EVO intends to award the contract for the implementation of the revisions in the waste-to-energy plant (lot 1) and in the combined heat and power plant (lot 2) from 2023 for a period of 2 years with two extension options of 2 years each. The lots will be awarded to the best bidder, which may be different bidders for lot 1 and lot 2.

Implementation of the boiler overhauls in the Offenbach waste-to-energy plant with three incineration lines with a rated thermal input of 28 MW each without the refractory work. Simple boiler tubes up to a quality of 16 Mo3 are installed on the pressure section of the boilers, so that no annealing treatments are necessary. The superheater 3 and the fin tube walls of the combustion chamber are coated with cladding made of Alloy 625. All work on the boiler pressure section must be carried out and documented in accordance with the requirements of EN 12952 for water-tube boilers. Non-destructive tests required by regulations or TÜV (e.g. radiographic images or crack tests) must be coordinated, commissioned or carried out by the contractor.

Execution of pressure part revisions at the two Offenbach fluidized bed boiler plants with a combined rated thermal input of approx. 166 MW. As part of the revision, the processing, in particular. Welding work of the materials 13CrMo44, 10CrMo910 and X20CrMo V121. All work must be carried out and documented in accordance with the requirements of EN 12952 for water-tube boilers.