NEW CAPACITY IMPLEMENTATION AND DEVELOPMENT PLAN FOR THE TRANSPORTATION NETWORK

NEW CAPACITY IMPLEMENTATION AND DEVELOPMENT PLAN FOR THE TRANSPORTATION NETWORK Document prepared by Snam Rete Gas S.p.A. in compliance with the Rule 137/02 issued by the Regulatory Authority for Electricity and Gas. Thermal Year 2013/2014

Foreword Snam Rete Gas (hereafter, SRG) announces its plan for new capacity and development of its transportation network, elaborated on the basis of the information currently available, in compliance with article 4, subsection 1 letter b, of Rule no. 137/02 issued by the Regulatory Authority for Electricity and Gas (Autorità per l Energia Elettrica e il Gas - AEEG) 1. The transportation network development projects included in this plan are the result of analyses and assessments made by SRG, based on capacity requirement forecasts, according to available elements and information. The infrastructure development plans described in this document do not constitute a legallybinding commitment for SRG, who therefore reserves the right to modify them whenever deemed necessary considering any new element, such as market development differing from present forecasts. 1 The provision of information in this document, translated in English from the Italian version, is carried out in compliance with the E.U. Regulation No. 715/2009. In case of any inconsistency, of whatever nature, between English and Italian versions, the Italian version shall prevail. 2 New Capacity Implementation and Development Plan for the Transportation Network

Contents 1 PLANNED INFRASTRUCTURE... 4 1.1 The overall plan... 4 1.2 The national network... 4 1.3 The regional network... 5 1.4 The main projects... 6 1.5 Development of the transportation network for Southern Entry Points... 7 1.6 Passo Gries and Tarvisio Exports... 7 1.7 Other National Network development projects... 9 1.8 Reinforcement in Lombardy (regional network)... 11 1.9 Gavi Pietralavezzara natural gas pipeline (regional network)... 12 1.10 Conversion of the Calabria Region to Natural Gas (regional network)... 12 2 CAPACITY PLAN... 13 2.1 Entry Points interconnected with foreign pipelines... 13 2.2 Entry Points interconnected with LNG terminals... 13 2.3 Exit Points interconnected with foreign pipelines... 13 2.4 Methods for Calculating Transportation Capacity... 14 2.4.1 Simulation programs... 15 2.4.2 Operating constraints... 16 2.4.2.1 Delivery pressures... 16 2.4.2.2 Maximum pressures in the natural gas pipelines... 16 2.4.2.3 Minimum Pressures in the Natural Gas Pipelines... 17 2.4.2.4 Operation of the compressor stations... 17 2.4.2.5 Inflows and outflows to/from the network... 18 3 ATTACHEMENT LIST DEVELOPMENT PROJECTS... 20 NATIONAL NETWORK... 20 REGIONAL NETWORK... 21 3 New Capacity Implementation and Development Plan for the Transportation Network

1 PLANNED INFRASTRUCTURE 1.1 The overall plan The new capacity implementation and development plan for the transportation network (hereafter, plan) includes projects already under construction and projects under feasibility studies whose implementation could start later on. It also includes other projects that are currently being planned and for which the only engineering and permit acquisition activities are scheduled to be started later on. Planned infrastructures are the result of analyses and assessments made on the basis of: - natural gas consumption forecasts in Italy; - users requirements for capacity at the Entry and Exit Points; - new requests by players interested in new Entry/Exit or Redelivery Points. The implementation of these projects depends upon the actual development of the requirements and their planning is subject to revisions that could result in significant changes with respect to the view herewith expressed. Projects on the national transportation network represent the core part of the plan, while the ones on the regional transportation network constitute the remaining part. The total length of the new natural gas pipelines forecasted in the plan amounts to about 3,750 km, with respect to an overall length of the transportation network in operation of 32,245 km, at 1st September 2013. According to the plan, installed capacity of the compressor stations will grow from 864 MW at the beginning of 2012/2013 Thermal Year (46 compressor units at 11 stations), to 1,200 MW (8 new units at the existing stations, and 15 new units installed at 6 new stations). 1.2 The national network The projects for national network development are mainly aimed at creating infrastructure for new import and export capacity. Concerning import capacities, works for developing the transportation network from the Entry Points in Southern Italy are in progress and the engineering and permit acquisition activities are under way for some other network development works on the lines from the South and from the Northeast. These works are functional to projects under discussion for the supply of gas through new pipelines from foreign countries or LNG terminals; they may be implemented once system users will be engaged to use transport capacity, as provided by law n.239/04 and by ARG/gas 2/10 provisions by the Regulatory Authority for Electricity and Gas, as taken into account by the network code. 4 New Capacity Implementation and Development Plan for the Transportation Network

