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G3-PLC Pilot & System Security
Amsterdam, October 10th 2012
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Currently Enexis is installing GPRS meters; a choice has to be
made which technology to deploy during large scale roll out
By law every new meter is a smart
meter
Most installations of smart meters
are spread out over the grid area
• Customer requests
• Regular replacements
• Meter Failures
Today 220.000 smart meters are in
operation
Roll out speed is 1000 meters a
day
Large scale roll-out Small scale roll out Roll-out schedule of Enexis
’10 ’18 ’17 ’16 ’15 ’14 ’11 ’12 ’13
700
600
300
500
200
400
0
100
To be chosen
GPRS
# of meters, gas & electricity
Only GPRS in 2011 - 2014
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PLC will be the most widely used data
communication technology in Europe
Not only for smart metering, but also for
smart grid applications
PLC is developing rapidly because
European member states need to meet
2020 targets
New PLC generations provide:
• Interoperability
• Open standards
• High performance
Although GPRS works very well, PLC could provide a more
cost effective alternative
… GPRS meters are more expensive
than PLC meters
… GPRS data communication costs
are high
… There is a vendor lock-in with the
operator (fixed sim card)
PLC could work just as well but with lower
TCO GPRS works very well, but……..
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G3-PLC has an impressive design
that is attracting attention globally
PLC
communication
should be
reliable and
compliant
Must comply with strict
Dutch security
guidelines
Performance is at
least equal to GPRS
Meters should be
interoperable
PLC solution
should be
widely
available
Enexis has chosen G3-PLC as the best PLC solution
Requirements of Enexis
Enexis plans to start
large scale roll out
around 2015 and
finish around 2020
PLC solution
should be in
time to meet
2020 target
Multiple vendors
should develop
components
4 reasons why Enexis has chosen
G3-PLC
G3-PLC is a very new technology,
but timing is optimal to meet 2020
end targets
ERDF - a major DSO with global
influence - is driving G3-PLC
G3-PLC is an international open
ITU standard
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Implement full security
“Smart metering should be as secure as
electronic banking”
- Dutch Minister of Economic Affairs -
Enexis has started a G3-PLC pilot that consists of two steps
No conventional ‘store & forward’ DC but a
Gateway supporting all-IP connections
Interoperability
Two meter vendors supply the G3-PLC meters
G3 Gateway
METER
DC
IS
Get first experience in G3-PLC and verify the
performance of G3-PLC
Time line
Installation
in
August ‘12
Currently
being tested
Installation
in January
‘13
ST
EP
1
ST
EP
2
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G3 Gateway
We will use a G3 Gateway to reduce complexity and increase
transparency
identification identification
communication
Less
complexity in a
middle layer
Secure:
no keys or
data are
stored on the
gateway
Standard
DLMS
communication
to meters
Direct
communication
and feedback
between IS
and meters
LV
substation
GPRS G3-PLC
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G3 Gateway
GPRS
Crypto server
Database
GPRS: GEA1-3 G3-PLC: AES CCM
Application
layer
Data link layer
Security will be according to the latest Dutch Security standard
DSMR 4
LV
substation
G3-PLC
End to End AUTHENTICATION → AES-GMAC (HLS security)
End to End ENCRYPTION → AES-GCM
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The pilot grid is a normal Enexis grid
Meters were randomly installed without considering the grid topology
35% of all houses in the pilot area have a smart G3 meter installed
As a first step Enexis has installed 250 G3-PLC meters to
verify performance and provide a reference
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Preliminary results after installation in August are very good
and Enexis strives for even better results!
% of meters discovered by
the DC 99%
Performance of data collection
(15 min. values) 98%
Mid
September
100%
End of
September Target
Install some additional meters
as neighbours
2 defect meters
replaced
Further analyses to get to 100% 100%
