development of residential energy consumption in czech republic and austria wolfgang streicher

Institut für Wärmetechnik

TU GrazInstitut für Wärmetechnik

TU Graz

Development of residential energy consumption

In Czech Republic and Austria

Wolfgang StreicherInstitut für Wärmetechnik, TU Graz

Inffeldgasse 25BA-8010 Graz

Tel: 0316.873-7306E-Mail: [email protected]

http://www.iwt.tugraz.at



TU Graz

Total number of Buildings and Dwellings in Austria

Quelle: Statistik Austria, (2005)

0

500.000

1.000.000

1.500.000

2.000.000

2.500.000

3.000.000

3.500.000

4.000.000

Buildings 2.046.712 1.557.420 142.351 61.196 3.488 282.257

Dwellings 3.863.262 1.809.380 791.584 1.134.782 21.663 105.853

Total 1 or 2

dwellings 3 to 10

dwellings 11 or more dwellings

For associations

Non-residential buildings



TU Graz

Number of non-residential buildings and their dwellings in Austria


0

10.000

20.000

30.000

40.000

50.000

60.000

70.000

80.000

90.000

100.000

Buildings 35.837 32.235 33.065 3.849 71.811 15.393 90.067

Dwellings 32.071 19.514 21.522 1.374 16.028 4.603 10.741

Hotel or similar building

Office buildingBuilding of shops

and supermarkets

Builindgs of transportationor

media

Industrial or storage builing

Cultural, entertainment,

educational, health Other building



TU Graz

Number of Buildings and Dwellings in Austria

3.000

3.050

3.100

3.150

3.200

3.250

3.300

3.350

Zah

l d

er

Geb

äu

de [

-]

Haushalte

Wohnungen

Source: www.statistik.austria.at, 15.03.2005




TU Graz

Housing and dwelling stock

• Housing and dwelling stock is about the same size in Austria and the Czech Republic.

• 4,3 Million dwellings in the Czech Republic• 3.8 million dwellings in Austria

0

1 000 000

2 000 000

3 000 000

4 000 000

5 000 000

1961 1971 1981 1991 2001

Number of houses, AustriaNumber of dwellings, AustriaNumber of houses, Czech RepublicNumber of dwellings, Czech Republic

Year



TU Graz

Heat delivery systems in Austrian households


0,000,100,200,300,400,500,600,700,800,901,00

1980 1985 1990 1995 2002

Year

Sh

are

[-]

Unknown

Central heating,district heatingHeating systemcovering one floorSingle stove



TU Graz

Heat delivery systems in Austrian dwellings per building type

Source: Statistik Austria, (2005)

0%10%20%30%40%50%60%70%80%90%

100%

with 1 or 2 dwellings

3 to 10 dwellings 11 or modedwellings

for associa-tions Non residentialbuildings

Type of building

To

tal n

um

be

r o

f d

we

llin

gs

Single stoves

One stove per dwelling/floor

Cebtral heating

Combined heat and power

District heating



TU Graz

Heat delivery systems in Austrian dwellings per building age, all buildings


0

200.000

400.000

600.000

800.000

1.000.000

1.200.000

Before1919

1919 to1944

1945 to1960

1961 to1980

1981 to1990

1991 orlater or

unknown

Year of errection

To

tal n

um

be

r o

f d

we

llin

gs

Single stovesOne stove per dwelling/floorCebtral heatingCombined heat and powerDistrict heating



TU Graz

Heat delivery systems in Austrian dwellings per building age, buildings with 3 – 10 flats


0

20.000

40.000

60.000

80.000

100.000

120.000

140.000

160.000

180.000

Before1919

1919 to1944

1945 to1960

1961 to1980

1981 to1990

1991 orlater or

unknown

Year of errection

Nu

mb

er

of

dw

elli

ng

s in

bu

ilin

gs

wit

h 3

-10

fla

ts




TU Graz

Heat delivery systems in Austrian dwellings per building age, buildings with 11 or more flats


0

50.000

100.000

150.000

200.000

250.000

300.000

350.000

400.000

Before1919

1919 to1944

1945 to1960

1961 to1980

1981 to1990

1991 orlater or

unknown

Year of errection

Nu

mb

er

of

dw

elli

ng

s

in b

uili

nd

gs

wit

h 1

1 o

r m

ore

fla

ts




TU Graz

Heat delivery systems in Austrian dwellings per building age, non-residential buildings


0

5.000

10.000

15.000

20.000

25.000

30.000

Before1919

1919 to1944

1945 to1960

1961 to1980

1981 to1990

1991 orlater or

unknown

Year of errection

Nu

mb

er

of

dw

elli

ng

s

in n

on

-re

sid

en

tia

l bu

ildin

gs




TU Graz

Energy carriers in Austrian households


0,000,100,200,300,400,500,600,700,800,901,00

1980 1985 1990 1995 2002

Year

Sh

are

[-]

