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Overview of the NAS regulations,building sector and Overview of the NAS regulations,building sector and research activities research activities

Sašo MedvedSašo MedvedUniversity of LjubljanaUniversity of LjubljanaSloveniaSlovenia

Technical University of Budapest, HungaryTechnical University of Budapest, HungaryIPA SA, BulgariaIPA SA, Bulgaria

Brno Univertity of Technology, Chech RepublicBrno Univertity of Technology, Chech RepublicEnEffect Center for Energy Efficiency, BulgariaEnEffect Center for Energy Efficiency, Bulgaria

Czech Technical University in ProgueCzech Technical University in ProgueIntertermo CCConcept Ltd, RomaniaIntertermo CCConcept Ltd, Romania

Warsaw University of Technology, PolandWarsaw University of Technology, PolandLatvian Academy of Science, LatviaLatvian Academy of Science, Latvia

Slovak University of Technology, Slovak RepublicSlovak University of Technology, Slovak RepublicBlack Sea Regional Energy Centre and Technical University of SofiaBlack Sea Regional Energy Centre and Technical University of Sofia

Institut of Heating and Sanitary Technology, PolandInstitut of Heating and Sanitary Technology, PolandEcofys, PolandEcofys, Poland

Technical University pf Cluj-Napoca, RomaniaTechnical University pf Cluj-Napoca, RomaniaZRMK Technological Building & C.E. Institut, SloveniaZRMK Technological Building & C.E. Institut, Slovenia

University of Ljubljana, SloveniaUniversity of Ljubljana, SloveniaLithuanian Energy Institute, LithuaniaLithuanian Energy Institute, Lithuania

Report prepared byReport prepared by

PurposePurpose

To examine the characteristics of the expanded EU To examine the characteristics of the expanded EU market, technological, economic, social and market, technological, economic, social and educational dimensions, as it relates to building energy educational dimensions, as it relates to building energy researchresearch

To identify potential target market sectors on the basis To identify potential target market sectors on the basis of potential benefitsof potential benefits

Identify the most appropriate technologies for NAS Identify the most appropriate technologies for NAS marketsmarkets

Identify and implement coherent technology transfer Identify and implement coherent technology transfer and promotion strategies appropriate to NAS market and promotion strategies appropriate to NAS market needsneeds

Building Building thermal insulation and thermal insulation and energy performance energy performance regulation regulation Energy supplyEnergy supply survaysurvay Meteorological datasMeteorological datas and available databases and available databases Building sector development and RTD programs Building sector development and RTD programs overviewoverview Status of research activities and technologiesStatus of research activities and technologies

ChaptersChapters

Heat loss calculation - methodologyHeat loss calculation - methodology

BOL CZ H LAT LIT POL ROM SLV SLO

ENENEN ISOEN ISO

NationalNational

Heat loss coeficient, ground, thermal bridges, windowsHeat loss coeficient, ground, thermal bridges, windows

Heat losses coeficientsHeat losses coeficients


0,20,2

0,40,4

0,80,8

1,21,2

1,61,6

2,02,0

2,42,4

roofsroofs

wallswalls

windowswindows



0,20,2

0,40,4

0,80,8

1,21,2

1,61,6

2,02,0

2,42,4

roofsroofs

wallswalls

windowswindows

state-of-the-art state-of-the-art



0,20,2

0,40,4

0,80,8

1,21,2

1,61,6

2,02,0

2,42,4

roofsroofs

wallswalls

windowswindowsgreat potentialgreat potential



0,20,2

0,40,4

0,80,8

1,21,2

1,61,6

2,02,0

2,42,4

roofsroofs

wallswalls

windowswindows

included in overall envelope Uincluded in overall envelope U



0,20,2

0,40,4

0,80,8

1,21,2

1,61,6

2,02,0

2,42,4

roofsroofs

wallswalls

windowswindows

f (f (T)T)

compared with fictive building with same compared with fictive building with same sizesize



0,20,2

0,40,4

0,80,8

1,21,2

1,61,6

2,02,0

2,42,4

roofsroofs

wallswalls

windowswindows

economy analyse in case of renovationeconomy analyse in case of renovation

Overall (envelope) U valueOverall (envelope) U value


yesyes

nono

f (A/V)f (A/V)

0,61 (A/V=1)0,61 (A/V=1)

f (A/V)f (A/V)

0,70 (A/V=1)0,70 (A/V=1)

compared compared reference reference

buildingbuilding

f (A/V), DDf (A/V), DD

0,55 (A/V=1)0,55 (A/V=1)

