We have been operating in the energy sector in Poland for over 60 years. As part of the works we carry out comprehensive investment projects in power engineering, which requires a complex knowledge of the project management process, design, right of way, supply, logistics, construction site management, construction and assembly works and commissioning.
The works were performed with due diligence, on time, in accordance with the terms of the contract and the technical standards adopted for use, and we assess their quality as very good. We consider the company reliable and worth recommending.
TAURON Dystrybucja SA
Case Study
Design projects and comprehensive implementations performed for our clients from the power industry in Poland and abroad.
Our activities are carried out by highly qualified project managers with extensive experience in the power industry. Power line (LV, MV, WN, LV), distribution networks or power stations projects ordered by our clients, we always deliver on time, often made in a "turnkey" system (design and build), with high quality performance, work safety rules and within the given budget.
The list of projects carried out by Eltel Networks includes both investments in Poland and foreign markets, incl. Germany, Great Britain, Belgium, Norway, Sweden, Finland, Lithuania, Liberia, Singapore, Greenland, Mozambique and Angola.

Our clients are mainly electricity transmission and distribution companies, operators and suppliers of telecommunications systems, power plants and combined heat and power plants, as well as general contractors of electrical power facilities.
We have carried out comprehensive projects or power engineering works for:


Poland
- Fitting out of standby bay No. 206 at the 220 kV switchyard in the Joachimów substation for the connection of the Turów BESS (2026 – ongoing), PSE
- Extension of the 110 kV switchyard at the 400/110 kV Narew substation for the connection of the busbar bridge to bay no. 6 (2025 – ongoing), PSE
- Reconstruction of the 110 kV Pakość – Pątnów – Janikowo power line (2025 – ongoing), Enea Operator
- Modernisation of the 220/110 kV Halemba substation (2024 – ongoing), PSE
- Expansion of the 110 kV switchyard at the 400/110 kV Narew substation to connect the Turośń Kościelna BESS (2024 – ongoing), PSE
- Replacement of the transformer and modernisation of infrastructure at the 220/110 kV Siersza substation (2024 – ongoing), PSE
- Expansion of the 400/220/110 kV Ostrołęka substation to connect a unit at the Ostrołęka Power Station (2023 – ongoing), PSE
- Modernisation of the 110/15 kV Myszyniec substation (2022 – 2023), PGE Dystrybucja
- Construction of the 110 kV Koronowo–Świekatowo–Żur overhead line, including the construction of the Świekatowo substation and the reconstruction of the Koronowo distribution substation (2021–2026), Enea Operator
- Reconstruction of the existing single-circuit 110 kV power line between Międzychód and Zielomyśl (2021–2024), Enea Operator
- Modernisation of the 110 kV switchyard at the Konin substation as part of the ‘Modernisation of the 220/110 kV Konin substation’ project (2021–2023), PSE
- Construction of the 110/15 kV Borek Wlkp. substation (2020–2024), PSE
- Execution of construction and installation works related to the construction/modernisation of the Herby Nowe traction substation (2020–2022), PKP Energetyka
- Reconstruction of the 110 kV switchgear at the 110/15 kV GCP Konin Nowy Dwór transformer and switchyard (2020 – 2021), Energa Operator
- Reconstruction of the 110 kV line between GCP Nałęczów – GCP Klementowice and GCP Klementowice – GCP Puławy Rudy (2019 – 2025), PGE Dystrybucja
- Expansion of the 400 kV and 110 kV Dunowo substation, including the installation of 400/110 kV transformers (2019–2024), PSE
- Construction of the 110/15 kV Pomorzany substation (2019–2023), Enea Operator
- Construction of the 400 kV Ostrołęka - Stanisławów power line (2019-2022), PSE
- Reconstruction of the 110/15 kV GCP Kleczew substation (2019–2020), Energa Operator
- Preparation of the construction and detailed design and execution of construction works in accordance with the design for the GCP Grzmiąca substation (2019–2020), Energa Operator
- Preparation of design documentation and construction works for the reconstruction of the 110/15 kV GCP Nidzica substation (2019–2020), Energa Operator
- Reconstruction of the 220 kV Pątnów–Włocławek power line at the Tomisławice open-cast mine (2019–2020), PSE
- Renovation works on the 400 kV Ostrów - Pasikurowice power line (2019-2020), PSE
