Comparison Concept Store Water 
Green Car Congress
DECEMBER 16, 2015
Researchers from Purdue University and École Polytechnique Fédérale de Lausanne (EPFL) in Switzerland are proposing a new integrated process involving the co-production of hydrogen and electricity from solar thermal energy—a concept they label “hydricity”.
Green Car Congress
DECEMBER 18, 2022
Scaling up the production of what we call green hydrogen is a priority for researchers around the world because it offers a carbon-free way to store electricity from any source. Green hydrogen is a carbon-free method that uses an electrolyzer to split water into hydrogen and oxygen gas.
Green Car Congress
AUGUST 22, 2022
Because so much energy is lost turning steam back into water in the Rankine cycle, at most a third of the power in the steam can be converted into electricity. In comparison, the Brayton cycle has a theoretical conversion efficiency upwards of 50%. It may not sound super significant, but it was quite a path to get here.
Green Car Congress
JULY 9, 2013
The basic concept of power-to-gas (or e-Gas, as Audi calls it), is to “store” excess renewable electricity by producing hydrogen, which can then either be converted to methane; injected into the gas distribution grid directly; or used as a vehicle fuel.
Baua Electric
FEBRUARY 9, 2024
Engineers from both Daimler and Linde have co-developed sLH2, a new process for handling and storing sub-cooled liquid hydrogen – an approach that allows for a higher hydrogen storage density, faster refueling, and superior energy efficiency than gaseous hydrogen. The best part? What happens next is anyone’s guess.
Green Car Congress
JUNE 14, 2011
Metal hydride tanks store hydrogen in a relatively manageable volume but are very heavy and expensive, as well as operating only at high temperatures or far too slowly. Our concept has the following advantages: Compared to carbon dioxide, solid bicarbonates are easy to handle and highly soluble in aqueous media (96 g L -1 NaHCO 3.
Green Car Congress
FEBRUARY 26, 2015
Researchers at Pacific Northwest National Laboratory (PNNL) have developed a new zinc-polyiodide redox flow battery offering more than two times the energy density of the next-best flow battery used to store renewable energy and support the power grid. This process converts energy that’s chemically stored in the electrolyte into electricity.
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