1. Christian Elbe Ernst Schmautzer
Automated Electrical Energy Analysis for Domestic Consumers based on Smart Meters
Christian Elbe
Ernst Schmautzer
This project is funded by the “Klima- und Energiefonds” and is realized within the programme „ENERGIE DER ZUKUNFT“.

2. Overview Introduction Automated electrical energy analyis
Gathering measuring data by smart meters
Conclusion

3. Baseline Conflict
Total power consumption
Comparison not possible

4. Automated electrical energy analysis

5. Concept

6. Nonintrusive Load Monitoring
Changes of active and reactive power of electrical appliances
Major electrical appliances
Recurring patterns of load curve
Frequent on/off periods

7. Gathering Measuring Data by Smart Meters
At least
Average P, Q and U per phase
Synchronous data collection
Measuring interval ≤ 1 second

8. Interfaces of Smart Meters
max. resolution P/Q per phase
max. resolution voltage
Service-Interface
1-5 seconds
pulse indication
up to pulses per kWh or kvar
n.a.
Multipurpose Expansion Port
P: 2-4 seconds
wire-connected (PLC)
inhouse:
1 second,
external:
15-minute-average
n.a.,
15 minutes

9. First Results of Automated Energy Analysis
Scope
6 domestic consumers, period: 2 weeks
Average total detection rate
Investigated: 7 electrical devices + base load
50-80% of total power consumption detected
Planned improvements
Detection of further electrical devices
Automated adaption of algorithm

10. Conclusion Analysis of total power consumption
Special expertise needed
Automated energy analysis
Detection rate: 50% - 80%
Gathering data by smart meters
Interfaces with adequate resolution for P,Q,U are required

11. christian.elbe@tugraz.at +43 316 873 7562
Automated Electrical Energy Analysis for Domestic Consumers based on Smart Meters
This project is funded by the “Klima- und Energiefonds” and is realized within the programme „ENERGIE DER ZUKUNFT“.