1. Energy Efficiency in Building Sector
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2. Energy Efficiency in Building Sector Driving forces for Energy Efficiency and Climate Protection
Kyoto Protocol, reduction of CO2 emission (-5% in comparison to 1990)
EU activities to reduce CO2 emission until 2020 (-20%)
Demand for energy savings, due to long term increasing prices for oil, gas and electricity
European standard EN Energy Performance of Buildings, Impact of Building Automation and Controls
DIN V Energy Efficiency of Buildings - Calculation of the Energy Demand for HVAC and Lighting
Energy Efficiency Certificate for residential and non-residential public buildings (Classification A – D)
Global Green Building Initiatives
Public awareness to save energy and to protect our environment
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3. Energy Efficiency in Building Sector ABB’s main offer for Energy Efficiency in buildings
ABB i-bus system offers the main contribution for climate protection and energy savings in residential and non-residential buildings worldwide.
Based on the KNX technology – global standard for smart home and intelligent building control – according to ISO/IEC (HBC), ABB offers a comprehensive range of products and solutions for verifiable energy optimised applications in new and existing buildings.
ABB is a leading company in the Smart Home and Building Control Business in Germany and Europe.
Successfully sold almost over the world - besides Europe especially in MEA and SEA.
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4. Energy Efficiency in Building Sector Topology and fields of application ABB i-bus® KNX
Lighting control
Heating/Ventilation control
Climate control
Shutter/Blinds control
Safety/Security functions
Energy management
Visualisation/Monitoring
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5. Energy Efficiency in Building Sector ABB i-bus® KNX is used since 20 years in over 60 countries in thousands of projects, such as:
Private houses / flats / apartments e.g. ShiMao SheShan Villa, China
Hotels / restaurants e.g. Four Seasons, Egypt
Office / bank buildings e.g. Raiffeisen Zentral Bank, Austria
Schools / universities e.g. Grammar School Neufahrn, Germany
Stadiums e.g. Sazka Stadium, Czech Republic
Hospitals / care homes e.g. Triemli Spital, Switzerland
Industrial / production buildings e.g. Airbus production, Germany
Airports / railway stations e.g. Thessaloniki Airport, Greece
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6. Energy Savings with ABB i-bus® KNX Heating, Ventilation, Air Conditioning
Implemented Functions
Savings*
Parameters (positive)
Individual room temperature setpoints controlled by timer
up to 10 %
- Low thermal mass of surrounding walls
Individual room temperature setpoints controlled by presence detector
up to 25 %
- Room not permanently occupied
Open window detection ?
Automatic blind control (Positioning of blinds according to temperature and solar altitude/angle)
up to 30%
- High daylight factor (light from outside)
- Venetian blinds on outer surface of building -> Reduced heat incidence into the building
Nightcooling (windows automatically opened at night)
- High difference between night-time and day-time temperature
* Potential savings in a reference building according to DIN V resp. EN in comparison to conventional installation Publication of ZVEI based on study at University of Applied Science Biberach Measurements in own buildings
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7. Energy Savings with ABB i-bus® KNX Lighting Control
Implemented Functions
Savings*
Parameters (positive)
Constant light control (Closed loop control & presence detection)
up to 50 %
- High daylight factor (light from outside) - Setpoint >= 500 lx - blind control depending on solar altitude/angle
Lighting control (Open loop control depending on outside light & presence detection)
up to 45 %
- High daylight factor (light from outside) - Setpoint >= 500 lx
Presence detection (Simple switching of the lighting)
up to 20 %
- Rooms and corridors not permanently occupied/in use
Timer control (Simple switching controlled by timer)
up to 10 %
- Room not permanently occupied - Predefined breaks and working hours
* Potential savings in a reference building according to DIN V resp. EN in comparison to simple manually controlled lighting Publication of ZVEI based on study at University of Applied Science Biberach Measurements in own buildings
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8. Energy Savings with ABB i-bus® KNX Lighting Control – Principle of Constant Light Control
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9. Energy Savings with ABB i-bus® KNX Shutter and Blind Control
Implemented Functions
Savings*
Parameters (positive)
Simple sun protection (Close blinds in case of sunlight)
up to 13 % for cooling
- High daylight factor (light from outside) - Exposition to the south - Passive houses => heat incidence has to be reduced
Height & Lamella control (Open loop control depending on outside light & presence detection)
up to 21 % for cooling up to 13% for lighting
- High daylight factor (light from outside) - Exposition to the south
Sophisticated sun protection (depending on outside temperature, sunlight and presence of persons)
- High daylight factor (light from outside) - Exposition to the south - Rooms not permanently occupied/in use
* Potential savings in a reference building according to DIN V resp. EN in comparison to simple manually controlled shutters/blinds Publication of ZVEI based on study at University of Applied Science Biberach
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10. Energy Savings with ABB i-bus® KNX Interaction of different Applications
Implemented Functions
Savings*
Parameters (positive)
Constant light control in combination with blind control
up to 44 % for cooling up to 50% for lighting
- High daylight factor (light from outside) - Exposition to the south
Constant light control in combination with blind control and presence detection
up to 50 % for cooling up to 52% for lighting
* Potential savings in a reference building according to DIN V resp. EN in comparison to simple manually controlled shutters/blinds/lighting Publication of ZVEI based on study at University of Applied Science Biberach
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11. Energy Savings with ABB i-bus® KNX Reference Building
Longitudinal section
Cross section
Layout ground floor 30 x 15m
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12. Energy Savings with ABB i-bus® KNX Reference Building
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13. Energy Efficiency in Building Sector ABB cuts energy costs in Singapore
ABB i-bus, has helped several landmark buildings in Singapore cut energy consumption and win industry awards for energy efficiency and low environmental impact. Several of these installations have recently won best-performance awards for energy efficiency and environmental friendliness from the Singapore government and ASEAN (Association of Southeast Asian Nations).
