Smart Metering - the Current Situation in Slovenia · 2012-11-26 · Elektroinštitut Milan Vidmar, Ljubljana, Slovenia 3 Regulatory requirements for the deployment of advanced metering

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ELEKTROIN{TITUT MILAN VIDMAR

Smart Metering - the Current

Situation in Slovenia

Andrej Souvent

Elektroinštitut Milan Vidmar, Ljubljana, Slovenia

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What are the drivers for meter change?

Requirements for energy saving

A goal without feedback is useless.

Requirements for energy efficiency

To use electricity efficient primarily means to use it at the right time!

Lord Kelvin: “If you can not measure it, you can not improve it!”

Requirements for a greater proportion of energy from renewable sources

Integration of distributed energy resources also into the low voltage grid!

New technologies, for examples:

• electric cars.

(Quater)hourly-based time-stamped measurements are needed!

Power flow tracing and power quality monitoring at the low voltage grid will be

necessary!

Implementation of Demand Side Management / Demand Response is a must!

At least, billing on the basis of actual consumption shall be performed frequently

enough.


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Regulatory requirements for the deployment of advanced metering

• DIRECTIVE 2009/72/EC concerning common rules for the internal market in

electricity:

Where an economic assessment of the long-term costs and benefits has been made,

at least 80% of those consumers who have been assessed positively, have to be

equipped with intelligent metering systems for electricity by 2020.


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Distribution System OperatorsDSO is responsible for metering.

• 11.500 industrial customers (P > 41 kW):

• All have already been equipped with AMR meters.

• Legislation binds DSOs to collect daily load profiles.

• 900.000 residential and small bussines customers:

• 80 % Ferraris meters, 6 % AMI and 14% other electronic meters (AMR,...).

• Legislation binds DSOs to do meter reading just once a year.


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AMI System Architecture


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Communication ports of metering installation


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Functional requirements1. System-wide synchronized clock =>

synchronized readings and load

profiles. Accurate tariffs.

2. Remote meter reading and

management.

3. Different options for informing users

about their consumption, tariffs, etc.

(WEB postals, IHDs,...).

4. Remote user

disconnection/reconnection and power

limitation.

5. Time-of-use tariffs, dynamic tarrifs.

6. Multi-utility infrastructure (gas, heat

and water meters).

7. Measurements of losses. Fraud and

theft detection.

8. Power quality monitoring (blackouts,

brownouts logging,...).

N

Wlosses= WTS - ∑ WMPii=1


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Some highlights regarding the technology

• Communication technology:

• Smart meters to data concentrator: the combination of PLC and

GPRS will be used (95% PLC, 5% GPRS)

• Data concentrators to MDMS: GPRS or other networks – like

WiMAX, Ethernet, etc. – od course, if available in TS.

• Performance requirements call for an appropriate quality of services for

the mobile operators networks and for an appropriate power quality on

low voltage grid (PLC).

• Cyber security, data safety, data handling and data protection must be

considered very carefully.

• Equipment interoperability between at least two vendors is required !

• Life expectancy of the system sholud be at least 15 years.


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AMI pilot projects

Various pilot projects have been carried out for several years. The biggest, for

example, are:

• Domžale region (Elektro Ljubljana): 17.000 MP, 370 TS

• Žiri region (Elektro Ljubljana): 6.000 MP, 246 TS

• Some highlights of the projects include:

• monthly billing on the basis of actual consumption,

•15-minute load profiles for all customers,

• customers can track their consumption with a WEB portal,

• measurements of losses - fraud and theft detection,

• multi-utility (gas metering),

• performance test were carried out (PLC and GPRS communications).

All DSOs have already operational MDM systems.


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Smart Meters Rollouts

Elektro Gorenjska is preparing for a full scale rollout (80.000 metering points).

• Deployment of the system will take 5 years.

• Equipment interoperability between two vendors is required.

• Iskraemeco an Landis+Gyr were contracted to deploy the system.

• The project is in the Site Acceptance Test phase,

• interoperability tests are also performed.

Other DSOs should follow since there is not much time left till 2020!


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The Vision – SmartGrids 2 SmartHome

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Independent

Services

ProviderSupplier

Supplier

Energy

Information

Infrastructure

eCar

charging station

Market

organizers

DSOs


• The total investment costs, evenly distributed over perriod of 5

years, were assessed at 207 million €.

• Global costs per metering point: 230 €/MP

• Cost benefit analysis shows that the investment into the AMI system

is justified:

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The Economics

Perspective Payback IRR NPV

DSO 15 years 10,4 % 66 million €

Macroeconomics 12 years 15,3 % 161 million €


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Thank you for your attention!

Andrej Souvent

E-mail: [email protected]

Telefon: +386-(0)1-474-2903

mailto:[email protected]

Documents

Smart Metering - the Current Situation in Slovenia · 2012-11-26 · Elektroinštitut Milan Vidmar, Ljubljana, Slovenia 3 Regulatory requirements for the deployment of advanced metering