Enabling Flexibility Through Demand Response

Transcription

1 Enabling Flexibility Through Demand Response Britton Sanderford, Chief Technology Officer, Sensus Metering Systems Smart Metering East Coast, Raleigh NC

2 DR MASS ADOPTION IMPEDIMENTS UTILITY Must Enter A New Business Complexity Similar to AMI Meter Roll-Out Requires Trained Personnel Special Field Tools For Address Binding Knowledge of IP Addressing Call Support Center & Troubleshooting New Risk in Mass Adoption: Loss Of Control DR is equivalent to Generation CUSTOMER High Initial Cost Delays Breakeven, 8 12 years $200 - $250 Thermostat (PCT) $ 50 - $100 Labor $250 - $350 Total per Thermostat Customer Convenience Must Have Override Button One-way/ Paging Based DR Does Not Provide Feedback Two-way Provides Attraction VIA Customer Interaction (Web/Displays) THERMOSTAT & LOAD CONTROLLER VENDORS Today Must Support Multiple Communication Methods Increases Their Cost & Market Risk Decreases Scale & Profitability Drives Price Up

3 HOME COMMUNICATIONS STANDARD OVER THE LAST 20 YEARS BETA Vs. VHS --- TIMES TEN X 10 LonWorks CEBus HomePlug BAC Net Z-Wave FM Sub Carrier (Previously Mandated by CAL PUC) ZigBee / ZigBee Pro / ZigBee Smart Energy Profile WiMax Bluetooth High Power Version for HAN GainSpan (Low power )

4 SYSTEM-WIDE CONTROLLABLE LOADS 20% 5% 30% Reducible Load 50% 60% % Controllable 8am 5 pm 50% 40% C&I 10% Small Commercial 50% Residential Total Utility Load Distribution

5 RESIDENTIAL CONTROLLABLE LOADS 5-30 Amp Load Controlled Thermostat

6 DEMAND RESPONSE INTEROPERABILITY = SCALE = T-56 Connector T-56 C12.22 Extended User Defined Table, Register Endpoint Data Type Identification Service Read / Write Service Logon / Logoff Service Status Service Registration / De-Registration Service Configuration / Link Control vendor s communication cloud Router ARP C12.22 Optional TCP /IP EMS IPv6 Vendor s Backend

7 T-56 INTERFACE COMPLIANCE minimum definition Connector 5.6 cents in volume (low product burden) Pin Out & Electrical Specification SPI Bus High Rate Mid Rate Ground Power Voltage Power Fail Reserved 3 Pin (on most PC s) Active Low Active Low 3.3V (5%), 30mA, 150mA Peak 100mS of Endpoint Active Low PCB Size & Connector Position Format Length, Message Type, Data, Payload, Error Detection Defined Payload Endpoint Type, Load (in Amps), MAC IP Address AMI Vendor s Native Communication or ZigBee or Any RF Physical Layer T-56 Any Vendor s Comm

8 DR MASS ADOPTION VISION Managed by utility via messages in monthly billing statements Customer bill shows estimated savings if you participates in the DR program Offers DR participation check box Homeowner buys T-56 compliant thermostat and installs or has it installed Utility mails T-56 compliant card in bubble pack with next monthly statement Utility scans bar code label affixed to comm card bubble pack before mailing Utility stores into Data Base with customer ID This step automates address binding Homeowner inserts the T-56 compliant card into the Display, thermostat, load controller, hot water heater, etc Endpoints self-configure ID binding, endpoint type (Thermostat, load xx Amps) usnap

9 T-56 COMPLIANT COMM MODULE CARDS CAN ADDRESS ANY IN-HOME APPLICATION Hot Water Heater Advanced Thermostat 30 Amp Load Controller Touch Display TOWER Or Collector Or Repeater Any Vendor s Communication Cloud Router /ARP C12.22 Virtual Device (optional) TCP /IP Utility EMS System Thermostat as Gateway Vendor s Back-End 5 Amp Load Controller Energy Speedometer Native AMI Communications Or Utility Specified Physical Layer PHEV

