Energy generation

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Generating green hydrogen from biomass, an abundant renewable energy source

https://techxplore.com/news/2022-07-green-hydrogen-biomass-abundant-renewable.html
Posted July 13, 2022
An innovative technology to produce hydrogen from biomass has been developed by a team of researchers from the Indian Institute of Science (IISc). The team was led by S. Dasappa, Professor at the Center for Sustainable Technologies, and Chair of the Interdisciplinary Center for Energy Research at IISc.
The process consists of two steps. In the first step, biomass is converted into syngas-a hydrogen-rich fuel gas mixture-in a novel reactor using oxygen and steam. In the second step, pure hydrogen is generated from syngas using an indigenously developed low-pressure gas separation unit.

Microbes can produce electricity out of thin air. Scientists have finally figured out how to harvest it

https://bigthink.com/the-present/air-gen
By Robby Berman, posted February 21, 2020
A microbial organism pulls electricity from water in the air
Hidden in the mud along the banks of Washington D.C.'s Potomac River may be a profound new source of electricity
The microbe makes nanowires that produce a charge from water vapor in ordinary air
Already capable of powering small electronics, it appears that larger-scale power generation is within reach

Inventor harvests methane gas from ditches and ponds to power his moped

By Kris de decker, posted July 12 2021
https://notechmagazine.com/2021/07/inventor-harvests-methane-gas-from-ditches-and-ponds-to-power-his-moped.html
Gijs Schalkx harvests this methane from ponds - by hand - and uses it to power his moped