do “green”, residential properties exist in wroclaw’s county?
DESCRIPTION
Do “green”, residential properties exist in Wroclaw’s county?. Malgorzata Sliczna Department of Ecological Economics Wroclaw University of Economics E-mail: [email protected]. ERES 2013, 3-6 July 2013, Vienna. The structure of the presentation :. Introduction - PowerPoint PPT PresentationTRANSCRIPT
Do “green”, residential properties exist in Wroclaw’s county?
Malgorzata SlicznaDepartment of Ecological Economics
Wroclaw University of EconomicsE-mail: [email protected]
ERES 2013, 3-6 July 2013, Vienna
The structure of the presentation:
1.Introduction
2.Research methodology
3.Results and findings
4.Future directions of the development
5.Conclusions
http://supermozg.gazeta.pl/supermozg/1,91628,8267925,Ekodomy.html
http://supermozg.gazeta.pl/supermozg/1,91628,8267925,Ekodomy.html
Introduction
• Energy Performance of Buildings
Directive [Directive 2010/31/EU]
• subsidies for investors in „green
buidling”, environmental friendly solutions
• Strategy for the development of Lower
Silesia Voivodeship 2020 (Strategia Rozwoju
Województwa Dolnośląskiego 2020)
Research methodology
Wroclaw County:
Area: 1118 km2Cities 3Villages 231
The research studies statistical and real estate data.Research period: year 2011 and 2012
Source of data
District Inspector of Building Control for Wroclaw’s
CountyNumer of energy
efficient buildings (based on
EPC)
Cadastre office of Wroclaw’s
County.
Number of sold buildings and their
price
Research methodology
• The paper closely examines put to use, “green” residential properties in the years 2011-2012.
• The number of researched estates is 2205, all from Wroclaw County (Wroclaw city not included)
Research methodologyTotal Wroclaw County
Number of „put to use” buidlings in year
2011
Number of” put to use” buidlings
in year 2012
2205One-dwelling buildings 989 1216
240Two and more dwelling buildings 75 165
5Residences for communities 4 1
2450 TOTAL 1068 1382
Energy efficient residential buildings
PE: numerical indicator of primary energy use expressed in kWh/m2 per year
„Primary energy”: energy from renewable and non-renewable sources which has not undergone any conversion or transformation process
Energy efficient residential buildings
• Criterion PE* ≤ 100 kWh/m2*a
Reason: Polish average building145 kWh/m2*a
382 buildings were identified*Primary energy
Energy efficient residential buildings in Wroclaw CountyPE<15; 0,52%15≤PE<30; 2,88%
30≤PE<50; 7,85%
50≤PE<70; 26,18%
70≤PE<85; 22,77%
85≤PE<100; 39,79 %
[Source: self elaboration , n=382, years 2011&2012, Wroclaw County]
PE Primary energy [kWh/m2*a]
Energy type used in the buildings in Wroclaw County
gas coal electric energy
biomass solar heating oil0
20
40
60
80
100
120
140
86
34 38
112
36
11
94
38 44
116
28
2
Series1 Series2Year 2011 Year 2012
[Source: self elaboration , n=382, years 2011&2012, Wroclaw County, multiple anwsers]
Relation between PE and Energy performance (FE)
year 2011 year 2012
105 102
88 87PE>FE
PE<FE
[Source: self elaboration , n=382, years 2011&2012, Wroclaw County]
coal heaters
oil heaters
gas heater
biomass burners
fireplaces
heat recovery ventilation systems
fotovoltaic moduls
solar panels
good isolation (wall U<0,2
heat pumps
16.23%2.36%
46.34%13.87%
45.81%19.37%
0.00%16.23%
6.81%19.11%
Procent of buildings with installed eco-solutions
[Source: self elaboration , n=382, years 2011&2012, Wroclaw county]
Number of solutions installed in one building
1 2 3 4 5
133
156
67
170
Number of solutions installed in 1 building
Num
ber o
f bui
ldin
gs w
ith th
e co
mbi
natio
n of
sol
ution
s
