Water supply system of Poznan &

Central Wastewater Treatment Plant

Renewable Energy Sources

Biogas – biofuel (Aquanet for CarboEurope 8.10.2007)

Use of renewable energy frombiogas at facilities operated

by Aquanet: Central Wastewater Treatment Plant in Koziegłowy and Left-Bank Wastewater Treatment Plant

in Poznań.

Biogas - biofuel

Sludge generated as a result ofwastewater treatment processes is

transported to six separate digestersand subjected to anaerobic

digestion. The anaerobic digestionprocessyields biogas. The net

calorific value of biogas amountsto 21.6 MJ/m3

Biogas – biofuel (Aquanet for CarboEurope 8.10.2007)

In August 2007 - ca. 960.000 kW.Annual - 12.365 MW (electricity)

- 16.307 MW (heat)

Environmental and economic effect.

Biogas – biofuel (Aquanet for CarboEurope 8.10.2007)

The environmental effect

- generation of electricity from biogasconsidered to be biofuel (utilisation of100 % biogas generated during thedigestion process)

- elimination of emissions of CH4(methane ) and CO2 (protection ofthe atmosphere and reduction of the„greenhouse effect”)

Biogas – biofuel (Aquanet for CarboEurope 8.10.2007)

The economic effect

- covering 40% of the demand forelectricity (reduced purchase ofelectricity from the municipal powersupplier)

- possibility of selling ‘green power’ inthe market

- obtaining additional reject heat whichis used for process purposes and for theheating of the treatment plant buildingsand facilities.

Biogas – biofuel (Aquanet for CarboEurope 8.10.2007)

Tkank you

for your attention

Biogas – biofuel (Aquanet for CarboEurope 8.10.2007)

Dalkia Poznań Combined Heat

and Plants Joint- stock Company

N°1 in EuropeEnergy services

N° 1 WorldElectricity production

N°1 WorldEnvironmental services

34%66%

DALKIA : TWO SHAREHOLDERSDALKIA : TWO SHAREHOLDERS

LEADER IN ENERGY SERVICESLEADER IN ENERGY SERVICES

Heating and cooling networks

Thermal and multitechnical services

Energy utilities

Facilities Management

Urban lighting

Process maintenance

Sterilization

Installation work

No.1No.1in Energyin Energy

ServicesServices

in Europein Europe

DALKIA INTERNATIONALDALKIA INTERNATIONAL

Southern zone

ArgentinaBrazilChileSpainIsraelItalyMoroccoMexicoPortugal

Northern Europe

GermanyAustriaEstoniaLatviaLithuaniaNorwaySwedenSwitzerland

North Atlantic

BeneluxCanadaUnited- StatesUK

Central and Eastern Europe

BulgariaHungaryPolandCzech RepublicRomaniaSlovakia

Emerging countries

ChinaU.A..ESouth KoreaMalaysiaSingaporeRussia

37countriesOperating in

leader in Europe,

Main partners: Veolia Environnement and EDF

3 000 industrial customers

PositionPosition

Service for Industry

Development and researchDevelopment and research(4,5 million € per year)

Combined Heat and Power

Fuel cell

Sustainable energy

safe keeping of energy

Emission reduction NOx

Sustainable energiesSustainable energiesWood

Biogas

Geothermics

Solar power

Environmental protection management

ISO 14001 certificate in main objects

Quality Attitude „service for environment”

emissions trading CO2 (UK)

DALKIA IN POLANDDALKIA IN POLAND

Headquarters

Urban network

Cogenerated power and heat

Facilities management

Decentralized sources

Power for industries

BRIEF HISTORY BRIEF HISTORY of DALKIA POZNAŃ – ZEC S.Aof DALKIA POZNAŃ – ZEC S.A..

