Energy Efficiency in Building Sector

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 LightingEnergy 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 SectorABBs 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.

Energy Efficiency in Building SectorTopology and fields of application ABB i-bus KNX

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, ChinaHotels / restaurants e.g. Four Seasons, EgyptOffice / bank buildings e.g. Raiffeisen Zentral Bank, AustriaSchools / universities e.g. Grammar School Neufahrn, GermanyStadiums e.g. Sazka Stadium, Czech RepublicHospitals / care homes e.g. Triemli Spital, SwitzerlandIndustrial / production buildings e.g. Airbus production, GermanyAirports / railway stations e.g. Thessaloniki Airport, Greece

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 FunctionsSavings*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 occupiedOpen 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 buildingNightcooling (windows automatically opened at night) ?- High difference between night-time and day-time temperature

Energy Savings with ABB i-bus KNX Lighting Control* 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

Energy Savings with ABB i-bus KNX Lighting Control Principle of Constant Light Control

Energy Savings with ABB i-bus KNX Shutter and Blind Control* 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

Implemented FunctionsSavings*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 reducedHeight & 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

Energy Savings with ABB i-bus KNX Interaction of different Applications* 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

Implemented FunctionsSavings*Parameters (positive)Constant light control in combination with blind controlup to 44 % for cooling up to 50% for lighting- High daylight factor (light from outside) - Exposition to the southConstant light control in combination with blind control and presence detectionup to 50 % for cooling up to 52% for lighting- High daylight factor (light from outside) - Exposition to the south

Energy Savings with ABB i-bus KNX Reference Building Layout ground floor 30 x 15mCross sectionLongitudinal section

Energy Savings with ABB i-bus KNX Reference Building

Energy Efficiency in Building SectorABB cuts energy costs in SingaporeABB 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.

Energy Efficiency in Building SectorMarketing material ABB i-bus KNX

Energy Efficiency in Building SectorMarketing material ABB i-bus KNX Brochure We make climate protection possible Brochure KNX Association Green Buildings Presentation ABB i-bus and Energy Efficiency

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.

Energy Efficiency in Building SectorFurther Initiatives: ZVEI Home- and Building Electronic SystemsContinuous analysis of standardisation activities EN15232 and DIN V 18599 -> Consequences for the KNX systemEnergy 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

Energy Efficiency in Building SectorFurther Initiatives: ZVEI Home- and Building Electronic SystemsResult of the literature research on energy savings with bus systems

Energy Efficiency in Building SectorEnergy Efficiency Classes EN 15232Reasons 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

Energy Efficiency in Building SectorFurther Initiatives/Measures: Energy Efficiency Classes according to EN 15232Class A: High energy efficient room automation and cross linked trades (application segments)Class B: Optimised solutions for each trade, partially cross linkedClass C: Standard room automationClass D: No room automation, not energy efficientEnergy classes for new buildings

Energy Efficiency in Building SectorEnergy Efficiency Classes EN 15232Examples 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

Energy Efficiency in Building SectorEnergy Efficiency Classes EN 15232Examples 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

Energy Efficiency in Building SectorFurther Initiatives / Measures: Energy Pass EN15233Non-residential buildings in Germany need an energy pass since July 1st, 2009.

In public buildings (town halls, schools, hospitals etc.) with more than 1000 m net floor space and regular public access an energy pass has to be posted.