Concerning export capacities, works have been started in the reinforcement of the North transportation network that will expand the transportation network in the Po Valley, thus allowing zero physical inflows at the Entry Point of Passo Gries and generating new exit capacities from the Exit Points of Passo Gries and Tarvisio towards Northern and Eastern Europe, respectively. The remaining main development projects on national network include the new connection with Cornegliano Laudense storage field in Lombardy and the connection of Geogastock storage field located in Salandra in Basilicata. The total length of the new national network pipelines forecasted in the plan amounts to about 2,900 km, with respect to an overall national network length of 9,409 km, operated by SRG at 1 st September 2013. 1.3 The regional network The plan includes 155 regional network reinforcement and extension projects distributed across the country, 84 of which are under implementation. Among them, the main ones are in Liguria (Gavi - Pietralavezzara) and Lombardy (Travagliato - Mornico al Serio, Lainate - Olgiate Olona, Osnago-Besana, Besana Giussano and Bussero-Osnago). In Calabria several network extension works are under way to allow the regional shift programme to natural gas. The plan also includes numerous works to interconnect industrial and thermoelectric plants as well as distribution networks to the transportation network. Some of these are already under way while other will not be implemented until the confirmation of interest by means of the signature of connection agreements. During the first 8 months of 2013, approximately 21 connections were started and 80 additional connections per year are foreseen, in the time horizon of the plan. The total length of the new regional network natural gas pipelines amounts to about 851 km, with respect to an overall regional network length of 22,836 km, operated by SRG at 1st September 2013. 5 New Capacity Implementation and Development Plan for the Transportation Network

1.4 The main projects The main projects of transportation capacity development are represented in the plan below and are described in detail in the following paragraphs. Development North East Imports Development Exports Development South Imports Import via Sardinia Development South Imports 6 New Capacity Implementation and Development Plan for the Transportation Network

1.5 Development of the transportation network for Southern Entry Points In Southern Italy activities connected to the realization of the 6 th line of the Messina - Palmi natural gas sealine have started in order to provide new transportation capacity at the future Entry Point interconnected with national production fields, whose arrival point will be situated in the Gela area. 1.6 Passo Gries and Tarvisio Exports The project in progress presents a first phase finalized to increase flexibility and safety of market supply in the North West Area of the Country, allowing first physical export flows. During the second phase, that completes and integrates network reinforcements of the first phase, conditions for higher export capacities are set. Phase 1 The first phase foresees the reinforcement of transportation infrastructures of East-West line across the Po Valley, by realizing a new manifold station in Sergnano and the pipelines Zimella Cervignano (170 km DN 1400), Cremona Sergnano 2 (50 km DN 1200), Poggio Renatico Cremona 3 (149 km DN 1200). Furthermore the reinforcement of the compressor stations in Masera and Istrana 2 and of the measuring station in Masera 4 are foreseen, allowing the handling of the outflows from Passo Gries and Tarvisio. 2 Pipeline Cremona-Sergnano and reinforcement of Istrana plant already put into operation at the end of 2011. 3 Pipeline Poggio Renatico Cremona put into operation since October 2013. 4 Reverse flow of Masera compressor unit and adjustment of Masera s measuring station put into operation since July 2013. 7 New Capacity Implementation and Development Plan for the Transportation Network

Phase 2 The new pipelines construction will also allow the replacement of about 315 km of the existing lines of Minerbio-Cremona, Cremona-Sergnano, Zimella-Sergnano and Sergnano- Cervignano, replacements due to technical reasons and to the progressive urbanization of Emilia, Veneto and Lombardy areas. The Cremona-Sergnano natural gas pipeline will also allow the connection to the National Network of the new Bordolano storage field. The above mentioned projects will allow the handling of the outflows from Passo Gries and Tarvisio towards Northern and Eastern Europe for quantities of 5 MScm/day and 18 MScm/day, respectively 5. The second phase consists in the construction of the pipelines Cervignano-Mortara (60 km DN1400) and Minerbio Poggio Renatico (20 km DN1200), of two new compressor stations in Minerbio (2x12 MW) and Sergnano (3x15 MW) and the reinforcement of the existing compressor station of Poggio Renatico (1x25 MW). The above mentioned projects will increase physical Exit flows in Passo Gries Interconnection Point until 40 MScm/day 6. 5 In both cases outflow in one point needs physical inflow in the other point. 6 Maximum concurrent physical flow in Exit in Passo Gries and Tarvisio. 8 New Capacity Implementation and Development Plan for the Transportation Network

1.7 Other National Network development projects SRG elaborated additional projects to further reinforce the transportation network in order to support further capacity increases, with particular reference to Entry Points. These projects, at present under feasibility evaluations, involve about 2,400 km of pipelines and about 240 MW of new power in new and/or existing compressor stations. In particular, in view of the importation projects and LNG terminals planned in Southern Italy, feasibility activities to expand the transportation network from the Entry Points in Southern Italy are already being carried out. In Sicily these projects include: - about 130 km of pipeline (DN1200) between Menfi and Piazza Armerina, along the line between Mazara del Vallo and Enna; - reinforcement of Enna compressor station whose construction works have already begun. Between the coasts of Sicily and Campania, about 300 km of the Tyrrhenian Line (DN800/1200) will be laid and the capacity of the new compressor station in Monforte S. Giorgio (ME) will be of 60 MW. Along the South-North line, about 700 km of the new Adriatic Line (DN1200) from Massafra (TA) to Minerbio (BO) and 33MW of compression power at the new compression station in Sulmona are foreseen. With reference to this project, construction works have already been completed on the Massafra- Biccari section in Puglia to improve the reliability and safety of transportation; the activities related to the construction of the compressor station in Sulmona, finalised at guaranteeing the transportation of larger quantities of gas from the storage field of Fiume Treste, which is in expansion by the field operator, have been initiated. The implementation of the aforesaid projects will allow an additional transportation capacity of about 25 MScm/day in Southern Italy Entry Points. Moreover, along the South-North line feasibility activities are foreseen for about 500 km (DN1200) and about 30 MW that will allow an additional transportation capacity of about 25 MScm/day in Southern Italy Entry Points. In Northern-eastern Italy, feasibility activities are being carried out for about 120 km of pipeline (DN1400) between Bordano and Istrana to replace the existing line (DN850), for the new compressor station of Flaibano (75 MW) and for the reinforcement of the station of Istrana. The implementation of these projects will provide a transportation capacity of about 30 MScm/day at the Entry Points situated in Friuli Venezia Giulia. In Central Italy, SRG signed an agreement with the GALSI company for the laying of the Italian section of the import natural gas pipeline from Algeria to Italy via Sardinia, once the final investment decision will be made by GALSI. SRG started the feasibility activities for the Piombino- Collesalvetti natural gas pipeline connection to the National Gas Pipeline Network. 9 New Capacity Implementation and Development Plan for the Transportation Network

