MINERGIE® –
Tool to create a market for comfortable, energy-efficient buildings
Presentation for the Polish Chamber of Architects
Warsaw, October 18, 2012
With support of the Polish-Swiss Chamber of Commerce,
Schindler, Astat and Zehnder
Dr. Ruedi Kriesi
Vice-president and head strategic group of MINERGIE association
Zehnder Group Management Ltd, Senior Project Leader
Member of the Swiss Academy of Technical Sciences
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
1
F2
Most successful tool in energy politics in Switzerland
Number of MINERGIE-Buildings
24‘000
22‘000
MINERGIE-buildings - fraction ≈ 30% of CH-newbuild
20‘000
18‘000
MINERGIE reduces E-consumption by 150 Mio. liter/a oil-eq.
16‘000
MINERGIE has produced 6000 jobs in building industry
14‘000
MINERGIE saves building value of 80 bill. SFR
12‘000
10‘000
8‘000
Average floor area per building 1000m2
6‘000
4‘000
2‘000
0
99
00
®
01
02
03
04
05
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
06
07
08
Polish Chamber of Architects, 12-1018,
2
09
10
11
F3
MINERGIE® with diverse architectures and materials
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
3
MINERGIE® in different climates
Kleinmatterhorn 3‘883 m
St. Tropez 0 m
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
4
MINERGIE® forVerwaltungsgebäude
large buildings
SWISSAIR
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
5
MINERGIE® for well designed buildings
ROLEX Learning Center EPFL, Lausanne
SANAA Architects
Sejima And Nishizawa And Associates, Tokio
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
6
F7
Broad communication with MINERGIE®
For viewings of ME-homes
For publicity for specialists
For politicians, investors
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
For trainings for specialists
Polish Chamber of Architects, 12-1018,
7
Birthplace of MINERGIE:
Zero-Energie-Dwelling Wädenswil, 1990
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
8
Big effect with a few cost-effective measures
Specific heat consumption
kWh/m2a
building shape
Ø ZH 1990
effect of the
measure
orientation of windows
U-value of windows
U-value walls, roof
Reduction
100
50
Solar gain
MINERGIE-standard
remaining
consumption
Airtight, comf. ventil.
9m2
+25m2
0-En. dwellings Wädenswil 1990
sol. collector
20m3 storage
waste water-HR
0
10
20
Specific investment,
SFR/kWh/a
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
9
The few decisive measures to reach MINERGIE®
Envelope:
- Compact, air-tight
- Thick, uninterrupted thermal insulation, incl. windows
- Windows with external adjustable shades
→ To minimize needs for heating/cooling
Ventilation:
Automatic, with heat recovery
→ To minimize energy consumption,
for better quality of living and working
Heater/Cooler:
Efficient, minimum amount of renewable and non-renewable energy
→ Expensive renewable energy makes sense for low needs
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
10
Comfort ventilation and user behavior
Continuously inclined windows
in traditional buildings
®
Closed windows in MINERGIE buildings thanks to automatic ventilation
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
12
F 13
Analyses of user behavior by Kriesi Energie with the city
of Zurich in 2011
Comparison of ventilation systems by
• Windows only
• Exhaust ventilation from Bathroom/kitchen
• Comfort ventilation
Method of analyzes:
Manual counting of open windows by
infrared camera
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
13
F 14
Comparison of user behavior
Window ventil.
Exhaust ventil.
Part of open windows, %
Comfort ventil.
3
0
2
0
1
0
K. Energie
K. Energie
Winter
Spring/fall
*Lüftungsverhalten in Wohnungen, Hans Erhorn, Johann Reiβ,
Fraunhofer Intsitut für Bauphysik, Stuttgart, 2010
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
14
MINERGIE® - Comfort, value and energy efficiency,
instead of sacrifice
1980s !
®
Mehr Lebensqualität, tiefer Energieverbrauch
Meilleure qualité de vie, faible consommation d'énergie
Improved quality of life, low energy consumption
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
15
User benefits of
MINERGIE-buildings
Barrier against noise, dust, draft
Automatic removal
of excess humidity
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
16
The view of progressive banks: Smaller risk
Reasons for better conditions of MINERGIE-loans:
• Energy-optimized buildings are
more attractive in energy crises
• Reduced risk thanks to slower
reduction of value
• House easier to sell
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
18
F 21
Offer of the industry
Fraction of refurbishments of MINERGIE 2009: 10%
= 0.35 Mio m2
Execution in 20 years:
35 Mio m2/a
1. ME-refurbishment 1997,
Viridén & Partner, architects, Zürich
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
ME-refurbishment,
Aardeplan, architects, Zug
Polish Chamber of Architects, 12-1018,
21
Limiting values of energy consumption for basic
standard
MINERGIE Energy Value in
kWh/m2a of single family home,
space heating by oil,
domestic hot water by 70%
solar collectors, 30% electricity
MINERGIE Energy Value in
kWh/m2a of same SFH,
space heating and DHW
by soil-coupled heat-pump
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
22
Effect of user behavior and improper execution
( Certification based on planning documents and random execution control !)
Comparison of new MINERGIE-houses with new
conventional houses
Part of the buildings
New conventional houses (study W&P)
New ME-houses, without electricity-factor
New ME-houses, with electricity factor
Standard
MINERGIE
Energy red.
Specific energy consumption [MJ/m2a]
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
23
MINERGIE® - International
•
•
•
The Swiss association MINERGIE® will found MINERGIE-INT Ltd. this fall
ME-INT could license a skilled engineering consultant
- to certify MINERGIE®-buildings in Poland
- to promote the advantages of energy-efficient buildings among investors
- to train Polish planners
MINERGIE® standards could be used
- for planners, installers, suppliers for differentiation
- for building owners as guarantee for quality
- for banks as criteria for lower risk mortgages
- for politics as criteria for subsidies, denser construction in cities
- for energy-specialists for the promotion of energy-efficient buildings
MINERGIE® has changed the image of energy efficiency in Switzerland
– why not in Poland?
®
Dr. Ruedi Kriesi, Vice president MINERGIE association
Zehnder Group
Polish Chamber of Architects, 12-1018,
25