SR 400 MVA 400 kV Power Transformer (Synthetic Ester Oil) and 63 MVAr 21 kV Variable Shunt Reactor (VSR) Synthetic Ester Oil-Immersed

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In brief

Helen Electricity Network Ltd. (Helen Sähköverkko Oy) is procuring a 400 MVA 400 kV power transformer and a 63 MVAr 21 kV variable shunt reactor, both synthetic ester oil-immersed, for a new 400 kV substation in Sörnäinen, Helsinki, Finland. The intended delivery year is 2030. The deadline for submissions is 23 October 2026. Notice, tender documents, and submission instructions are available on tarjouspalvelu.fi.

Updated October 14, 2026

Deadline

8 days left

October 23, 2026

Contract Details

Key facts

Buyer: Helen Electricity Network Ltd. (Helen Sähköverkko Oy)
Deadline: October 23, 20268 days left
CPV Code: 31170000 — Transformers
Procedure: Negotiated procedure with a call for competition
Source: Finnish Procurement Portal

Budget

Not disclosed

Duration

Not specified

Location

Helsinki-Uusimaa

Type

Supplies

Original Tender Description

SR 400 MVA 400 kV Power Transformer (Synthetic Ester Oil) and 63 MVAr 21 kV Variable Shunt Reactor (VSR) Synthetic Ester Oil-Immersed Helen Sähköverkko Oy is building new 400 kV substation in Sörnäinen, Helsinki Finland. Subject of the procurement is delivery of power transformer and VSR reactor for Helen Sähköverkko Oy. Intended delivery of power transformer and VSR reactor is year 2030. With this invitation to participate Helen Sähköverkko Oy is looking for capable and interested candidates to

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Basic Requirements

Company registration in EU required
Proven track record in similar projects
Financial stability documentation