02471nas a2200241   4500000000100000008004100001653001900042653003300061653003300094653003400127653003000161100002500191700002400216700001700240700002900257700002100286245011000307856007200417300001200489490000700501520170700508022001402215       2024                            d10aGreen hydrogen10aMulticriteria decision model10aAnalytical hierarchy process10aGeographic information system10aSite suitability analysis1 aRamprasad Thekkethil1 aMurali Ananthakumar1 aDhiraj Kumar1 aVengdhanathan Srinivasan1 aMahesh Kalshetty00aGreen hydrogen hubs in India: A first order analytical hierarchy process for site selection across states  uhttps://www.sciencedirect.com/science/article/pii/S0360319924006979  a767-7740 v633 aGreen hydrogen can be the transitional solution required to reduce anthropogenic emissions and enhance energy independency from fossil fuel. To improve green hydrogen adoption, a cluster-based infrastructure, called a hydrogen hub, is devised taking into account the demand-supply interplay coupled with transport ease. In this paper, we have identified sites across states that are conducive for hydrogen hubs. It involves a multicriteria decision-making (MCDM) framework deployed to assign priorities within competing set of criteria. A comprehensive analytical hierarchy process (AHP) is used to rank criteria that are connected to establish a functioning hydrogen hub. These criteria include, but not limited to, proximity to refineries, fertilizer plants, substations, chlor-alkali units, steel manufacturing plants, water availability, access to gas pipelines, railway line access, and finally distance to highways. Our analyses indicate that proximity to refineries and fertilizers scored higher (scores directly proportional to importance) while railway line access scored the least. These prioritised scores are used to spatially locate sites using geographical information system. In a total of thirteen states identified, Gujarat had the largest parcel of most suitable land for setting up hydrogen hub followed by Maharashtra and Andhra Pradesh. For India to set up a functioning hydrogen economy and achieve green hydrogen goals, it is important to identify states that can drive the agenda forward. This paper illustrates a way (amongst many available ways) to identify states based on their strength and capability to fulfil the national goal of 5 million tons of green hydrogen by 2030.  a0360-3199