For occupiers they have brought massive energy savings calculated by one at 17 percent and by another at around US$ 370,000 a year.
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The 59,000 square meter National Library building, Singapore.

14. Energy Efficiency in Building Sector Marketing material ABB i-bus® KNX
Internet
Brochure The right investment
DVD
References Worldwide
Intelligent Building Control
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15. Energy Efficiency in Building Sector Marketing material ABB i-bus® KNX
Brochure We make climate protection possible
Brochure KNX Association Green Buildings
Presentation ABB i-bus and Energy Efficiency
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16. Energy Efficiency in Building Sector Further Initiatives: KNX Association
Brochure KNX Association Green Buildings
Multivendor application and product description for energy savings with KNX-products and system solutions.
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17. Energy Efficiency in Building Sector Further Initiatives: ZVEI Home- and Building Electronic Systems
Continuous analysis of standardisation activities EN15232 and DIN V > Consequences for the KNX system
Energy Efficiency with KNX is integral part KNX of the ZVEI-Technology-Roadmap „Smart buildings in smart grids“ 2009 / > Benefit in residential and non-residential buildings
Study on “Energy Management” by trend research (Institute for trend and market research)
Multivendor literature research on “energy savings by bus systems” by the University of Applied Science Biberach
Study on “energy savings with KNX in residential and non-residential buildings” by University of Applied Science Biberach in preparation
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18. Energy Efficiency in Building Sector Further Initiatives: ZVEI Home- and Building Electronic Systems
Result of the literature research on „energy savings with bus systems”
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19. Energy Efficiency in Building Sector Energy Efficiency Classes – EN 15232
Reasons for creating „the energy pass“ resp. „energy classes“ for buildings
Motivation to apply measures to increase the energy efficiency in residential and non-residential buildings
Basis for buyers and/or tenants to be able to compare the energy efficiency of buildings
Classification of buildings according to energy classes based on EN Energy Performance of Buildings, Impact of Building Automation and Controls
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20. Energy Efficiency in Building Sector Further Initiatives/Measures: Energy Efficiency Classes according to EN 15232
Energy classes for new buildings
Class A:
High energy efficient room automation and cross linked trades (application segments)
Class B:
Optimised solutions for each trade, partially cross linked
Class C:
Standard room automation
Class D:
No room automation, not energy efficient
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21. Energy Efficiency in Building Sector Energy Efficiency Classes – EN 15232
Examples for necessary measures for classification:
Class A Interlinked single room temperature control Demand controlled supply/flow temperature Constant light control/open loop daylight control Lighting controlled by presence detectors Electrical shutter drives Shutter and lighting control cross linked with HVAC
Class B Single room temperature control Supply/flow temperature controlled by outside temperature Constant light control/open loop daylight control Lighting controlled by presence detectors Electrical shutter drives Shutter and lighting control cross linked with HVAC
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22. Energy Efficiency in Building Sector Energy Efficiency Classes – EN 15232
Examples for necessary measures for classification:
Class C Centralised control of room temperature Supply/flow temperature controlled by outside temperature Illumination manually controllable/dimmable Manual switching ON/OFF and centralised switching OFF Electrical shutter drives Simple sun protection automatic
Class D No control / no thermostat valves Fixed flow/supply temperature Illumination manually switched ON/OFF Electrical shutter drives with manual operation
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23. Energy Efficiency in Building Sector Further Initiatives / Measures: Energy Pass EN15233
Non-residential buildings in Germany need an energy pass since July 1st, 2009.
In public buildings (town halls, schools, hospitals etc.) with more than 1000 m² net floor space and regular public access an energy pass has to be posted.
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