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Keynote Speech

ProfessorSaifurRahmanDirector,VirginiaTechAdvancedResearchInst.,USAPresident-elect,IEEEPower&EnergySociety

ENERGY EFFICIENCY AND THE ROLE OF IOT IN ASMART CITY CONNECTED COMMUNITY

Grameen Phone, Dhaka, Bangladesh, 05 August 2017

2www.saifurrahman.org

VirginiaTechResearchCenterArlington,Virginia,USA

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PPT slides will be available at

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www.saifurrahman.org

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InvitedLectureSlidesonwww.saifurrahman.org

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FromSmartBuildingstoSmartGrid

Smart Grid

Smart City

Smart Campus

Smart Buildings

Smart grid: Bi-directional flows of energy, remote control/automation of power, integrated distributed energy…

Smart city: Complex system of interconnected infrastructures and services…

Smart buildings: Intelligent building automation systems, smart devices, productive users, grid integration…

Supported by ICT and distributed networks of intelligent sensors, data centers/clouds

Smart Campus: A collection of buildings managed by the same facility manager…

WhatmakesaBuildingSmart

AsingleplatformformonitoringandcontrolofHVAC,lighting,watersupply,sensornetworks,securitycamera&fireemergency

Source: Smart Building Market To Grow 30% by 2020, http://www.iotsolutionprovider.com/smart-building/smart-building-market-to-grow-30-by-2020, December 2015.

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InternetofThings(IoT)

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IoT-enabledsmartbuildingsofferin-buildingdevicemobility,occupantcomfort,andindooractivitiesautomation

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IoT ApplicationsinHealthcare,Agriculture,Transport,Energy

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SmartBuilding&IoT Evolution

Building Control• HVAC control• Lighting control

Building Automation• Building

management• Building control

Building Performance• Energy

management• Remote

monitoring• Remote control

Smart Building• Intelligent

buildings• Green buildings• Grid integration

1980 1990 2000 2010 2020<

InternetofThing(IoT)ConnectedDevices

50billions6.92billions0.2billions

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HowdoyoumakealargenumberofIoT deviceswork

together?

Needasoftwareplatform

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Sensors/PowerMeters

Plug Load Controllers

Lighting Load Controllers

CT30 (WiFi)

CT50 (WiFi

)CT80 (ZigBee SE)

ICM(WiFi)

RTU (Modbus)

VAV controller (Modbus)

Nest(WiFi)

Philips Hue(WiFi)

Light switch(WiFi)

Step-dimmed ballast

(ZigBee)Lighting

load controller(BACnet)

Smart plug(WiFi)

Smart plug(ZigBee)

Plug load controller(BACnet)

Power meter

(BACnet/Modbus)

Power meter(Modbus)

Occupancy sensor

(BACnet)

Light sensor(BACnet)

HVAC Load

Controllers

VirginiaTechPlatformforIoT DeviceIntegration

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Improvesenergyefficiencyandfacilitatespeakloadsavingsinbuildingsbuildings.

AnOpenArchitecturePlatformforBuildingEnergyEfficiency

BEMOSSisaBuildingEnergyManagementOpenSourceSoftware(BEMOSS)solutionthatisengineeredtoimprovesensingandcontrolofall IoT-enabledequipmentincommercialbuildings

Threemajorloadsinbuildings• Heating,Ventilation,AC• Lightingloads• Plugloads

BEMOSSmonitoringandcontrol:

BEMOSS value:

BEMOSSwww.bemoss.org

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Multi-sensorApplications

BEMOSSZone1

BEMOSSZone2

Floor 1

Floor 2

BEMOSSCore

…

…

…

Raisingthesetpointfrom6am-6pmdemonstrates10.5%energysavingsinHVACloadperdegreetemperatureincrease.

25,000sqft buildinginAlexandria,VA

Outdoor temperature profiles:

Indoortemperatureset-points:

OutdoorTemp

EnergySavingsfromSensorDeployment&Control

5Wirelessthermostats

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ClassroomunderReal-timeMonitoring

BEMOSScore

Plugloadcontroller

Environmentalsensor(CO2,noise,temperature)

MotionsensorThermostat

Powermeter

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WeatherSensorIntegration

IndoorEnvironmentalMonitoring

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SmartLightIntensityControl

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EnergySavingsbyControllingLightIntensityBasedonoccupantrequirements,lightintensitylevelwas reducedduringOctober–December2016.ResultsindicatetheaveragekWhsavingsofabout34%.

