EU Overview of Meter Configuration in Relation to Renewable Energy Systems

Ion Lungu, Director Electricity Supply, Dan Apetrei, Metering

Engineer,Electrica SA, Romania

About Renewable

Renewable vs. fossilDefinition

Oil Exploration and production, stockpile, improvement of heavy oil, improvement of recovery rate in oil wells, usage of tar sand and oil shale, etc.

Natural gas

Exploration and production, stockpile, etc.

Coal Fluidised bed combustion, colloid fuel, gasification, liquefaction, etc.

Geothermal

Heat water power generation, volcano power generation, multi-usage, etc.

Solar Solar cooling, solar heating, solar water heating, solar heat power generation, photovoltaics, etc.

Marine Wave power generation, ocean thermal energy conversion systems, etc.

Wind Wind power generationBiomass Usage of creatures and their produced materials, usage

of organic waste, etc.

Classification

Fossil energy

Renewable energy

Renewable target by countrynb Country Hydro Wind Biomass GeothermalTotal 2010 target

1 Belgium 0,5 0 1,1 0 1,6 62 Dannemark 0,1 12,3 4,8 0 17,2 293 Germany 4,1 1,6 1,1,% 0 6,8 12,54 Greece 6,9 0,8 0 0 7,2 20,15 Spain 13,1 2,1 1,0 0 16,2 29,46 France 12,5 0 0,6 0 13,1 217 Ireland 3,5 1,0 0,4 0 4,9 13,28 Italy 16 0,2 0,7 1,7 18,6 259 Liechtenstein 10,2 2,3 4,8 0 17,3 5,7

10 Nederlands 0,2 0,9 3,6 0 4,7 911 Austria 67,3 0,1 2,6 0 70 78,112 Portugal 25,9 0,4 3,5 0,2 30 3913 Finland 20,9 0,1 12,2 0 33,3 31,514 Sweden 54,1 0,3 2,7 0 57,1 6015 UK 1,4 0,3 1,2 0 2,8 1016 UE 12,4 0,9 1,5 0,2 14,9 22

Metering

Metering system model for balancing market

metersmultiplex

communicatioonperipheral

communication channel

Server

Main features of the metering system related to renewable

• Two way measurement• Load profile• AMR• TOU• Maximum Demand• Quality survey

Typical small metering system

PABXBarlad

Barlad

PABX

PABXNegresti

NegrestiTibanesti

Munteni

Tr 100

tr 20

PABXHusi

server comunicatie

Munteni Delea

tr 20

tr 110

Crang

Glavanesti

Simila1

Murgeni

Rosieti

Rediu

Simila

AT220/110

Rosiesti

CFS1

tr2 110

Vaslui1

tr1 110

CTU2

CTU1

CFS2

Vaslui2i

Rediu2

Rediu1

Husi2

Husi1

NegrestiVaslui

Iasi Sud

IAMC1

Hitrom

Mecanica

tr 20

tr 110

Munteni1

Vastex

tr 20

tr 100

Munteni2

Troleu

Varotex

IRB

tr3

6KV

tr1

6KV

AB

RO

M

VA

RO

TE

X

IEP

AM

SI A

PT

43

tr2

6KV

modem

cartelamultiport

125

137

126

341

HusiCioara

tr 20

tr 100

Vetrisoaia

Munteni 2

Munteni 1

316

506

133134108

135

136130

Subsidiary integration

replicator

replicatorreplicator

replicator

replicator

Alba Iulia

Miercurea Ciuc

Sf. Gheorghe

Brasov

Sibiu

Targu Mures

Subsidiarydatabase

brachdatabase

brachdatabase

brachdatabase

brachdatabase

brachdatabase

brachdatabase

Electrica integration

South VPN ring

West VPN ring

database server/communication server

WEB server

replicator

replicatorreplicator

replicator

replicator

Alba Iulia

Miercurea Ciuc

Sf. Gheorghe

Brasov

Sibiu

Targu Mures

Subsidiarydatabase

brachdataba

se

brachdataba

se

brachdataba

se

brachdataba

se

brachdataba

sebrachdataba

se

replicator

replicator

replicator

Bucuresti

Ilfov

Muntenia Sud

Giurgiu

Subsidiarydatabase

brachdataba

se

brachdataba

se

brachdataba

se

brachdataba

se

replicator

replicatorreplicator

replicator

replicator

Bistrita

Oradea

Cluj

Transilvania Nord

Zalau

Baia MAre

Subsidiarydatabase

brachdataba

se

brachdataba

se

brachdataba

se

brachdataba

se

brachdataba

sebrachdataba

se

replicator

replicatorreplicator

replicator

replicator

Prahova

Buzau

Galati

Ploiesti

Braila

Focsani

Subsidiarydatabase

brachdataba

se

brachdataba

se

brachdataba

se

brachdataba

se

brachdataba

sebrachdataba

se

Hydro energy

Is automated meter reading necessary?

Hydro production June 2005 by subsidiary

nb Subsidiary Hydro production small HydroEnergy sold [%] Hydro [%] small Hydro1 Banat 32,908.52 1,987.37 288,964.03 11.39% 0.69%2 Dobrogea 63.30 63.30 191,101.80 0.03% 0.03%3 Moldova 183,136.48 4,835.03 318,296.37 57.54% 1.52%4 Muntenia Nord 79,562.27 0.00 338,159.88 23.53% 0.00%5 Muntenia Sud 2,227.20 2,227.20 395,920.33 0.56% 0.56%6 Oltenia 621,991.54 0.00 387,684.33 160.44% 0.00%7 Transilvania Nord 22,299.20 0.00 114,687.27 19.44% 0.00%8 Transilvania Sud 51,618.19 13,567.09 322,433.94 16.01% 4.21%9 Electrica 993,806.70 22,679.99 2,357,247.95 42.16% 0.96%

Balancing market chart

Hydro generation during June 2005

0

500

1000

1500

2000

2500

1 47 93 139 185 231 277 323 369 415 461 507 553 599 645 691

Hour

Ave

rag

e P

ow

er [

MW

]

PV energy

Would quality survey be a concern for metering the renewable?

Is two way metering necessary?

Solar room Targoviste (scheme)

Solar room (quality survey)

Inverters, metering equip…

Voltage THD

1.8%

0.9%

0.0%05/21/2005 02:44:54 PM to 05/21/2005 03:01:46 PM

Harmonics Trend Distortion: THDModel 7100

Targoviste 21.05.2005 UVT

Va

Current waveform and harmonics10.0A

0.0A

-10.0A

350.0V

0.0V

-350.0V1000.00 us/div0.00ns 20.00ms

Snapshot Waveform Model 7100

Targoviste 21.05.2005 UVT 05/21/2005 02:45:09.00 PM

Three Phase Wye

0.0%

2.0%

4.0%

50Hz 2450Hz

Ic

Distortion: THD=8.15% Odd=8.08% Even=1.00%

Energy delivered

Energy received

Meter requirements

What are the meter requirements depending on power generated

meter requirment under 50KW between 50KW and 500KW

between 500KW and 2 MW

above 2MW

two way measurement

no no yes yes

load profile no yes yes yesAMR no no yes yesTOU yes yes yes yesMaximum Demend yes yes yes yes

Quality survey no no no yes

power generated