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It’s electrifying! This is how Earth could be entirely powered by sustainable energy

Can you imagine a world powered by 100% renewable electricity and fuels? It may seem fantasy, but a collaborative team of scientists has just shown this dream is theoretically possible—if we can garner global buy-in.

The newly published research, led by Professor James Ward from the University of South Australia and co-authored by a team including Luca Coscieme from Trinity College Dublin, explains how a renewable future is achievable.

The study, published in the international journal, Energies, explores what changes are needed in our mix and technologies, as well as in our , if we are to achieve 100% renewability in a way that supports everyone, and the myriad of life on our planet.

The fully -powered future envisioned by the team would require a significant ‘electrification’ of our energy mix and raises important questions about the potential conflict between land demands for renewable fuel production.

Explaining the work in some detail, Luca Coscieme, Research Fellow in Trinity’s School of Natural Sciences, said:

“Firstly, the high fuel needs of today’s would have to be reduced as it would require an unsustainably vast amount of land to be covered with biomass plantations if we were to produce enough to satisfy the same levels.

“Additionally, our research shows that we would need to radically ‘electrify’ the energy supply of such countries—including Ireland—with the assumption that these changes could supply 75% of society’s final energy demands. We would also need to adopt technology in which electricity is used to convert atmospheric gases into synthetic fuels.

“We very much hope that the approach designed in this research will inform our vision of sustainable futures and also guide national planning by contextualizing energy needs within the broader consumption patterns we see in other countries with energy and forest product consumption profiles that—if adopted worldwide—could theoretically be met by high-tech renewably derived fuels. Countries such as Argentina, Cyprus, Greece, Portugal and Spain are great examples in this regard.

“Even so, the success of this green ideal will be highly dependent on major future technological developments, in the efficiency of electrification and in producing and refining new synthetic fuels. Such a scenario is still likely to require the use of a substantial—albeit hopefully sustainable—fraction of the world’s forest areas.”

Global analysis shows major electric utilities not moving to greener alternatives

More information:
James Ward et al, Renewable Energy Equivalent Footprint (REEF): A Method for Envisioning a Sustainable Energy Future, Energies (2020). DOI: 10.3390/en13236160

It’s electrifying! This is how Earth could be entirely powered by sustainable energy (2020, December 22)
retrieved 25 December 2020
from https://techxplore.com/news/2020-12-electrifying-earth-powered-sustainable-energy.html

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