abb smart home

© ABB GroupApril 2010 | Slide 1

Davide Malacalza, Smart Grid China Summit, Beijing, April 2010

Smart HomeSolutions for Building Automation andEnergy Efficiency


� Introduction

� Legal framework

� ABB solutions for energy efficiency in buildings

� The bridge to Demand Response

� Success stories

� Conclusions

Energy Efficiency in BuildingsAGENDA


Introduction


� global warming represents presently the biggest thread to mankind

� at the heart of Global Warming lies the so-called greenhouse effect, caused by the emission of greenhouse gases.

� CO2 with 50% is the biggest contributor to the greenhouse effect and is generated when burning fossil fuels (coal, oil, gas etc.) for the generation of energy

Source: Hadley Center for Climate Protection and Research

Energy Efficiency in BuildingsDriving forces for Energy Efficiency and Climate Protection


� Kyoto Protocol, reduction of CO2 emissions (until 2012 reduction by 5% in comparison to1990)

� decision of EU in 2007 to reduce CO2 emissions until 2020 by 20%

� target of the German federal government to save 20% of primary energy in the next 10 years and 9% of final energy until 2016

� worldwide „Green Building“ initiatives, e.g. LEED (Leadership in Energy and Environmental Design) in USA, CRC (Carbon Reduction Commitment) in UK, Energy Efficiency programs in China, etc

� national/regional standards, e.g. European Standard EN 15232 Energy Performance of Buildings, “Impact of Building Automation and Controls” or EU’s Energy Performance of Buildings Directive (EPBD)

� economic pressure to save energy due to increasing prices for oil, gas, electricity as well as to protect the environment



� buildings have the biggest share of theworldwide energy consumption

� depending on local conditions the ‘Energy-Share’ values range from 38% in the USA up to more than 50% in Singapore

� as such, measures to increase the energy efficiency of buildings can make a considerable contribution to energy saving and global climate protection

Source: www.architecture2030.org

Energy Efficiency in BuildingsBuildings demanding for ~40% of total energy consumption


Source: JRC

Energy Efficiency in BuildingsBuildings demanding for ~40% of total energy consumption


� centralized power generation

� one-directional power flow

� generation follows load

� operation based on historical experience

� limited grid accessibility for new producers

� behavior: PREDICTABLE

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rids

� centralized and distributed power generation

� intermittent renewable power generation

� consumers can also become producers

� multi-directional power flow

� load adapted to production

� operation based more on real-time data

� behavior: RANDOM

smart home

Energy Efficiency in BuildingsFrom traditional to Smart Grids


Smart HomeSmart Grid

Information

Power

Energy Efficiency in BuildingsSmart Home: interaction with Smart Grids


Smart Grid with demand response requires buildings that are much smarter than existing buildings

� buildings (smart-homes) will be able to produce energy (renewables) � buildings (smart-homes) will share information about power consumption,(future) power demand and energy production with the smart-grid � buildings (smart-homes) will react and interact with smart grids

via flexible demand tariffs� buildings (smart-homes) will be able to safe energy costs and reducing CO2 by

using new flexible tariffs� buildings (smart-homes) will be able to switch on/off and or delay energy

consumption in the building� buildings (smart-homes) will be able to give the user a clear indication and

transparency of current and future energy consumption and tariffs

Energy Efficiency in BuildingsSmart Home: interaction with Smart Grids


Legal frameworksome highlights


� continuous analysis of standardization activities EN15232 and DIN V 18599-> Consequences for the KNX system (Intelligent Building Control)

� 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 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 BuildingsInitiatives: ZVEI Home (Germany)


Reasons for creating „the 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 BuildingsInitiatives: Energy Efficiency classes – EN15232


Class A

high energy efficient room automation and cross linked trades (application segments)

Class B

optimized 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



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 detectorsElectrical shutter drivesShutter and lighting control cross linked with HVAC



Examples for necessary measures for classification

� Class CCentralized control of room temperatureSupply/flow temperature controlled by outside temperatureIllumination manually controllable/dimmable Manual switching ON/OFF and centralized switching OFF Electricalshutter drives Simple sun protection automatic

� Class DNo control / no thermostat valvesFixed flow/supply temperatureIllumination manually switched ON/OFFElectrical shutter drives with manual operation



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.

