Il Sistema Idroelettrico di A2A Spa

Ferdinando Bondiolotti

Tirano 16 Marzo 2010

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 2

Edison

6,019

A2A

4,194

Acea

1,859

Enia Iride

1,747

Hera

1,656

Ascopiave

391

AcegasAps

245

A2A

CAPITALIZZAZIONE DI MERCATO (M€)1

• A2A è la Società nata dalla fusione tra tre storicheaziende con 100 anni di storia, AEM Milano, AMSA e ASM Brescia

• A2A è il terzo player energetico nazionale

• A2A vanta un portafoglio di business benediversificato su quattro diverse filiere: Energia(elettricità e Gas), Calore e Cogenerazione, Ambiente e Reti.

(1) Market Capitalization: 12/10/2009; (2) 30/06/2009

AZIONISTI2

A2A Overview

Municipalityof Varese andBergamo 2.6%

Municipality ofBrescia 27.5%

Municipality ofMilan 27.5%

Alpiq HoldingAG 5.0%

Carlo TassaraS.p.A. 2.5%

Market34.9%

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 3

• 8.1 bn € revenue

• 0.8 bn € EBITDA

• 6.5 installed GW

• 21.2 produced Twh

MARKET

SHAREHOLDERS

PARTNERSHIP STRATEGICHE

27.5% 27.5% 2%

MUNICIPALITY OF MILAN

MUNICIPALITY OF BERGAMO

MUNICIPALITY OF BRESCIA

• 11.1 bn € revenue

• 1.6 bn € EBITDA

• 12.1 installed GW

• 50.2 produced Twh

• 13.8 Bcm gas

DELMI

TDE

+

8%

10%

15%

10%

27%

42%

61%

50%

51%

50%

19%

50%

2%

27% 5%

5%

20%

20%

51%

10%

4%

22%

90%

50%50%

• 1.3 bn € revenue

• 0.4 bn € EBITDA

• 7.8 installed GW

• 24.0 produced Twh

La “Rete di A2A”Un ruolo da protagonista nel mercato dell’energia

38%

HYDROS

DOLOMITIENERGY

40%

60%

49%51%

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 4

24 Hydro plants: GW 1.5

10 Thermal plants: GW 4.1

ITALY

POWER GENERATION

A2A IN ITALIA E IN EUROPA

30 TWhPower Portfolio

6 BcmGas Portfolio

2008 figures; * WTEs and landfills; Coriance included

1.9 TWhtHeat sold**

1.7 Mton waste disposed*

Waste treatment plants

Cogeneration plants

Hydro plants

Thermal plants

District Heating: 900 MWtand 200 MWe installed capacity

WTE: 1.5 Mtonn/ytreatment capacity

FRANCE:

•Power: Imports/Exports

•Load balancing RTE

•Powernext Day-Ahead

•Powernext continuous trading

•Powernext future

GERMANY:

•Load balancing RWE, EnBW

•EEX Day-Ahead

•EEX continuous trading

•EEX Future

AUSTRIA:

•Power: Imports/exports

•Load balancing APG

GREECE:

•Power: Imports/Exports

•Load balancing HTSO

•Active (energy trading) on DESMIE

SLOVENIA:

•Power: Imports/exports

RUSSIA:

•Gas imported (~1 Bcm)

NETHERLANDS:

•Gas imported (~2.5 Bcm)

SWITZERLAND:

•Power: Imports/exports

MONTENEGRO:

•Power: 44% stake of EPCG

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 5

La produzione idroelettrica

LL’’utilizzo della risorsa idrica utilizzo della risorsa idrica per la produzione di energiaper la produzione di energia

L'energia idroelettrica è un'energia pulita e deriva da una fonte rinnovabile. La materia prima è l'acqua, che si rinnova seguendo il suo ciclo naturale. La produzione non prevede processi di combustione o chimici di alcun genere e tipo. In un sistema ben progettato l'acqua viene utilizzata su più livelli successivi; in tal modo, può far funzionare centrali poste "in cascata".

