive house Šiler, Zgornje Bitnje 346, 4209 ŽabnicaHeated area: 144 m2Energy according PHPP: 14 kWh/(m2a)Airtightness : 0,58 h-1Year build: 2010System used :Light prefabricated panelsBuilder :LUMAR IG d.o.o., Limbuška cesta 32 a, 2000Maribor


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.

Conclusions


If you have any question, please don‘t hesitate to ask me now!

Thanks for your attention!

status of energy efficiency in slovenia (measures for energy efficiency improvement in buildings...

Documents

energy use

solar energy

renowable energy

buildings energy certificates

novak energy efficiency9

energy efficiency improvement

crediting of energy

status of energy efficiency