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Transmission & Distribution of Electricity – The Challenge Peter Vaessen
CWI in bedrijf, Amsterdam, November 11th 2010
2
The digital dilemma
Data tsunami Networking/Sensors functionality
New equipment and players
Security risk ?
3
Acting on aging assets
Grey wave from the 1970-ties
Less money available Different component
life cycles Maintenance / Replacement ?
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European Power System
495 million people served 3500 TWh/year
760 GW installed capacity 250.000 km HV network Approx. 6.000.000 km MV & LV network
Largest business sector (capital) Largest man-made system
Approximately 1500 € investment per EU citizen
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Increased bulk transmission
DC links and interconnections
Control
50GW wind in the North?
30GW sun in the south?
Source: Nexans
Smart Equipmt.
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Wind at sea impact
Ready for large scale deployment
AC and DC solutions Grid operation effects Sea-grid ?
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Doing more with less
Dynamic rating needs sensors & rules
Overhead underground Public voice = CAVE Use existing right of way
wintrack
increasecapacity
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An internet-like distribution grid
Central & local sources
Smart (power)electronics
Central & localintelligence
Integration of new applications
Real-time information & active participation
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Solar Power up
Exponential growth Prices drop fast
from 5 to 2.5€/Wp in 2 year
Grid parity: 2015 ?
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E-mobility (storage) a growing force
Means of decoupling generation & demand
Controllability issue Slow take off …or not ?
Opel Ampera
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PowerMatching City - Full Concept Smart Grid Solution
(partners: KEMA, ECN, HUMIQ, RWE/Essent)
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430320
120.0007.000.000
100.000.000
The pyramid Challenge (Netherlands)
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Process information challenge
Assetmanagement
Market facilitation
Operation
Component control
ms + 1000 bits > 100 ms
Sec. A4 GByte <10 years
Responsetime
• Data need• Trends, Analyses Aggregation
• Measurements• Feed-in• Billing• Energy saving
• Measuring information• Grid information• Power Quality• HV-MV-LV
• Micro CHP• Wind turbine• Configuration (switching)• Measurements• Power Quality• Voltage control• Protection
Information Control parameters
Data size Datalifetime
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Even more challenges
-4000
-2000
0
2000
4000
6000
8000
10000
12000
2010 2020 2030 2040 2050 2060
Jaar
Verb
ruik
MW
h Jaar totaal
Winter verbruik
Zomer verbruik
Lente/herfst verbruik
-4
-3
-2
-1
0
1
2
3
4
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Customer profile
Scenario / Prediction Voltage at connection point
Feeder voltage profile
connection point1 30 60
volta
ge
load
generation kW
time of day
year
Con
sum
ptio
n M
Wh
Year (total)WinterSummerSpring/Autumn
