.
.
.
EXHIBIT 3.1
COMPANY NAME REGISTERED OFFICE ACTIVITY HELD BY
- ---------------------------------------------------------------------------------------------------------------------
Aburra BV Amsterdam (Holland) Holding company Pragma Energy SA
Agassiz Beach LLC Minnesota -USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
Agricola Rio Sahuil Ltda Santiago (Chile) Electricity generation from Agricola Y
renewable sources
Constructora Rio
Guanehue SA
Agricola Y Constructora Rio Santiago (Chile) Electricity generation from Empresa Electrica
Guanehue SA renewable sources Panguipulli SA
Energia de Los Lagos
Ltda
Aimeri S.p.A. Milan (Italy) Collection, transportation Camuzzi Gazometri S.p.A.
and disposal of refuse
Alfin S.r.l. Montesegale (Italy) Real Estate management Camuzzi Gazometri S.p.A.
Ape Gruppo Enel S.p.A. Rome (Italy) Personnel administration Enel S.p.A.
activities
Cise S.p.A.
Aquenergy Systems Inc. South Carolina - USA Electricity generation from Consolidated Hydro
renewable sources Southeast Inc.
Asotin Hydro Company Inc. Delaware -USA Electricity generation from CHI Energy Inc.
renewable sources
Autumn Hills LLC Minnesota -USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
Avisio Energia S.p.A. Trento (Italy) Gas distribution Enel Distribuzione Gas
S.p.A.
Aziscohos Hydro Company Inc. Delaware -USA Electricity generation from CHI Energy Inc.
renewable sources
Barras Electricas Galaico Lugo (Spain) Electricity distribution Electra de Viesgo
Asturianas SA Distribucion SL
Barras Electricas Generacion SL Lugo (Spain) Electricity generation Barras Electricas
Galaico Austurianas SA
Beaver Falls Water Power Company Pennsylvania - USA Electricity generation from Beaver Valley Holdings
renewable sources Ltd.
Beaver Valley Holdings Ltd Pennsylvania - USA Electricity generation from Hydro Development Group
renewable sources Inc.
Beaver Valley Power Company Pennsylvania - USA Electricity generation from Hydro Development Group
renewable sources Inc.
Bedard Electrics Inc. New York -USA Electricity generation from Hydro Development Group
renewable sources Inc.
Boott Hydropower Inc. Massachusetts - USA Electricity generation from CHI Energy Inc.
renewable sources
Camuzzi Finance SA Luxembourg Finance Camuzzi Gazometri S.p.A.
Camuzzi Gazometri S.p.A. Milan (Italy) Natural gas distribution and Enel Distribuzione Gas
sales; waste management S.p.A.
Canastota Wind Power LLC Delaware - USA Electricity generation from Essex Company
renewable sources
Carbones Colombianos del Cerrejon Bogota (Colombia) Exploitation of coal mines Pragma Energy SA
SA Aburra BV
C.A.R.T. Abruzzi S.r.l. Orio al Serio (Italy) Holding company for the water Camuzzi Gazometri S.p.A.
sector
Central American Power Services Delaware - USA Electricity generation from EGI LLC
Inc. renewable sources
CHI Acquisitions Inc. Delaware - USA Electricity generation from CHI Energy Inc.
renewable sources
CHI Acquisitions II Inc. Delaware - USA Electricity generation from CHI Finance Inc.
renewable sources
CHI Black River Inc. Delaware - USA Electricity generation from CHI Finance Inc.
renewable sources
CHI Canada Inc. Quebec - Canada Electricity generation from CHI Finance Inc.
renewable sources
CHI Dexter Inc. Delaware - USA Electricity generation from CHI Finance Inc.
renewable sources
CHI Energy Inc. Connecticut - USA Electricity generation from Enel Green Power
renewable sources International SA
CHI Finance Inc. Delaware - USA Electricity generation from CHI Energy Inc.
renewable sources
CHI Hydroelectric Company Inc. Newfoundland - Canada Electricity generation from CHI Canada Inc.
renewable sources
CHI Highfalls Inc. Delaware - USA Electricity generation from CHI Finance Inc.
renewable sources
CHI Idaho Inc. Delaware - USA Electricity generation from CHI Acquisitions Inc.
renewable sources
CHI Magic Valley Inc. Delaware - USA Electricity generation from CHI Acquisitions Inc.
renewable sources
CHI Minnesota Wind LLC Delaware - USA Electricity generation from CHI Finance Inc.
renewable sources
CHI Mountain States Operations Delaware - USA Electricity generation from CHI Acquisitions Inc.
