1. Σάββατο 6 Οκτωβρίου 2012
MEC EXPO CENTER
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E.I.Π.Α.Κ. 2012 ALL RIGHTS RESERVED

2. Passive House Concept and Solar
Shading
First Hellenic Conference for the Passive House
Saturday 6th October 2012
Ann Van Eycken, Secretary General
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3. ES-SO: the European Solar-Shading
organization
• The umbrella organization of the European solar shading
industry
• 17 member countries, 1 overseas - US link
• Represents thousands of SME’s all over Europe
• Offers internal & external solar shading, roller shutters
• Acts at European level to demonstrate the contribution of the
industry to energy savings in buildings
• www.es-so.com
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4. 11 full members (national solar shading
organizations) - 17 EU countries, 1 US
Austria BVST
Belgium VEROZO
Finland Aurinkosuojaus Ry
France SNFPSA
Germany ITRS
Italy ASSITES
the Netherlands ROMAZO
Poland Access & Sun Protect. Ass.
Sweden SSF
Switzerland VSR
UK BBSA
+ Associate Members
Euroblinds (Cyprus), Velux (Denmark), CRH (Ireland), Gradhermetic
(Spain), Hunter Douglas Norge (Norway)
+ Supporting Members
Sun & Shadow (Greece), De Leeuw Ltd (UK), PAMA (US)

5. How ES-SO got started
•In 2004, the EU authorities were not aware of the merits,
markets or even existence of our business
•Lobbies of the Insulation, Glass, HVAC etc were very active
in Brussels, both at Commission and Parliament level
•Since 2002 many initiatives were being prepared for
better energy performance in buildings
•To bring solar shading in the picture, we needed a
‘vehicle’ to hook on to and demonstrate our contribution
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6. Which EU policy areas to focus on?
•Buildings and construction
•Climate policy
•Energy efficiency and energy services
•Energy labeling and ecodesign
•Financial, fiscal and tax issues related to energy
efficiency
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7. Global warming: a complex matter
source:jhakkas.wordpress.com

8. Energy consumption of buildings
in Europe: 41%

9. What is being done in ‘Brussels’
•2002: Initial ‘Energy Performance of Building Directive’ (EPBD)
• 2007: Implementation of EPBD in Member States disappointing
• 2007: ‘Energy Efficiency Action Plan 2007-2012’ – including the 20/20/20
objective for the year 2020
• EPBD recast in 2010: stricter, clearer, broader, more urgency
• 2011: new version of the Energy Strategy for 2011-2020
• Heavy emphasis on refurbishment of existing building stock
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10. Forecasting the 20/20/20 outcome
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12. Our basic message to the EU
1. Solar shading reduces the cooling load, saves precious
electric energy and helps reduce peak load on the grid
2. Solar shading, if properly automated, can reduce the
heating load in winter, hence saves energy (automation,
roller shutters).
3. Solar shading enhances the use of free, natural daylight
which reduces the use of electricity for lighting – saving
precious power (automatic control, internal solar shading).
All products combined, can reduce the energy consumption
in the EU’s building stock by almost 10%, according to
ES-SO’s scientific study ESCORP-EU25
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13. ES-SO’s scientific study:
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14. Big energy savings from
reduction of cooling load
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15. Use of renewable energy:
heat demand reduction from shading
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16. Numbers vary with climate zones
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17. Energy Performance of
Buildings Directive – recast

(1)
a) All new build “nearly zero energy buildings” as of end of 2020 (public
sector: end of 2018). Remaining energy need mainly covered by RES
b) Minimum energy performance requirements for all existing buildings that
undergo an energy relevant renovation
c) Level of minimum energy performance requirements
for new buildings (until 2020) and renovations:
Benchmarking to achieve cost-optimal levels
d) Requirement for Member States to lay down
min. energy performance levels for
technical building systems and building elements
when installed, replaced or upgraded

18. Energy Performance of
Buildings Directive – recast

(2)
e) Display of Energy Performance Certificates in public buildings
(decrease of threshold to 500 m2 and 250 m2 after 5 years)
e) Strengthening the role and the quality of energy performance
certificates – i.a. by quality checks and obligatory use of the
performance indicator in all advertisements for sale or rent
f) Strengthening the role and the quality of HVAC
inspections
e) Stimulating financing mechanisms for energy
efficiency investments in the building sector
f) Exemplary role of public authorities