- Preparation of documentation and, on that basis, the reconstruction of the 110 kV S-222 power line between R-Boguszów and R-Podzamcze and the S-223 power line between R-Boguszów and R-Marciszów, including the construction of fibre-optic routes (2018–2022), Tauron Dystrybucja
- Construction of 110/15 kV + 3 kV DC traction substations Polichna, Pułankowice, Niedrzwica, Wilkołaz (2018-2020), PKP Energetyka
- Extension and modernization of the 400 kV Czarna - Pasikurowice power line (2018-2023), PSE
- Construction of the 400 kV Jasiniec - Pątnów power line (2017-2023), PSE
- Construction of the 400 kV Gdańsk – Pelplin - Grudziądz power line (2017-2020), PSE
- Modernization of the 400/110 kV Narew substation (2017-2019), PSE
- Modernization of the 110/15 kV Nowotki substation (2017-2019), Energa Operator
- Renovation works on the 400 kV Morzyczyn - Dunowo power live line (2017-2018), PSE
- Provision of substation maintenance services at the highest voltage facilities (2016-2021), PSE
- Reconstruction of the 400/220 kV Joachimów substation (2016-2019), PSE
- Construction of a 400 kV switchyard at the 220/110 kV Jasiniec substation (2015–2021), PSE
- Modernization of the 220/110 kV Czerwonak substation (2015-2019), PSE
- Expansion and modernization of the 400/220/110 kV Krajnik substation (2014-2021), PSE
- Construction of the 400 kV double-circuit power line between Grudziądz Węgrowo, Pelplin and Gdańsk Przyjaźń (2014–2021), PSE
- Construction of the 110 kV Wolbrom - Miechów power line (2014-2017), Tauron Dystrybucja
- Modernization of the 400 kV Rogowiec - Miłosna and Miłosna - Płock power live lines with a length of 460 km (2014), PSE
- Construction of a photovoltaic installation with an energy storage at Alterga (former Eltel Networks) in Olsztyn (2014), own investment
- Construction of the Kukinia II wind farm with a capacity of 6.9 MW (2014), AWK Szczecin
- Construction of the 400 kV Stanisławów substation (2013-2017), PSE
- Construction of the 400 kV Kozienice - Siedlce Ujrzanów power line (2013-2017), PSE
- Modernization of the 400 kV Płock – Miłosna – Mościska - Rogowiec power line (2013), PSE
- Modernisation of the 110 kV Miłosław – Środa Wielkopolska overhead HV power line (2012–2020), Energa Operator
- Construction of the double-circuit 400 kV Dobrzeń - Pasikurowice - Wrocław power line (2012-2016), PSE
- Expansion of the 220/110 kV Ostrołęka substation with a 400 kV switchgear (along with the modernization of the 220 kV switchgear and construction of a new 110 kV switchgear) (2012-2015), PSE
- Construction of the 110 kV Nowogród Bobrzański - Zakładowa power line (2011-2017), Energa Operator,
- Obtaining a building permit for the double-circuit 400 kV power line Ełk - Polish border (2011-2015), PSE
- Preparation of documentation and execution of works for the construction of a 110/15 kV transformer station in Gdynia Shipyard (2011-2013), Energa Operator
- Preparation of formal and legal documentation and reconstruction of the 110 kV power line route Słupsk Poznańska - Słupsk Hubalczyków - Darżyno - Lębork Krzywoustego (2010-2013), Energa Operator
- Construction of the 400 kV Kromolice - Pątnów double-circuit power line (2010-2013), PSE
Abroad
- Germany - construction of 110/30 kV substation Unterhaun, GCP (2026 – ongoing)
- Germany - construction of 110/30 kV substation Schellweiler, GCP (2025 – ongoing)
- Germany - construction of 110/30 kV substation Stolpe, GCP (2025 – ongoing)
- Germany - construction of 110/30 kV substation Lahendorf, GCP (2024 – ongoing)
- Germany - construction of 110/30 kV substation Wachow, double GCP (2024 – ongoing)
- Germany - construction of 110/30 kV substation Röbel, GCP (2023-2025)
- Germany - construction of 110/30 kV substation Steppenitztal, GCP (2023-2025)
- Germany - 110 kV cable project for Siemens, Niederstetten (2020-2021), Siemens
- Norway - 420 kV Reisadalen - Skillemoen power line (2018-2020), Statnett
- Sweden - 400/130/20 kV Rabacken substation (2019-2020), Eltel Infranet
- Germany - construction of the HVDC Wilster substation (2019), ABB AG
- Germany - modernization of the 110/20 kV UW Plennin substation (2017), Eltel Infranet
- Lithuania - construction of a 400/330kV HVDC converter station in Alytus (2015), ABB AB
- Greenland - renovation works on the 66 kV power line (2014), Nukissiorfiit
- Liberia - modernization of the 66 kV (20 km) power line, Monrovia (2014)
- Norway - construction of a 420 kV Bamble-Rød power line (2013-2014), Statnett
- United Kingdom - modernization of overhead transmission lines (2011-2014), National Grid