Booking capacity at DSO network points

Which shippers can use DSO exit capacity?
Shippers wishing to transport gas to the regional (distribution) network must have a B Licence (LB). You can find out more about this on our website under Process steps for licence application.

Do shippers have to book DSO exit capacity themselves?
No. Exit capacity at these points does not need to be booked in advance by shippers. GTS charges shippers for capacity monthly in arrears based on the OV-exit (M1) data received. If necessary, bookings can be adjusted four months later based on the OV-exit (M4) data.

What is the booking based on?
Bookings are based on OV-exit data from the Central Connection Register (C-AR). The C-AR is managed by Energie Data Services Nederland (EDSN). The C-AR records standard yearly usage per connection for profile customers and maximum usage for telemetry large-scale users. Every month, DSOs collect the OV-exit data from the C-AR and send this data to GTS and the shippers.

Contracting capacity at the virtual point for distribution companies (VPC) NWP 301549
The OV-exit data that GTS receives from the DSOs is aggregated per shipper for capacity contracting purposes and booked at a (virtual) DSO point: the virtual point for distribution companies (VPC).

Detailed information, such as standard yearly usage and maximum usage per individual network point, is available via the M1 and M4 OV-exit messages that shippers receive from the DSOs.

How does GTS calculate the capacity booked and amount payable on the invoice?
The calculation method is explained in the Excel file at the bottom of this page entitled ‘Factors and fractions DSO exit 202X calculation tool’. This document also contains a ‘Quick cost calculator’, which you can use to check the invoice amount.

How often does GTS revise the factors and fractions?
GTS last revised the telemetry profile factors on 1 January 2023.We determine the hourly fractions for profile customers and the booking and split factors once a year (Q4).We determine fit factors for both M1 and M4 (adjustment) data every month.

Booking DSO entry capacity
Shippers should book sufficient entry capacity in advance at the virtual point for distribution companies (VPC) for gas that is fed into the GTS network from a distribution network. Entry capacity can be booked by sending a completed 'Request for entry and/or exit capacity' form by email to our Customer Desk.

Where can I find more information on DSO exit capacity?

• See Transmission Code Gas articles 2.1.2b to 2.1.2g for a detailed description of how DSO exit capacity is calculated and the factors we use.
• For more information about how costs are calculated, see article 3.2.3.8 of the Tariff Code Gas.

Any more questions?
Please feel free to contact our Customer Desk, +31 50 521 33 33 or by email: customerdesk@gastransport.nl