Ventilation related heat lossesVentilation related heat losses


min air min air requiredrequired m3/hm3/h

m3/perm3/per

building air building air tightnesstightness <0,8 h-1<0,8 h-1

heat heat recoveryrecovery

m3/hm3/h

m3/perm3/per

<4,5 h-1 <4,5 h-1 nat. vent nat. vent

<0,6 low-E<0,6 low-E

>2 h-1 >2 h-1 > > 8h/day 8h/day 60%60%

m3/perm3/per m3/perm3/per

m3/m2hm3/m2h

m3/perm3/per m3/perm3/per

>10.000 m3>10.000 m3

m3/hm3/h

m3/perm3/per

m3/hm3/h

m3/perm3/per

m3/hm3/h

m3/perm3/per

<2 h-1<2 h-1

>0.7 h-1 >0.7 h-1 1200 m3/h 1200 m3/h 50%50%

Energy performanceEnergy performance


Calculation Calculation procedureprocedure

LimitationsLimitations 46,446,4

kWh/mkWh/m33 (A/V=1)(A/V=1)

N=242dN=242d

T=3.8oCT=3.8oC

64.4 64.4 (A/V=0.5) (A/V=0.5) kWh/mkWh/m22

simple simple method method

EN 832EN 832

EN 832EN 832

0,7-0,750,7-0,75

W/mW/m33K K

f(A/V)f(A/V) f(A/V)f(A/V) f(A/V)f(A/V)

37.437.4

kWh/mkWh/m33

nation.nation.

f(A/V), f(A/V), no. of no. of storesstores

W/mW/m33K K

EN 832EN 832

f(A/V)f(A/V)

dwellings dwellings 85 85

kWh/mkWh/m22

otherother

27,2 27,2 kWh/mkWh/m33

EN 832EN 832

f(A/V)f(A/V)

Renewable energy sources SC, PVRenewable energy sources SC, PV


SCSC

PVPV

-- -- --

400 400 kWh/m2kWh/m2

6-9 m26-9 m2

700 vac 700 vac kWh/m2 kWh/m2

4 m24 m2

250-450 250-450 kWh/m2 kWh/m2

8-3 m28-3 m2

LightingLighting


daylightingdaylighting

solar solar durationduration

DF > 1.5% DF > 1.5% (buil. (buil. type)type)

uniformityuniformity

glareglare

>90 min >90 min 11stst March March

>3h >3h March – March – SeptSept

between between 8:00-16:00 8:00-16:00 hourhour

DFDFmin min window/ window/ floor floor area area

>1 h >1 h Dec Dec > 3h > 3h March March > 5 h > 5 h JunJun

window/ window/ floor floor area area > 1:8> 1:8

> 90 min > 90 min 1st March 1st March – 13th Oct– 13th Oct

in 1/3 in 1/3 living living areaarea

DFDF

>1 h >1 h Dec Dec > 3h > 3h March March > 5 h > 5 h JunJun

ENERGY SUPPLYENERGY SUPPLY

Primary energy supplyPrimary energy supply Final energy supplyFinal energy supply Fuels, fuels switchingFuels, fuels switching Renewable energy sources Renewable energy sources TrendsTrends ScenariousScenarious

Primary energy supplyPrimary energy supply


PE (PJ)PE (PJ)

trendtrend1995-20001995-2000

1726 1726

- 5.5% - 5.5%

fuelsfuels coal coal 38%38%

nuclear nuclear

8%8%

159 159

-58%58%

1990-1990-

20002000 gas+oil gas+oil 64%64%

378378

gas+oil gas+oil 60%60%

nuclear nuclear +hydro +hydro 32%32%

import 94%import 94%

4500 4500

+7%+7%

1995-1995-

20002000 coal coal 61% 61% (-20%) (-20%)

1980 1980

-28%-28%

1996-1996-

20002000 gas gas 40% 40%

809 809

+2%+2%

1995-991995-99

286 286

+17%+17%

1990-1990-

20002000 gas gas 40% 40%

Final energy consumptionFinal energy consumption


FE (PJ)FE (PJ)

HouseholdsHouseholds(PJ)(PJ)

1050 1050

240 240 23% 23%

RankRank 2nd2nd

184184 1068 1068 581 581 205 205

216 t 216 t

40% 40%

127127

41 41 32% 32%

1st1st

393 393 37% 37%

2nd2nd

51 51 25% 25%

2nd2nd

4000 4000

Renewable energyRenewable energy


RE in PE (PJ)RE in PE (PJ)woodwoodpeatpeatwastewaste

2121 37 37 2525

5% 5%

135 135

7%7%

1616

8%8%

32% 32% house-house-

holdsholds

14% 14% 29% 29% 2% 2%

Renewable electricity priceRenewable electricity price


0,050,05

0,090,09

0,130,13

0,170,17

0,210,21

0,250,25

0,290,29€€/kWh/kWh

windwindbiomassbiomassbiogasbiogasPVPV

0,480,48>10 kW>10 kW

<36 kW<36 kW

0,42-0,790,42-0,79f(kW)f(kW)

geother.geother.

