energy agency for southeast sweden energy efficiency in buildings in sweden riga 20061025, hans...
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Energy Agency for Southeast Sweden
Energy Efficiency in buildings in Sweden
Riga 20061025, Hans Gulliksson
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Energy Agency for Southeast Sweden
Main Tasks:• Energy efficiency
• Conversion to Renewable Energy Sources (RES)
(since 1999)
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Energy Agency for Southeast Sweden
450 km to Stockholm
240 km to Copenhagen
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Energy Agency for Southeast Sweden
Responsible Authority:• SSKL, Södra Smålands Kommuner och
Landsting
Financiers:• Municipalities in the Counties of Kalmar and
Kronoberg• SSKL, Södra Smålands Kommuner och
Landsting• Regional Council for Kalmar County• Swedish Energy Agency
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Energy Agency for Southeast Sweden
Field of activities
Heating
Electricity (lighting and engines)
Transportations
Heating
Electricity (lighting and engines)
Transportations
Priorities
High environmental quality
Reliable energy supply
Cost efficiency
Regional development with increased employment
High environmental quality
Reliable energy supply
Cost efficiency
Regional development with increased employment
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Core activities
• Renewable energy (bio, wind, solar)
• Energy efficiency (enterprises, housing, premeises)
• Energy Services, Third party financing
• Schools and education
• Transportations
• Energy planning and strategies
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Some key-words about ESS
• Large network – public & private
• Regional information centre
• FEDARENE & FSEK
• Some 20 projects in EU IEE (SAVE, Altener, Steer), FP5, FP6, InterregIII and structural funds
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Some ongoing EU-projects
• RES Market Places - IEE
• SESAC – Concerto FP6• SHARE - IEE• WasteWaterHeat - IEE• PU/Benefes – IEE• EuroContract –IEE• Interco/PPP – IEE• E-tream – IEE• MOVE – IEE• Bionet – IEE• eea,ESME,Impulse - RFO
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Industry Transports
Residential and services
Energy for heating and hot water
Electricity for household purposes
Electricity for common purposes
Building etc
Total energy usein Sweden 395 TWh/year
Source:STEM
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Existing buildings
New buildings
Low-energy houses
Del
iver
ed e
ner
gy p
er h
eate
d a
rea
(kW
h/m
2 ,yea
r)
Figure 3. Energy use (delivered energy) for heating and hot water per heated area in multi-dwelling blocks between 1970 and 2002. The graph of existing buildings represents total heated area during the current year and the graph of new buildings shows the energy use when work is finished. Examples of measured values from recently built low-energy houses illustrate the distance to Best Available Technology. (All data adjusted to average weather year)
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Figure 2. Energy use (delivered energy) for heating and hot water per heated area in small houses between 1970 and 2002. The graph of existing buildings represents total heated area during the current year and the graph of new buildings shows the energy use when work is finished. Examples of measured values from recently built low-energy houses illustrate the distance to Best Available Technology. (All data adjusted to average weather year)
Del
iver
ed e
ner
gy p
er h
eate
d a
rea
(kW
h/m
2 ,yea
r)
Existing buildings
New buildings
Low-energy houses
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Energyefficient buildings – House without heating system - Passivehouse• Strategy:
• Minimizing energy losses = effective energy management
• Measures:• Very well insulated
building envelope• Minimal air leakage• Mechanical
ventilation with very high heat recovery
• Solar energy for hot water
• Waste water recovery
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Kv. Oxtorget, Värnamo
Roof window for airing/natural lighting
U-value roof = 0,08
Solar panel for hot water
Upper hall Bedroom
Store
Clothes cupboardKitchen
U-value ground =0,09
- Concrete carcass gives more even temperature- Well insulated external walls and floors
- Design for optimal solar incident radiation/solar control (winter/summer)
- Electricityefficient (A++) domestic appliancies
- Demand-controlled ventialtion
- Water.. (vattensnål armatur)
- Electricityefficient luminaire
- Individual measurement
-Hot water accumulator
-Waste water heat-exchanger
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Kv. Oxtorget, Värnamo
Separating wall between flats
Plastic sheeting
Window/door
Horizontal details
Steel columnPlasterMineral woolLeaf of cavity wallMineral woolFacade sheetAirBoarding or sheet
Wall, long sidePlasterMineral wool/ studsLeaf of cavity wallMineral wool/ studsFacade sheetAirBoarding or sheet
Wall, vertical corner
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Energy use in dwellings
0
50
100
150
200
En
erg
y n
eed
s (k
Wh
/m2 ,y
ear
)
Excl electricity for household purposes Incl electricity for household purposes
Shus a
vera
ge
Fhus a
vera
ge
Fhus n
ew
Shus n
ew
Lindå
s
Jöns
Ols
Land
skro
na
Oxtorg
et
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Energyefficient dwellings
145
3114
15 30
10
9
36 2527
44
151
0
10
20
30
40
50
60
70
80
90
Lindås Landskrona Jöns Ols Oxtorget
Con
sum
ed e
nerg
y (k
Wh/
m2 ,y
ear)
Fastighetsel
Hushållsel
Varmvatten
Uppvärmning
• Electricity for common purposes
• Household electricity
• Hot water• Heating
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