residential non-intrusive load monitoring overview
DESCRIPTION
What are the latest developments in the highly charged world of electric energy-efficiency technologies? Get updates on current advancements in LED lighting, air conditioning, non-intrusive monitoring, and moreTRANSCRIPT
![Page 1: Residential Non-Intrusive Load Monitoring Overview](https://reader034.vdocuments.mx/reader034/viewer/2022042602/5590c02a1a28ab31118b4646/html5/thumbnails/1.jpg)
Residential Non-Intrusive Load Monitoring Overview
Presented by Matt Smith, SDG&E, Emerging Technologies
E Source Forum 2014
September 29–October 2, 2014
![Page 2: Residential Non-Intrusive Load Monitoring Overview](https://reader034.vdocuments.mx/reader034/viewer/2022042602/5590c02a1a28ab31118b4646/html5/thumbnails/2.jpg)
How much energy does your refrigerator use?
![Page 3: Residential Non-Intrusive Load Monitoring Overview](https://reader034.vdocuments.mx/reader034/viewer/2022042602/5590c02a1a28ab31118b4646/html5/thumbnails/3.jpg)
Why does it matter?
Utilities • Refine customer rebate
and incentive programs • Qualify new products for
residential rebates • Improve relationships
with customers • Understand customer
behavior to improve capacity planning
• Identify/verify appliances that could participate in Demand Response
Customers • Understand your bill • Plan your monthly budget • Identify/repair/replace
energy “hogs” • Take advantage of rate
structures (TOU/Tiers) • Be able to make a
financial decision for when to use an appliance
![Page 4: Residential Non-Intrusive Load Monitoring Overview](https://reader034.vdocuments.mx/reader034/viewer/2022042602/5590c02a1a28ab31118b4646/html5/thumbnails/4.jpg)
How much energy can we really save? ACEEE analyzed results from 36 different studies between 1995-2010 and found energy savings varied based on the data given to customers
![Page 5: Residential Non-Intrusive Load Monitoring Overview](https://reader034.vdocuments.mx/reader034/viewer/2022042602/5590c02a1a28ab31118b4646/html5/thumbnails/5.jpg)
How do we get that data to residential customers?
Circuit/Plug Monitoring Smart Appliances
Home Area Network / Smart Meter
Electricity Bill Green Button Data
![Page 6: Residential Non-Intrusive Load Monitoring Overview](https://reader034.vdocuments.mx/reader034/viewer/2022042602/5590c02a1a28ab31118b4646/html5/thumbnails/6.jpg)
Can we use smart meter data more intelligently?
wattseeker.com
![Page 7: Residential Non-Intrusive Load Monitoring Overview](https://reader034.vdocuments.mx/reader034/viewer/2022042602/5590c02a1a28ab31118b4646/html5/thumbnails/7.jpg)
What companies are pursuing NILM?
Belkin Enetics
Smappee Detectent
Bidgley Onzo
Blue Line Innovations PlotWatt
Energy Aware Navetas
Intel EEme
? LoadIQ
Verdigris ?
![Page 8: Residential Non-Intrusive Load Monitoring Overview](https://reader034.vdocuments.mx/reader034/viewer/2022042602/5590c02a1a28ab31118b4646/html5/thumbnails/8.jpg)
What did SDG&E do?
• Outfitted 10 Homes • Monitored all of the circuits in the home to get true
energy-usage values • Collected 10-second meter data via an approved HAN
device
• Solicited Disaggregation Vendors • Provided data to the vendors at different frequencies
(10s, 1 minute, 15 minute, 1hr) • Assessed accuracy of their disaggregation
![Page 9: Residential Non-Intrusive Load Monitoring Overview](https://reader034.vdocuments.mx/reader034/viewer/2022042602/5590c02a1a28ab31118b4646/html5/thumbnails/9.jpg)
What did we see in our study?
• Disaggregation accuracy improves with increased input frequency (HAN data better than GB)
• Home survey data is useful but not required • Zigbee & Internet signals are critical • Large and regular loads (pool pumps and electric
vehicles) are the easiest to disaggregate
![Page 10: Residential Non-Intrusive Load Monitoring Overview](https://reader034.vdocuments.mx/reader034/viewer/2022042602/5590c02a1a28ab31118b4646/html5/thumbnails/10.jpg)
EV Disaggregation
![Page 11: Residential Non-Intrusive Load Monitoring Overview](https://reader034.vdocuments.mx/reader034/viewer/2022042602/5590c02a1a28ab31118b4646/html5/thumbnails/11.jpg)
What are the challenges we saw?
• Vendors don’t all detect the same end uses Vendor 1 Vendor 2 Vendor 3 Vendor 4
Fridge X X X Microwave X X EV X X X Pool Pumps X X “Pool” Oven X Laundry “Washer/Dryer” “Cooking/ Laundry” “Tumble Dryer” “Dryer” Dishwasher X Base Load “Background Loads” “Always On” ”Other” ”Base” HVAC X “Heating/Cooling” “HVAC/Water Heating” “AC” WH “Water Heating” “Water Heater” Other “Solar (experimental)” ”Lifestyle”, “Heat”
• Vendors choose to report energy usage on different time scales Vendor 1 Vendor 2 Vendor 3 Vendor 4
Minute X Hour X X Day X X X Month X X
![Page 12: Residential Non-Intrusive Load Monitoring Overview](https://reader034.vdocuments.mx/reader034/viewer/2022042602/5590c02a1a28ab31118b4646/html5/thumbnails/12.jpg)
Additional challenges
• Whole-building measurement frequency needs to be high to disaggregate the smaller appliances
• Higher-frequency data is more expensive • In addition to being more expensive, high-
frequency measurements are also more sensitive to connectivity issues
• We saw 92% connectivity with a HAN gateway connected to the meter reading the meter every 10 seconds. (i.e. 8 out of every 100 readings was missing)
![Page 13: Residential Non-Intrusive Load Monitoring Overview](https://reader034.vdocuments.mx/reader034/viewer/2022042602/5590c02a1a28ab31118b4646/html5/thumbnails/13.jpg)
What’s next for NILM?
• Large-scale field testing: 100s or 1,000s of homes • Include AC run-times from smart thermostat data • Test with sub-one-second active power, apparent
power, and voltage loggers • Evaluate actual energy savings after installing or
repairing equipment • Test disaggregation of gas appliances
![Page 14: Residential Non-Intrusive Load Monitoring Overview](https://reader034.vdocuments.mx/reader034/viewer/2022042602/5590c02a1a28ab31118b4646/html5/thumbnails/14.jpg)
Thank you! Contact: Matt Smith, SDG&E Emerging Technologies
![Page 15: Residential Non-Intrusive Load Monitoring Overview](https://reader034.vdocuments.mx/reader034/viewer/2022042602/5590c02a1a28ab31118b4646/html5/thumbnails/15.jpg)
Accuracy results table