Power stations

In the field of electrical power distribution substations of high and medium voltage insulated with air (AIS) or gas (GIS), we develop complete project documentation including concepts, feasibility studies, functional-utility programmes, building designs, detailed designs and as-built documentation.

Within the scope of design works we perform:

  • technical audits of power stations including technical condition assessment
  • designs of equipment supporting structures together with foundations
  • architectural designs of substation buildings (indoor substations, control, technological and protection rooms, kiosks)
  • designs of primary and secondary circuits
  • telecommunications and teletechnology designs, including technical protection systems (TPS)
  • designs of drainage and sewage systems, external earthing and fire protection installations
  • breakdown removal projects – immediate restoration of infrastructure projects (Emergency Restoration Systems)
  • concepts for the execution of substation facilities including the construction of new and the modernization/renovation of existing facilities, using the following methods and tools:
  • surge analyses, short-circuit and current flow calculations, calculations of short-circuit current flows in earthwires and earthing systems
  • analyses of complex earthing systems in multilayer soils, designs of earthing grids for substations
  • optimal selection of parameters of conductors, cables, structures, foundations, technology of technical buildings in terms of functionality, taking into account the guidelines and conditions of the investor and the owner of the infrastructure in the place of installation (technical and cost optimization of design solutions)

We provide:

  • surveying services
  • preparation of necessary geological and geotechnical expert opinions
  • provision of specialists to obtain land for the construction of the substation
  • carrying out planning works
  • complex ferroresonance analyses with academic support
  • expert opinions on environmental protection
  • comprehensive inter-branch coordination of projects
  • technical and legal consultancy
  • supervision of the execution of works on site
  • documentation with the use of modern software such as: EPLAN, AutoCAD, CDEGS, CYMCAP and others, as well as investment reporting with the use of spatial information systems software (ArcGIS®, QGIS®)
    creation of project documentation using the BIM method

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Substation design services

At Alterga, we provide a comprehensive range of design services for power substations, including full EPC (Engineering, Procurement and Construction) turnkey project delivery. Our offer covers conceptual, construction, and detailed design phases, along with preparation of complete design documentation, technical audits, engineering analyses, and expert consulting at every stage of project development and implementation.
Substation design involves multiple phases of work that result in a complete and technically compliant project. The documentation package includes various technical specifications, drawings, layout plans, geodetic surveys, geotechnical studies, environmental impact assessments, substation layout designs, and more. The scope of required documentation varies depending on the voltage level of the substation – whether medium-voltage (MV) or high-voltage (HV).
Alterga has been delivering diverse substation design solutions for years. We develop advanced AIS (Air-Insulated Switchgear) and GIS (Gas-Insulated Switchgear) substations, offering air- or gas-insulated configurations that comply with applicable standards and incorporate state-of-the-art technologies, including Building Information Modelling (BIM) environments.

Substation modernization

Design documentation is essential not only for new investments but also in the modernization of existing substations. We offer technical audits of operational facilities, which serve as the basis for the upgrade project design.

This includes recommendations for the selection of components and systems to optimize both technical and economic performance, as well as designs for the reconstruction of foundations, support structures, or replacement of individual substation components.

The aim of modernization projects is to upgrade substations to meet new regulatory or technological standards, implement modern solutions, and improve energy efficiency. In many cases, modernization is driven by the need to replace obsolete or worn-out equipment, which directly affects the reliability and operational safety of the facility. Enhancing the performance and efficiency of existing substations is often a viable and more cost-effective alternative to constructing entirely new infrastructure. In this field, Alterga’s specialists provide professional and reliable support.

Unique expertise and experience

#AltergaTeam of experts has extensive experience in designing power substations – ranging from large-scale industrial facilities to smaller installations. With a long-standing presence in the Polish energy market and hundreds of completed projects, we offer unique knowledge and proven technical know-how. Our projects are developed using BIM platforms, enabling precise interdisciplinary coordination and efficient investment lifecycle management.