Energy Efficiency in Building Sector STOG Slide 1

Energy Efficiency in Building Sector © STO/G - Slide 1

Energy Efficiency in Building Sector Driving forces for Energy Efficiency and Climate Protection § Kyoto Protocol, reduction of CO 2 emission (-5% in comparison to 1990) § EU activities to reduce CO 2 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 § STO/G – Slide 2 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

Energy Efficiency in Building Sector ABB’s main offer for Energy Efficiency in buildings STO/G – Slide 3 § ABB i-bus system offers the main contribution for climate protection and energy savings in residential and nonresidential 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.

Energy Efficiency in Building Sector Topology and fields of application ABB i-bus® KNX STO/G – Slide 4 § Lighting control § Heating/Ventilation control § Climate control § Shutter/Blinds control § Safety/Security functions § Energy management § Visualisation/Monitoring

Energy Efficiency in Building Sector ABB i-bus® KNX is used since 20 years in over 60 countries in thousands of projects, such as: § § § 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 § § § STO/G – Slide 5 Private houses / flats / apartments e. g. Shi. Mao She. Shan Villa, China Hotels / restaurants e. g. Four Seasons, Egypt Airports / railway stations e. g. Thessaloniki Airport, Greece

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 ? - 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 * 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 STO/G – Slide 6

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 STO/G – Slide 7

Energy Savings with ABB i-bus® KNX Lighting Control – Principle of Constant Light Control STO/G – Slide 8

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 STO/G – Slide 9

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 - 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 STO/G – Slide 10

Energy Savings with ABB i-bus® KNX Reference Building Longitudinal section Cross section Layout ground floor 30 x 15 m STO/G – Slide 11

Energy Savings with ABB i-bus® KNX Reference Building STO/G – Slide 12

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. The 59, 000 square meter National Library building, Singapore. STO/G – Slide 13

Energy Efficiency in Building Sector Marketing material ABB i-bus® KNX § DVD References Worldwide § Internet www. abb. com/knx § Brochure The right investment STO/G – Slide 14 § DVD Intelligent Building Control

Energy Efficiency in Building Sector Marketing material ABB i-bus® KNX § Brochure We make climate protection possible KNX Association Green Buildings § Presentation ABB i-bus and Energy Efficiency STO/G – Slide 15

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. STO/G – Slide 16

Energy Efficiency in Building Sector Further Initiatives: ZVEI Home- and Building Electronic Systems STO/G – Slide 17 § Continuous analysis of standardisation activities EN 15232 and DIN V 18599 -> Consequences for the KNX system § Energy Efficiency with KNX is integral part KNX of the ZVEITechnology-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 nonresidential buildings” by University of Applied Science Biberach in preparation

Energy Efficiency in Building Sector Further Initiatives: ZVEI Home- and Building Electronic Systems Result of the literature research on „energy savings with bus systems” STO/G – Slide 18

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 15232 Energy Performance of Buildings, Impact of Building Automation and Controls STO/G – Slide 19

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 STO/G – Slide 20

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 STO/G – Slide 21

Energy Efficiency in Building Sector Energy Efficiency Classes – EN 15232 Examples for necessary measures for classification: STO/G – Slide 22 § 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

Energy Efficiency in Building Sector Further Initiatives / Measures: Energy Pass EN 15233 Non-residential buildings in Germany need an energy pass since July 1 st, 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. STO/G – Slide 23

STO/G – Slide 24