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Construction and Renovation of Heat and Electric Power Sources

The construction of power-generating facilities is one of core activities TENZA is engaged in. The company has considerable experience in this field, verified by many successful projects.

TENZA, a.s. designs and in cooperation with clients seeks optimal solutions for the construction and renovation of new sources, including:

  • laying down initial technical and economic project specifications
  • analysis of the existing source and possibilities of its renovation
  • technical and economic studies and return on investment calculation
  • production of project documentation
  • comprehensive project solutions – delivery, assembly and putting into operation
  • negotiations with respective authorities and institutions as authorized by the client

Heat and Electric Power Sources

Heating Plants
Heating plants are often the heat source in centralized heat delivery systems. The output of standard heating plants ranges from several kilowatts to dozens of megawatts. These plants can combust various types of fuel - gas, oil, coal or biomass. Electric power may also be used to produce heat in heating plants in isolated cases. Boiler plants are either separate buildings, annexes to buildings, or specially adapted rooms where the technical equipment can be installed. Mobile container heating plants offer a positive advantage of simple installation not requiring substantial structural changes. The construction of heating plans includes connecting to all utilities and civil engineering services.

Combined Heat and Power Plants
Combined heat and power plants generate both heat and electric power in a highly efficient manner. TENZA has participated in the construction of power plants having heat output from several kilowatts to hundreds of megawatts. TENZA was a general contractor for many projects, and a member of consortium or subcontractor in some of them. The most frequently burned fuel in these sources is coal or gas but biomass has been gaining ground recently. TENZA has several years’ experience of using biomass as fuel and has taken full advantage of it to carry out in-house research and development of innovative combustion technologies.

Power Plants
TENZA has been participating in the renovation of large power plant units of ČEZ for several years. It is a subcontractor for pipe assemblies in engine plants. The operation of small output fossil fuel power plants is usually economically disadvantageous and TENZA therefore places great emphasis on power generation from renewable sources. It applies especially to the generation of electricity by means of solar cells and use of wind energy.

Refuse Incinerating Plants
Several years ago TENZA founded a group to tackle the issue of municipal waste incineration. The very first project the group has participated in is the renovation of the refuse incinerating plant in Brno. TENZA acts as the building supervisor in the project. Its task is to represent the client and supervise due progress on the refuse incinerating plant renovation.
TENZA intends to apply the expertise gained in the SAKO project on construction of new refuse incinerating plants where the company is ready to act as the general contractor.

Biogas Stations
The construction of biogas stations (BPS) employing the controlled process of anaerobic fermentation, has been included in the production programme of the company since 2004. The anaerobic technology means that anaerobic microorganisms decompose organic material and convert it to biogas that can be used to generate electricity and heat. Fermentation improves substrate homogeneity, decreases bad odour and greenhouse gas emissions. It is an efficient method for treating any organic substrate such as animal excrements, biomass, organic municipal and industrial waste, domestic wastewater, etc.

Central Heat Delivery Systems (CZT)
TENZA performs complex construction of central heat delivery systems. The company builds new sources and pipeline distribution networks to supply heat to households and other consumers. Besides heating plants and power plants, boiler houses burning solid and gaseous fuel also work as sources of heat. The distribution system consists either of two pipes including compact transformer stations in buildings or of four pipes with central preparation of hot tap water.