19291929 – Municipal Power Plant – Municipal Power Plant

19481948 – State – State - - ownowneded enterprise enterprise

19919933 – Commerciali – Commercialissationation

20042004 – Privati – Privatissationation

No 1 in Europe

650 Heating and cooling networks

Position

Heating and cooling networks

Generation unitGeneration unit Electric Electric powerpower

Thermal powerThermal power FuelFuel

BC 50 unit 55 MW 126 MW coal

BC 100 unit 100 MW 192 MW coal

BK 100 unit 120.5 MW 140 MW coal

PTWM-180 water boiler - 150 MW heavy-fuel oil

PTWM-150 water boiler - 150 MW heavy-fuel oil

KP1 steam boiler 11.8 MW oil

TOTALTOTAL 275275.5.5 MW MW 769769 MW MW

KAROLIN POWER PLANT GENERATING UNITS

CLIENTS of DALKIA POZNAŃ – ZEC. S.A.

General presentationGeneral presentationElectrabel, SUEZ GroupElectrabel, SUEZ Group

October 2007October 2007CarboEurope PoznańCarboEurope Poznań

Part 1Part 1 SUEZ GroupSUEZ Group

Part 2Part 2 Electrabel in EuropeElectrabel in Europe

Part 3Part 3 Electrabel in PolandElectrabel in Poland

EnerEnergygyEnerEnergygy EnvironmentEnvironmentEnvironmentEnvironment

SUEZSUEZENVIRONMENTENVIRONMENT

SUEZSUEZENVIRONMENTENVIRONMENT

SUEZ SUEZ EENERGY NERGY EUROPEEUROPE

SUEZ SUEZ EENERGY NERGY EUROPEEUROPE

SUEZ SUEZ ENERGY SERVICESENERGY SERVICES

SUEZ SUEZ ENERGY SERVICESENERGY SERVICES

SUEZ ENERGYSUEZ ENERGYINTERNATIONALINTERNATIONALSUEZ ENERGYSUEZ ENERGY

INTERNATIONALINTERNATIONAL

SUEZ Group – StructureSUEZ Group – Structure

4,2 bn EUR 4,2 bn EUR 3 800 employees3 800 employees

35,4 bn EUR 35,4 bn EUR 125 000 employees125 000 employees

2 300 employees 2 300 employees

3 600 employees 3 600 employees

5 200 employees5 200 employees

0,7 bn EUR 0,7 bn EUR

2,1 bn EUR 2,1 bn EUR

1,9 bn EUR 1,9 bn EUR

SUEZ Group – Employment and revenues by regions in 2006.SUEZ Group – Employment and revenues by regions in 2006.

139 000 employees generates 44,3 billion EUR of turnover.

SUEZ Group – Energy generation in 2006SUEZ Group – Energy generation in 2006

60 207 MW of net installed capacity:

including 8 264 MW in construction

including 39% CO2 free, 43% with low CO2

Nuclear12%

Natural gas43%

Oil9%

Hydro22%

Other (w ind,

biomass)5%

Coal9%

Europe without Belgium

32%

North America

9%

Rest of the world

20%South America

16%Belgium

23%

Part 1Part 1 SUEZ GroupSUEZ Group

Part 2Part 2 Electrabel in EuropeElectrabel in Europe

Part 3Part 3 Electrabel in PolandElectrabel in Poland

Netherlands4 711 MW

Belgium13 127 MW

France4 839 MW

Portugal366 MW

Italy2 219 MW

Hungary1 676 MW

Poland1 654 MW

Germany296 MW

Luxemburg376 MW

Electrabel in Europe. Electrabel in Europe. Generation by country.Generation by country.

Spain758 MW

30 021 MW

Status: end 2006

Belgium: hydro: 22 MWbiomass: 256 MWwind: 61 MW wind: +18 MWbiomass +30 MWwind: +130 MW

France:hydro: 3 710 MWwind: 21.5 MWhydro: + 4.5 MWwind: +60 MW

Portugal: hydro: 33 MW wind: 332.5 MWwind: +238 MWwind: +310 MW

Italy:hydro: 129 MWwind: +20 MWwind: +48 MW

Operating, in construction, planned.

