CTES Main transformers 110kV

Vantaan Energia Oy is planning a purchase of the complete delivery of two (2) Main transformers

Vantaan Energia Oy (later also the Purchaser) is planning to invest in non-fossil fuel district heat production by purchasing new electric boilers to be installed in new underground seasonal heat storage of 1,000,000 m3 filled with hot water up to 140 C. The electric boilers and related auxiliaries will be energized with two 110kV Main transformers connected to 20kV switchgears. AFRY Finland is acting as a technical consultant on behalf and for Vantaan Energia Oy who will be the contracting entity in this procurement. The Works shall be consisting of the complete delivery of two (2) Main transformers comprising preliminarily: - Two (2) OFWF, 75MVA, 118/21kV, Main transformers - Two (2) centerline disconnector with earthing blades on both ends - Two (6) HV- cable terminations - Manufacturing and assembly of all necessary auxiliary equipment with internal wiring - All cabling and conductors inside the scope of supply - Packing and transport to the site - Erection and installation in the underground cavern - Start-up, commissioning, and test-run - Necessary consumables and spare parts for commissioning - Documentation and O&M Manual and training - Possible Options (mandatory options will be specified in tendering phase): - Underground haulage to installation site in the underground cavern The Works shall be compliant with Finnish law and stipulations by Finnish authorities. In addition, the design and implementation of the Works shall meet the EU and Finnish design standards and norms. Preliminary Schedule: - Estimated delivery time: 2026 Q4- 2027 Q1 - Estimated taking over: Autumn 2027 More specified information about scope and schedule will be submitted in the tendering phase.