The implementation of these projects will provide a transportation capacity of 24 MScm/day at the new Entry Point in Porto Botte. The transportation network will also be reinforced from the Entry Point interconnected with the LNG terminal in Panigaglia, for a total of 150 km of DN 900 pipelines. Feasibility activities already in progress could potentially reduce the overall time for the construction of the new infrastructures, which cannot start until transportation agreements have been stipulated with users, in line with the provisions of law n 239/04 and of Rule ARG/gas 2/10 of the Regulatory Authority for Electricity and Gas, as taken into account in the Network Code. 10 New Capacity Implementation and Development Plan for the Transportation Network

1.8 Reinforcement in Lombardy (regional network) Some major reinforcement projects are being carried out on the regional network of Lombardy, as reported in the map below. In the North-Western part of the network, the Lainate-Rescaldina section (11km, DN500) of the Lainate Olgiate Olona pipeline, the Osnago - Besana (9 km, diameter DN 750/500), Besana - Giussano (8 km diameter DN 500) and the Bussero Osnago (km 21 diametro DN 750) pipelines are being laid. In the Central-Eastern part, the regional network of eastern Lombardy is being reinforced through the laying of three adjacent natural gas pipelines with a diameter of DN 500, for a total length of about 46 km from Azzano Mella (BS) to Zanica (BG). The Azzano Mella - Travagliato (km 8) and Mornico al Serio - Zanica (km 14) sections were completed and put into operation in 2008 and 2009, respectively, while the Travagliato Mornico al Serio (24 km) section, which will complete the new regional transportation facility, is currently being laid. These works will reinforce the regional transportation infrastructures, thus adapting their performance to the growth of the natural gas market in the related areas. 11 New Capacity Implementation and Development Plan for the Transportation Network

1.9 Gavi Pietralavezzara natural gas pipeline (regional network) The project for Gavi - Pietralavezzara natural gas pipeline consists in laying about 26 km of pipeline with a diameter of DN 600, in place of the corresponding DN 400 section of the Cortemaggiore Genoa natural gas pipeline. The natural gas pipeline will increase the transportation capacity of the related regional network and the safety and reliability of the gas transportation service towards Genoa and its surrounding district. 1.10 Conversion of the Calabria Region to Natural Gas (regional network) In Calabria Region, works are under way for the completion of the regional conversion programme to natural gas, which entails constructing 17 supply lines for a total of 244 km, following the stipulation of contracts for connection to the SRG natural gas pipelines by distribution companies. At the present time, 11 of the total foreseen 17 supply lines have been laid and put in operation, for a total length of new lines of about 90 km of the foreseen 244 km, thus allowing the put into operation of 35 new Redelivery Points connected to the distribution network. 12 New Capacity Implementation and Development Plan for the Transportation Network

2 CAPACITY PLAN (Firm Capacity in MScm/day; 15 C; 1,01325 bar) 2.1 Entry Points interconnected with foreign pipelines 2.2 Entry Points interconnected with LNG terminals 2.3 Exit Points interconnected with foreign pipelines 13 New Capacity Implementation and Development Plan for the Transportation Network

2.4 Methods for Calculating Transportation Capacity The transportation capacities at the Entry, Exit and Redelivery Points of the transportation network are defined in chapter 2 of the Network Code, which also describes the methods used by SRG to calculate these capacities. The transportation capacities at the Entry Points interconnected with foreign pipelines or with LNG terminals and at the Exit Points interconnected with foreign pipelines, described in the plan, are communicated to the Ministry of Economic Development (Ministero dello Sviluppo Economico) and to the AEEG and published on SRG web site according to AEEG Rule no. 137/02. The transportation capacities at the Entry Points, interconnected with foreign pipelines or LNG terminals, are calculated by means of hydraulic simulations of the transportation network, defining the inflows and outflows to/from the network and complying with network operation constraints. The input data of the simulations are the daily flow rate and pressure values at the Entry Points and the daily flow rate values at the Exit/Redelivery points. The results of the simulations are the pressure values at the Exit/Redelivery points, the flow rate and pressure values of the gas flowing through the various sections of the network and the values of the characteristic parameters (e.g. the power and number of revolutions per minute) of the operation of the compressor stations. The transportation capacities may be put at the disposal of users with firm or interruptible transportation services. Firm transportation capacities are calculated in such a way that the resulting capacity value is guaranteed under all circumstances at all times of the Thermal Year. The firm transportation capacities are made available for a period of several years, whereas the annual and seasonal interruptible transportation capacities are calculated and made available on a yearly basis. Their values are determined by adopting less strict operating constraints than those used to calculate the firm capacities. The annual and seasonal interruptible capacities are subdivided into two levels of availability, so as to obtain four types of capacities characterized by ascending interruption priorities: 1st and 2nd level annual and 1st and 2nd level seasonal interruptible capacities. The transportation capacities at the Exit Points interconnected with foreign pipelines are calculated in a similar manner to those used for the Entry Points, taking into account the need to guarantee the transportation capacities at the Exit Points without interfering with the supply of the markets connected to the network in Italy. The transportation capacities at the Exit Points interconnected with foreign pipelines are made available on a yearly basis. Further information about the process to determine the transportation capacity on the SRG network - including the technical characteristics of the simulation system - is provided below. 14 New Capacity Implementation and Development Plan for the Transportation Network

