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Energy Efficiency in Building Sector

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Energy Efficiency in Building SectorDriving 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 15232 Energy Performance of Buildings,Impact of Building Automation and Controls

DIN V 18599 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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Energy Efficiency in Building SectorABB’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 14543-3 (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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Energy Efficiency in Building SectorTopology 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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Energy Efficiency in Building SectorABB 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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Energy Savings with ABB i-bus® KNX Heating, Ventilation, Air Conditioning

* Potential savings in a reference building according to DIN V 18599 resp. EN 15232 in comparison to conventional installation Publication of ZVEI based on study at University of Applied Science Biberach Measurements in own buildings

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 ? - Low thermal mass of surrounding walls

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

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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 18599 resp. EN 15232 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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Energy Savings with ABB i-bus® KNX Lighting Control – Principle of Constant Light Control

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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 18599 resp. EN 15232 in

comparison to simple manually controlled shutters/blinds Publication of ZVEI based on study at University of Applied Science Biberach

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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 coolingup 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

- High daylight factor (light from outside) - Exposition to the south

* Potential savings in a reference building according to DIN V 18599 resp. EN 15232 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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Energy Savings with ABB i-bus® KNX Reference Building

Layout ground floor 30 x 15m

Cross section

Longitudinal section

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Energy Savings with ABB i-bus® KNX Reference Building

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Energy Efficiency in Building SectorABB cuts energy costs in Singapore

ABB i-bus, has helped several landmark buildings in Singapore cut energyconsumption 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 anotherat around US$ 370,000 a year.

The 59,000 square meter National Library building, Singapore.

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Energy Efficiency in Building SectorMarketing material ABB i-bus® KNX

Internet www.abb.com/knx

Brochure The right investment

DVD References Worldwide

DVD Intelligent Building Control

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Energy Efficiency in Building SectorMarketing material ABB i-bus® KNX

Brochure We make climate protection possible

Brochure KNX Association Green Buildings

PresentationABB i-bus and Energy Efficiency

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Energy Efficiency in Building SectorFurther 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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Energy Efficiency in Building SectorFurther Initiatives: ZVEI Home- and Building Electronic Systems

Continuous analysis of standardisation activities EN15232 and DIN V 18599-> Consequences for the KNX system

Energy Efficiency with KNX is integral part KNX of the ZVEI-Technology-Roadmap „Smart buildings in smart grids“ 2009 / 2010-> 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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Energy Efficiency in Building SectorFurther Initiatives: ZVEI Home- and Building Electronic Systems

Result of the literature research on „energy savings with bus systems”

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Energy Efficiency in Building SectorEnergy 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 15232 Energy Performance of Buildings, Impact of Building Automation and Controls

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Energy Efficiency in Building SectorFurther Initiatives/Measures: Energy Efficiency Classes according to EN 15232

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

Energy classes for new buildings

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Energy Efficiency in Building SectorEnergy Efficiency Classes – EN 15232

Examples for necessary measures for classification:

Class AInterlinked single room temperature controlDemand controlled supply/flow temperature Constant light control/open loop daylight controlLighting controlled by presence detectors Electrical shutter drives Shutter and lighting control cross linked with HVAC

Class BSingle room temperature controlSupply/flow temperature controlled by outside temperature Constant light control/open loop daylight controlLighting controlled by presence detectors Electrical shutter drives Shutter and lighting control cross linked with HVAC

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Energy Efficiency in Building SectorEnergy Efficiency Classes – EN 15232

Examples for necessary measures for classification:

Class CCentralised control of room temperatureSupply/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 DNo control / no thermostat valvesFixed flow/supply temperature Illumination manually switched ON/OFFElectrical shutter drives with manual operation

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Energy Efficiency in Building SectorFurther 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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