It could also * potentially * be used for storage of power from intermittent sources such as wind and solar — I stress potentially, because as yet the process isn't practical due to low efficiency and the cost
of electrolyzers and fuel cells.
Additionally, installation
of electrolyzer systems on electrical grids for power - to - gas applications, which integrate renewable energy, grid services and energy storage will require large - capacity, cost - effective hydrogen storage.
Not exact matches
A downside
of fuel cells, however, is that they have a capital cost in the thousands
of dollars per kilowatt
of capacity, and the round - trip efficiency through the
electrolyzer to the fuel cell and then back into current is less than 50 percent — meaning that for every two kilowatt - hours put in the bank, only one comes back out again.
Oxygen electrochemistry plays a key role in renewable energy technologies such as fuel cells and
electrolyzers, but the slow kinetics
of the oxygen evolution reaction (OER) limit the performance and commercialization
of such devices.
«We included the cost
of making solar panels,
electrolyzers, batteries and everything else.
Ni also reported that with recent upgrades, their cells can transform CO2 to CO at double the rate
of other CO2 - splitting
electrolyzers of a comparable size, which could help them process large volumes
of CO2 when scaled up.
The PBCTF facilitates testing
of anode electrocatalysts and high temperature membranes at
electrolyzer relevant conditions.
Production capacity will be upgraded in 2016 to 5 kg per hour with the installation
of a 250 kW PEM
electrolyzer stack.
NREL's
electrolyzer stack test bed is capable
of testing PEM
electrolyzer stacks up to 4,000 A DC, 250 V DC, and 30 bar.
Rashkeev, S., and Glazoff, M., «Control
of Oxygen Delamination in Solid Oxide
Electrolyzer Cells via Modifying Operational Regime,» Applied Physics Letters, Vol.
«Evaluation
of proton - conducting membranes for use in a sulfur dioxide depolarized
electrolyzer.»
Production
of fuel cells,
electrolyzers and hydrogen storage tanks with lower cost and higher efficiency will be enabled by the work in Research Area 2 (lead by SINTEF).
The DOE contract continues the development
of the solid oxide fuel cell (SOFC) technology for hydrogen production using electrolysis through a solid oxide
electrolyzer cell (SOEC).
The system consists
of two polymer electrolyte membrane
electrolyzers in... Read more →
This technology could be revived, with more modern and cheaper
electrolyzers, and the advent
of methane cracking and small modular reactors would eventually allow ammonia production anywhere in the world.