Georgi Georgiev, 21. April 2015€¦ · Georgi Georgiev, 21. April 2015 # GEORGI GEORGIEV BREAKING...
Transcript of Georgi Georgiev, 21. April 2015€¦ · Georgi Georgiev, 21. April 2015 # GEORGI GEORGIEV BREAKING...
Inspiring change for people
and the environment
Maßnahmenkatalog zur
Energieeffizienzoptimierung bei
Immobilien mit komplexen
Eigentumsstrukturen
Georgi Georgiev, 21. April 2015
# GEORGI GEORGIEV BREAKING THE WALL OF THE COMMON SETTLEMENT PLANNING
Integrated planning method for the synergistic power supply of settlement complexes
Urban policy and regulations + technical solutions + economy + society + STOCHASTIC
The three factors, used for the systemic assignment of the energy stakeholders on the analysis level in the
respective settlement area, are:
• Type and quality: Is the respective object an energy consumer or a producer, which scale does it have?
• Amount: detailed empiric analysis of every relevant stakeholder
• Topology, as energy transport distances lead to losses in efficiency and additional costs
Developing of a planning
process for the sustainable
energy supply of settlement
complexes
based on practical
experience in indiustry
complexes, industrial areas,
settlements with a mixed
usage (work, living,
industry), as well as
residential districts
Investigation of intelligent
common energy supply on a
district level: Heating,
electricity, combined
methods and systems.
# GEORGI GEORGIEV BREAKING THE WALL OF THE COMMON SETTLEMENT PLANNING
Strategy for energy, functional and design renovation of five selected blocks in the Frankenberger Quarter in Aachen, Germany
Integral decision process for planning and building
1. 2.
Analysis Step 1.: Potentials for usage of renewables
Analysis Step 2.: Problems and potentials of the building
and urban spaces
3.
Aim = improve the energy efficiency of flats,
apartments and tenements
• Multi-occupancy properties
• Taking whole block approach
• April 2013 – March 2016
• Intelligent Energy Europe (IEE) funding
• Six partner countries
• 24 case study blocks – 240 apartments
About the project
BACKGROUND
Drivers
Energy reduction
Carbon emissions
Fuel poverty
EU targets by 2020:
• 20% of energy from renewables
• 20% increase in energy efficiency
• Reduce greenhouse gases by 20%
www.lowenergyapartments.eu
50% 44%
71%
41%
55%
19%
35%
0%
10%
20%
30%
40%
50%
60%
70%
80%
Austria France Germany Hungary Sweden England Scotland
% o
f h
ou
sin
g
% of multi-occupancy housing
• Access to finance
• Payback expectations
• Competing purchase decisions
• Price signals
Financial
• Regulatory and planning issues
• Institutional
• Structural
• Multi-stakeholder issues
Institutional / admin
• Information barrier
• Awareness of benefits
• Skills & knowledge related to building professionals
Awareness & skills
Common barriers
Different contexts: EPCs
• Whole building EPCs available in
all partner countries except UK
• Individual apartment EPCs
provided in all partner countries
except Sweden and Germany
• Listed buildings can be exempt
• Quality of output
Different contexts: management
• Property managers or management boards
exist in all partner countries except the UK
– Often required to have annual meetings
• Various ownership models:
– Housing co-operatives
– Homeowner association
– Fully owned by one organisation
– Fully private owned (different owners)
• Decision procedures and voting rights vary
– Majority usually required for refurbishment
Scottish context
• Improvements more
likely in individual flats
than communally:
– Getting agreement and
securing finances is
difficult
• Tenements Act - further
clarity required
• Householders need to be
persuaded of the
benefits
ABOUT THE PROJECT
LEAF Partners
Toolkits T
EC
HN
ICA
L
TO
OL
KIT
• Reinforcing and beyond EPCs
• Info on:
• What EPCs are
• Descriptions of technical measures
• Cost, savings and subsidies
• User behaviour guidance
• Communal EPC tool (UK)
EN
GA
GA
EM
EN
T
TO
OL
KIT
• Step-by-step guidance for managers
• Info and advice on:
• Engaging and communicating with owners/ residents
• Decision-making
• Legal agreements
• Planning consents
• Signposting for further contacts
Both available in European-wide and national
specific versions
Project impacts C
AS
E S
TU
DIE
S
• 24 pilot projects in 6
countries (240+ flats)
• Whole building action
plans
• Targets (per year):
• 0.55t CO2 saved
• 2,300 kWh saved
• 280 kWh generated
OT
HE
R IM
PA
CT
S
• Toolkits publicly available for other organisations to use
• Learnings from case studies
• Policy recommendations at local, national and EU levels related to:
• EPCs
• Multi-occupancy housing
• Energy efficiency
CASE STUDIES
William Street, Edinburgh
• Built 1824/5
• Solid stone, single glazed
windows
• Four storeys, including
basement
• Mix of owner-occupied and
private rented
• Ground floor is shops and
offices
• Located within Edinburgh
New Town conservation area
and is ‘B’ listed
• Recent refurbishment work
William Street, Edinburgh
EPC recommendations:
• Draught proofing
• Low energy light bulbs
• Heating controls
• Solid wall insulation
• Replace boiler
• Replace glazing
EPC ratings:
• Change from ‘D’ and
‘C’
• To all ‘C’
• Nine flats - part owned by housing association
• Located in Pilrig conservation area
• Constructed pre-1919, solid stone construction
• EPCs currently underway. Recommendations
– Boiler and heating control upgrades
– Wall insulation
– Glazing improvements
Spey Terrace, Edinburgh
Visby, Sweden
• Built 1885
• 7 dwellings
• Private tenancy until 2005 –
now a housing co-operative
• Main building connected to
district heating - two smaller
buildings are not
• Part of Visby World Heritage
site
• Main recommendations –
triple glazing, wall insulation
• Residents want better comfort
and reduce energy bills
Lyon, France Bristol, England
• Built early 1900s
• Requires roof work
• Owners wanted to find
out how energy
efficiency could be
improved at the same
time
• Built pre 1900s
• Solid wall sandstone
• 3 student flats (private
rented) + 1 owner-occupier
• Looking at:
– Solid wall insulation – ECO
funding?