2.4.1 Simulation programs The computerized system used for the transportation simulations consists of a set of programs for simulating mesh networks and compressor stations in a steady state. The system currently used is called SIRE2000 and was designed on the basis of specifications laid down by SRG. Interaction between the system and SRG operators takes place through a graphical interface, which is used to enter the data required by the system and to analyse the results of the simulation. The main characteristics of the system enable the operator to: create a model of the network consisting of sections of gas pipeline and calculation points corresponding to physical elements such as: o main nodes connecting pipelines; o detachment points of off-takes or distribution networks; o changes in diameter or altimetry of the pipelines. Calculation points are also set at the intake and delivery of compressor stations, at the Entry Points interconnected with import pipelines/lng terminals and production fields, and at the interconnections with the storage fields; concentrate the gas inflows and outflows to and from the network at the calculation points; simulate the network to calculate the following parameters, by solving a system of transportation equations on the basis of formulae and models recognized by scientific literature and the technical gas associations: o pressure, temperature and composition of the gas at the calculation points; o flow rate and composition of the gas in every section of the gas pipeline; o operating points of the compressor stations; use a model for the compressor stations based on: o application of the control criterion of the station for distributing the flow between the units; o realistic simulation of the operating point of compressors and turbines, using a mathematical model that describes the characteristic curves of each individual machine obtained from the field measurements (where available) or the expected curves provided by the manufacturers; this simulation provides quite an accurate determination of the operating range of the plants based on the actual limit curves (antisurge, minimum and maximum number of revolutions, maximum power); o calculation of the characteristic parameters of the compressor units based on the model of the machines (e.g. gas consumption, power required by the compressor, power provided by the turbine, number of revolutions per minute). 15 New Capacity Implementation and Development Plan for the Transportation Network

The calculation models used adopt the following main basic equations: Calculation of head losses Equation of state for calculating Z and derived factors Calculation of friction factor Calculation of viscosity Fergusson Equation Redlich-Kwong Equation Colebrook Equation Dean-Stiel Method 2.4.2 Operating constraints 2.4.2.1 Delivery pressures The minimum contractual pressures for delivery at the Entry Points, agreed upon with the operators interconnected with the transportation network as early as the interconnection plant sizing phase, are published on the web site of SRG, in accordance with the provisions laid down by the Network Code. The delivery pressure values presently in operation are: Entry Point Minimum contractual pressure (barg) Tarvisio 52,5 Gorizia 58 Passo Gries 7 49 Mazara del Vallo 75 Gela 70 Panigaglia 70 Cavarzere 70 2.4.2.2 Maximum pressures in the natural gas pipelines The pressure inside a gas pipeline must never exceed the maximum operating pressure of the pipeline. The maximum operating pressure is indicated on the Fire Prevention Certificate (Certificato di Prevenzione Incendi - CPI) issued by the provincial Fire Department when authorising pipeline operation. In transportation simulations, values 1 bar lower than the maximum operating pressure are considered as maximum pressures to avoid the risk of exceeding maximum operating pressure by 7 Pressure read at the measuring station of Masera. 16 New Capacity Implementation and Development Plan for the Transportation Network

