JSC Enerstena
LT State Enterprise Centre of Registers, Kaunas,, Lithuania

“Enerstena” is the large and well-known Lithuanian energy company, distinguishing itself for its biomass heating technologies. We operate on the energy market since 2002. Our achievements are the following: development of our own technology, establishment of the centre of science and research and building of the team of the strongest professionals. This allows us to propose to our customers the most efficient solutions for energy generation: we design and manufacture biomass boilers, flue gas condensers, furnaces and other technological equipment for biomass boiler plants. We implement the projects from the idea to the key; and we also provide the maintenance services.

Design is one of the most important areas of our activity. Exact perception of the needs, challenges and relevance of the customer is the essential base for success of any project. A possibility to design and implement projects from A to Z ensures customer satisfaction with the result of our work. We are flexible and can offer our services in either all or individual stages of a project. We always guarantee timely finish of a mutually useful and extremely high-quality works.
“Enerstena” has got the Technological Development and Design Department with 25 employees. Our qualified engineers design boilers, furnaces, economizers and other boiler-house equipment with the use of modern design software. Most of them have higher education in Construction Thermal Engineering or equivalent and either Project or Partial Project Manager Qualification Certificates entitling them to be project managers of extraordinary structures. The employees know the legal acts that regulate design works well; they understand practical design issues and are aware of local and foreign design and construction methods.
The engineers guarantee their project solutions are compliant to the requirements of laws and other legal acts, project documents, normative construction technical, safety and application requirements.

The company is authorized to design and carry out construction of the construction works and maintenance of cultural heritage properties.

Categories of construction works: Structures of Exceptional Significance.
Groups of construction works: Residential and non-residential buildings; utility networks: for supply of gas and heating; construction works of cultural heritage.

Areas of design works: Land plot arrangements (layout of land plot); architecture; structures; water-supply and waste water removal; heating (up to 120 MW unit power) production and supply; heating, cooling and air conditioning; gas pipelines; electrical engineering up to 10 kV voltage; electronic communications (telecommunications); security and fire alarm devices; process control and automation; environmental protection; preparation for construction and arrangement of construction works; calculation of construction costs; economic; fire protection. 

Areas of construction work: Earth moving, building and installation works of structures, flashing, finishing works; installation of water supply and waste water removal utility systems; installation of heating production equipment (power up to 500 MW); installation of heating systems; installation of heating, cooling and air conditioning utility systems in the building; installation of gas pipelines (pressure up to 1.6 MPa); installation of gas engineering systems of construction works; start-up and adjustment of engineering systems and utility networks of construction works; installation of electrical engineering systems of construction works; installation of distance communication (telecommunication) engineering systems of construction works; installation of security alarm system in a construction works; installation of fire protection engineering system (fire alarm); installation of  process management and automation systems; works of start-up and adjustment of engineering and utility systems of construction works.

Design software applications:
• Heating, aerodynamics and hydraulic calculations: software applications by engineers of “Enerstena”
• Power calculations: “Visual Vessel Design” software, (the EN13445 standard “Unfired Pressure Vessels”) and “Omtech”
• 3D modelling and drawings for manufacturing: “Solid Works”
• Integrated Bentley Systems tools for industrial analysis
• Fluegas - program of combustion analysis 
• AutoCad