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ID: 124256

Future of the UK gas network / Dodds, Paul E; McDowall, Will

McDowall, Will	Journal Article
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Publication

2013.

Summary/Abstract

The UK has an extensive natural gas pipeline network supplying 84% of homes. Previous studies of decarbonisation pathways using the UK MARKAL energy system model have concluded that the low-pressure gas networks should be mostly abandoned by 2050, yet most of the iron pipes near buildings are currently being replaced early for safety reasons. Our study suggests that this programme will not lock-in the use of gas in the long-term. We examine potential future uses of the gas network in the UK energy system using an improved version of UK MARKAL that introduces a number of decarbonisation options for the gas network including bio-methane, hydrogen injection to the natural gas and conversion of the network to deliver hydrogen. We conclude that hydrogen conversion is the only gas decarbonisation option that might enable the gas networks to continue supplying energy to most buildings in the long-term, from a cost-optimal perspective. There is an opportunity for the government to adopt a long-term strategy for the gas distribution networks that either curtails the iron mains replacement programme or alters it to prepare the network for hydrogen conversion; both options could substantially reduce the long-term cost of supplying heat to UK buildings.

Key Words

UK ; Hydrogen ; Gas Network ; Decarbonisation ; MARKEL

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ID: 098608

Impact of a large penetration of wind generation on the GB gas / Qadrdan, Meysam; Chaudry, Modassar; Jianzhong Wu; Jenkins, Nick

Qadrdan, Meysam	Journal Article
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Publication

2010.

Summary/Abstract

Wind power is expected to be the major element of renewable electricity generation in Great Britain (GB) by 2020 with a capacity of around 30 GW. The potential impact of a large amount of wind generation on the GB gas network was investigated using a combined gas and electricity network model. The varying nature of gas and electric power flows, network support facilities such as gas storage and compressors, and the power ramping characteristics of various power plants were considered. Three case studies were modelled, one case uses the existing network and the other two make use of a hypothesised network in 2020 with two distinct levels of wind generation representing low and high wind periods. The simulation results show that a large penetration of wind generation will influence the electricity generation mix as the wind power varies. Gas-fired generation is used to compensate for wind variability. This will cause increased flows and compressor power consumption on the gas network. Linepack depletion during low wind periods was shown to limit the ability of the gas network to fully supply gas-fired generators.

Key Words

Combined Cycle Gas Turbine ; CCGT ; Gas Network ; Wind Generation Variability ; Gas Turbine

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ID: 099475

In the pipeline: militants target Russia's oil and gas network / Collins, Gabe

Collins, Gabe	Journal Article
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Publication

2010.

Key Words

Oil ; Russia ; Pipeline ; Militants ; Gas Network

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ID: 163561

Is there a future for the gas network in a low carbon energy system? / Hickey, Conor

Hickey, Conor	Journal Article
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Summary/Abstract

This paper evaluates the potential low carbon opportunities for and challenges to the utilisation and financial performance of Ireland's gas distribution network within a series of low carbon scenarios. There has been a limited amount of academic literature published on the future implications of gas demand on gas networks. This paper takes the unique perspective of assessing the stranded asset risk to a utility operating a gas network in the context of a low carbon energy system. Building on established emissions reduction scenarios, a financial model is developed from an integrated energy system model to understand the financial risks associated with continued investment in gas networks. We find that higher network tariffs are required for consumers in the future to cover network costs, even though gas consumption grows relative to current consumption levels in low carbon scenarios with carbon capture and storage.

Key Words

Investment ; Modelling ; Energy Systems ; Gas Network ; TIMES ; Decarbonisation ;
Stranded Assets

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