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Outline
• Problem statement
• Balancing
• Network issues
• Conclusions
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Decentral Supply Scenario(Energy report 2008, Meeuwsen TU/e)
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Power system issues (1)
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Processing operational information
Controlling flows and maintain stability(real-time control)
Balancing supply-demand at all times (reliable operation)
Design and planning
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Power system issues (2)
Wind variation!
Sunshine variation!
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050
100150
200250
300350 0
510
1520
0
50
100
Time of the dayDay of the year
Pri
ce [
Eur
/MW
h]
20
40
60
80
100
120
140
Power system issues (3)
Market prices and market participation!
What is the value of flexibility?
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• Can supply and demand be matched in real-time?
• Can renewables be efficiently integrated in the power
system?
• Is quality of service (voltage and power) guaranteed?
• Do markets for energy and ancillary services perform
well?
• How to engage the customer in the process?
• Is there sufficient electrical network capacity?
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Key questions for research
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The use of agents for power routing and power matching
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Pilot “Your Energy Moment” – First results
Result: 50% of the cycles are ‘smart’: the WM is turned on when electricity is locally generated via PV panels.
Consumption
WM Consumption
Your Energy Moment: Jan. 2013 till Aug. 2013
Pro
du
ctio
n &
Co
nsu
mp
tio
n PV Production
Average Washing Machine Consumption (week-days)
EU household
YEM household
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Voltage profiles along feeders with and without PV
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Local Inverter control to prevent overvoltages
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Multi-objective Optimisation in EU project
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Overlay control for fair power curtailment
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Conclusions
• PV has to be matched with demand• Local balancing may help • PV gives overvoltages in distribution networks• Mitigation measures must include demand
response otherwise curtailment is inevitable• Smart Grid functionalities are essential
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• Click to edit Master text styles– Second level
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