Official summary
What is being procured?
TenneT is initiating a European tender to select a supplier and solution for a new Metering Data Management System ('Nemesys'). Nemesys should be the next-generation platform supporting metering data processing, allocation, and settlement-related services. Nemesys is intended to be future-proof by design: the solution must remain upgradeable, transparent and controllable over its lifecycle. TenneT therefore positions “configured standard first” as the default approach, with bespoke extensions only where truly necessary and without compromising vendor upgrades. The scope includes: - The end-to-end chain functionality from metering data intake (telemetry and periodic) through validation and correction, allocation and reconciliation support, distribution and integration, as well as reporting
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Notice history
Procurement timeline
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Data is restructured for easier reading. The official notice and procurement documents always prevail.
Source and reliability
TED · 305448-2026. Checked on Aug 22, 2026, 3:05 AM.
Data is restructured for easier reading. The official notice and procurement documents always prevail.