[Source: self elaboration , n=373, years 2011&2012, Wroclaw County]
Number of buildings with the combination of eco-solutions
gas heaters + fireplace
gas heaters + solar panels
biomass heaters + hrvc
gas heaters + hrvc
heat pump + solar panels
heat pump + hrvc
43
23
19
17
3
13
56
16
27
26
1
8
year 2012year 2011
Number of buildings*hrvc- heat recovery ventilation system
[Source: self elaboration , n=373, years 2011&2012, Wroclaw County]
Number of sold buildings
• 8 buildings in the year 2011• 9 buildings in the year 2012
http://supermozg.gazeta.pl/supermozg/1,91628,8267925,Ekodomy.html
http://supermozg.gazeta.pl/supermozg/1,91628,8267925,Ekodomy.html
Obstacles
• Lack of data about all aspects of the buildings, only data on energy effectivness in new buildings is avaluable hence not „green” but energy efficient buildings were researched
• EPC’s may not be correct in all cases
Conclusions
• Energy Performance Certificates (EPCs) are not verified • Most of the energy efficient buildings are build by the
owner• Those buildings are not popular in Wroclaw county (17%
with PE<100 kWh/m2 per year; 1,86% with PE<50 kWh/m2 per year)
• The most popular solutions: biomass burners (fireplaces), solar panels
Source: edgegoodrich.co.uk
Conclusions
• More research on the correctness od EPCs is necessary, • There should be more information evaluable on
technical issues of the buidlings, for professionals and researchers
Source: edgegoodrich.co.uk
Future research
• Quantify the energy efficient buildings in city of Wroclaw• Research on the value of those buildings in comparison
to traditional real estate• Determine the added value of environment friendly
solutions
Source: edgegoodrich.co.uk
References• (2012). Strategia Rozowju Powiatu Wrocławskiego na lata 2012-2020. Wrocław.• Directive 2010/31/EU of the European Parliament and of the Council of 19 May 2010 on the energy
performance of buildings - LexUriServ.do. (2013). Retrieved from http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:153:0013:0035:EN:PDF
• Główny Urząd Statystyczny. Budownictwo mieszkaniowe I –III KWARTAŁ 2012 R. Retrieved from http://www.stat.gov.pl/cps/rde/xbcr/gus/PBS_budownictwo_mieszk_1-3kw_2012.pdf
• Urząd Marszałkowski Województwa Dolnośląskiego. Strategia Rozwoju Województwa Dolnośląskiego 2020.• Doherty, P. & Leinberger, C., 2010. Brookings Institution- research. [Online] Available at:
http://www.brookings.edu/research/articles/2010/11/real-estate-leinberger [Accessed 27 May 2012].• Górzyński, J., 2007. Podstawy analizy środowiskowej wyrobów i obiektów. Warszawa: Wydawnictwo Naukowo-
Techniczne.• Kronenberg, J. & Bergier, T., 2010. Wyzwania Zrównoważonego Rozwoju w Polsce. Kraków: Fundacja
Sendzimira.• Lewandowski, W.M., 2007. Proekologiczne odnawialne źródła energii. Warszawa: Wydawnictwo Naukowo-
Techniczne.• Lützkendorf, T., 2011. How to break the vicious circle of blame? The contribution of different stakeholders to a
more sustainable built environment. Sustainability in architecture and construction, (6), pp.1-10. http://www.fec.unicamp.br/~parc/vol1/n6/vol1-n6-LUTZKENDORF.pdf.
• Nelson, A. & Rakau, A.J., 2010. Green Buildings: A Niche Becomes Mainstream. Deutsche Bank Research.• PlGBC, n.d. Polish Green Building Council. [Online] Available at:
http://www.plgbc.org.pl/aktualnoci-a-wydarzenia/171-architektura-i-budownictwo-zrownowaone.html [Accessed 28 May 2012].
• Wnuk, R., 2006. Budowa domu pasywnego w praktyce. Warszawa: Wydawnictwo Przewodnik Budowlany.
Thank you for your attention
Malgorzata G. SlicznaDepartment of Ecological Economics
Wroclaw University of EconomicsE-mail: [email protected]