Everllence will supply a 13.5 MW steam turbine-generator train to Yara’s fertilizer plant in Poppendorf, near Rostock, Germany, enabling the site to convert process steam from nitric acid production into electricity and make better use of energy already available within its operations.
The new unit will feed power directly into the plant’s internal electricity grid, improving energy efficiency and helping reduce the facility’s carbon footprint.
Yara produces a range of agricultural fertilizers at Poppendorf, where nitric acid production generates substantial heat through a highly exothermic process. That heat is used to produce steam, which currently drives two Everllence compressors through two existing steam turbines.
Under the new arrangement, exhaust steam from the turbines, at a pressure of 12 bar, will be routed to the new turbine-generator train. The unit will expand the steam to 4 bar to generate electricity, processing up to 75 metric tons of steam per hour at full load. The electricity will be used to power production facilities across the site.
Holger Tewes, Head of Sales and Project Management Steam Turbine at Everllence, says: “The chemical industry places particularly high demands on plant availability, operational reliability and efficiency. Our steam turbine-generator train is precisely tailored to Yara’s processes and enables the efficient use of existing process steam for power generation. At the same time, we are continuing a long-standing collaboration: Everllence turbomachinery has been operating in the nitric acid plant in Poppendorf since the 1980s.”
Everllence will supply a MARC4 steam turbine-generator train with an output of approximately 13.5 MW, including the generator and control system. The steam turbine will be manufactured at the company’s Bengaluru facility in India, which has global responsibility for steam turbine power-generation solutions with outputs of up to 45 MW.
Hassan Ajami, Head of Turbomachinery New Equipment MEA at Everllence, explains: “This project demonstrates how we combine our international manufacturing and engineering expertise to provide customers with sophisticated solutions tailored to their specific processes. Process steam is a valuable energy resource. By converting it into electricity, industrial companies can make better use of the energy already available within their production processes.”
The MARC4 steam turbine will be designed to meet the API 612 industry standard, which includes additional design and quality inspections and a mechanical test run at Everllence’s steam turbine test bed in Bengaluru. The test facility was commissioned in 2024.
The generator train will also comply with Germany’s VDE-AR-N 4120 grid connection requirements. Everllence and Yara have conducted several dynamic electrical simulations to verify that the unit can be safely integrated into the plant’s internal power grid and meet all applicable requirements.
The project builds on a long-standing partnership between the companies while giving Yara another way to extract value from its existing production processes by converting residual steam energy into electricity.
