With regard to the usage of maximum system capacities, in 2013 the maximum
entry figure through Campo Maior was 110.4 GWh and 150.2 GWh through
Sines. These recorded highs are equivalent to the use of 82.4% of the maximum
capacity in Campo Maior and 78% in Sines. With regard to the interface with
underground storage, the maximum extraction reached 85.1GWh whilst the
maximum injection reached 23.5GWh, equivalent to almost 100% usage of the
maximum infrastructure capacity.
During 2013, plans were laid out for the commissioning and entry into operation
of a new cavern alongside the underground storage caverns currently in
operation, thereby guaranteeing sufficient availability for both the gas station
and the operating conditions of RNTIAT.
With regard to the supervision of the system carried out from the dispatch
centre, December 2013 saw the conclusion of the upgrade of REN Gasodutos
supervisory, control and data acquisition system, leading to the involvement of
various technical teams and the coordination of activities to ensure availability of
supervision and to control the NG transmission system. The aim of this project,
covering all the stations, is to ensure the timely availability of SCADA data to
those downstream interfaces that depend on it, thereby ensuring the proper
functioning of their technological processes.
The transition to the new SCADA system (VS ICS) took place gradually
(station by station), ensuring users could still have access to all the previous
functionalities in a more user friendly and intuitive environment, as well as
providing access to new technological functionalities with the aim of facilitating
access to information and subsequent decision making.
The new regulations relating to the European grid laid down by Regulation EC 715/2009, changing the framework for internal NG transmission systems, impacted above all on capacity
allocation Having therefore introduced the concept of auctions, it was necessary
to adapt the internal rules that had been in effect until this point in Portugal, to
ensure progressive and rapid adaptation to this new scenario. In this sense, the
operating system was directly involved in the establishment of regulations and
products included in the publication by ERSE in August 2013 of the Procedures
for Access to Infrastructures Manual (MPAI ), as well as in the review of the System Global Management Procedures Manual (MPGTG). Alongside the establishment of these
regulations it was necessary to put them into operation via the implementation
of the relevant access platform with the support of the operating system.
Remaining on the subject of new regulations relating to the management of
access to the infrastructure, and with reference to the adoption of new concepts
across the Portuguese gas system, of note is the operational slots that can be
reserved by market agents for the loading and unloading of LNG via the carrier
vessels at the Sines terminal, which is linked to the other new development
surrounding operational storage capacity relative to the capacity dedicated
exclusively to the undertaking of these operations.