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Per-kilogram prices of some synthetic radioisotopes range to trillions of dollars. ... ( mg / kg ) Price [7] Year Source Notes USD/kg USD/L [c] 1: H: Hydrogen ...
At an electricity cost of $0.06/kWh, as set out in the Department of Energy hydrogen production targets for 2015, [73] the hydrogen cost is $3/kg. The US DOE target price for hydrogen in 2020 is $2.30/kg, requiring an electricity cost of $0.037/kWh, which is achievable given recent PPA tenders for wind and solar in many regions. [74]
The following table shows a range of estimates of the levelized costs of gray, blue, and green hydrogen, expressed in terms of US$ per kg of H 2 (where data provided in other currencies or units, the average exchange rate to US dollars in the given year are used, and 1 kg of H 2 is assumed to have a calorific value of 33.3kWh).
The current national gas price average is $3.62 per gallon. The average cost of gas has decreased 15% in the last two years, from when it was $4.27 per gallon.
A price of $2/kg is considered by many to be a potential tipping point that would make green hydrogen competitive against grey hydrogen. [ 37 ] [ 38 ] [ 39 ] It is cheapest to produce green hydrogen with surplus renewable power that would otherwise be curtailed , which favours electrolysers capable of responding to low and variable power levels ...
Compressed hydrogen is a storage form whereby hydrogen gas is kept under pressures to increase the storage density. Compressed hydrogen in hydrogen tanks at 350 bar (5,000 psi) and 700 bar (10,000 psi) are used for hydrogen tank systems in vehicles, based on type IV carbon-composite technology.
Hydrogen is a chemical element; it has symbol H and atomic number 1. It is the lightest element and, at standard conditions, is a gas of diatomic molecules with the formula H 2, sometimes called dihydrogen, [11] hydrogen gas, molecular hydrogen, or simply hydrogen. It is colorless, odorless, [12] non-toxic, and highly combustible.
[54] [55] [56] Hydrogen fuel cell vehicles were chosen over battery electric vehicles due to the cold weather prevalent in Hebei Province. [54] The substantial use of hydrogen was criticised, given that much of China's hydrogen is "black hydrogen", produced by burning coal. [57] This meant that each kilo of hydrogen produced around 15–20 kg ...