Conventional Energy

More than 20 years executing projects in various countries in Europe, Latin America, the Middle East and Africa

More than 26,000 MW power installed

DF Energy is one of Spain’s leading companies specialising in the full execution of projects (EPC/turnkey) for all types of power generation facilities, from gas turbine power plants to conventional thermal plants, including cogeneration, biomass and waste-to-energy plants, among others.

The company has been executing projects in various countries around the world for more than 20 years, with more than 26,000 MW of installed power. It works and collaborates regularly with the world’s leading technologists and has participated in various projects with General Electric, Alstom Power, Siemens, Mitsubishi Heavy Industries and Pratt & Whitney.

DF Energy has permanent offices in the main countries of Latin America, Europe, Asia and North Africa. This provides the company with a stable structure close to the projects it executes, allowing it to manage them more efficiently.


Gas-fired Power Generation Facilities

(open and combined cycle)

Conventional power plants

Desulphurisation and denitrification

Biomass plants

Cogeneration plants

Waste to energy


Project management

Basic and detailed engineering Manufacturing


HRSG, mechanical components, storage tanks

Supply of systems

Mechanical and electrical


Electromechanical and complete


Plant start-up, plant operation until PAC


Site preparation, foundations, buildings, marine-river works


Operation and Maintenance of the plant

Evacuation infrastructure to the grid (Substations, Overhead lines ...)

Procurement of major equipment for solar PV plants


Duro Felguera receives the order from Romgaz to start the works at Iernut

The CEO, Jaime Argüelles, has expressed his satisfaction for this milestone, which is a success and highlights the good management of the company.

On 1st August 2023, Duro Felguera received the order from the Romanian company Romgaz to start work on the Iernut combined cycle power plant, once the necessary preliminary steps had been completed following the agreements reached last May.

Romgaz contracts Duro Felguera to complete Iernut’s combined cycle power plant

Duro Felguera has signed two agreements with the Romanian natural gas and electricity producer Romgaz for the finalisation of the works at the Iernut combined cycle power plant. Work is expected to start in the second quarter of this year. The company thus complies with what was stated in the IRR of 20 June 2021, registration number 10105, in which Duro Felguera expressed its willingness to complete the full execution of the works, in accordance with its guideline of successfully completing the projects, within the framework of a firm commitment to its customers and the provision of valuable solutions.


  • DF Energy

    AddressParque Científico Tecnológico
    C/ Ada Byron, 90
    33203 Gijón, Asturias (Spain)
    Telephone+34 98 519 93 51