19. Recast EPBD: what’s in it for
solar shading?
Recital 9: The energy performance should be calculated on the basis of …. and
that includes in addition to thermal characteristics other factors that play
an increasingly important role such as …passive heating and cooling
elements, shading, adequate natural light.
Recital 25: Priority should be given to strategies which enhance the thermal
performance of buildings during the summer period. To that end, there
should be focus on measures which avoid overheating, such as shading
and sufficient thermal capacity in the building construction, and further
development and application of passive cooling techniques.
Annex 1, 3, g: the methodology shall be laid down at least taking in
consideration the following aspects such as passive solar systems and
solar protection
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20. Vision of architects in Europe - 2012
‘Within the next five years,
we will see a trend
towards using
more natural ventilation
and shading instead of
traditional air conditioning’
Study Arch.Vision, July 2012
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22. Pathway to Passive House
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23. Passive House Concept
How can you
keep cool a
Passive House?
Original source Griesser
page 22

24. Passive House Concept
The Passive House standard - requirements:
• The building must be designed to have an annual heating demand of not
more than 15 kWh/m² per year in heating OR to be designed with a
peak heat load of 10W/m²
• Total energy-use (including electricity) is limited to 42kWh/m²
• Total primary energy consumption (heating, hot water and electricity)
must not be more than 120 kWh/m² per year
• The building must not leak more air than 0.6 times the house volume
per hour (n50 ≤ 0.6 / hour) at 50 Pa (N/m²) as tested by a blower door
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25. Trias Energetica
Increased insulation
Airtight construction
BUT:
Good in wintertime
Overheating in summertime

26. Peak cooling loads ~ investment costs
Source: Rehva –ES-SO Guidebook Solar Shading 2010
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27. Low e-glazing
Automated Venetian blind
 total primary energy
 heating energy
 cooling energy
 lighting energy
South orientation:
at least 50% ↓ cooling energy
due to solar shading
Source: REHVA-ES-SO Guidebook
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28. Results Keep Cool II
Office, 2nd floor, 1008 m2, glazing 30%
 Pack 1: reduction of internal gains
 Pack 2: Pack 1 + Solar shading
 Pack 3: Pack 2 + Free cooling
 Pack 4: Pack 3 + Roof Insulation + Efficient windows
Reduction cooling needs 60-90% Reduction of hours with discomfort 35-85%
90 70
Stockholm 65 Stockholm
80 60 Paris
Percentage of time outside zone
Paris
70 Milan 55 Milan
Cooling needs [kWh/m²]
Lisbon 50 Lisbon
60 Palerme 45 Palerme
40
50
35
40 30
25
30
20
20 15
10
10
5
0 0
Ref. Equipment Pack. 1 Pack. 2 Pack. 3 Pack. 4 Ref. Equipment Pack. 1 Pack. 2 Pack. 3 Pack. 4
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29. Keep Cool II
Flat, 6th floor, 100 m2
 Pack 1: special paintings and venetian blind
 Pack 2: Pack 1 + roof insulation
 Pack 3: Pack 2 + wall insulation
90
80 Stockholm
Paris
70 Milan
Cooling needs [kWh/m²]
Lisbon
60 Palerme
50
40
30
20
10
0
Reference Venetian Pack. 1 Pack.2 Pack 3
(Rad.)
www.es-so.com
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30. Cooling needs in kWh/m²
140
120
100
Cooling needs [kWh/m²]
80
60
40
20
0
Ref. Roof insul. Lighting Special Equipments Efficient Screen Mech. Venetian Free Mech. Free Screen Venetian
paintings windows (Manual) ventilation (Manual) cooling ventilation cooling (Rad.) (Rad.)
for cooling (night) for cooling (night/day)
(N) (N/D)
Stockholm Paris Milan Lisbon Palerme
Source: ARMINES, WP4 Keep Cool II, Evaluation of Energy Savings

31. Passive House Cooling
• Shading is crucial in any passive cooling strategy.
One of the best strategies – automated mobile external
solar shading
• Combination with ventilation (night cooling/system)
• Inside temperature should not be more than 25°C
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35. COME VISIT US AT
www.es-so.com
www.es-so.eu
ATTENTION!
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36. SPONSORS:
WITH THE SUPPORT:
MEDIA PARTNERS:

37. 1
www.buildinggreenexpo.gr
E.I.Π.Α.Κ. 2012 ALL RIGHTS RESERVED