Hydrogen Storage to Reinforce Sustainability of Renewable Energy

Manila Bulletin, May 26, 2019 | Go to article overview

Hydrogen Storage to Reinforce Sustainability of Renewable Energy


By Myrna M. Velasco

MUNICH, Germany - With the "green-leaning" transformative phase happening in the energy sector globally, hydrogen storage is being dangled as the "next major innovation" that can further advance the sustainability of renewable energy (RE) deployments.

For countries wanting to increase RE installations to keep pace with the world's climate agenda or to comply with policies such as the Renewable Portfolio Standards (RPS) due for implementation next year in the Philippines, industrial giant Siemens AG is advancing "green hydrogen" storage to sort out the intermittency dilemmas of RE technologies, primarily wind and solar.

Siemens and other European firm-partners Verbund and Voestalpine have successfully deployed their pilot "green hydrogen storage" in Linz, Austria and have brought this facility to commercial fruition spring this year.

The next step for the industrial giant will be to scale it for the RE storage - primarily for wind energy in Germany; before dangling it for massive installations as complement to RE solutions for the world.

Through the use of proton exchange membrane (PEM) electrolyzer or what is referred to as "water electrolysis technology", renewable energy sources can be turned into hydrogen and they can be re-used as electricity as needed in an electricity system.

Green hydrogen storage technology is seen ideal to marry with power markets intending mammoth RE deployments and also to reinforce reliability in power grids. For the Philippines, in particular, it has cast long-term RE investments to be underpinned by the government-enforced RPS or the mandate for distribution utilities (DUs) to secure prescribed percentage of their power supply from RE sources.

The need for energy storage as a coupling to the on-and-off generation of RE sources on a massive scale has been under experiment for several years, but the "cost piece of the puzzle" or the commerciality aspect and the completeness of solution of proposed technologies have yet to concretize their way into markets. …

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