Greening the Dutch gas network

Project Description:

Energy transition is an evitable way to reach a decarbonized world in 2050. Although replacement of natural gas by green gas have some big challenges, green gas is one of the key players in this transition due to its low carbon footprint and its compatibility with the current natural gas networks.

Natural gas starts from a specific source in upstream, and through high-pressure transmission lines it reaches low-pressure distribution network and ultimately delivered to consumers. Unlike natural gas, green gas is produced locally, often with constant rates, and is injected into low-pressure distribution networks. On the other hand, the demand is not at constant rates. As we know, in summer time the demand is much lower than the winter time. This supply and demand dissimilar rates imposes a significant challenge in distribution network management.

This challenge motivates the development of an economical-technical optimized procedure. There are some options for this challenge to be resolved, which can be classified in 2 groups:

1. Inside-the-network strategies:

 Dynamic pressure management: creating a local storage capacity in the low-pressure gas network by making pressure adjustments in the inlet points

 Overflow: compression and injection surplus production into the gas transport pipeline

 Creating a network connection: make a new connection between gas distribution grids

2. Outside the network strategies:

 Local storage in the green gas production field (high pressure storage).

 Demand side management, including connecting green gas supplier to CNG stations.

 Coordinating the maintenance moments of installations for injectors and customers.

 Encourage the connection of green gas producers in network sections, where there is

sufficient demand.

It is not always clear which technology or solution should be used under the given circumstances. This MSc thesis project aims to develop such optimized supply-demand management strategy.