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Amy BryanDirector of Residential MarketingJackson EMC
Michelle Simmons, Oglethorpe Power Co.
Tristan de Frondeville, SkyCentrics
Bill Hosken, AO Smith
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What is the CEA – 2045 Standard?
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Upfront cost practical for mainstream retail(Future grid
connectivity is uncertain, and no interest from the consumer)
Communication technologies-Diverse – different needs and
capabilities in different regions
Evolving – shorter expected service life than the appliances
Diverse demand response use cases(Modules provide an opportunity
for housing “logic”)
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Standard Modular Interface for Demand Response
Field evaluation of the standard
Products that support the standard
Operated in active DR programsEvaluate capabilities-
All kinds of DR systems and programs
Technology evolution without impacting consumer products
Single communication module for all end devices
Potential of no electrician or utility service call to add
device into program
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Provide-Cost effective way for residential products to be made
smart grid ready, off-the-shelf
Modular interface flexibility in the selection of communication
technologies
Ease of DR program participation, self-install, no truck
roll
Accommodate rapid technology evolution to avoid appliance
obsolescence related to changing communication technologies
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10 Grid-enabled electric water heaters
Water heater monitorWater flow
Inlet and Outlet temperature
Current and Voltage Measurement
SkyCentrics CEA-2045 load management device
EPRI CEA-2045 interface monitor
Term of research one year after installation
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Demonstrate use of CEA-2045 load control protocol
Measure load control impact
Verify consumer comfort
Investigate direction of future water heating load control
Maintain residential water heating revenue
Evaluate cutting edge demand response technology
Collaborate and share results with 20 utilities nationwide
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Monitor in supply line measuring current and voltage
Temperature Sensors
Water flow Sensor
Customer Load Control Install
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Plug & play
Wi-Fi setup
Account setup
About the same level of difficulty as internet installation
SkyCentrics CTA-2045AC (USNAP) module
AO Smith CTA-2045Port Adaptor
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0
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
4,500
5,000
Ener
gy (
Wh
)
Res-2/2
Res-1/0
Res-2/2
Res-2/3
Res-2/0
Res-2/1
Res-2/1
Res-2/0
Res-2/1
Office
Averaged380 kWh for
month
Averaged310 W
across peak
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Load Up
Load Shed
Load Up
Load Shed
Ensure Comfort
Recovery
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0
100
200
300
400
500
600
700
800
Ene
rgy
(Wh
)
Controlled Uncontrolled
14:30 - 15:00 Load Up
440 Watts
15:00 - 18:00 Load Shed
100 Watts
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0
200
400
600
800
1,000
1,200
1,400
1,600
Ene
rgy
(Wh
)
Controlled Uncontrolled
5:15 – 5:45 Load Up
480 Watts
6:00 - 9:00 Load Shed
400 Watts
End Shed Rebound
1,020 Watts
16:15 - 16:45 Load Up
250 Watts
17:00 - 21:00 Load Shed
210 Watts
End Shed Rebound
920 Watts
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At 380 kWh per month, water heating is just under 30% of
residential electric load
Grid control of water heaters could Shape the load to
accommodate more renewable generation
Be utilized to respond to variations in renewable output
Reduce peak generation needs
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0.00
0.20
0.40
0.60
0.80
1.00
1.20
Solar: 16%
Base Generation: 61%
Dispatched: 23%
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0.00
0.20
0.40
0.60
0.80
1.00
1.20
Base Generation: 61%
Solar: 20%
Dispatched: 19%
25% MoreSolar
4% Less Peak Load
8% Less Dispatchablegeneration
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Questions?
