TDTR stands for Time Duration Transport Right. It is a product offered by TenneT, designed for companies directly connected to the high-voltage grid.
With a TDTR contract, you are guaranteed access to your contracted transport capacity for at least 85% of the hours in a year. During the remaining 15% of the hours, TenneT may impose (partial) limitations, for example during expected peak loads. The grid operator must announce these restrictions at least one day in advance (before 8:30 a.m.).
A TDTR can also be combined with fixed transport rights. This allows part of your capacity to always remain available, while another part falls under TDTR conditions. It provides more flexibility and enables faster access to transport capacity.
Participating in a TDTR contract gives access to capacity that would otherwise not be available. For companies, this means projects can start earlier without waiting for long-term grid reinforcements. In addition, the tariff for TDTR capacity is lower than for standard transport rights, offering financial benefits. Since limitations are always announced in advance and cover no more than 15% of the time, you know exactly where you stand and can plan accordingly.
TDTR is especially attractive for organizations with flexibility in their operations. Examples include battery systems that can charge and discharge, production processes that can be scheduled outside peak hours, or businesses with backup facilities that can temporarily step in. Companies on the waiting list for grid capacity can sometimes start earlier via TDTR, as they do not need to wait until full grid expansion is completed.
For a TDTR, there are clear pros and cons:
Check if your connection is eligible and register for TDTR.
TenneT evaluates whether you have the flexibility to participate.
You will receive a proposal including capacity, compensation, and conditions.
Install metering and control systems to implement limitations.
Formal onboarding with TenneT (and CSP if required).
Reduce consumption or feed-in when TenneT announces restrictions.
Join congestion management and earn by using your flexibility smartly. Benefit from attractive compensations while supporting a reliable electricity grid.
A large cold storage facility signs a TDTR contract with TenneT for 100 MW.
The company installs an EMS and makes arrangements with a CSP for control.
TenneT reports: tomorrow between 17:00–20:00 a limitation applies. The temperature is lowered in advance, so during these three hours there is room for a rise.
The company receives a discount on grid fees and the agreed compensation for the limitation.
Alternative Transport Rights (ATR) are contract models in which the grid operator grants the user full transport capacity for most of the time. During the remaining time, transport capacity is either restricted according to a pre-agreed schedule (TBTR) or can be restricted on request up to one day in advance (TDTR).
Congestion management is aimed at preventing and resolving congestion situations. It is applied when actual conditions require deviations from the planned electricity transport schedule (e-programme), resulting in a temporary local transport constraint.
A Congestion Service Provider (CSP) is a party that offers flexible capacity on behalf of one or more grid users to the grid operator in order to help resolve grid congestion. The CSP plays a central role in the congestion management process.
Transport capacity is the amount of electricity that can be transported safely and reliably via the grid operator’s electricity network to and from a connection or area.
Flexibility is delivered at fixed, pre-agreed moments. This provides certainty and yields a fixed availability fee.
With every market request you are obliged to place a flex-bid. The income depends on market prices.
You offer flexibility whenever it suits you. Successful bids generate a fee per activated megawatt hour.
