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Text of IOT HEMANT 1


  • Energy Efficiency, a rising concernEnergy Efficiency

  • Energy Efficiency has implications along the complete Energy value chain (1/2)On the Supply SideOptimize T&D infrastructureDeploy efficient substation automationUpgrade to smart metering solutions

    Optimize quality and availability of supplied powerMeasure and improve delivered power qualityImplement DG in frequently congested areas

    Influence demand consumptionIntroduce new tariff structures and smart revenue meteringImplement AMRProvide customers with accurate and relevant consumption dataEstablish DR/DSM programs

    Deploy modern IT infrastructureHigh speed telecoms infrastructureModern Energy Information Systems

  • Energy Efficiency has implications along the complete Energy value chain (2/2)On the Demand SideAct on UsersEducate people on efficient use of energyAct on business related procedures

    Act on loadsReplace, renovate aging loads (lighting, motors, HVAC, )Implement intelligent load control (variable speed drives, regulation systems, lighting control, ...)

    Optimize quality and availability of on site powerMeasure and improve on site power qualityImplement backup generationExploit co-generation means

    Optimize supply costsUse the right tariffs according to specific load profileParticipate in DR/DSM programsResell excess power

  • Buildings are a major source of demand side energy efficiencyBuildings consume over 40% of total energy in the INDIA Between 12% and 18% by commercial buildings the rest residential.Implementing the IOT Building Directive (22% reduction) could save 40Mtoe (million tons of oil equivalent) by 2020.

    Consumption profiles may vary but heating, cooling and lighting are the major energy users in buildingsWater heating is a major element for healthcare, lodging, and schools.Lighting and Space Heating are the major elements for commercial and retail buildings.


    0.41Residential / Commercial




    Energy Demand in the INDIA in 2000


    Residential / CommercialIndustryTransport


  • Lets dream : tomorrows energy efficient buildings would have A structure and walls of such insulation performance that only 50 kWh/m2/year would suffice to achieve ideal thermal comfort

    All of its equipment to the optimal energy performance level (lighting, HVAC, office devices, )

    Intelligence everywhere that would seamlessly handle energy usage optimization whilst guaranteeing optimal comfort, a healthy environment and numerous other services (security, assistance to elderly people, )

    Renewable and non polluting energy sources

    The ability to satisfy its own energy needs (thermal and/or electric) or even contribute excess power to the community (zero/positive energy buildings)

    Users whose behaviors would have evolved towards a reasoned usage of energy

  • Envelope & structure of buildings are very efficient : less than 50 kWh/m2/year are needed for an ideal thermal comfort

  • Equipment (lighting, HVAC, consumer appliances) are more & more energy efficient

  • Intelligence is everywhere in buildings : for usages optimization, for comfort, for health, for servicesShutters, lighting, HVAC collaborate to reach global optimization : increase of more than 10 %global energy efficiency

    Sensors provide information of air quality (pollution, microbes, ) and smart ventilation insure health

    Weather prediction are integrated in control

  • Renewable, green energy sources are largely used

  • Buildings become an energy (thermal &/or electric) production unit for local needs. They can even contribute to global electricity production

    Buildings collaborate with energy actors

    Real time management of sources & loads in buildings

    Buildings aggregate their needs to optimize transaction with energy providers

    Buildings participate to services for quality & safety of electricity network

    Existing experiences : Passivhaus in Germany, Minergie in Switzerland, Zero Energy Buildings in USA

  • The dream is already partly reality

    Since the 90s numerous pilot sites have been built across the worldStop and Shop, Royal Ahold (Massachusetts - USA)High energy efficiency lights with automated lighting controlUse of natural light (50 roof glass panels),Results :Annual energy savings : 25%,50% less energy for lightingIncrease of average customer purchase versus other stores,

    Blanquefort College (Aquitaine - France)Use of solar energy : 120 m2 of solar collectors and 140 m2 of solar panels,On-line monitoring of energy consumptions and air quality,Results :Coverage of energy needs by renewable energy : 42%Annual energy consumption : 72 kWh/m2Annual CO2 emission : 8 kg/m2

    8 Brindabella Circuit, Canberra (Australia)Full control of HVAC, lighting, per office zone with activity sensorsUse of eco efficient lights and photovoltaic panels for hot water productionResults :Energy savings : 45%45% less CO2 emissionsHot water energy needs 100% covered by on site solar energy

  • Turning the dream into a commercially deployable solutionExamples of available solutions - R&D fields related to Energy EfficiencyOffering solutions to optimize energy use in existing buildings and guarantee efficiency over time75 % of the life cycle costs of a building are in the operation and alterations of the facility over 25 years.Renovations in existing buildings can yield energy savings of up to 30%.Long term sustainable maintenance offering preventive maintenance can keep those savings in place

    Innovative solutions delivering energy efficiency in new constructionsNew concept of integrated power and control building infrastructure with distributed intelligenceInnovative lighting solutions based on LED technologyAdvanced autonomous sensors and actuatorsSmart integration of local distributed generation means

  • Tomorrow's energy efficient buildings will require additional processing power at all levels of its infrastructureMV/LV transformer stationMain LVswitchboardMain LVSwitchboardLVpanelUltra terminal devices








  • Energy Efficiency and Intelligent BuildingsThank you for your attention

  • New integrated power and control architectureIntegration of Power, Control and VDI at infrastructure and equipment levelOne same equipment, the Active Control Unit, for the different electrical functions of the buildingSharing of sensors between applications for active controlOpen communication to ensure inter operability and delivery of new services

  • A new dimension : LED based lightingLighting represents 14% of the overall energy needs of a building. It is a major source of energy efficiency improvement.The performance of lighting is directly related to the technology of the light source but also greatly depends on the control strategyFrequent on / off operations according to sensor data,Intensity control in order to ensure constant luminosityThe gain throughout the use cycle exceeds 20%

    The progressive introduction of LED lighting is a ruptureIn effectivenessIn comfort of use

    Effective control of LED based lighting represents a double challengeMulti criteria control (based on intensity, color temperature, focus), shared control between user & automationElectric supply of these electronic loads

  • A new generation of autonomous sensors and actuators for active controlFurther optimizing buildings energy efficiency requires extended means of measuring and controllingNew types of sensors : environmental, presence, luminosity, A large quantity of sensors (more than 10 per room) : implies use of radio technology to reduce cost of installation and provide ease of evolutionAverage sensor cost of installation = 5000 + rewiring if building evolvesSensors and actuators must be autonomous to limit operating costsinstallation without power connectionsNo batteries to manage, change or recycle

    Current work focuses on a double innovation Sensor embedded power generation (no wires, no battery)An environmental sensor

    and a technological rupture by introduction of MEMS technologyto produce smaller, less consuming and smarter devicesto allow mixing of sensors and packaging

  • Smart integration of distributed generation means and connection to the gridThe challengeGrid insertion difficulty of local distributed generation meansLow interaction level with electricity distribution companiesCapacity to efficiently control the energy demand is limited and costly

    Proposed solutionCompetitive solution of universal grid connection of local generation means that allows for all modes of operation (backup, parallel, resell)Definition of a standardized definition model for the energy control of buildingsManagement of the demand by optimal control of loads and generation meansDynamic interface with distribution companies using either internet or power line carrier communications

  • Smart integration of distributed generation means and connection to the grid An application example in the residential fieldSmart load shedding panel Fits to traditional distribution panelsControls a limited number of feeders to balance available energy according to :

    . Priority levels. Energy distribution mode. Types of connected loadsMonitors energy useInterfaces to the grid connection panelProvides the HMI for configuration