Inc. renewable sources
CHI Operations Inc. Delaware - USA Electricity generation from CHI Energy Inc.
renewable sources
CHI Power Inc. Delaware - USA Electricity generation from CHI Energy Inc.
renewable sources
CHI Power Marketing Inc. Delaware - USA Electricity generation from CHI Energy Inc.
renewable sources
CHI Universal Inc. Delaware - USA Electricity generation from CHI Energy Inc.
renewable sources
CHI West Inc. Delaware - USA Electricity generation from CHI Acquisitions Inc.
renewable sources
CHI Western Operations Inc. Delaware - USA Electricity generation from CHI Acquisitions Inc.
renewable sources
Cise S.p.A. Rome (Italy) Real estate management Enel S.p.A.
Climare Scrl Sestri Levante Energy services Enel Distribuzione
(Genoa) S.p.A.
Co.Im Gas S.p.A. S.Maria a Colle Plant management, Camuzzi Gazometri S.p.A.
(Italy) distribution and sale of gas
Coneross Power Corporation Inc. South Carolina - USA Electricity generation from Aquenergy Systems Inc.
renewable sources
Conexion Energetica Guatemala Electricity generation from EGI LLC
Centroamericana SA renewable sources
Enel Green Power
International SA
Conexion Energetica San Salvador (El Electricity generation from Grupo EGI SA de cv
Centroamericana El Salvador SA Salvador) renewable sources
EGI Holdco El Salvador
SA de cv
Conphoebus S.p.A. Catania (Italy) Research in the renewable Enel S.p.A.
sources sector
Consolidated Hydro Mountain Delaware - USA Electricity generation from CHI Acquisitions Inc.
States Inc. renewable sources
Consolidated Hydro New Hampshire Delaware - USA Electricity generation from CHI Universal Inc.
Inc. renewable sources
Consolidated Hydro New York Inc. Delaware - USA Electricity generation from CHI Energy Inc.
renewable sources
Consolidated Hydro Southeast Inc. Delaware - USA Electricity generation from CHI Acquisitions II Inc.
renewable sources
Consolidated Hydro Vermont Inc. Delaware - USA Electricity generation from CHI Energy Inc.
renewable sources
Consolidated Pumped Storage Inc. Delaware - USA Electricity generation from CHI Energy Inc.
renewable sources
Consolidated Pumped Storage Delaware - USA Electricity generation from Consolidated Pumped
Arkansas Inc. renewable sources Storage Inc.
Constructora Cerro Pitren Ltda Santiago (Chile) Electricity generation from Agricola Y Constructora
renewable sources Rio Guanehue SA
Coosa Pines Energy LLC Delaware - USA Electricity generation from CHI Finance Inc.
renewable sources
Coosa Pines Energy Holdings LLC Delaware - USA Electricity generation from CHI Finance Inc.
renewable sources
Crosby Drive Investments Inc. Massachusetts - USA Electricity generation from Asotin Hydro Company
renewable sources Inc.
Ctida S.r.l. Milan (Italy) Engineering, water systems Enel.Hydro S.p.A.
Dalmazia Trieste S.p.A. Rome (Italy) Real estate management Cise S.p.A.
Deval S.p.A. Aosta (Italy) Electricity distribution in Enel S.p.A.
Valle D'Aosta
Eagle & Phenix Hydro Company Inc. Delaware - USA Electricity generation from CHI Acquisitions Inc.
renewable sources
EGI LLC Delaware - USA Electricity generation from Enel Green Power
renewable sources International SA
EGI Costa Rica Viento SA Santa Ana (Costa Electricity generation from Energia Global de Costa
Rica) renewable sources Rica SA
EGI Holdco El Salvador SA de cv San Salvador (El Electricity generation from Enel Green Power
Salvador) renewable sources International SA
EGI LLC
Electra de Viesgo Distribucion SL Santander (Spain) Distribution and sale of Enel Distribuzione
electricity S.p.A.