Poland:biomass: 160 MWwind: +120 MW

Netherlands: biomass: 42 MW wind: 3.5 MWwind: +26 MW

Electrabel in Europe. Electrabel in Europe. Renewable sourcesRenewable sources..

4 770 MW in operation

310 MW in construction

694 MW planned

Status: end 2006

Part 1Part 1 SUEZ GroupSUEZ Group

Part 2Part 2 Electrabel in EuropeElectrabel in Europe

Part 3Part 3 Electrabel in PolandElectrabel in Poland

Electrabel in Poland – Key factsElectrabel in Poland – Key facts

Power plant characteristics:

Installed capacity 1800 MW, 8 units x 225 MW

Hard coal & biomass co-firing

Open cooling circuit – Vistula river

FGD installation

Gross production efficiency 38.7%

Availability 94%

M&S OfficeKatowice

1800 MW Power Plant

Połaniec

Warsaw

Cracow

Poznań

Electrabel in Poland - Biomass installation - projectElectrabel in Poland - Biomass installation - project

Dosing plant

Buffer silo

Belt conveyor

Chipper

Feeding line for crushed biomass

Log transportation line

Goals: generate green energy (certificates), reduce emissions (CO2 savings), improve fuel mix, diversification

Investment: 7.9 M EUR, launch September 2004 Fuel sourcing: raw wood from National Forests, increasing share of agri-

biomass

Electrabel in Poland - Biomass installation - how it worksElectrabel in Poland - Biomass installation - how it works

Dosing plant

Buffer silo

Belt conveyor

Chipper

Feeding line for crushed biomass

Log transportation line

Wood: wet (logs, chips), dry (pellets) Agri-biomass: hay/straw briquettes, fruit husk

pellets, sunflower pellets and other types Lignine: co-product of paper and alcohol industry

Electrabel in Poland - Biomass installationElectrabel in Poland - Biomass installationGreen energy production 2004-2007Green energy production 2004-2007

4,5

24,2 26

,5

24,4

19,3 20

,6

25,0

32,0

30,0

25,5 27

,8

23,9

24,7 27

,7

31,4

31,9

18,0

40,3

39,8

27,8

33,6

31,2

22,4

36,1

34,7 37

,828

,5

18,1

15,9

20,6

34,2

28,2

0

5

10

15

20

25

30

35

40

45

Mo

nth

ly p

rod

uc

tio

n [

GW

h]

0

100

200

300

400

500

600

700

800

900

1 000

Cu

mu

lati

ve

pro

du

cti

on

[G

Wh

]

Monthly volume [GWh] Cumulative volume [GWh]

Electrabel in Poland – Emission performanceElectrabel in Poland – Emission performancePołaniec:

Leading power plant in Poland

Emission/produced energy ratios [kg/MWh or Mg/MWh] of Polaniec Power Plant 1995-2006

0,0

2,0

4,0

6,0

8,0

10,0

1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006

SO

2, N

O2

, as

he

s [

kg

/MW

h]

0,83

0,84

0,85

0,86

0,87

0,88

0,89

0,90

0,91

0,92

CO

2 [

Mg

/MW

h]

SO2 emission NO2 emission Ashes emission CO2 emission

Electrabel in Poland – Emission performanceElectrabel in Poland – Emission performance

Pollution concentration [mg/m3]

2 94

8

2 77

7

1 56

6

1 41

0

961

436

468

522

495

464

298

222

102

72 46

0

500

1 000

1 500

2 000

2 500

3 000

1997 1998 1999 2000 2006

SO2 emission [mg/Nm3] NO2 emission [mg/Nm3] Ashes emission [mg/Nm3]

SO2 limit: 2350 mg/Nm3

NO2 limit: 540 mg/Nm3

Ashes limit: 350 mg/Nm3

Połaniec:Leading power plant in

Poland

Presentation:Presentation:Jacek WeigelJacek WeigelMarketing Communication ManagerMarketing Communication Manager