A2A, con le sue centrali idroelettriche, ha una potenza installata di oltre 1200 MW di cui:

780 MW (Valtellina)

6 MW (centrali in provincia di Brescia)

c.li di Prevalle, c.le di Cognozzo, c.le di Roè Volciano e c.le di Pompegnino

484 MW (Nucleo Idroelettrico Calabria)

c.le di Orichella (CS), c.le di Timpagrande (KR), c.le di Calusia (KR), c.le di Albi (CZ), c.le di Magisano (CZ), c.li di Satriano (CZ), c.le di Celeste, c.le di Sersale (CZ)

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 6

Il sistema idroelettrico Calabria

Cosenza

Crotone

Catanzaro

Reggio Calabria

Vibo Valentia

1

53

2

4

• 1 – Asta Silana

• 2 – Asta Satriano

• 3 – Asta Albi Magisano

• 4 – Celeste

• 5 - Sersale

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 7

Il sistema idroelettrico di A2A (VALTELLINA)Il sistema idroelettrico di A2A (VALTELLINA)

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 8

Il posto centrale di teleconduzione di Grosio

Agli inizi anni 90 è entrata in servizio una sala quadri con apparati più moderni, in affiancamento alla vecchia, mantenuta solo per il controllo della centrale di Grosio, che da la possibilita'di telecomandare e telecontrollare tutti le opere idrauliche, le centrali di produzione e le linee di trasporto dell’energia. . Alla fine degli anni novanta il sistema di super visione e stato sostituito con uno piùmoderno in ambiente Windows a sua volta implementato nel 2005

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 9

Diga di San Giacomo

Canali di captazione: Gavia-Forni-Braulio 35,505 Km

Spoel 17,165 Km

Capacità: 64 milioni di mc

Lunghezza coronamento: 965 m

Atezza max: 91,50 m

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 10

Diga di Cancano

Canale di captazione: Nuovo Viola 19 Km

Capacità: 123 milioni di mc

Lunghezza coronamento: 382 m

Atezza max: 136 m

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 11

Centrale di Premadio

Potenza installata: 2 x 74 MW + 1 x 78 = 226 MW

Salto medio effettivo: 646,70 m

Diametro cond.forzata (m): 2,60/2,30 Pr1 – 2,10 Pr2

Turbine installate: 6 Pelton

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 12

Diga della Valgrosina

L’acqua dopo essere stata utilizzata dalla c.le di Premadio attraverso un canale della lunghezza di circa 20 Km, alimenta la diga della Valgrosina(capacità 1,2 milioni di mc)

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 13

Potenza installata: 428 MW

Salto medio effettivo: 598 m

Diametro cond.forzata (m): n°°°°2 3,20/2,90Turbine installate: 4Pelton

Centrale di Grosio

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 14

L’impianto idroelettrico di Grosio

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 15

Il salto utilizzato

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 16

Le condotte forzate

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 17

La cassa spirale

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 18

La turbina Pelton

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 19

La spina

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 20

Il canale di scarico

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 21

L’alternatore

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 22

Le sbarre

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 23

Centrale di Lovero

Potenza installata: 49 MW

Salto medio effettivo: 107,25 m

Diametro cond.forzata (m): 3,50

Turbine installate: 2 Francis

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 24

L’acqua dal canale di scarico della centrale di Lovero entra nel bacino di Sernio (capacità 0,7 milioni di mc) ed infine attraverso un canale alimenta la centrale di Stazzona

Traversa di Sernio

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 25

Centralina D.M.V. Sernio

Diametro condotta da 1,2 – 1,7 m

Portata da 2,35 – 4,7 mc/s

Salto da 4,6 – 9,25 m

Turbine installate una Kaplan

Potenza Installata 355 KW

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 26

Centrale di Stazzona

Potenza installata: 30 MW

Salto medio effettivo: 88,73 m

Diametro cond.forzata (m): 3,20

Turbine installate: 2 Francis

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 27

Centrale del Braulio

Potenza installata: 2x9 MW +1x1 MW = 19 MW

Salto medio effettivo: 133,38 m

Diametro cond.forzata (m): 2,5

Turbine installate:1 Pelton - 2 Francis

Centrale di Grosotto e Boscaccia

Potenza installata: 10 MW GT

3,3 MW BS

Salto medio effettivo: 320,05 m GT

208,40 m BS

Diametro cond.forzata (m): 1,40/1,00 GT

0,80 BS

Turbine installate:1 Pelton GT – 1 Pelton BS

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 28

Centrale di S.Giacomo

Potenza installata: 12,5 MW

Salto medio effettivo: 49,00 m

Turbine installate: 1 Kaplan

Centrale sbocco Nuovo Viola

Potenza installata: 0,4 MW

Salto medio effettivo: 13,60 m

Turbine installate: 1 Kaplan

This information was prepared by A2A and it is not to be relied on by any 3rd party without A2A’s prior written consent. 29

Grazie

per l’attenzione