Electrificadora Ecologica SA Santa Ana (Costa Electricity generation from ZMZ General SA
Rica) renewable sources
Elettroambiente S.p.A. Rome (Italy) Electricity generation from Enel S.p.A.
waste
Empresa Electrica Panguipulli SA Santiago (Chile) Electricity generation from Energia de Los Lagos
renewable sources Ltda
Energia Alerce Ltda
Empresa Electrica Puyehue SA Santiago (Chile) Electricity generation from Energia de Los Lagos
renewable sources Ltda
Energia Alerce Ltda
Enel Capital S.p.A. Milan (Italy) Venture capital Enel S.p.A.
Cise S.p.A.
Enel Comercializadora de Gas SA Madrid (Spain) Sale of gas and electricity Enel Trade S.p.A.
Enel Distribuzione S.p.A. Rome (Italy) Electricity distribution Enel S.p.A.
Enel Distribuzione Gas S.p.A. Milan (Italy) Gas distribution Enel S.p.A.
Enel Energia S.p.A. Rome (Italy) Sale of electricity Enel S.p.A.
(previously called Enel Trade
S.p.A.)
Enel.factor S.p.A. Rome (Italy) Factoring Enel S.p.A.
Enel Finance International SA Luxembourg Finance Enel Produzione S.p.A.
Enel Distribuzione
S.p.A.
Enel Gas S.p.A. Milan (Italy) Sale of gas Enel S.p.A.
(previously called Enel Vendita Enel Distribuzione Gas
Gas S.p.A.) S.p.A.
Enel Generation Holding BV Amsterdam (Holland) Holding company Enel Produzione S.p.A.
Enel Green Power S.p.A. Pisa (Italy) Electricity generation from Enel S.p.A.
renewable sources
Enel Green Power Hellas SA Athens (Greece) Electricity generation from Enel Green Power S.p.A.
renewable sources
Enel Green Power International SA Luxembourg Holding of foreign companies Enel Green Power S.p.A.
operating in the electricity
generation from renewable Enel Investment Holding
sources BV
Enel Holding Luxembourg SA Luxembourg Finance Enel Investment Holding
BV
Enel.Hydro S.p.A. Rome (Italy) Engineering, water systems Enel S.p.A.
Enel Investment Holding BV Amsterdam (Holland) Holding company Enel S.p.A.
Enel Ireland Finance Ltd Dublin (Ireland) Finance Enel Finance
International SA
Enel.it S.p.A. Rome (Italy) Information technology Enel S.p.A.
Cise S.p.A.
Enel Logistica Combustibili Rome (Italy) Fuel logistics Enel Trade S.p.A.
S.p.A.
Enel M@p S.p.A. Rome (Italy) Services Enel Distribuzione
S.p.A.
Cise S.p.A.
Enel.Net S.p.A. Rome (Italy) Creation and management of Enel S.p.A.
telecommunication networks
Cise S.p.A.
Enelpower S.p.A. Milan (Italy) Engineering and contracting Enel S.p.A.
Cise S.p.A.
Enelpower Contractor and Riyadh (Saudi Arabia) Power plant construction, Enelpower S.p.A.
Development Saudi Arabia Ltd management and maintenance
Enelpower do Brasil Ltda Rio de Janeiro Engineering and contracting Enelpower S.p.A.
(Brasil)
Enelpower UK Ltd London (United Engineering and contracting Enelpower S.p.A.
Kingdom)
Enel Produzione S.p.A. Rome (Italy) Electricity generation Enel S.p.A.
Enel.Re Ltd Dublin (Ireland) Reinsurance Enel Holding Luxembourg SA
Enel Real Estate S.p.A. Rome (Italy) Real estate and facility Enel S.p.A.
management
Enel Service UK Ltd London (United Services Enel.Trade S.p.A.
