Project description

The customer, HZI, needed to construct a waste-to-energy (WtE) plant for electricity and heat production in the Helsinki metropolitan area in Finland.

The WtE plant has a nominal capacity of 99 megawatts (MWth) of district heat and 62 MW of electricity for the power grid. Waste is burned in two grate-fired steam generators and the electricity produced by a gas turbine and a steam turbine. The live steam from the WtE boilers is super heated before entering the steam turbine in a separate HRSG boiler of the gas turbine.

Citec's scope

Citec provided engineering and documentation services through our concept local presence with cost-efficient global resources.

Citec’s scope included basic engineering for:

  • Boiler support steel structures
  • Service platforms
  • Building frame (including secondary steel structures). Building steel weight of approximately 2000 tonnes.

We also provided input for detail engineering, for example:

  • Steel overview drawings
  • Static drawings
  • Joint forces tables

We also delivered Calculation reports related to building permit requirements and also a part of the final documentation created for the customer and end customer.

Software tools used in the project include Global BIM software, PDMS 3D design and TEKLA  structures.

Case in brief
Customer: Hitachi Zosen Inova AG (HZI). End customer: Vantaan Energia
Project location: Finland
Year completed: 2013