Montalto di Castro (Viterbo, Lazio)


Thermoelectric oil-gas plant


200 hectares

Plant’s gross capacity

3.600 MW

Recent events
In May 2016 the public procedure was launched for the acquisition and redevelopment of the site, which is still in progress.  The initiative involved the collaboration between Enel, the Polytechnic of Milan, local organizations from the Montalto area, regional and provincial authorities and the Tuscia University.

In April 2017, the Selection Commission, which was called on to evaluate the suitability of the submitted projects based on the criteria of social, environmental and economic sustainability, made its conclusions. Enel then began negotiations with the counterparts that had submitted the three projects judged to be suitable for the area in a series of meetings in order to identify the best solution for the site. In August 2018, Enel Produzione and Studio Amati Architetti, one of the participants in the procedure, signed a letter of intent that initiated a process to carry out further studies on the implementation programme of the project proposal - which has already met with the consensus of institutions - to verify whether the conditions and prerequisites needed to sign a preliminary contract for the sale of the entire site are in place. It is a key step for the project that involves the creation of the first Smart Village in the Mediterranean, called "Marina della Tuscia".

The plant is located in an area originally destined to house one of Italy’s first nuclear power plants, the construction of which was halted following the accident in Chernobyl in 1987. The thermoelectric plant entered into service gradually beginning in 1992.  In 2009 it was joined by a photovoltaic plant that extends over an area of 12 hectares, with around 35,000 modules that produce a total of 8.5-9 GWh per year.

In recent years the thermoelectric plant has seen a drastic fall in production, entering into service less and less frequently and for short periods.

The territory
Montalto is a land of history, nature and tourism. The nearby Parco Naturalistico Archeologico di Vulci home to one of the most valuable evidence of the Etruscan civilization.
The Guglielmi castle overlooks the city and points out that the story of Montalto since the Middle Ages is linked to the Pope and to the families of the papal court. Walking through the city one can see churches and ancient monasteries built in different architectural styles between the thirteenth and eighteenth centuries.

The territories of Montalto and the nearby towns of Capalbio, Tarquinia, Tuscania and Saturnia every year welcome hundreds of thousands of tourists along the more than 10 kilometers of Tyrrhenian coast and natural reserves along the Via Aurelia.

Purchase and Redevelopment Procedure

Enel Produzione s.p.a. :

  • Considering the relevant outcomes registered todate by the Procedure of redevelopment and acquisition of the industrial site of Enel Montalto di Castro (VT);
  • Aiming at allowing the best preparation of the Project Proposals;
  • Reiterating the opportunity given by the initiative to the territory;
  • Replying to the several requests received to that effect,


Notifies that
The deadline for submitting the Project Proposal together with the Economic Binding Offer is extended from December 2nd, 2016 to February 3rd, 2017.

Enel, in accordance with the Open Power  philosophy and within the Futur-e project, will launch a purchase and redevelopment procedure aimed to select proposals for the purchase  and redevelopment of its thermal power plant located in Montalto di Castro (Viterbo).

The Procedure is divided into two phases:

  • Expression of Interest;
  • Due diligence, survey, project proposal and site binding purchase offer.


The two phases of the Procedure will be presented in detail in the document “Call for expressions of interest for the redevelopment and purchase of Enel’s Montalto di Castro industrial site” published on this website.

For the Montalto di Castro plant, the deadline for submission of the Expressions of interest is extended from 2 September to 30 September 2016 hours 12 a.m., while the deadline for submission of the project proposal together with the Binding economic Offer is extended from December 2nd 2016 to February 3rd 2017.

The extension of the deadline for the procedures regarding the two plants in the province of Viterbo and Rovigo was taken by Enel to allow the best possible preparation of the project of redevelopment proposals, which represents an important opportunity for these areas, and following the many requests submitted to that effect.

The proposed project proposals will be subject to a fit assessment taking into account the requirements established in the Procedure aiming at enhancing the innovative and sustainable projects under a social, economic and environmental viewpoint, with a special focus on the opportunities and needs of the local community.

The impartiality and quality of the jury will be guaranteed by the presence in it of Milan Polytechnic representatives, while local needs will be present through representatives of local authorities.

Following the selection of the project ideas Enel will start negotiation with the persons who have submitted the relevant binding site purchase offers in order to achieve the sale of the Plant area.


Discover the details regarding the procedure for the purchase and redevelopment of the Montalto di Castro power plant.

On this page you will find the Expression of Interest to participate, the useful documentation and a series of supporting materials.

The Expressions of Interest must be submitted at the latest by 30 September 2016 at 12 a.m., and are subject to a preliminary verification by Enel, as to whether they meet the requirements established by the presenters.

The Project proposals and their Binding Economic Offers  must be submitted at the latest by February 3rd, 2017.




Questions & Answers

In order to provide more details on the Procedure and the Montalto di Castro site, over a period of time queries can be sent to the webmaster@enel.com mailbox (until September 2nd).