All over the world several large gas transportation pipeline projects have been executed to fulfil an increased demand for, and secure supply of, natural gas. In some countries gas infrastructure developments are new experiences. Many of these projects are facing various challenges ranging from harsh environments to public and other stakeholder engagements.
In the light of the climate change issue, various ideas have been raised to meet that challenge, in addition to optimize overproduction of electric power from renewables (e.g. solar and wind) (Power to Gas – P2G). A number of pilot projects have looked into alternative use of existing natural gas pipeline infrastructures and systems by injection of other gases such as bio-methane, syn-gas and hydrogen. There are still some open issues related to this in terms of gas quality, asset integrity, regulatory requirements etc.