District heat, other ,unknownElectricity

Oil

Natural gas

Cole, coke, briquets

Wood



TU Graz

Energy demand of buildings



TU Graz

Space heating energy demand buildings in Austria

Source: own calculations

0,0

5000,0

10000,0

15000,0

20000,0

25000,0

30000,0

1 dwelling 2 dwellings 3 to 9dwellings

10 or moredwellings

unknown

En

erg

y d

em

an

d in

kW

h/a



TU Graz

Specific space heating energy demand buildings in Austria


239,8218,2

119,8 128,0

0,0

50,0

100,0

150,0

200,0

250,0

300,0

1 dwelling 2 dwellings 3 to 9dwellings

10 or moredwellings

Sp

ec

. en

erg

y d

em

an

d in

kW

h/m

²a



TU Graz

Specific space heating energy demand of single (SFH) and multi family buildings (MFH-K : small, MFH-G

great) in decpendence of year of errection in Austria

Quelle: Jungmeier, et al. (1996)



TU Graz

Type of fuel used in all Austrian dwellings

Source: Statistic Austria

0

200.000

400.000

600.000

800.000

1.000.000

1.200.000

Before1919

1919 to1944

1945 to1960

1961to1980

1981 to1990

1991 orlater or not

known Age of construction

Nu

mb

er

of

dw

elli

ng

s, t

ota

l

Other fuel (incl. alternative heat production)Wood chips, saw dust (central house-heating) GasOilElektricityCole, coke, briquetWoodDistrict Heating, CHP



TU Graz

Type of fuel used in Austrian multi famly buildings with 3 – 10 dwellings


0

50.000

100.000

150.000

200.000

250.000

Before1919

1919 to1944

1945 to1960

1961to1980

1981 to1990

1991 orlater or not

known Age of construction

Nu

mb

er

of

dw

elli

ng

s in

b

uild

ing

s w

ith

3-1

0 f

lats

Other fuel (incl. alternative heat production)Wood chips, saw dust (central house-heating) GasOilElektricityCole, coke, briquetWoodDistrict Heating, CHP



TU Graz

CO2-emissions from space heating of dwellings in Austria


0

500

1000

1500

2000

2500

3000

CO

2 e

mis

sio

ns

[kt/

a]

SFH 669 467 967 2.460 842 655

MFH-S 330 160 199 368 138 162

MFH-G 358 101 191 685 148 124

NRB 55 12 24 62 18 8

before19191919 - 1945

1945 - 1960

1961 - 1980

1981 - 1990

since 1991



TU Graz

CO2-emissions from space heating of dwellings in Austria


0

10

20

30

40

50

60

CO

2 E

mis

sio

ns

[kg

/m

²a]

SFH 27 39 48 43 28 22

MFH-S 29 30 34 31 23 17

MFH-G 26 27 31 27 20 15

NRB 25 0 31 28 20 15

before19191919 - 1945

1945 - 1960

1961 - 1980

1981 - 1990

since 1991



TU Graz

Austrian CO2-equivalent emissions reduction goal for the heating energy demand of buildings

Quelle: BMLFUW (2005)



TU Graz

CO2-equivalent emissions from the residential sector (Raumwärme Haushalte) and other small

use in Austria

Quelle: BMLFUW (2005)



TU Graz

Trendscenario of thermal renovation and fuel switch of all Austrian dwellings (basic data from

Statistik Austria, 2001)

0

2

4

6

8

10

12

2001 2006 2011 2016

Mio

t C

O2

1%/a

2%/a

3%/a

4%/a

5%/a

Sanierungsquote(incl. 20% Wechsel von Öl auf Biomasse)




TU Graz

Trendscenario of thermal renovation and fuel switch for Austrian single family houses (basic data from

Statistik Austria, 2001)

0

2

4

6

8

10

12

2001 2006 2011 2016

Mio

t C

O2

1%/a

2%/a

3%/a

4%/a

5%/a

Sanierungsquote(incl. 20% Wechsel von Öl auf Biomasse)




TU Graz

Buildings with renovation measures by owner


0

500.000

1.000.000

1.500.000

2.000.000

2.500.000

3.000.000

Pri

vate

pe

rso

ns

Fe

de

ral

Pro

vin

cio

na

l

Mu

nic

ipa

l

Oth

er

pu

blic

bo

die

s

No

n-p

rofi

ass

oci

atti

on

s

Oth

er

com

pa

nie

s(e

.g.:

AG

, Ba

nk,

ltd.)

Oth

er

ow

ne

rs(e

.g.a

soci

atio

ns)

Fo

reig

ne

rs a

ssi

ng

le o

wn

ers

Fo

reig

ne

rs fr

om

EU

-co

un

trie

s a

so

wn

ers

Nu

mb

er

of

dw

elli

ng

s

1-2 dwellings 3-4 dwellings Non-residential buildings

Austrians



TU Graz

Buildings with renovation measures by owner

0

100.000

200.000

300.000

400.000

500.000

600.000

700.000

800.000

01 02 03 04 05 06 07 08 09 10 11 12 13 14

Nu

mb

er

od

dw

ell

ing

s

Non-residential buildings3-4 dwellings1-2 dwellings

01… I nstallation of lifts02… Renew of roof03… Renewingof windows in most of the building04… Connection to fresh water network 05… Connection to gas network 06… Connection to waste water network 07… Connection to district heating system 08… I nstallation of a central heating system i the whole building 09... I nstallation of "alternative" heat delivery systems 10... Renovation of facade without insulation 11... Renovation of facade with insulation 12... Other heat demand reduction measures 13... I nstallation of water and sanitary equipment 14... I nstallation of decentralized waste water treatment plant

Heat demand reduction measures

Change of energy carrier


development of residential energy consumption in czech republic and austria wolfgang streicher

Documents