Energy Efficiency in BuildingsInitiatives: Energy Pass – EN15233


� joint elaboration of DIN standards committees „Building Industry, HVAC and Lighting Engineering“

� for the calculation of all the energy, which is required for the heating, cooling/ventilation and lighting of a building

� in part 4 it considers e.g. lighting in winter time “positive” as an additional heat source and in summer time “negative”due to the higher amount of energy required for cooling

Energy Efficiency in BuildingsInitiatives: DIN V 18599 (Germany) on Energy Efficiency of buildings


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ABB solutions for energy efficiency in buildings


� only use energy when it is really required

� use energy when it is economically optimal

� only use the amount of energy actually required

� apply the energy that is used with the highest possible efficiency

Increase of energy efficiency in buildings means for us:

Energy Efficiency in BuildingsABB in Smart Home


� measuring / (sub)-meteringtariff options

� communication / visualization with / for end user

� switching on / off and delaying loadslight, blinds, heating, HVAC, security,

� data conversion and communication between smart home and outside

� integration of renewables solar, heating pumps, “small” wind

� demand response

� future applications (e.g. smart electric vehicles)

Energy Efficiency in buildingsMain functionalities of Smart Home


� ABB i-bus® KNX is an electrical installationsystem optimised for applications found in Smart Home and Intelligent Building Control.

� KNX is a de-central, programmable, bus system for residential and non-residential buildings.

� conforms to the KNX standard, the world’s first and only approved building & home automation technology standard ISO/IEC 14543 (HBC) and the European Standard EN 50090 (HBES)

Energy Efficiency in BuildingsABB offer: Intelligent Building Control ABB i-bus® KNX


Installed worldwide in thousands of projects in more than 60 countries

� Apartments/Villas/Flats/Home

� Office buildings

� Hotels/Restaurants/Hospitals

� Exhibition Centers

� Sport stadiums

� Museums / Churches

� Schools / Universities

� Banks

� Airports

� Industrial Facilities

� Shopping centers

Energy efficiency solutions with ABB i-bus® KNXBuilding types


� Lighting control and regulation

� Heating, ventilation, cooling

� Blinds and shutter control

� Security and monitoring

� Energy and load management

� Visualization and operation

� Central automatic

� Remote control / maintenance

� Interface to other control systems

Energy efficiency solutions with ABB i-bus® KNXApplication areas


� ABB i-bus® KNX: a solution integrating all electrical functions found in the building into one easy-to-manage control system

� simplified electrical installation, lower planning expenditure, reduced cabling

� easy extension and adaptation to new needs, with little time and financial investment

� intelligent automation functions offering more:- comfort and lifestyle features- economic efficiency- energy saving- safety and security

Energy efficiency solutions with ABB i-bus® KNXMain advantages


Energy efficiency solutions with ABB i-bus® KNXProduct range: automation and control

Modular components for device programming and control


Energy efficiency solutions with ABB i-bus® KNXProduct range: environmental control

Rain sensor

Motiondetection

Blind control

Light sensor

………


Energy efficiency solutions with ABB i-bus® KNXProduct range: energy management

User interfaces


� KNX Twisted Pair (TP)

� Standard medium for networking

� KNX Powernet (PN)

� Potential: Increasing importance through energy management in area of renovation

� Active technology marketing of KNX and PN

� KNX RF (wireless)

� RF and M-Bus RF can be integrated by early specification comparison

� Prospect: Meaningful and useful coexistence with M-Bus RF

� KNXnet / IP

� Prospect: Growing importance as a real “backbone”, particularly in new buildings

Energy efficiency solutions with ABB i-bus® KNXTechnology basis of KNX


� By the combination of constant light control and presence detection up to 50% energy savings are possible in a reference building according to DIN V 18599 resp. EN 15232 in comparison to manually switching ON and OFF.

� Own theoretical reflections and measurements in different rooms have confirmed these values

� Constant light control can be realized either by the combination of light sensor and constant light controller or by the integrated light controller of presence detectors

� In addition the life expectancy of the lamps is increased

Energy efficiency solutions with ABB i-bus® KNXLight control – Constant light control


Energy efficiency solutions with ABB i-bus® KNXLight control – Constant light control


� By means of timer controlled switching ON and OFF the lights in not permanently used rooms as well as in rooms with well defined occupancy times up to 10% energy savings are possible in a reference building according to DIN V 18599 resp. EN 15232 in comparison to manually switching ON and OFF.

� Time switches, the application unit ABZ/S2.1 as well as the integrated timer function of panels can be used for.

� In an ABB i-bus® KNX installation the timer controlled switching and dimming of any lights can be realized without any additional wiring efforts.

Energy efficiency solutions with ABB i-bus® KNXLight control – Timer controlled


� Especially in corridors and in not permanently used rooms up to 20% energy savings are possible in a reference building according to DIN V 18599 resp. EN 15232 in comparison to manually switching ON and OFF.

