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Commercial
> ISIS
> ISIS key functionality
ISIS® is used by Interconnector and their Shippers to manage the
day to day workflow of the gas transportation operation. The key application
areas are described below.
ISIS® uses daily and hourly matching information to track the title
transfer of delivered and redelivered gas. Confidentiality is assured
by the use of aliases to represent the parties involved in transactions.
Shippers can enter their own trades or rely on a third party agent to
act on their behalf.
ISIS® allows Shippers to advertise and trade capacity and inventory
on an hourly basis. These advertisements can be restricted to other
ISIS® users or can be published to a world wide audience through
the Interconnector.com Online
Services area. Information of an operational nature such as details
of service interruptions, planned maintenance etc. as well as notification
of system events are an important part of the ISIS® communications
suite.
ISIS® tracks details of Shippers' entry and exit capacity at each
connection point. If operating conditions allow, a quantity of interruptible
capacity may be made available.
Various configurable parameters allow the inventory within the pipeline
to be modelled and managed. ISIS® notifies Shippers if their inventory
levels breach flexible warning and constraint limits and will eventually
take automatic corrective action if required. Shippers and Control Room
Operators can easily see details of past, current and predicted inventory
positions. The inventory model also allows Shippers to store gas within
the pipeline.
ISIS® records daily and hourly nominations. These are automatically
created from details of trades entered by Shippers. An extensive set
of validations are performed on nominations and they are automatically
adjusted if required to meet the contractual and operational requirements
of the Interconnector. These scheduled quantities are then used as the
basis for setting the flow rates at the various connection points and
for allocation of physical gas flow.
Automatic metering interfaces gather gas flow information from all connection
points and these values are allocated to Shippers' scheduled quantities
on a regular basis. Hourly allocation statements (including details
of fuel gas) are available to Shippers and to Interconnector. Operational
balancing agreements are used to smooth out slight differences between
scheduled quantities and physical flow.
ISIS® keeps track of Shippers' primary capacity rights and can apportion
interruptible capacity to shippers should the operational conditions
of the pipeline allow.
Existing Shippers may make some of their capacity available for purchase.
ISIS® assists this secondary trading market by providing facilities
for Shippers to advertise their capacity internally within ISIS or externally
in the Online Services section here on Interconnector.com.
Based on Shippers' nominations and certain agreed rules ISIS® determines
when the physical flow direction of the Interconnector is to be changed.
A Flow transition is a relatively complex operation which may require
changes in Shippers' inventory levels. ISIS® has extensive processing
and reporting facilities to assist IUK and shippers to manage their
inventory position in order to change flow direction as efficiently
and quickly as is reasonably possible.
ISIS® has wide ranging reporting facilities covering such areas
as nominations, inventory, allocation, capacity utilisation etc. All
of these reports are available in HTML format on-line and many can be
downloaded as an Excel spreadsheet or CSV file to enable data exchange
with third party systems. Business Objects™ provides ad-hoc reporting
and analysis capabilities to ISIS.
ISIS® tracks all aspects of Shippers' use of the pipeline to enable
the preparation of invoices for transportation and other transaction
charges. ISIS® interfaces to external accounting systems using a
combination of Business Objects and spreadsheets.
ISIS® automatically adjusts Shippers' nominations to accommodate
reductions in available capacity whether these reductions are due to
planned maintenance or some unforeseen event either in the Interconnector
or in adjacent transportation systems. Shippers are kept fully informed
by ISIS® reports of their expected end of day quantities so that
they can manage the event and source gas from elsewhere to meet their
customers requirements.
ISIS® automatically generates gas flow notices based on knowledge
of Shippers' nominations and any constraints affecting the operation
of the pipeline. These notices are automatically transmitted to adjacent
transportation system operators using Edig@s or National Grid Gas formats.
Operators have the ability to manually generate, edit and send notices
if neccessary.
A suite of aggregate reports showing nominations and scheduled quantities
give operators a bird's-eye view of the operation of the Interconnector.
Operators can also look ahead using the various forecast reports within
ISIS® to predict the events of future gas days.
 Developed
by Interconnector and Electronic Data Systems, ISIS® is designed
for:
- 99.9% availability
- Continuous updates
- Automatic operation
- Quick recovery
- High security
- Audit trail
ISIS® is an Oracle Application Server based system
written predominantly using PL/SQL and PL/SQL Server Pages. Users interact
with ISIS using standard browsers.
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