Kingdom)
Enel.si - Servizi integrati Rome (Italy) Engineering and energy Enel S.p.A.
S.p.A. related services
Cise S.p.A.
Enel Trade S.p.A. Rome (Italy) Fuel trading and logistics - Enel S.p.A.
Sale of electricity
(previously called Enel.FTL Enel Produzione S.p.A.
S.p.A.)
Cise S.p.A.
Enel Viesgo Servicios SL Santander (Spain) Services Enel S.p.A.
Enel Produzione S.p.A.
Enel Distribuzione
S.p.A.
Energia Alerce Ltda Santiago (Chile) Electricity generation from EGI LLC
renewable sources
Enel Green Power
International SA
Energia de Los Lagos Ltda Santiago (Chile) Electricity generation from Energia Alerce Ltda
renewable sources
EGI LLC
Energia Global SA de cv Connecticut - USA Electricity generation from EGI LLC
renewable sources
Energia Global de Costa Rica SA Santa Ana (Costa Electricity generation from EGI LLC
Rica) renewable sources
Energia Global Operaciones SA Santa Ana (Costa Electricity generation from Energia Global de Costa
Rica) renewable sources Rica SA
Essex Company Massachusetts - USA Electricity generation from CHI Energy Inc.
renewable sources
ESTEL S.p.A. Trieste Telecommunications WIND S.p.A.
Florence Hills LLC Minnesota - USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
Fulcrum Inc. Idaho - USA Electricity generation from Consolidated Hydro
renewable sources Mountain States Inc.
Gauley Hydro LLC Delaware - USA Electricity generation from Essex Company
renewable sources
Gauley River Management Vermont - USA Electricity generation from CHI Finance Inc.
Corporation renewable sources
GE.AD.S.p.A. Milan (Italy) Gas distribution Enel Distribuzione Gas
S.p.A.
Generadora de Occidente Ltda Guatemala Electricity generation from EGI LLC
renewable sources
Conexion Energetica
Centroamericana SA
Gestion Cogeneration Inc. Quebec - Canada Electricity generation from Hydrodev Inc.
renewable sources
Grupo EGI SA de cv San Salvador (El Electricity generation from EGI Holdco El Salvador
Salvador) renewable sources SA de cv
EGI LLC
Grupo Hidroverde LLC Delaware - USA Electricity generation from EGI LLC
renewable sources
Hadley Ridge LLC Minnesota - USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
Highfalls Hydro Company Inc. Delaware - USA Electricity generation from CHI Finance Inc.
renewable sources
Hope Creek LLC Minnesota - USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
Hosiery Mill Hydro Company Inc. Delaware - USA Electricity generation from CHI Acquisitions Inc.
renewable sources
Hydrodev Inc. Quebec - Canada Electricity generation from CHI Canada Inc.
renewable sources
Hydro Development Group Inc. New York - USA Electricity generation from CHI Acquisitions II Inc.
renewable sources
Hydro Energies Corporation Vermont - USA Electricity generation from CHI Finance Inc.
renewable sources
Hydro Gestioni S.p.A. Milan (Italy) Water sector Enel.Hydro S.p.A.
Hydro Gestioni Impianti Milan (Italy) Water sector Enel.Hydro S.p.A.
Tecnologici Scrl
Idrogest Scrl Cagliari (Italy) Water sector Enel.Hydro S.p.A.
Enel Green Power S.p.A.
Iridea S.r.l. Milan (Italy) Consultancy services Enel Gas S.p.A.
Iroquorp Ltd New York - USA Electricity generation from Hydro Development Group
renewable sources Inc.
Iroquorp Acquisitions Inc. New York - USA Electricity generation from Hydro Development Group
renewable sources Inc.
Italia On Line S.p.A. Milan (Italy) Internet services WIND S.p.A.
IT-net S.p.A. Rome (Italy) Network information systems WIND S.p.A.
Mondo WIND S.r.l.