effect of changes in the height of the pipeline or transient transportation conditions. Some sections of the pipelines downstream of the Entry points of Passo Gries and Tarvisio, laid in the early seventies and almost completely duplicated or triplicated with new lines, are operated at maximum pressures lower than the maximum operating pressure of the pipelines. 2.4.2.3 Minimum Pressures in the Natural Gas Pipelines The minimum pipeline pressure constraints take into account: the minimum operating pressures of the compressor stations, adjusted to cope with pressure fluctuations on the network during the day or possible surges; the compression ratios of the compressor stations, which, on the SRG transportation network, take on values of between 1.4 and 1.5 (70/50 barg on the transportation network with a CPI of 70 barg and 75/50 barg on the transportation network with a CPI of 75 barg); the need to maintain a minimum pressure level at the terminals of the networks that branch off from the nodes and from the transportation network so as to meet the withdrawal peaks that would otherwise tend to empty the pipes at peak hours (the amount of gas in the pipelines is directly proportionate to the pressure); the minimum redelivery pressures at the storages, adjusted to cope with pressure fluctuations on the network during the day or possible surges. The minimum pressure constraints in the gas pipelines are set at the input of the compressor stations and at the main nodes of the transmission network so that the pressure is always higher than the minimum allowed values at all points of the simulated network. The minimum pressure is 49 barg at the nodes of Mortara and Sergnano and 54 barg at the node of Minerbio. A value of 49 barg should be considered as the minimum pressure at the input of the compressor stations. 2.4.2.4 Operation of the compressor stations In the transportation simulations, the compressor stations operate under the following conditions: station power, defined as the sum of the power outputs of the turbines in operation, equivalent to 95±1% of the maximum available power (MW); number of compressor and turbine revolutions per minute, equivalent to 100±1% of the nominal revolutions per minute (RPM). The operating ranges defined above ensure safety margins which, taking into account the approximations inherent in simulating the operation of the units, enable the operating conditions that may actually arise during normal operation (mainly transitory events associated with daily fluctuations in transportation) to be tackled. In order to ensure the reliability of the transmission system under normal operating conditions, a certain number of spare compressor units are kept at each station, to guarantee that the total power of the spare units is equivalent to or greater than the power of each unit in operation. 17 New Capacity Implementation and Development Plan for the Transportation Network

For example, at a station made up of two compressor units with a rated power of 10 MW and two compressor units with a rated power of 25 MW, the maximum rated power for which spare units are available is 45 MW. Other limitations in the management of stations are determined by: the mapping of the compressors installed, which delimits the range of heads/flow rates allowed for each machine; the reduction coefficients of the power output of the turbines and of the efficiency of the compressors, which take into account the ageing of the machines; the head losses at the filters, the air coolers and the station s pipe-works. 2.4.2.5 Inflows and outflows to/from the network The gas inflows and outflows to and from the network are defined on the basis of the general criteria described here below. Redelivery Points The withdrawals of gas from the Redelivery Points are not constant throughout the year but are subject to seasonal variations 8. The outflows are therefore estimated considering a wide range of scenarios, which represent a forecast of the characteristic daily flow of each Redelivery Point, in different periods of the year. The annual firm and interruptible transportation capacities are calculated considering a summer consumption scenario, which represents the most severe scenario for the Entry Points from the South and the North-East, characterized by lower gas consumption with respect to other scenarios. In this scenario, gas put into the Entry Points must be transported for long distances to the storage fields situated in the North-Western, North-Eastern and Central areas of Italy. The annual transportation capacities (firm and interruptible) calculated in this scenario may therefore be guaranteed at any other time of year. For the Entry Point of Passo Gries, situated near the storage fields and major consumption centres, the seasonal effect on transportation is less accentuated and it must therefore be checked on each occasion which scenario allows the firm transportation capacity to be guaranteed at any time of year. The seasonal interruptible transportation capacities of the Entry Points from the South and the North-East are calculated on the basis of the winter scenarios; for the reason indicated above, interruptible seasonal capacity has never been made available for the Entry Point of Passo Gries. Transportation Capacities at Exit Points of Passo Gries, Tarvisio and Gorizia are evaluated on the basis of a winter scenario which represents the most severe one. As a matter of fact in this scenario gas export volumes must be transported with gas volumes assigned to the local market 8 For example, the difference in withdrawals for heating between the winter and the summer and the seasonal trends of some sectors of industry. 18 New Capacity Implementation and Development Plan for the Transportation Network

that, in winter time, are the highest of the year. Therefore capacity transportation evaluated under such a scenario can be guaranteed during the whole year. Storage and national production fields The storage fields are characterised by outflows from the network in the summer scenarios and inflows to the network in the winter scenarios. In summer scenarios an outflow to the storage fields of 60 MScm/day is considered. This value is consistent with the hypothesis of putting into storage, in the summer period (150 days), a total volume of gas for a storage replenishing campaign after a particularly cold winter. In winter scenarios, an inflow from the storage fields capable of compensating for the difference between the inflows (import and national production) and outflows (redelivery points and export) on the network is considered, taking into account the output capacity and the historical output flow rate of each individual field. The inflows to the transmission network from the national production fields are determined on the basis of the forecasts made by the operators of the production fields on the annual production volume and the production volumes of each individual field taken from the historical data, assuming a constant production rate during the year. 19 New Capacity Implementation and Development Plan for the Transportation Network

