Renewable Energy Development

Through its subsidiary ESERSA, TSK carries out all phases in the development of renewable energy plants.

  • It identifies the places with the optimal characteristics for the development of the projects, both in terms of location and regulation.
  • Locates and negotiates the concession of the land directly with the owner.
  • Studies and analyzes the interconnection of the plant with the electrical network.
  • Manages the environmental permits, licenses, easement of passage or any other requirement necessary for construction and operation.
  • It carries out the studies (solar, hydraulic, geotechnical resources..) and project engineering.



ESERSA has extensive experience in project finance for industrial and energy plants.

  • It designs the structure of the project, taking into account legal, fiscal and financial aspects.
  • It optimizes the most efficient capital structure, both with financial institutions and investors.

Engineering and Construction


ESERSA, through its shareholder TSK, has a history of building renewable energy plants, both for third parties and in its own developments, which exceeds 10,000 MW. Thanks to this experience, it has become an indisputable reference at international level, developing its projects on 4 continents.

The experience acquired and accumulated during 35 years of activity, has allowed ESERSA to establish trustworthy relationships with the most recognized and innovative suppliers worldwide, resulting in the construction of renewable energy plants of the highest quality and at the lowest cost.

The service provided by ESERSA includes, in addition to engineering, construction, mechanical assembly, electrical assembly and plant start-up, with a team of the most qualified professionals in the sector.

Operation and Maintenance


  • ESERSA is one of the main leaders in the provision of services within the sector thanks to the experience acquired after 35 years of activity
    • Operation and maintenance
    • Its own control center
    • Preparation of periodic operation, maintenance and exploitation reports
    • Proprietary system for remote supervision and monitoring
    • Proprietary system for measuring and analyzing thermographic images through drones
    • Integrated data management, storage and backup systems
    • Guarantee and insurance claims