Original sentence: $565 billion dollars in cast, or about $1.90 per GGE.Critics of a hydrogen economy argue that for many planned applications of hydrogen, direct distribution and use of energy in the form of electricity, or alternate means of storage such as chemical batteries, fuel plus fuel cells, of production of liquid synthetic fuels from CO2 (see methanol economy), might accomplish many of the same net goals of a hydrogen economy, while requiring only a small fraction of the investment in new infrastructure.Proponents of a hydrogen economy suggest that hydrogen is an environmentally cleaner source of energy to end-users, particularly in transportation applications, without release of pollutants (such as greenhouse gasses) at the point of end use; and that these advantages may hold similarly with use of hydrogen produced with energy from fossil fuels, if carbon capture or carbon sequestration methods are utilized at the site of energy or hydrogen production.These issues are not yet decided, in part due to rapid advances in all phases of technology, and rapidly shifting costs of various means of energy transmission and storage
Edited sentence: $565 billion dollars, or about $1.90 per GGE.However, other energy storage mediums with similar properties such as batteries are also available.Hydrogen is an environmentally clean storage of energy for end-users, particularly in transportation applications, without release of pollutants (such as greenhouse gasses) at the point of end use