EU-367 Accreditation Scheme - Civil engineering works for major line projects
TenneT TSO is launching a digital accreditation scheme via the Mercell platform to establish a list of suitable contractors for civil engineering works on new and existing high-voltage lines. In the period 2026–2035, it is expected that approximately 1,000 km of high-voltage lines (600 km of upgrades + 400 km of new lines) must be realized, a tripling of the current demand. The accreditation procedure focuses on contractors with experience in installing mast foundations and constructing access roads. The procedure is entirely digital, without physical meetings, and is intended to build a pool of qualified companies for future projects.
Works · European procedure
01What is being requested
TenneT TSO is launching a digital accreditation scheme via the Mercell platform to establish a list of suitable contractors for civil engineering works on new and existing high-voltage lines. In the period 2026–2035, it is expected that approximately 1,000 km of high-voltage lines (600 km of upgrades + 400 km of new lines) must be realized, a tripling of the current demand. The accreditation procedure focuses on contractors with experience in installing mast foundations and constructing access roads. The procedure is entirely digital, without physical meetings, and is intended to build a pool of qualified companies for future projects.
TenneT faces a major challenge in the coming years. From approximately 2026, in addition to a significant number of major upgrades to existing high-voltage lines (approximately 600 km between 2026-2035), a significant number of major new high-voltage lines are also planned to be built (approximately 400 km between 2026-2035). This may lead to a total demand of 1,000 km until 2035, which represents a tripling (x3) of the current demand. Regular Note: This concerns the current expectation; depending on various factors, the number of projects may ultimately be higher or lower. TenneT wishes to us
02Exclusion grounds
- No specific exclusion grounds were extracted. In a European tender, the mandatory and discretionary grounds of art. 2.86/2.87 of the Dutch Procurement Act almost always apply — check the European Single Procurement Document (ESPD).
03Value in context
The contracting authority did not publish an estimated value — common for a large share of contracts. The EU threshold for werken is € 5,54 M, for reference.
04Likely competitors
05Legal themes that may be relevant here
06Frequently asked questions
What is the purpose of this accreditation scheme?
What is the expected scope of the works in the period 2026-2035?
In what manner does the accreditation procedure take place?
Automatically compiled from the official tender data and documents.
07Estimated value versus the market
€ 1,4 mln
€ 3,6 mln
€ 9,1 mln
Gegunde waarden in CPV 45 · werken n=3159