� Switching ON and OFF resp. sending values can also be controlled depending on the ambient brightness.

� A combination with timer control allows e.g.- to guarantee a basic illumination for well defined periods - to switch ON the lights for short times with relatively low

levels in case of presence during other periods- to fully switch ON the lights for longer times during all

other periods.

� In addition the life expectancy of the lamps can be increased by dimming down to a basic brightness instead of switching OFF completely.

Energy efficiency solutions with ABB i-bus® KNXLight control – Presence detection


� By the combination of presence detection and light control depending on the outside brightness up to 40% energy savings are possible in a reference building according to DIN V 18599 resp. EN 15232 in comparison to manually switching ON and OFF.

� For the light control depending on the outside brightness e.g. the brightness sensor HS/S3.1 or the weather unit WZ/S1.1 in combination with the weather sensor WES/A1.1 can be used

� Light control depending on the outside brightness is advantageous to constant light especially in big production halls or gymnasiums

Energy efficiency solutions with ABB i-bus® KNXLight control – Presence detection + brightness


- Room not permanently occupied - Predefined breaks and working hours

up to 10 %Timer control(Simple switching controlled by timer)

- Rooms and corridors not permanently occupied/in use

up to 20 %Presence detection(Simple switching of the lighting)

- High daylight factor (light from outside) - Setpoint >= 500 lx

up to 45 %Lighting control(Open loop control depending on outside light & presence detection)

- High daylight factor (light from outside) - Setpoint >= 500 lx- blind control depending on solar

altitude/angle

up to 50 %Constant light control(Closed loop control & presence detection)

Parameters (positive)Savings*Implemented Functions

* Potential savings in a reference building according to DIN V 18599 resp. EN 15232 in comparison to simple manually controlled lightingPublication of ZVEI based on study at University of Applied Science BiberachMeasurements in own buildings

Energy efficiency solutions with ABB i-bus® KNXLight control


� By automatically moving down the blinds in case of direct sun radiation up to 13% energy savings for cooling are possible in a reference building according to DIN V 18599 resp. EN 15232.

� This basic functionality is integral part of all ABB i-bus®

KNX shutter actuators.

� As soon as a certain brightness level is exceeded the shutter actuator moves the blinds to a predefined height and turns the lamellas into a predefined position.

Energy efficiency solutions with ABB i-bus® KNXBlinds control – Simple sun protection


� By different behavior in case of presence (sun protection) and in case of an unoccupied room (heating-/cooling automatic) up to 13% energy savings for lighting and 21% energy savings for cooling are possible in a reference building according to DIN V 18599 resp. EN 15232.

� This functionality is also part of all ABB i-bus® KNX shutter actuators.

� In case of presence of persons the shutter actuator moves the blinds to a predefined height and turns the lamellas into a predefined position as soon as a certain brightness level is exceeded.

� In case of an unoccupied room the blinds are completely opened during the heating period in case of sunshine. Just the other way round they will be closed in summer when cooling the room.

Energy efficiency solutions with ABB i-bus® KNXBlinds control – Sun position + presence


� By controlling the blinds depending on the position of the sun a maximal light incidence at minimumglare is achieved.

Energy efficiency solutions with ABB i-bus® KNXBlinds control with the Shutter Control Unit


- High daylight factor (light from outside) - Exposition to the south - Rooms not permanently occupied/in use

under studySophisticated sun protection (depending on outside temperature, sunlight and presence of persons)

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

up to 21 % for cooling up to 13% for lighting

Height & Lamella control(Open loop control depending on outside light & presence detection)

- High daylight factor (light from outside) - Exposition to the south- Passive houses => heat incidence has to

be reduced

up to 13 % for cooling

Simple sun protection (Close blinds in case of sunlight)


* Potential savings in a reference building according to DIN V 18599 resp. EN 15232 in comparison to simple manually controlled shutters/blindsPublication of ZVEI based on study at University of Applied Science Biberach

Energy efficiency solutions with ABB i-bus® KNXBlinds control


� By timer controlled fixing of the setpoints for heating and cooling room-by-room up to 10% energy savings are possible in a reference building according to DIN V 18599 resp. EN 15232 in case of not permanently used rooms as well as in rooms with well defined occupancy times in comparison to manually switching ON/OFF the heating/cooling.

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Energy efficiency solutions with ABB i-bus® KNXHVAC (Heating, Ventilation, Air Conditioning) – Temperature profile


� By presence controlled fixing of the setpoints for heating and cooling room-by-room up to 25% energy savings are possible in a reference building according to DIN V 18599 resp. EN 15232 in case of not permanently used rooms as well as in rooms with well defined occupancy times in comparison to manually switching ON/OFF the heating/cooling.