10 LOCAL DISTRIBUTED DR CONTROLS Push Decision to Endpoints; Extremely Low Critical Peak Latency <10 sec & Low BW Scheduled Load Control Green During Low Rate Sends 5 Use Rates and Time Of Rate Change Unplanned / Critical Peak Event Meter Stores TOU Schedule Vendor s Back-End Critical Peak (amount of load) Rates From Utility Systems Direct Rate Schedule Red During Peak In-direct Tower or Collector

11 ZIGBEE RANGE EXTENDER FOR BASEMENTS, APARTMENT BUILDINGS AND C&I CUSTOMERS 2 Watts MHz Penetration - Where 200 mw 2.4 GHz Zigbee Can t Reach 2 Watt FlexPort 2 Watt FlexPort 155 db Link Margin Tower or AMI Collector ZigBee 105 db Link Margin X ZigBee When Zigbee Can t Reach Thermostat Load Controller 2.4 GHz has 8 db More Path Loss Plus WiFi Interference Thermostat Load Controller Hot Water Heater Display Hot Water Heater Display

12 EXAMPLE OF RF SIGNAL PATH IN HIGH RISE BUILDINGS RF Penetrates Windows & Egresses 2 Watts Redundant Paths Tower or AMI Collector To In Home Display ZigBee Range Extender Wire Chase/ Plumbing Elevator Shaft Stairwell ZigBee Powered Display (or other powered device) RF Friendly Paths

13 POWERED DISPLAY ACTS AS TRANSLATOR ENABLES MOST RECENT VERSION OF ZIGBEE / HAN Outbound 25 khz 25 khz Reserved For HAN Tower to Endpoint Other Display Text Display Powered Or Battery Operated Meter Tower or AMI Collector Native AMI Communications T56 Card ZigBee Gateway Card Display Acts As Translator Always Supports Most Recent Version of ZigBee Water Heater Powered ZigBee Devices May Repeat ZigBee Message 2.4 GHz Local Network Refrigerator

14 DR INDIVIDUAL CUSTOMER INFORMATION

15 DR MASS ADOPTION IMPEDIMENTS RESOLVED - UTILITY - UTILITY DR algorithm "Smarts" reside in Utility owned meter or T-56 card Can be code downloaded to accommodate future innovations Homeowner not responsible for special address binding No technicians with special field tool Utility does not have to enter the thermostat installation and maint. business A site can provide a self-help section, endpoint vendor list and recommend 3rd party service providers if needed. Green LED provides simple indication that T56 card connected with meter T-56 compliant cards can match virtually any AMI communications Utility case does not hinge on adoption penetration nor suffer stranded meter assets due to HAN obsolescence Minimal capital approach; no HAN comm module in meter - saves $10 per meter

16 DR MASS ADOPTION IMPEDIMENTS RESOLVED - CUSTOMER - CUSTOMER Quick ROI, Low-end thermostat could be mass marketed at $50 T-56 compliant card can be manufactured in mass and price at $15 to $20 T-56 compliant card is sent directly to the homeowner by Utility, no mark-up by thermostat manufacturer T-56 supports two-way, enabling curtailment override button & friendly web access

17 DR MASS ADOPTION IMPEDIMENTS RESOLVED - THERMOSTAT/LOAD CONTROLLER MANUFACTURER - THERMOSTAT/ LOAD CONTROLLER MANUFACTURER Can achieve scale from DR Mass Adoption Avoid engineering customization and product launch delays Reduce low volume SKUs which reduce profitability Avoid AMI communications section/ marketing risk Any T-56 compliant thermostat will work on any AMI or HAN or home automation network - this will stimulate multiple supplier participation Vendors will offer feature differentiated good / better / best products

18 WILLING PARTICIPANTS Providers RiteTemp Wayne Dalton Corp AzTech Associates, Inc Willing Providers Honeywell, Inc Home Automation Inc (HAI)