Public Gas Corporation – OIIS 1

The project "Modeling and Development of an Optimization Integrated Information System (OIIS) for the Public Gas Corporation (PGC)" has as general purpose the modeling, design and development of an OIIS which will support the executives of PGC in the decision making procedure on issues such as: Natural Gas (NG) and Liquefied Natural Gas (LNG) supply and demand meet in an organized and systematic manner. The OIIS to be developed under the project will create a competitive advantage for PGC as it will encompass all the parameters involved in the decision-making procedure of NG/LNG supply in the modern conditions of the liberalized market established and it will give the enterprise the possibility to make decisions that optimize as much as possible its financial results. The expected outcome of the project is an Optimization Integrated Information System (OIIS) in which the problem of decision-making on the supply of Natural Gas (NG) and Liquefied Natural Gas (LNG) will be modeled as a Mixed/Integer Linear Programming problem. 
The implementation of such a system will support the various actions that the enterprise’s executives carry out, concerning the decision making procedure on supplies, through the following specific features provided:Possibility to execute, process and store different supply scenarios, by altering various parameters of the problem; Gradual optimization of the accuracy of the proposed by the system decisions, through the continuously update and incorporation of history data; Production of reports on the data concerning the overall process of supplies.

PGC – OIIS 2
Extension of the Optimization Integrated Information System (OIIS) for the Public Gas Corporation (PGC),  
Ongoing, Public Gas Corporation (PGC).    

The objective of the project is the modeling, in terms of mixed-integer programming, and the integration in the OIIS of new commitments for DEPA, derived from newcomer regulations in the activation environment of the enterprise, that produce additional requirements related to the operational activities of the company. Additional objective is the expansion of the OIIS application with the integration of extra operational requirements, which have incurred from the trial operation of the system and the consulting to the executives of the company for their familiarization with the OIIS and for other optimization issues. The expected outcome of the project is the expansion of the OIIS’ s model, which aims to support the various business actions of the PGC’ s executives during decision making process, with the:

• Modeling of a virtual natural gas trading node (hub);
• Incorporation of an additional group of constraints related to the total supply quantities purchased through separate supply contracts in a common entry point
• Modeling of intra-reservoir transactions
• Integration of an additional group of constraints, concerning the daily tank stock and gasification quantities
• Inclusion of transportation cost in case of past data usage
• The calculation of available space in the tank, based on the regulation of Hellenic Gas Transmission System Operator (DESFA).