Dravske elektrarne Maribor d.o.o. (DEM), Slovenia’s largest renewable energy producer, has selected international technology group ANDRITZ to carry out a full refurbishment of the Formin hydropower plant.

The project includes the supply of two new turbines, generators, and related electromechanical equipment. ANDRITZ said the order value is in the high double-digit million-euro range and will be booked in the company’s third-quarter 2025 results.

Formin, a run-of-river plant commissioned more than 45 years ago, has a current capacity of 116MW. Once modernized, the plant’s total capacity will increase to 130MW.

The scope of work covers design, manufacturing, installation, testing, and commissioning. Equipment will be produced in Austria and supported by ANDRITZ’s global network.

DEM operates a fleet of plants with nearly 600 MW of installed capacity, producing around 2,800 GWh annually – about one-quarter of Slovenia’s electricity. The Formin upgrade is part of the company’s strategy to improve reliability and efficiency.

This is the first major project between DEM and ANDRITZ.