Jack River LLC Minnesota - USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
Jessica Mills LLC Minnesota - USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
Joseph Hydro Company Inc. Delaware -USA Electricity generation from CHI Acquisitions II Inc.
renewable sources
Julia Hills LLC Minnesota - USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
Kings River Hydro Company Inc. Delaware - USA Electricity generation from CHI Finance Inc.
renewable sources
Kinneytown Hydro Company Inc. Delaware - USA Electricity generation from CHI Energy Inc.
renewable sources
LaChute Hydro Company Inc. Delaware - USA Electricity generation from CHI Energy Inc.
renewable sources
La Riccia S.r.l. Taranto (Italy) Real Estate management Camuzzi Gazometri S.p.A.
Lawrence Hydroelectric Associates Massachusetts - USA Electricity generation from Essex Company
LP renewable sources
Crosby Drive
Investments Inc.
Littleville Power Company Inc. Massachusetts - USA Electricity generation from Hydro Development Group
renewable sources Inc.
Lower Saranac Corporation New York - USA Electricity generation from CHI Acquisitions Inc.
renewable sources
Maritza East III Power Company AD Sofia (Bulgaria) Electricity generation Maritza East III Power
Holding BV
Maritza East III Power Holding Amsterdam Holding company Enel Generation
BV (Holland) Holding BV
Mascoma Hydro Corporation New Hampshire - USA Electricity generation from CHI Acquisitions II Inc.
renewable sources
Metan Gas Sicilia S.r.l. Rome (Italy) Gas distribution Enel Distribuzione Gas
S.p.A.
Metro Wind LLC Minnesota - USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
Mill Shoals Hydro Company Inc. Delaware - USA Electricity generation from CHI Finance Inc.
renewable sources
Minnewawa Hydro Company Inc. Delaware - USA Electricity generation from CHI Energy Inc.
renewable sources
Mobilmat S.p.A. Milan (Italy) Finance WIND S.p.A.
Molinos de Viento del Arenal SA Santa Ana (Costa Electricity generation from Electrificadora
Rica) renewable sources Ecologica SA
Mondo WIND S.r.l. Rome (Italy) Sale of telecommunication WIND S.p.A.
products and services
IT-net S.p.A.
North Canal Waterworks Massachusetts - USA Electricity generation from Essex Company
renewable sources
Notch Butte Hydro Company Inc. Delaware - USA Electricity generation from CHI Finance Inc.
renewable sources
Novatrans Energia SA Rio De Janeiro Creation and maintenance of Enelpower S.p.A.
(Brazil) electricity transmission
networks
Operacion Y Mantenimiento Tierras Santa Ana (Costa Electricity generation from Electrificadora
Morenas SA Rica) renewable sources Ecologica SA
Optigaz Inc. Quebec - Canada Electricity generation from CHI Canada Inc.
renewable sources
Ottauquechee Hydro Company Inc. Delaware - USA Electricity generation from CHI Finance Inc.
renewable sources
Pelzer Hydro Company Inc. Delaware - USA Electricity generation from Consolidated Hydro
renewable sources Southeast Inc.
P.H. Don Pedro SA Santa Ana (Costa Electricity generation from Energia Global de Costa
Rica) renewable sources Rica SA
P.H. Guacimo SA Santa Ana (Costa Electricity generation from EGI LLC
Rica) renewable sources
Energia Global de Costa
Rica SA
P.H. Rio Volcan SA Santa Ana (Costa Electricity generation from Energia Global de Costa
Rica) renewable sources Rica SA
Platani Energia Ambiente ScpA Palermo (Italy) Building and management of Elettroambiente S.p.A.
systems of urban refuse
Enel Produzione S.p.A.
Pragma Energy SA Lugano (Switzerland) Coal trading Enel Trade S.p.A.
Pragma Energy Services Ltd London (United Administrative services Pragma Energy SA
Kingdom)
Ruthton Ridge LLC Minnesota - USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
S.A.M.I.G. S.r.l. L'Aquila (Italy) Services Enel Distribuzione Gas
S.p.A.
Sfera - Societa per la formazione Rome (Italy) Human resources Enel S.p.A.
e le risorse aziendali S.p.A.
Enel Produzione S.p.A.
Enel Distribuz. S.p.A.
T.E.R.NA. S.p.A.