0,7-1.40,7-1.4residentalresidental

0,25-0.60,25-0.6gridgrid

Sources of dataSources of data PublicationsPublications Institutions Institutions DD calculation proceduresDD calculation procedures

Meteorological datasMeteorological datas

Sources of dataSources of data TemperaturesTemperatures

average yearlyaverage yearly average monthlyaverage monthly extremsextrems


Sources of dataSources of data TemperaturesTemperatures Solar radiationSolar radiation

tables tables sunshine hourssunshine hours maps with zonesmaps with zones


Sources of dataSources of data TemperaturesTemperatures Solar radiationSolar radiation Degree daysDegree days

heating DDheating DD number of heating number of heating

daysdays cooling days (some)cooling days (some)


Sources of dataSources of data TemperaturesTemperatures Solar radiationSolar radiation Degree daysDegree days Test reference yearTest reference year


1+51+5 4444



Sources of dataSources of data TemperaturesTemperatures Solar radiationSolar radiation Degree daysDegree days Test reference yearTest reference year TrendsTrends

Research in field of energy and environmental Research in field of energy and environmental performance of the buildingsperformance of the buildings

History of building sector developmentsHistory of building sector developments Description of building stockDescription 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 strategiesInitiatives, support measurements and strategies TargetsTargets Building sector financingBuilding sector financing


History of building sector developmentsHistory of building sector developments

BOL CZ H LAT LIT POL BOL CZ H LAT LIT POL ROMROM SLV SLO SLV SLO

PERIOD

STRUCT

URE

ENCLOSURES FUEL HEATING SYSTEMS

walls windows

wood

coal fuel

oil

gases

terra-

cotta

stoves

Local

heating systems

district

heating1930

1950

masonry+reinforced concretepoles and floors

burnt brick,28 cm and 42 thick.

double of wood.ofthe floor area

dominan

t

dominant

1950 1970

idem

burnt brick, 24 cm and 37.5 cm thick blocks of autoclaved aerated concrete

idem

dominant

dominant

1970 1990

idemand prefabricated reinforced concrete

and thermal

insulating reinforced concrete panels

30 cm. thick.

idem1950 1970and

simple windows with heat insulated

glass

dominant

dominant1990

2000

idem 1970 1990

idem1970 1990

simple P.V.C.

windows with heat insulated

glass

dominant


Description of building Description of building

stockstock construction periodconstruction period thermal insulationthermal insulation

levellevel size & numbersize & number typologytypology type of constructionstype of constructions type of heating type of heating

systems systems

BOL CZ H LAT LIT POL ROM SLV BOL CZ H LAT LIT POL ROM SLV SLOSLO


Technical and economical status domestic construction sectorsTechnical and economical status domestic construction sectors construction works, capital repairs, maintenanceconstruction works, capital repairs, maintenance ownership structureownership structure market trends market trends

BOL BOL CZ CZ H LAT LIT POL ROM SLV SLO H LAT LIT POL ROM SLV SLO


Initiatives, support measurements and strategiesInitiatives, support measurements and strategies Energy Law (paragraphs fot building sector)Energy Law (paragraphs fot building sector) Executive regulations regard to REExecutive regulations regard to RE The Thermal modernisation act The Thermal modernisation act

BOL CZ H LAT LIT BOL CZ H LAT LIT POLPOL ROM SLV SLO ROM SLV SLO


BOL CZBOL CZ H LAT LIT POL ROM SLV H LAT LIT POL ROM SLV SLOSLO

ENERGY SAVING MEASURES - IMPLEMENTATION BARRIERS

2,6% 3,9% 4,2%11,5% 12,4% 13,2% 13,4%

20,5%

71,1%

0%

10%

20%

30%

40%

50%

60%

70%

80%lo

w e

nerg

ypr

ice

bad

rela

tions

hop

with

man

agem

ent

othe

r

owne

rshi

ppr

oble

ms

(priv

atis

atio

n,...

)

lack

of t

ime

long

pay

-ba

ck p

erio

d

diss

agre

eme

nt o

f ow

ners

lack

of

prof

essi

onal

info

rmat

ion

lack

of

mon

ey

Initiatives, support measurements and strategies - barriersInitiatives, support measurements and strategies - barriers


TargetsTargets energy policy (2000 – 2008)energy policy (2000 – 2008) electricity supply short and long thermelectricity supply short and long therm gas industry (2000 – 2008)gas industry (2000 – 2008) coal miningcoal mining uranium mining (2000 – 2030)uranium mining (2000 – 2030) oil supplyoil supply

BOL BOL CZCZ H LAT H LAT LITLIT POL ROM SLV SLO POL ROM SLV SLO

Targets Targets till 2005 25% decrease of heat demand for heatingtill 2005 25% decrease of heat demand for heating till 2010 35% decrease of heat demand for heating according till 2010 35% decrease of heat demand for heating according

to 2000to 2000

Status of the reportStatus of the report

BOL CZ H LAT LIT POL ROM SLV SLOBOL CZ H LAT LIT POL ROM SLV SLO

Draft version prepared by all NAS-ENERBUILD partnersDraft version prepared by all NAS-ENERBUILD partners Authors will be asked for autorizationAuthors will be asked for autorization Conclusions will be madeConclusions will be made

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