3 ATTACHEMENT LIST DEVELOPMENT PROJECTS NATIONAL NETWORK DENOMINATION Diameter (mm) Length (km) SEALINE MESSINA-PALMI 6 LINEA 650 29 MET. BICCARI-CAMPOCHIARO 1200 73 MET. GRADO-VILLESSE 1050 19 MET.ZIMELLA-CERVIGNANO 1400 172 NUOVO NODO DI SERGNANO 1200 1 MET. MINERBIO-POGGIO RENATICO 1200 21 MET. CERVIGNANO-MORTARA 1400 62 MET.PONTREMOLI-CORTEMAGGIORE 900 107 ALL. TERM. GNL BRINDISI LNG DI BRINDISI 1050 0,01 ALL. API NOVA ENERGIA GNL DI FALCONARA 1050 0,1 ALL. GNL NUOVE ENERGIE P.TO EMPEDOCLE 900 14 ALL GAS NATURAL TERMINALE GNL DI TRIESTE 800 27 ITAL GAS STORAGE S.R.L. DI CORNEGLIANO 1050 10 ALL. STOCCAGGIO GEOGASTOCK DI SALANDRA 750 0,1 ALL. ENI S.P.A. DIV. E&P DI GELA 500 0,4 NUOVO NODO DI MINERBIO - - POT. C.LE DI ENNA (REVAMPING) - - 3 74 NUOVA C.LE DI SULMONA - - 3 33 POT. C.LE DI POGGIO RENATICO - - 1 25 NUOVA C.LE DI SERGNANO - - 3 45 NUOVA C.LE DI MINERBIO - - 2 24 MET. AGRIGENTO-P.ARMERINA 1200 75 MET.MENFI-AGRIGENTO 1200 55 SEALINE MONFORTE S.G-POLICASTRO 800 255 MET.POLICASTRO-MONTESANO 1200 46 MET. S.PIER NICETO-MONFORTE S.GIORGIO 1200 3 MET. SESTINO-MINERBIO 1200 141 MET. FOLIGNO-SESTINO 1200 114 MET. SULMONA-FOLIGNO 1200 170 MET. FALCONARA-RECANATI 1050 38 MET. RECANATI-FOLIGNO 1050 78 MET. TARANTO-MASSAFRA 1050 9 MET.MELILLI-BRONTE 1200 104 MET. BORDANO-FLAIBANO 1400 32 MET. FLAIBANO-ISTRANA 1400 86 MET. VILLESSE-GONARS 1050 14 MET. PIOMBINO-COLLESALVETTI 1200 81 NUOVA C.LE DI MONFORTE S.GIORGIO - - 2 60 POT. C.LE DI ISTRANA - - 2 22 NUOVA C.LE DI FLAIBANO - - 3 75 MET. LA SPEZIA-PONTREMOLI 900 42 - - MET. TRIESTE-S.DORLIGO DELLA VALLE 250 6 - - MET. LECCE-BRINDISI 1200 70 - - GALLESE-ORVIETO 1200 56 - - SULMONA-ORICOLA 1200 93 - - MELIZZANO-CAMPOCHIARO 1200 45 - - MONTESANO-BUCCINO 1200 62 - - MET. TERRANUOVA-MINERBIO 1200 160 - - SEALINE OLBIA-PIOMBINO 800 250 - - MET. PORTO BOTTE-OLBIA 1200 300 - - POT. C.LE DI TERRANUOVA - - 2 30 NUOVA C.LE DI OLBIA - - 2 50 Units (n ) Power (MW) 20 New Capacity Implementation and Development Plan for the Transportation Network

REGIONAL NETWORK DENOMINATION Diameter Length (mm) (km) POT. MET. BOLTIERE - BERGAMO 400 7,6 POT. SPINA CAVA DEI TIRRENI 300 5,8 POT.DER. PER VARESE 300 3,0 POT.DER. PER TREZZANO ROSA 250 2,3 POT.DER. PER MOZZATE 200 2,0 MET. MORNICO AL SERIO-TRAVAGLIATO 500 24,3 POT.DER.ARCO-RIVA DEL GARDA 300 11,0 POT.DER.PER ARZIGNANO-CHIAMPO 300 1,7 POT.ALL.2^ PR.MISSAGLIA 250 2,5 POT.SPINA COM.TORRE DEI ROVERI 200 0,7 MET. TRIGGIANO-MONOPOLI (SPINA DI POLIGNANO) 150 3,2 POT. RETE BRESCIANO: TRATTO BAGNOLO MELLLA-BRESCIA 600 11,0 MET. POGGIO RENATICO - CREMONA (OPERE CONNESSE DI RETE REGIONALE) VARI 17,6 MET. LAINATE - OLGIATE OLONA:TR. LAINATE-RESCALDINA E OPERE CONNESSE 500 14,6 POT.DER.PER GARBAGNATE 250 3,5 POT. DERIV. PER URGNANO NORD (BG) 200 0,8 DER. PER BRUZZANO ZEFFIRIO E FERRUZZANO 400 12,6 MET. S.ANDREA APOSTOLO D.I.-CAULONIA 300 53,0 DIRAMAZIONE PER DIAMANTE E BUONVICINO 3 TRATTO 250 15,1 DERIVAZIONE PER SAPRI 250 21,2 DER. PER PENTONE E FOSSATO SERRALTA 250 20,9 METANODOTTO BELLUSCO - CORNATE D'ADDA 200 3,6 DIRAMAZIONE PER STILO E BIVONGI 150 5,2 MET. ZIMELLA - CERVIGNANO (OPERE CONNESSE DI RETE REGIONALE) VARI 80,6 MET. PONTREMOLI - CORTEMAGGIORE (OPERE CONNESSE DI RETE REGIONALE) VARI 23,4 POT. GAVI - PIETRALAVEZZARA E OPERE CONNESSE 600 33,7 POT. MET. RUBBIANO-COMO:TR. MUGGIO-DESIO 500 2,1 METANODOTTO DESIO-VEDANO AL LAMBRO 400 6,3 MET. CERMENATE-VERTEMATE-CANTU' 300 6,6 POTENZIAMENTO RETE DI FANO 300 3,4 MET. ALMENNO-VILLA D'ALME' 300 2,5 POT. ALL. COMUNE DI BRESSO (MI) 300 0,9 POT. DER. PER MENTANA-MONTEROTONDO 250 9,6 POT. ALL. COM. DI FENEGRO' (CO) 200 1,1 POT.ALL.2^ PR. LISSONE 200 0,2 POT. ALL. C.NE DI MELITO DI NAPOLI 150 0,2 MET. OSNAGO - BESANA E OPERE CONNESSE 750/500 12,1 MET. CERNUSCO-SEGRATE + I.R. DI CERNUSCO 400 5,5 POT. ALL. CONS. AGR. S.PIETRO DI MORUBIO 250 4,2 POT.SPINA COM.PADERNO D'ADDA 250 3,4 POT. DERIVAZIONE PER VASTO 200 5,0 POT. ALL. COMUNE DI CALTANISSETTA 200 5,0 POTENZ. RETE DI VAPRIO D'ADDA 200 1,6 POT. ALL. COMUNE DI ATESSA (CH) 150 3,8 POT. ALL. COMUNE DI MONTE S. PIETRO 150 3,3 DERIVAZIONE PER ARINO DI DOLO (VE) 150 3,3 POT. DERIV. PER FORMIA 150 0,5 MET. MASSAFRA - BICCARI (OPERE CONNESSE DI RETE REGIONALE) VARI 78,9 MET. BESANA - GIUSSANO E OPERE CONNESSE 500 10,1 MET. MONTORFANO - ALBAVILLA 200 1,8 POT. ALL. 1A PRESA COMUNE DI MAGENTA 200 0,9 POT. ALL. COMUNE DI ARESE 200 0,5 DERIV. PER MONTEBELLO I. E MELITO DI P.TO SALVO 400 47,4 MET. NOVATE MIL. - MILANO COMASINA 250 2,7 POT. RETE DI CREMA 250 2,2 POT. DER. PER MEDA (MI) 250 0,9 POT. ALL. COMUNE DI CORNAREDO 200 0,2 21 New Capacity Implementation and Development Plan for the Transportation Network