Enelpower S.p.A.
Enel Green Power S.p.A.
Enel Real Estate S.p.A.
Enel.Hydro S.p.A.
Sheldon Vermont Hydro Company Inc Delaware - USA Electricity generation from CHI Acquisitions Inc.
renewable sources
Slate Creek Hydro Company Inc. Delaware - USA Electricity generation from CHI Acquisitions II Inc.
renewable sources
Smarin S.p.A. Taranto (Italy) Collection, transportation Camuzzi Gasometri S.p.A.
and disposal of refuse
Tekna S.r.l.
So.l.e.- Societa luce elettrica Rome (Italy) Public lighting systems Enel S.p.A.
S.p.A. Gruppo Enel
Cise S.p.A.
So.l.e. Milano H Scrl Rome (Italy) Construction of public So.l.e. S.p.A.
lighting systems
Soliloquoy Ridge LLC Minnesota - USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
Somersworth Hydro Company Inc. Delaware - USA Electricity generation from CHI Universal Inc.
renewable sources
Southwest Transmission LLC Minnesota - USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
Spartan Hills LLC Minnesota - USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
Summit Energy Storage Inc. Delaware - USA Electricity generation from CHI Energy Inc.
renewable sources
Summit Finance Inc. Delaware - USA Electricity generation from Summit Energy Storage
renewable sources Inc.
Sun River LLC Minnesota - USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
Sweetwater Hydroelectric Inc. New Hampshire - USA Electricity generation from CHI Acquisitions II Inc.
renewable sources
Tecnoguat SA Guatemala Electricity generation from EGI LLC
renewable sources
Tekna S.r.l. Milan (Italy) Holding company in the Camuzzi Gasometri S.p.A.
disposal of refuse sector
Tellas Telecommunications SA Athens (Greece) Telecommunications WIND-PPC Holding NV
T.E.R.NA. -Trasmissione Rome (Italy) Ownership and maintenance of Enel S.p.A.
Elettricita Rete Nazionale S.p.A. the electricity transmission
network
The Great Dam Corporation Massachusetts - USA Electricity generation from Lawrence Hydroelectric
renewable sources Associates LP
Tifeo Energia Ambiente ScpA Palermo (Italy) Buiding and management of Elettroambiente S.p.A.
systems of urban refuse
Enel Produzione S.p.A.
TKO Power Inc. California - USA Electricity generation from CHI West Inc.
renewable sources
Tsar Nicholas LLC Minnesota -USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
T.S.N. - Transmissora Sudeste Rio De Janeiro Construction, ownership and Enelpower S.p.A.
Nordeste SA (Brazil) maintenance of transmission
network
Twin Falls Hydro Company Inc. Delaware - USA Electricity generation from CHI Acquisitions Inc.
renewable sources
Twin Lake Hills LLC Minnesota - USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
Viesgo Energia SL Santander (Spain) Sale of electricity and Electra de Viesgo
natural gas Distribucion SL
Viesgo Generacion SL Santander (Spain) Generation and sale of Enel Produzione S.p.A.
electricity
Ware Hydro Company Inc. Delaware - USA Electricity generation from CHI Finance Inc.
renewable sources
WEBiz Holding BV Amsterdam (Holland) Venture capital Enel Investment Holding
BV
Western New York Wind Corporation New York - USA Electricity generation from CHI Energy Inc.
renewable sources
Willimantic Hydro Company Inc. Delaware - USA Electricity generation from CHI Acquisitions Inc.
renewable sources
Willimantic Power Corporation Connecticut - USA Electricity generation from Willimantic Hydro
renewable sources Company Inc.
WIND-PPC Holding NV Amsterdam (Holland) Holding company in the WIND S.p.A.
telecommunications sector
WIND Telecomunicazioni S.p.A. Rome (Italy) Telecommunications Enel S.p.A.
Enel Investment Holding
BV
Winter's Spawn LLC Minnesota - USA Electricity generation from CHI Minnesota Wind LLC
renewable sources
ZMZ General SA Santa Ana (Costa Electricity generation from EGI Costa Rica Viento SA
Rica) renewable sources