EI LIVE I Evaluating the energy balance and efficiency of a whole hydrogen energy system

The global imperative to significantly reduce greenhouse gas (GHG) emissions has led to a growing interest in the role of hydrogen in the energy transition. With the UK's legally binding targets to achieve 'net zero' by 2050, understanding the efficiencies and emissions of hydrogen in comparison to other fuels is paramount for informed decision-making in energy policy.
This webinar presents the findings of a study aimed at comprehensively analysing the energy balance and efficiency of the entire hydrogen energy system, from production to consumption, within a UK setting. The study, conducted in phases, delved into three specific areas of the hydrogen supply chain: production, transmission, storage, and distribution, as well as usage and consumption across various sectors including electricity, heating, and transportation.
The Research report was published in May of 2022, and can be viewed here: publishing.ene...
Key Findings:
(1) Efficiency Ranges: Study shows inefficiencies in hydrogen production and consumption. Distribution/storage has minimal impact. Technologies like liquefaction and long-distance trucking are less efficient but viable.
(2) Feedstock Comparison: Analysis of natural gas, blue hydrogen, green hydrogen, and UK electricity highlights hydrogen's emission reduction potential. Blue hydrogen reduces emissions but increases feedstock consumption. Green hydrogen offers greater reductions despite current lower efficiency.
(3) Blue Hydrogen vs. Natural Gas: Switching to blue hydrogen cuts emissions but raises feedstock consumption and costs.
(4) Green Hydrogen vs. Electrification: Comparing applications like FCVs and CHP systems reveals trade-offs between emissions reduction and efficiency. Green hydrogen offers emissions benefits but efficiency varies based on renewable energy sources.