The future of the UK gas network
The future of the UK gas network
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DOI：
10.1016/j.enpol.2013.05.030
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发表时间：
2013-09
期刊：
影响因子：
9
通讯作者：
P. Dodds;W. McDowall
中科院分区：
文献类型：
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作者：
P. Dodds;W. McDowall
英国拥有广泛的天然气管道网络，为84%的家庭提供天然气。先前使用英国MARKAL能源系统模型对脱碳途径进行的研究得出结论，到2050年，低压天然气网络应大部分被废弃，但出于安全原因，建筑物附近的大部分铁管目前正在提前更换。我们的研究表明，该计划不会长期锁定天然气的使用。我们研究了英国能源系统中天然气网络的潜在未来用途，使用改进版的UK MARKAL，为天然气网络引入了许多脱碳选项，包括生物甲烷，向天然气注入氢气和转换网络以提供氢气。我们的结论是，从成本最优的角度来看，氢气转化是唯一的气体脱碳选择，可以使天然气网络长期继续为大多数建筑物提供能源。政府有机会对天然气分销网络采取长期战略，要么削减铁干线更换计划，要么改变它，为氢转化做好准备;这两种选择都可以大幅降低向英国建筑物供热的长期成本。
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.