Quiero gas natural Here you will find the contracts and documents related to the management of third-party access to the network. Rules and protocols

Downloadable documentation on regulations

Access contracts

View Type 1 and Type 2 Access Contracts

The people who subscribe to Third Party Network Access (TPA) contracts are the supply companies (who supply natural gas to the end user) and infrastructure owners (transport companies or distributors) who own the networks that the supply points are connected to for each contract.

The supply company that establishes the supply contract with the end user is the company that requests that the network owner establish a corresponding contract for third-party access to the network.

Owners of Transport and Distribution Company facilities within the Spanish Gas Association, SEDIGAS, have developed an IT application called SCTD (Transport-Distribution Communication System), to enable all users involved in establishing third party access contracts to carry out the necessary administrative tasks for those contracts.

Type 1 access contract

Should be used when the procuring supply company already has a contract signed with the transport company regarding entry points.

› Type 1 Access Contracts (PDF 181 Kb)

Type 2 access contract

Necessary when the supply company and the distributor do not have a contract regarding direct entry points for gas and the gas will enter through another supply company.

› Type 2 Access Contracts (PDF 172 Kb)

Measuring and distributing

Consult the indexes used for distribution of domestic/commercial consumption.


The attached document details the indexes applied for distributing domestic/commercial consumption included in aggregate billing for third-party access to the network, like the indexes for RMS (Regulation and Measuring Stations) emissions representative of the market, for calculating daily quotas when deciding on final distribution quantities. It also shows the emissions indexes representative of the domestic/commercial market used for calculating the final distribution in order to assign daily consumption limits.

Distribution procedures

As a distributor, Nedgia provides the Gas System Technical Manager and the Transport Companies with the relevant distribution data for the gas carried through their infrastructure on day n+1. In compliance with the system technical management rules, the distribution will be the quantity of gas transported, re-gasified, distributed and stored by the different members involved in the gas system.

Related files

› Daily distribution procedures (PDF 445 Kb)

Medición gas natural

System technical manager

Regulatory provisions and applicable standards for the measuring, quality and odorisation of gas.

Enagás website

Gas quality readings

Check readings for municipalities with satellite plants for liquefied natural gas.

Gas quality parameters by municipality

Follow the link below to see gas quality readings broken down by municipality, and daily, monthly or bimonthly frequency. Below is a table with the information relating to the gas quality readings. The reading is a daily average. You can also consult the information relating to the monthly and bimonthly meter readings.

In compliance with the amended Detailed Protocol 01 concerning the Gas System Technical Management Rules, published in the Official State Gazette (BOE) on 3 October 2011, gas quality readings, broken down by municipality, are now available to users.

Gas quality readings