DENOMINATION Diameter Length (mm) (km) MET. CERVIGNANO - MORTARA (OPERE CONNESSE DI RETE REGIONALE) VARI 35,6 POT. DIRAMAZIONE SUD ROSETO 150 1,0 POT. ALL. COM. DI TREZZANO S.N. 2A PRESA 200 0,3 POT. ALL. COMUNE DI CISLAGO (VA) 200 2,8 POT. ALL. COM. DI CERNUSCO SUL N. 3A PR. 200 0,1 POT. BUSSERO - OSNAGO 750/VARI 24,1 POT. ALL. NAPOLI 4A PR. (TORRE AN.) 250 2,2 POT. RETE VALNURE VALTREBBIA 300 2,4 POT. DER. PER ANZIO 3 TRATTO (RM) 400/250 9,6 POT. SPINA DI POMEZIA + I.R. N 744 DI POMEZIA (RM) 250 5,0 POT. ALL. COM. DI RHO 2A PRESA 200 0,0 POT. ALL. A2A TRIULZA MILANO 750 0,8 POT.MET. SCHIO - PIOVENE ROCCHETTE 300 1,2 POT. DER. PINEROLO - VILLARPEROSA 600 9,1 POT. ALL. COMUNE DI MEDICINA 1 PRESA 150 3,1 POT. ALL. COM. DI IMOLA 1A PRESA 200 0,3 POT. ALL. COM. DI SANT'ILARIO D'ENZA 150 1,2 POT. ALL. COM. FONTANELLATO 1 PRESA (PR) 150 1,7 POT. SPINA DI S. GIORGIO DI NOGARO + ALLACCIAMENTI 400/200 2,7 POT. ALL. 1A PRESA COMUNE DI LIVORNO 400 0,2 POT.DER.PER PIUBEGA 200 4,3 POT.SPINA PER SALO' 300 4,0 POT. ALL. COMUNE DI GAVIRATE 1A PR. 200 0,3 POT.ALL.COM.DI CESATE 1ª PR. 200 1,3 POT. DER. PER SOLARO + POT. ALL. COM. CERIANO L. (MI) 200 0,9 POT. ALL. COMUNE DI LAINATE 1A PRESA 300 1,6 POT. ALL. FIAT V.I. DI BRESCIA 250 0,3 COL. ALL. SORGENIA A MET. MAENZA-VITINIA 500 0,7 POT. RETE PONTE S.PIETRO E RICOLLEG.TI 300 1,5 POT. ALL. 1A PR. COM. DI FAGNANO OL. 200 0,2 DERIVAZIONE PER REZZATO 2 TRATTO 500 3,0 MET. SAMARATE - CESANO MADERNO E OPERE CONNESSE 750 35,0 POT. ALL. BONELLI CHIMICA DI TREVIGLIO 200 0,1 POT. ALL. COMUNE DI USMATE VELATE 250 2,2 POT. DIRAMAZIONE PER ACIREALE 400 9,7 POT. ALL. SALSOMAGGIORE TERME 200 0,1 POT. ALL. COMUNE DI LATINA 3^ PRESA 200 5,7 POT. ALL. COM. DI S. LAZZARO 4A PRESA 150 0,2 POT. ALL. ACCIAIERIE DI RUBIERA 100 1,3 POT. ALL. COMUNE DI PARONA 150 0,1 POT. ALL. COM. CORBETTA (MI) 200 0,3 POT. ALL. COMUNE DI VERGIATE (VA) 200 0,1 POT. DERIV. PER CURNO 300 1,5 POT. ALIM. NORD MILANO E ALL. EDISON + I.R. N 662 MONZA 750/400 2,0 POT. ALL. COMUNE DI SOLBIATE ARNO 150 0,0 MET. CORNALETO - CASTELLEONE (CR) E RICOLLEGAMENTI 250 10,0 POT. ALL. COMUNI DI ALMÈ E VILLA D'ALMÈ 150 0,0 POT. LECCO - MANDELLO TRA PIL 4.1 E 4.2 300 0,6 POT. ALL. COMUNE DI CALENDASCO (PC) 150 0,3 POT. ALL. ORI MARTIN DI BRESCIA 200 0,0 POT. ALL. 3A PRESA COMUNE DI BERGAMO 200 0,0 POT. ALL. 3A PRESA COMUNE DI SAREZZO (BS) 150 0,0 POTENZIAMENTO ALL.TO SACCI 400/250 17,0 POT. ALL. COMUNE DI AGLIANA (PT) 150 0,0 POT. ALL. COMUNE DI CAMPI BISENZIO 200 0,2 POT. ALL. COMUNE DI ASTI 2A PRESA 300 1,7 POT. ALL. COMUNE DI TORTONA 2A PRESA 150 0,2 POT. ALL. COM. DI MONTECCHIO 3A PRESA 150 0,0 POT. ALL. COM. DI VIMERCATE (MB) 250 0,0 22 New Capacity Implementation and Development Plan for the Transportation Network

