0,4 – 400 kV electrical works

Construction, reconstruction, technical support and repair of electrical grids, electric switchyards and substations, power transformers and other relevant objects.

Tetas paslaugos - Derinimas darbai


We are designing, calculating, configure, testing relay protection units up to 110kV, manufacturing RAA cabinets, auxiliary panels.



We design energy and communication constructions of especially importance, reconstruction and repair projects or their separate phases from initiation to completion.



We test electrical devices, lines, cables, work safety equipment, also we do chemical and chromatographic transformer oil analysis.


Solar power plants

We design and offer RES solutions based on technical calculations, perform construction works (DC and AC parts), assist our customers to prepare all the necessary  documentation required for the construction works, we perform solar power plant adjustment and commissioning works.


About us

elektros darbai tetas

PLLC „Tetas“ started back in 2005. Today the company employs up to 300 experienced and qualified specialists. Now, for more than 11 years we are know as a reliable partner and responsible contractor that guarantees high quality services.

To achieve the highest client satisfaction and quality in an international market, our company has successfully integrated quality management, environmental management and workplace health and safety management certificates, such as: ISO 9001:2008 / LST EN ISO 9001:2008, ISO 14001:2004 / LST EN ISO 14001:2005 and OHSAS 18001:2007 / LST 1977:2008 standards to assure our capabilities.


The company’s MISSION::
Innovative and effective activities to contribute to the creation of the welfare of consumers of electricity

Company VISION:
One of the most efficient electricity network service providers in the Eastern Europe

Company VALUES:

  • Immediacy – we see and use the strengths and openly talk with each other
  • Honesty – we work responsibly and transparently
  • Respect – we value the work made by others and foster respect for colleagues
  • Respect – we value the work made by others and foster respect for colleagues
  • Excellence – we are professionals, continually analyze our performance, we learn and innovate


ISO9001, ISO14001ISO_9001_2008 - ISO_14001_2005 Construction certificate

ISO9001, ISO14001ISO_9001_2008 - ISO_14001_2005 Testing, Designing and Measuring certificate

Our clients

Litgrid logo
ESO logo
Klaipėdos nafta logo
Geležinkelių projektavimas logo
Orlen logo
Montuotojas logo
Panevežio energija logo
Indastrus logo
Panevežio statybos trestas logo