– Secondary glazing
1950 – 80s concrete blocks / pre-fab
Hungary
Germany
1950 – 80s concrete blocks / pre-fab
Folie
3
Quelle: Google Maps
Case Study Stuttgart
Stuttgart, Schlüsselwiesen 29-33
Built 1965
34 Flats
Rough analysis of the building example (saving potentials,
investments, LCC)
Discussion with the administration preparing a presentation to the owners.
Goal: Start of a detailled study
Planned start of the reconstruction 2014
Case Study Berlin
Berlin - Hansaviertel,
Bartningallee 16
Built in 1957, listed building
Architect Hans Schwippert
60 Flats
Case Study Berlin
2-story flats
Facade = energetic desaster, bur protected (listed building)
Thin concrete walls
Large glass surfaces
Large unused roof area
New heating system in the cellar
District heating
Case Study Berlin
Cogeneration in the future is possible Contracting i an interesting topic for the residents
Case Study Aachen
Aachen- Burtscheid,
Klosterweiher 2-14
Built in 1970
60 Flats
Case Study Aachen
Case Study Aachen
Problems
Non-insulated inner walls flat/staircase
Large glass surface in the staircase area
Non insulated basement ceiling
Non insulated roof ceiling
Large garden area owned
Perspectives
Cogeneration
Insulation in the problematic building areas
Solar energy usage – thermal and electric
District heating
© Fraunhofer
Case Study Aachen
Roof warm loft insulation is planned for the next year, in order to reach the required energy efficiency by the national regulations. An extraordinary full owner community meeting will be scheduled for November 2014, to take decision by the owner community. I should be there.
Case Study Bonn
Bonn - Bad Godesberg,
Zanderstraße 2-14
Built in 1970
59 Flats
Case Study Bonn
The facade The housekeeper
Heating system The facade inside
Case Study Bonn
Large glass surfaces in the facade area Old heating system Not any kind of insulation in the facade area Very thin walls behind the heating radiators Average age of the owners – over 65 (former residents since it was
built) Non insulated cellar ceiling over the underground garage Decision for the energetic refurbishment of the cellar area
© Fraunhofer
Case Study Bonn
New gas central heating will be installed in the complex. It has been discussed also about installing a pellet heating system, the idea was mainly supported by the investors in the owner community (owners of more than one flat in the complex, who rent their flats). The reason was, that the start invest would be higher than the one for the gas heating system. About 60 % of the flats in the complex are owned by owners, who live there and own one flat each. In connection to the heating system exchange, the owners are thinking about smart heating control by individual room climate based valves. For both actions they became from our team a lot of explanations and recommendations during their last Annual Full Owner Community Meeting and the time after.
© Fraunhofer IBP
Technical Development – Intelligent Heating Automation for the Smart Home of tomorrow
© Fraunhofer IBP
Technical Development – Intelligent Heating Automation for the Smart Home of tomorrow
Arguments pro an individual heating automation system
• Easy-to-set daily home usage schedule
• Good energy usage overview
• Strong reducement of the energy usage by heating only in the times needed
• Usage of the thermal mass of the building as an energy tank
• Indiv idual measure for the improvement of the energy efficiency of existing buildings and flats , especially for multi-occupancy houses with owner communities
• Fraunhofer IBP works on the development of self-learning smart home systems, in order to provide energy saving techniques to the society and the markets
Edinburgh
1950 – 80s concrete blocks / pre-fab
France
Austria
1950 – 80s concrete blocks / pre-fab
Emerging lessons - engagement
• Time intensive!
• Challenges:
– Private rented properties
– Social relationships between owners
– Lack of interest / awareness
– Finding contact details
• Successes:
– Working with trusted, known organisations,
where formal management arrangements
exist e.g. property managers
– Resident meetings
• Maintenance works – present
challenges & opportunities
EPC recommendations
• Limited impact on energy rating
• Planning restrictions
• Residents don’t want disruption of install
Finance
• Major issue
• Availability varies across Europe
• Uncertainty in funding programmes can make planning
difficult
• Maintenance funds exist in some countries – but
insufficient
Emerging lessons
• Tackling flats is challenging across Europe
• We need better technical tools - EPCs are a
starting point
• Robust and flexible frameworks are needed to
secure the support of owners from project
initiation to installation
• Scotland’s EPC regime, tenure split and system
for regulating maintenance in communally owned
buildings is especially challenging
• Case studies are needed to illustrate success
stories
Conclusions
www.lowenergyapartments.eu
Georgi Georgiev
Research Scientist
+49 8024 643612
www.lowenergyapartments.eu
Thank you