Note: Scheduleddimming levelfrom6:30amto9:00pm.OpenofficeareaA:50%;OpenofficeareaB:45%;Chiefoffice’sdesk area:60%;Chiefoffice’smeetingarea:50%;ConferenceroomA:50%;ConferenceroomB:45%.Lightsareoffafter9:00pm.

Month

Total Measured Energy

Consumption (kWh)

Total Calculated Energy Consumption

without Dimming (kWh)

Energy Savings by Dimming (%)

October 2016 264.37 399.90 33.89%

November 2016 278.13 423.78 34.37%

December 2016 280.76 426.40 34.16%

Total (October-December)

823.26 1250.08 34.14%

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SmartCampus

…

Utility/DR Aggregator

HVACLighting loadsPlug loadsPower meters

PV & storageSecurity cameraCustomers/Operators Buildings

Water meters

Internet

Asmartcity isanurbandevelopmentvisiontointegrateinformationandcommunicationtechnology (ICT)andInternetofthings (IoT)technologyinasecure fashiontomanageacity'sassets.Source:Wikipedia

SmartCity

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Schools,libraries,transportationsystems,hospitals,powerplants,watersupplynetworks,lawenforcement,streetlighting,etc.

ICTApplicationsinaConnectedSmartCity

ElectricitySavingsinStreetLighting

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#1#2 #3 #4 #5

#6 #7 #8

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ExistingHPSLamps(Dec2010)

NewLEDLamps(June2012)

People/carsareclearlyvisibleunderthewhiteLEDlight. 23

HPSvs LED

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ICT-basedLightingIntensitycontrol(80%)

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0

1

2

3

45:

00P

M

6:30

PM

8:00

PM

9:30

PM

11:0

0PM

12:3

0AM

2:00

AM

3:30

AM

5:00

AM

6:30

AM

8:00

AM

InfraredSensorsMonitorTrafficPo

wer

Con

sum

ptio

n(k

W)

ICT-basedcontroltodimlightsto50%

HPS lights

LED Lights

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HPSvs LEDMonthlyElectricityConsumption

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecHPS(2011) 1,510 1,289 1,300 1,116 1,027 903 972 1,123 1,210 1,384 1,444 1,552

LED(2012) 444 371 319 264 253 222 240 275 306 364 397 433

0

200

400

600

800

1,000

1,200

1,400

1,600

1,800

Mon

thlyElectric

ityCon

sumption(kWh)

• Averageelectricitysavingsof75% wasexperiencedaftertheinstallation.• AvoidedCO2emissionwas6,127kg/year.

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Control Platform

Gateway Smart Building

SmartTrafficFlowMonitoring&Control

PublicSafetyinaSustainableSmartCity

SpeedingViolationMonitoring

LicensePlateReading

OutdoorCameraView(Street)

Location: Arlington, VA

Building type:Office

View:Street

Point of contact:Building Engineer (xxx-xxx-xxxx)

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IndoorCameraView(Shop)

Location: Alexandria, VA

Building type:Office

View:Indoor

Point of contact:Building Engineer (xxx-xxx-xxxx)

OutdoorCameraView(BuildingPerimeter)

Location: Alexandria, VA

Building type:Academic

View:Perimeter

Point of contact:Building Engineer (xxx-xxx-xxxx)

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AllSensorsVisiblefromoneDashboard

…

HVAC Lighting load Plug load

Power meter PV & storage

Security camera

Water meter

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SmartCityConnectedCommunity

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EvolutionoftheGrid

Source: Altalink, Alberta, Canada33

SmartGrid

Source: EPRI34

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CommercialBusinessforDeployment

www.bemcontrols.com

ThankYou

ProfessorSaifur RahmanDirector,AdvancedResearchInstitutewww.saifurrahman.org