the ip-enabled grid – more than just smart meters
Post on 20-Jan-2016
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The IP-enabled grid – more than just smart meters
Henning Schulzrinne
Department of Computer Science
Columbia University
Overview
• Motivations:– utilities:
• demand reduction (DR) cuts expensive peak power• smart meters avoid meter readers, better outage
information• storage management plug-in hybrids as energy storage
– consumers:• cost reduction: DR, automated temperature adjustment• convenience: pre-heat/cool home, vacation home monitoring
• Integration with other communication technologies
Components and Interactions
BPL
“what’s the projected cost of a kWh at 1500?”
“wash at 1900”
“charge at 2300”
“alert: power outage!”
Future developments
• Appliances and lights with built-in networks– Zigbee (802.15.4), powerline
Ethernet?
• Smarter commercial buildings– quantitative standards for energy
efficiency rather than LEED list– occupancy sensors for lighting and
heating
more energy efficient than
electronic
more energy efficient than
electronic
Need for integration
• Notification
• Data aggregation– feed energy usage into neighborhood data
base
• Other– use cell phone GPS to predict home arrival?– use calendar to track absences?
power outage at your parents’
house
power outage at your parents’
house
What’s needed?• Avoiding stovepipe systems• No maintenance, no configuration
– literally, plug-and-play
• Protocol and technology needs:– notification of events– control of devices (heating, appliances, vehicle, …)– discovery of other sensors and devices
• Some existing efforts, but often legacy– designed for commercial use (e.g., BACnet)– specific to one L2 technology (e.g., Zigbee)– cumbersome security (manual password configuration)
A role for SIP?
NOTIFY“power outage!”
MESSAGE“start wash!”
NOTIFY“new rate: 15c/kWh”
Conclusion
• Consider system as a whole– including home & building security
• Integration with other services– intelligence may not be in meter– not just home-local
• Security and zero maintenance: designed in, not bolted on
• Role for existing IP communications protocols?
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