� It makes sense to combine the presence detection with an underlying time-/temperature profile for the setpoints

� In case of presence of persons presence detectors will change the setpoints from „stand-by“ to „presence“

Energy efficiency solutions with ABB i-bus® KNXHVAC – Fixing the setpoint by presence control


� Change the setpoint if windows are open/closed

� Automatic opening of windows for “night cooling” resp. automatic ventilation via air ducts

� Integration of advanced heating-/cooling automation into shutter control Setpoint „heating“ < Setpoint heat-/cool-automationSetpoint „cooling“ > Setpoint heat-/cool-automation

26°24°

21°19°

Setpoint of cooling systemSetpoint of “shutter“ system

Setpoint of heating systemSetpoint of “shutter” system

Energy efficiency solutions with ABB i-bus® KNXHVAC – Further functions and savings


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

- High difference between night-time and day-time temperature

under studyNightcooling (windows automatically opened at night)

- High daylight factor (light from outside)- Venetian blinds on outer surface of building

-> Reduced heat incidence into the building

up to 30%Automatic blind control(Positioning of blinds according to temperature and solar altitude/angle)

- Low thermal mass of surrounding walls under studyOpen window detection

- Room not permanently occupiedup to 25 %Individual room temperature setpoints controlled by presence detector

- Low thermal mass of surrounding walls up to 10 %Individual room temperature setpoints controlled by timer


Energy efficiency solutions with ABB i-bus® KNXHVAC


� A complete automation solution for Hotel Rooms, Care Home Facilities, Small Apartments, etc

� A single device containing all functions: Switching, HVAC, Lighting, Shutters, Operations, Logic, …..

� Plug & Play application with powerful comfort and energy efficiency features

Energy efficiency solutions with ABB i-bus® KNXRoom master



up to 50 % for cooling up to 52% for lighting

Constant light control in combination with blind control and presence detection


up to 44 % for coolingup to 50% for lighting

Constant light control in combination with blind control


* Potential savings in a reference building according to DIN V 18599 resp. EN 15232 in comparison to simple manually controlled shutters/blinds/lightingPublication of ZVEI based on study at University of Applied Science Biberach

Energy efficiency solutions with ABB i-bus® KNXSavings from the interaction of different applications


The bridge toDemand Response


�

Metering Bus

KNX Bus

� Electrical connections

� Communication

� Electricity, gas, water, heat meters

Multi Utility Communication Controller and Smart Meter

Comfort Panel for comfort and energy efficiency

Solar products Combiners, DC Breakers etc.

Electrical vehicles

Energy efficiency solutions with ABBABB i-bus® KNX and Demand response

Addressing the temporary change in electricity consumption by Demand Resources in response to market or reliability concerns


ComfortPanel

� High end TFT-touch display for visualization and control of functions

� KNX functions light scenes, room control

� Multimedia mp3-, video player

� Email, web cam, RSS-feeds

� Twisted Pair- und PowerLine-Module, integrated KNXnet/IP-Router

� processing > 8000 Data points per second

priOn

� Rotate & Push operator concept priOn

ComfortPanel

Energy efficiency solutions with ABBABB i-bus® KNX and Demand response: high end user interface


� Energy monitoring and control

� Display tariff information

� Display energy consumption

� Data logger for all KNX data points for visualization

� LogicEngine to react automatically on tariff changes by user defined scenarios

� Integration of white goods

Energy efficiency solutions with ABBABB i-bus® KNX and Demand response: high end user interface


Functions• 1,5“ LCD Display

• Displaying energy consumption data and costs

• Tariff manual & automatically*

• Displaying Tariff forecast*

• Displaying billing relevant data via utility based web portal*

• Displaying data from category meters like gas, water, heat, oil

• RGB backlight for displaying status

* Needs service from grid owner

Energy efficiency solutions with ABBABB i-bus® KNX and Demand response: Energy display


meter with four quadrant metering meaning that the meter can measure both imported as well as exported energy. The meter is available in versions for active energy and combined active and reactive energy

Energy efficiency solutions with ABBABB i-bus® KNX and Demand response: Smart Metering


Provider

GSMDSLPLC

Basics1. remote electricity meter

reading2. upgrading for

• gas• water • heat• …

Energy efficiency solutions with ABBABB i-bus® KNX and Demand response: multi utility communication


� HEMS balances the end-user’s comfort, cost and lifestyle preferences in the face of uncertain conditions regarding the price of electricity, weather and grid conditions

� Minute-to-minute HEMS decisions include scheduling and shifting of:

