As we head towards 2030, we will measure our success across a range of strategic outcomes:  Progress towards 2030 ambition: 5GW of low carbon hydrogen production capacity with potential for rapid expansion post-2030; hope to see 1GW production capacity by 2025.  Decarbonisation of existing UK hydrogen supply: Existing hydrogen supply decarbonised through CCUS and/or supplemented by electrolytic hydrogen injection.  Lower cost of hydrogen production: A decrease in the cost of low carbon hydrogen production driven by learning from early projects, more mature mart and technology innovation.  End-to-end hydrogen system with a diverse range of users: End user der in place across a range of sectors and locations across the UK, with significar more end users able and willing to switch.  Increased public awareness: Public and consumers are aware of and accep use of hydrogen across the energy system.  Promote UK economic growth and opportunities, including jobs: Establis UK capabilities and supply chain that translates into economic benefits, including through exports. UK is an international leader and attractive place fo inward investment.  Emissions reduction under Carbon Budgets 4 and 5: Hydrogen makes a material contribution to the UK's emissions reduction targets, including throug setting us on a pathway to achieving CB6.  Preparation for ramp up beyond 2030 - on a pathway to net zero: Requis hydrogen infrastructure and technologies are in place with potential for expan Well established regulatory and market framework in place.  Evidence-based policy development: Modelling of hydrogen in the energy system and input assumptions improved based on wider literature, qualitative quantitative evidence and real-world learning. Delivery evidence from innovati and deployment projects collected and used to improve policy making. We are developing clear indicators and metrics to monitor progress against these outcomes (set out in Chapter 5). This will be important to ensure that we remain on track to rapidly scale up activity across the hydrogen value chain over the course of the 2020s - so that we can realise our 2030 vision, and can position the UK hydrogen economy for scale up beyond this to CB6 and net zero, while making the most of the opportunities that hydrogen holds for UK businesses and citizens.