Economic and ecological aspects of using cogeneration in Heat Energy Enterprise (HEE)

Operation of coal-based heat energy enterprises results in polluting the air with gases and dust. The evolution of heating systems by building CHP blocks reduces the negative environmental impact. Cogeneration devices powered by natural gas enable the simultaneous production of heat and electricity. This leads to smaller needs for energy from conventional sources and thus contributes to reducing the amount of burned coal and the emission of harmful substances, especially CO2 and dusts, into the atmosphere. The produced heat is transported to the existing heating system, while the energy can either be used for the business’ own needs or sold to the external network. As a result, costs of functioning become lower and new possibilities of obtaining heat recipients are created. The company’s competitiveness increases and, due to investing in advanced technologies, it is perceived as innovative and modern.

Examples of our work


Construction design for the project ‘Construction of a highly-efficient cogeneration source for the Municipal Thermal Energy Company (Ltd) in Dębica’

For this task, a construction project was drawn up along with all the necessary documents, including a construction permit, based on two cogeneration aggregates with total heat output of 4.6 MW and electrical power of 4.6 MW. A building with specially dedicated installation was designed, taking into account the high demands associated with noise levels legally approved for buildings located in the city centre.

 

Specifically, the project included:

  • demolition of the existing industrial building
  • construction of a new building for energy purposes
  • electrical installation
  • gas installation
  • plumbing installation
  • venting system installation
  • heating installation
  • sanitary sewage connection installation
  • transformer station installation

 

                                                                                                                                  Additionally, the contract included the verification of the legal status of the plots

                                                                                                                                  of land associated with the investment and the terms and conditions of connecting

                                                                                                                                  to power and gas networks.


Construction project of a CHP system for the Department of Heat Management in Oleśnica

The nominal power of the thermal network before the investment was about 50 MW (coal-based technology). The system is designed to generate warm water for general use during summer and supply the functioning of existing boilers in winter.

 

Within the task, complete construction and executive projects were made, based on the installation of four CHP units powered by natural gas, with total heat output of 2.6 MW and electrical power of 2.1 MW.

 

During the process, various documents were drawn up and obtained for the investor, including for example:

  • construction development conditions
  • permission for conducting archaeological research
  • conditions of connecting to the existing gas network
  • conditions of connecting to the existing electricity network
  • construction permit
  • technological projects
  • CMAA (Control and Measurement Apparatus and Automation) projects
  • construction project along with all the supporting documents necessary for obtaining construction permit
  • industrial executive projects, with particular emphasis on the comprehensive project of receiving heat and electricity from a cogeneration unit
  • technical specification of the execution and collection of works
  • expertise and inventories for design and construction purposes
  • geological surveys
  • acoustic safety project
  • works pre-measurement and investment cost estimation

Modernisation of the municipal heating plant in Wołomin

A multi-sector project concerning the modernisation of the municipal heating plant in Wołomin by building a high-efficiency cogeneration system that would produce coupled electricity and heat on the basis of two systems with gas engines of about 2 MW heat output and about 2MW electrical power each, with the possibility to install additional CHP systems with the total power of about 4MW.

 

The subject of this project was an architectural and structural design of a thermal power plant building, a heat accumulator and ground hardening for the construction of high-efficiency CHP systems based on natural gas in the municipal heating plant in Wołomin.

 

 

 

The tasks included the preparation of:

  • technological project
  • construction projects along with all the documents required for obtaining a construction permit
  • application preparation and cooperation with the investor in order to obtain the construction permit
  • industrial executive projects, with particular emphasis on the comprehensive project of receiving heat and electricity from a cogeneration unit
  • technical specification of the execution and collection of works
  • CMAA (Control and Measurement Apparatus and Automation) projects
  • expertise and inventories for design and construction purposes
  • geological surveys
  • acoustic safety project
  • works pre-measurement and investment cost estimation
  • cooperation in drawing up the SETC (Specification of Essential Terms of the Contract) for the delivery of equipment and investment implementation and participation in creating written replies to tenderers’ offers

Project documentation for EDF as part of the ‘delivery, installation and launch of a CHP aggregate in the Heat and Power Plant in Zawidawie’ project

The nominal power of the heating system before the investment was about 15 MW (gas and coal technology). The aggregate will serve as a high-efficiency cogeneration source, which, during summer, will be the main heat source for supplying the heating grid with warm water. During winter, the aggregate will cooperate serially with the two existing gas cauldrons (which constitute the main heat supply during the heating season), regardless of the required heat system parameters.

 

Within the task, complete construction and executive projects were made, based on the installation of a CHP unit powered by natural gas, with total heat output of 2.6 MW and electrical power of 2.7 MW.

 


A contract with PGNiG Energy Inc. for the execution of a technological audit and environmental impact assessment in the functioning heating plant owned by Stolbud Włoszczowa Inc.

The tasks included:

  • an audit of the production part of the heating plant
  • an audit of the distribution part of the heating plant
  • an audit of other parts of the technological chains
  • environmental impact assessment (emissions, waste management, wastewater management)
  • the analysis of the issued environmental decisions and permissions
  • the analysis of the procedures used for environmental protection
  • technology assessment in terms of BAT requirements

 


Drawing up a proposal for the construction of a high-efficiency cogeneration system for ZEC Ltd in Pabianice

The nominal power of the heating system before the investment was about 67 MW (coal-based technology).

 

A two-variant proposal was made for the CHP system with a total heat output of about 10 MW.

 

The proposal included:

  • the technical and economical analysis of the profitability of the investment
  • the environmental analysis during exploitation

 

 

Ecokube sp. z o.o.

ul. Wólczańska 128/134

90-527 Łódź

tel. + 48 42 630 66 00

biuro@ecokube.pl