� Consumption of electric appliances

� Charging/discharging of energy storage devices

� Power generation

� Power exchanges with distribution system operator

� Appropriate methods for sequential decision making under uncertainty:

� Rule-based

� Stochastic Dynamic Programming

� Model-base Predictive Control

Energy efficiency solutions with ABBABB i-bus® KNX and Demand response

HEMS: Home Energy Management System


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Energy efficiency solutions with ABBABB i-bus® KNX and Demand response: HEMS


Loads are shifted to a period of cheap electricity price via a delayed start

Energy efficiency solutions with ABBABB i-bus® KNX and Demand response: HEMS, an example


Success stories


National StadiumNational Aquatics Centre

Beijing University Gymnasium Beijing Airport

Energy efficiency solutions with ABB i-bus® KNXSuccess stories: Olympic Games in Beijing


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.

Energy efficiency solutions with ABB i-bus® KNXSuccess stories: ABB cut energy costs in Singapore


Energy efficiency solutions with ABB i-bus® KNXSuccess stories: major applications in Asia

� Bangkok Airport� Shimao Villas� Pudong Airport� Golden Lake Hotel� Tianjin Museum


Depending on the daylight, shutter actuators control in the class rooms the louvres and presence detectors switch on the lighting partiallyor in total. The set points of the room thermostats are controlled by timers according to the occupancy.

Shutter control in combination with the ventilation system manitains acomfortable ambient temperature,which even in summer will not exceed21°C. By using ABB i-bus® KNXin combination with the refurbishmentof the building shell the total energy consumption could be reduced from160kWh/m² p.a. to ca. 25 kWh/m² p.a.

User/Investor: Gemeinde BezauSpecifierConsultant: Elektro Will

Energy efficiency solutions with ABB i-bus® KNXSuccess stories: secondary school in Bezau, Austria


The school center – built in 2003 – has total floorplan of 14,000 square meters.525 KNX devices control the lighting depending on the outside brightness andthe presence of persons. If a room is not used, the blinds remain open in winterand closed in summer time to increase useful thermal transfer

By constructural measures and the usageof an intelligent and networked lightingand blind control the energy consumptionin the new building was reduced to1/3 of the previous value.

User/Investor: Stadt NeckargemündSpecifier/Consultant: Gantert & Braun

Energy efficiency solutions with ABB i-bus® KNXSuccess stories: school center Neckargemund, Germany


User/Investor: ABB/Ejendomsaktieselskabet Goyernes Gaard Specifier/Consultant: Lillibaelts Gruppen

In the open-plan offices a ‘before and after’comparison of the consumption measurements showedsavings of 13% in the electrical energyused for lighting purposes.

The building comprises in total of 123 rooms on three floors. The KNX installationconsists of 14 lines with a total of 645 devices. Besides the automation of the heating and cooling system (presence and timer controlled) special emphasiswas put on constant light control.

Energy efficiency solutions with ABB i-bus® KNXSuccess stories: ABB building in Odense, Denmark


User/Investor: APESpecifier/Consultant: CUnEdI der Universität von Trient

The comparison before (2006) and after theKNX installation (2007) shows energy savingsof approx. 28%. The consumption of electrical energy has been reduced by more than38,000kWh per month.As such within the first year of using the KNX system the museum had already saved around 80,000€.

The museum forms part of the most important exhibitions of modern art in Italy.KNX technology is mainly used to control the lighting according to time and outside brightness as well as to easily activate so-called light scenes.

Energy efficiency solutions with ABB i-bus® KNXSuccess stories: modern art museum in Rovereto, Italy


Conclusions


� Energy efficient buildings can contribute significantly to energy savings and thus global climate protection.

� ABB is a leading company in the area of Smart Home and Intelligent Building Control based on the KNX-Technology

� ABB i-bus® KNX is based on the worldwide standard ISO/IEC 14543 (HBC) as well as on EN 50090 (HBES) and comprises of allrelevant products necessary to enable a sustainable decrease ofthe final energy consumption in new and existing buildings.

� ABB has in the last 25 years gained a wealth of experience from thousands of successfully realized projects in more than 60 countries worldwide

Energy efficiency solutions with ABBConclusions


Fabian HessBusiness Development Director for Smart GridPower Systems Divisione-mail: [email protected]

Keith King-Wai LeungProduct Management & Marketing ManagerLow Voltage Products Division - Chinae-mail: [email protected]

Davide MalacalzaR&D ManagerLow Voltage Products Division - Chinae-mail: [email protected]

www.abb.com/knx

Energy efficiency solutions with ABB Further information

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