DENOMINATION Diameter Length (mm) (km) POT. DERIVAZIONE PER FRANCAVILLA 250 6,8 POT. ALL. CERAMICHE RAGNO DI SASSUOLO 150 0,0 POT. ALL. COMUNE DI FORMIGINE 3A PRESA 150 0,0 POT. RETE RAVENNA FIUME UNITI 250300100 15,5 POT. ALL. COM. DI CAVARIA CON PREMEZZO 150 0,0 POT. ALL. COMUNE DI SEVESO 2A PR. 200 0,2 POT. ALL. MANIF. E. CAPPIO DI FAGNANO OL. 100 0,1 POT. ALL. COMUNE DI BAREGGIO 200 0,1 POT. ALL. COMUNE DI RIVAROLO DEL RE (CR) 200 3,4 POT. ALL. 1A PRESA COMUNE DI NOVA MIL. 150 0,0 POT. RETE DI DESIO 200 0,6 COMPL. POT. DERIV. PER VARESE 400 6,0 POT. ALL. 1A PRESA COMUNE DI OLGIATE COMASCO (CO) 200 0,0 POT. ALL. 2A PRESA COMUNE DIBERGAMO "AZZANO" 250 0,0 POT. ALL. 1A PRESA COMUNE DI ROZZANO (MI) 200 0,2 POT. ALL. COM. DI NOCETO 1A PRESA 150 0,2 POT. ALL. COM. DI BARI 1A PRESA 500 1,1 POT. MET. BRONTE - CATANIA (VARIANTE CENTRO COMMERCIALE) 300 0,2 Connections CONNECTIONS TO INDUSTRIAL AND THERMOELECTRIC PLANTS AND TO DISTRIBUTION NETWORK N 120 Reduction/regulation plants DENOMINATION CAPACITY (Sm3/h) POT. IMP. RIDUZIONE DI LURAGO N. 510 150.000 POT. IMP. DI RID. N 813 DI LIONI (AV) 10.000 POT. IMP. DI RID. DI GALLARATE N 241 50.000 POT. IMP. DI RID. DI ALBATE N 360 50.000 POT. IMP. REG. N 211 DI COLLECCHIO (PR) 100.000 POT. IMP. REG. N 533 DI VILLA ZANELLI 200.000 POT. IMP. RID. 191 DI S.DONATO MILANESE 30.000 POT. IMP.RID. N 905 DI BUTTRIO (UD) 50.000 POT. IMP. RID. N 448 DI CASALETTO LOD. 200.000 POT. IMP. RID. N 960 DI ARIANO POLESINE 35.000 POT. IMP. RIDUZIONE DI ALBINO N. 5 30.000 POT. IMP. REG. N 453/A DI BOLTIERE 300.000 POT. IMP. RID. N 841 DI MESSINA 50.000 POT. IMP. DI REG. N 1007 DI BRIONA 600.000 POT. IMP. REG. N 898 DI VILLA OPICINA 100.000 POT.IMP.RID. N.749 GUIDONIA VS. MARCO S. 500.000 POT. IMP. RID. N 40 DI PEROSA CANAVESE 100.000 POT. IMP. RID. N 544 DI FIDENZA (PR) 25.000 POT. IMP. REG. N 541 DI C.NA MALVOLTI 150.000 POT. IMP. REG. N 637 DI VEZZANO LIGURE 200.000 POT. IMP. DI RID. DI ADRIA N 963 25.000 Note: 40 reduction/regulation plants, 37 of which under construction, are also planned inside some specific national and regional network development projects. 23 New Capacity Implementation and Development Plan for the Transportation Network