The project consists of four phases:
- Feasibility study phase: The feasibility study has been completed. TenneT has investigated whether the high-voltage power lines can be laid underground and has selected a suitable route.
- Basic design phase: The basic design was then drawn up. The chosen plan was developed in technical detail and assessed. It is now clear where the cables will be laid underground.
- Detailed design phase: The project is currently at this stage. TenneT is finalising the route for the underground cables. The design is now detailed enough to reach agreements with landowners and users, apply for planning permission and amend the local development plan. We are also continuing to prepare for the works.
- Implementation phase: At this stage, we award the contract to a contractor and suppliers. Work can then begin. The cables are laid underground by trenching or drilling. Once the cables are in place, they are connected to a manhole or a substation. Once the underground connection has been thoroughly tested, it is put into service. The old overhead connection is then removed. This phase takes approximately 24 months.
Planning
Subject to change
| Quarter 4 2026 |
- Publication of the route on apeldoorn.nl/hoogspanning, showing work areas and access roads
- Information session for local residents organised by the contractor
|
| Week 42, 2026 |
- Trees requiring a felling permit are being felled
|
December 2026 /
January 2027 |
- Construction of the take-off point at Ecofactorij II
- Handover of the route (the alignment), which has been cleared of all obstacles and is ready for construction
|
| End of 2026 |
|
| Early 2027 |
- Start of drilling and laying of the underground cables
|
The energy transition is in full swing. During the transition to renewable energy, we must ensure that everyone has sufficient electricity. That is why network operators are investing in strengthening and expanding the electricity grid. This may lead to delays in this project. We will keep residents, businesses and other stakeholders informed of any new developments.